Climate and average weather in Rio Bonito
In Rio Bonito, the weather is muggy, hot, wet, and partly cloudy and remarkably steady, with daytime highs holding near hot levels all year. The wettest stretch peaks around December.
Over the course of the year, the temperature in Rio Bonito typically varies from 18°C to 30°C, and is rarely below 15°C or above 33°C. February is the hottest month of the year, while July is the coldest.
Based on the travel score, the best time of year to visit Rio Bonito for warm-weather activities is from late April to mid October.
- Hottest
- Feb
- 30°
- Coldest
- Jul
- 18°
- Wettest
- Dec
- 243 mm
- Driest
- Jul
- 44 mm
- Rain / yr
- 1585 mm
- 163 wet days
- Daylight
- 10.6–13.4 h
- shortest–longest
- Elevation
- 67 m
- 22.7°S
- Clearest
- Jul
- 42% cloud
Rio Bonito is human settlement in Brazil.
Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.
Rio Bonito weather by month, at a glance
The whole year in one picture — sky, rain, humidity, temperature and travel score. Click any band to jump to its full chart.
Each stripe is one measure across the whole year, stacked so a single day reads top to bottom. The sky band runs overcast grey on top down to clear blue at the base — more blue means sunnier — followed by the rainfall curve, the humidity band, a temperature strip that tints each stretch of the year by how warm its average high is, and the travel-score line at the foot. Scan straight down any date to read that day across every measure at once; the score climbs highest around late April to mid October.
Temperature through the year
Daily average highs and lows in Rio Bonito, from 1991–2020 of climate data. The shaded bands show the range most days fall in — 10th to 90th percentile.
Temperatures in Rio Bonito stay fairly even through the year, without a distinct hot or cool season. The warmest month is February, with an average high of 30°C and low of 23°C; the coolest is July, with an average low of 18°C and high of 25°C.
Days typically run about 6°C warmer than nights year-round.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°C) | 30 | 30 | 29 | 28 | 26 | 25 | 25 | 25 | 26 | 26 | 27 | 29 |
| Avg low (°C) | 23 | 23 | 23 | 21 | 19 | 18 | 18 | 18 | 19 | 20 | 21 | 23 |
| Avg high (°C) | Avg low (°C) | |
|---|---|---|
| Jan | 30 | 23 |
| Feb | 30 | 23 |
| Mar | 29 | 23 |
| Apr | 28 | 21 |
| May | 26 | 19 |
| Jun | 25 | 18 |
| Jul | 25 | 18 |
| Aug | 25 | 18 |
| Sep | 26 | 19 |
| Oct | 26 | 20 |
| Nov | 27 | 21 |
| Dec | 29 | 23 |
How hot and cold Rio Bonito really feels
The felt-temperature range through the year — heat index on the day's high (summer humidity), wind chill on the night's low (winter wind). The dashed lines are the plain thermometer; the gap is how much hotter or colder it really feels.
On the hottest afternoons, once humidity is folded in, Rio Bonito feels like about 35°C (around February 2). About 95 days a year carry some heat stress, peaking in February.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Feels-like high (°C) | 34 | 34 | 33 | 30 | 26 | 25 | 25 | 25 | 26 | 26 | 28 | 32 |
| Air high (°C) | 30 | 30 | 29 | 28 | 26 | 25 | 25 | 25 | 26 | 26 | 27 | 29 |
| Feels-like low (°C) | 23 | 23 | 23 | 21 | 19 | 18 | 18 | 18 | 19 | 20 | 21 | 23 |
| Air low (°C) | 23 | 23 | 23 | 21 | 19 | 18 | 18 | 18 | 19 | 20 | 21 | 23 |
| Feels-like high (°C) | Air high (°C) | Feels-like low (°C) | Air low (°C) | |
|---|---|---|---|---|
| Jan | 34 | 30 | 23 | 23 |
| Feb | 34 | 30 | 23 | 23 |
| Mar | 33 | 29 | 23 | 23 |
| Apr | 30 | 28 | 21 | 21 |
| May | 26 | 26 | 19 | 19 |
| Jun | 25 | 25 | 18 | 18 |
| Jul | 25 | 25 | 18 | 18 |
| Aug | 25 | 25 | 18 | 18 |
| Sep | 26 | 26 | 19 | 19 |
| Oct | 26 | 26 | 20 | 20 |
| Nov | 28 | 27 | 21 | 21 |
| Dec | 32 | 29 | 23 | 23 |
Average hourly temperature in Rio Bonito
A compact picture of the whole year, hour by hour: each column is a day, each row an hour, and the color is the modeled average temperature. Darker overlays mark night, lighter ones the civil-twilight hours around sunrise and sunset.
Read left to right for the day of the year and top to bottom for the hour of the day; the color is the modeled temperature, cool blues through to hot reds on the same scale as the other charts. A vertical slice is a single day's swing — coolest just before dawn, warmest in the mid-afternoon — while a horizontal slice follows one hour across the seasons. The darker overlay marks night and the lighter one the twilight around sunrise and sunset. Colors run warmest on February afternoons, near 30°C, and coldest before dawn in July, near 18°C.
Rio Bonito weather by month
Every month at a glance. Click a month for its detailed page.
| Month | High / Low (°C) | Rainfall (mm) | Wet days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|
| Jan | 30° / 23° | 237 | 18.7 | 13.2 | 4.0 |
| Feb | 30° / 23° | 173 | 14.9 | 12.8 | 4.2 |
| Mar | 29° / 23° | 211 | 20.1 | 12.2 | 4.2 |
| Apr | 28° / 21° | 110 | 14.3 | 11.5 | 5.7 |
| May | 26° / 19° | 83 | 11.7 | 10.9 | 6.6 |
| Jun | 25° / 18° | 46 | 7.2 | 10.6 | 7.5 |
| Jul | 25° / 18° | 44 | 7.6 | 10.7 | 7.6 |
| Aug | 25° / 18° | 44 | 7.9 | 11.2 | 7.5 |
| Sep | 26° / 19° | 81 | 10.7 | 11.9 | 6.7 |
| Oct | 26° / 20° | 108 | 12.5 | 12.5 | 6.1 |
| Nov | 27° / 21° | 205 | 18 | 13.1 | 5.1 |
| Dec | 29° / 23° | 243 | 19.8 | 13.4 | 4.4 |
Chance of rain
How likely it is to rain on a typical day, and how that shifts across the wetter and drier seasons.
Rio Bonito gets about 1585 mm of precipitation a year. On a typical day the chance of rain is often wet, but that rises and falls sharply with the seasons.
The wetter season lasts 5.8 months, from around Oct 24 to Apr 17, peaking in December at about 66% chance on a given day. The drier stretch runs the rest of the year, bottoming out around Jun 25.
December is the wettest month by volume, with 243 mm over about 20 wet days; July is the driest, with 44 mm.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Rain on a day (%) | 60 | 54 | 63 | 48 | 38 | 25 | 24 | 25 | 34 | 42 | 59 | 64 |
| Rain days | 19 | 15 | 20 | 14 | 12 | 7 | 8 | 8 | 11 | 13 | 18 | 20 |
| Rain on a day (%) | Rain days | |
|---|---|---|
| Jan | 60 | 19 |
| Feb | 54 | 15 |
| Mar | 63 | 20 |
| Apr | 48 | 14 |
| May | 38 | 12 |
| Jun | 25 | 7 |
| Jul | 24 | 8 |
| Aug | 25 | 8 |
| Sep | 34 | 11 |
| Oct | 42 | 13 |
| Nov | 59 | 18 |
| Dec | 64 | 20 |
Monthly rainfall
Over a full year, Rio Bonito collects about 1585 mm of rain across 163 wet days — roughly 132 mm in an average month.
It doesn’t fall evenly. December is the wettest month with 243 mm, while July is the driest at just 44 mm. The three wettest months alone bring about 44% of the year’s total.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Rainfall (mm) | 237 | 173 | 211 | 110 | 83 | 46 | 44 | 44 | 81 | 108 | 205 | 243 |
| Rain days | 19 | 15 | 20 | 14 | 12 | 7 | 8 | 8 | 11 | 13 | 18 | 20 |
| Rainfall (mm) | Rain days | |
|---|---|---|
| Jan | 237 | 19 |
| Feb | 173 | 15 |
| Mar | 211 | 20 |
| Apr | 110 | 14 |
| May | 83 | 12 |
| Jun | 46 | 7 |
| Jul | 44 | 8 |
| Aug | 44 | 8 |
| Sep | 81 | 11 |
| Oct | 108 | 13 |
| Nov | 205 | 18 |
| Dec | 243 | 20 |
Clouds and sunshine
How often the daytime sky is clear, partly cloudy or overcast.
In Rio Bonito, the average share of the sky covered by clouds shows significant seasonal variation over the course of the year.
The clearer part of the year begins around April 2 and lasts for 5.5 months, ending around September 16. The clearest month is August, when the sky is clear, mostly clear, or partly cloudy 66% of the time on average.
The cloudier part of the year begins around September 17 and lasts for 6.5 months, ending around April 1. The cloudiest month is November, when it is overcast or mostly cloudy 70% of the time.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Clearer (%) | 35 | 43 | 44 | 58 | 61 | 66 | 66 | 66 | 51 | 37 | 30 | 32 |
| Cloudier (%) | 65 | 57 | 56 | 42 | 39 | 34 | 34 | 34 | 49 | 63 | 70 | 68 |
| Clearer (%) | Cloudier (%) | |
|---|---|---|
| Jan | 35 | 65 |
| Feb | 43 | 57 |
| Mar | 44 | 56 |
| Apr | 58 | 42 |
| May | 61 | 39 |
| Jun | 66 | 34 |
| Jul | 66 | 34 |
| Aug | 66 | 34 |
| Sep | 51 | 49 |
| Oct | 37 | 63 |
| Nov | 30 | 70 |
| Dec | 32 | 68 |
Daylight, sunrise and sunset
Hours of daylight through the year, with sunrise and sunset times.
The gold band is daylight — sunrise runs along its lower edge, sunset along the upper — so it widens toward summer and pinches toward winter, with night the dark area above and below. The longest day, around January 1, brings about 13 h 24 min of light; the shortest, around June 9, only 10 h 36 min — a swing of roughly 2 h 48 min.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight (h) | 13.2 | 12.8 | 12.2 | 11.5 | 10.9 | 10.6 | 10.7 | 11.2 | 11.9 | 12.5 | 13.1 | 13.4 |
| Sunrise (AM) | 6:22 | 6:42 | 6:55 | 7:06 | 7:19 | 7:32 | 7:34 | 7:18 | 6:49 | 6:19 | 6:02 | 6:05 |
| Sunset (PM) | 7:37 | 7:28 | 7:05 | 6:35 | 6:14 | 6:09 | 6:18 | 6:31 | 6:41 | 6:52 | 7:09 | 7:28 |
| Daylight (h) | Sunrise (AM) | Sunset (PM) | |
|---|---|---|---|
| Jan | 13.2 | 6:22 | 7:37 |
| Feb | 12.8 | 6:42 | 7:28 |
| Mar | 12.2 | 6:55 | 7:05 |
| Apr | 11.5 | 7:06 | 6:35 |
| May | 10.9 | 7:19 | 6:14 |
| Jun | 10.6 | 7:32 | 6:09 |
| Jul | 10.7 | 7:34 | 6:18 |
| Aug | 11.2 | 7:18 | 6:31 |
| Sep | 11.9 | 6:49 | 6:41 |
| Oct | 12.5 | 6:19 | 6:52 |
| Nov | 13.1 | 6:02 | 7:09 |
| Dec | 13.4 | 6:05 | 7:28 |
Sunny days
How many genuinely sunny days each month brings — days the sky stays clear or mostly clear — banded into plain-language zones.
Rio Bonito averages about 10 sunny days a month — counting the days the sky stays clear or mostly clear — with a clear seasonal swing between 5 and 17 days.
The sunnier stretch runs 5.4 months, from around Apr 9 to Sep 19. The sunniest month is June, with roughly 16 sunny days (bright).
The greyest month is December, down near 5 sunny days — about 66% fewer than the June peak.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sunny days | 7 | 8 | 9 | 12 | 13 | 16 | 16 | 16 | 12 | 7 | 5 | 6 |
| Sky | Gloomy | Mixed | Mixed | Mixed | Mixed | Bright | Bright | Bright | Mixed | Gloomy | Gloomy | Gloomy |
| Sunny days | Sky | |
|---|---|---|
| Jan | 7 | Gloomy |
| Feb | 8 | Mixed |
| Mar | 9 | Mixed |
| Apr | 12 | Mixed |
| May | 13 | Mixed |
| Jun | 16 | Bright |
| Jul | 16 | Bright |
| Aug | 16 | Bright |
| Sep | 12 | Mixed |
| Oct | 7 | Gloomy |
| Nov | 5 | Gloomy |
| Dec | 6 | Gloomy |
Humidity comfort
Share of days at each humidity comfort level, based on the dew point — the measure that tracks how muggy it actually feels.
Humidity comfort is graded by the dew point — the temperature at which the air would be fully saturated — because it tracks how muggy it actually feels far better than relative humidity does. A low dew point feels dry and crisp; a high one feels sticky and oppressive no matter the reading on a humidity gauge.
In Rio Bonito, how humid it feels changes noticeably over the year.
The more humid part of the year lasts 7.1 months, from around October 17 to May 19. The muggiest month is January, when the air feels humid, muggy or worse about 100% of the time.
The most comfortable stretch runs from around May 20 to October 16, and August is the most comfortable month — the air is dry or comfortable 17% of the time.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Dry (%) | 0 | 0 | 0 | 0 | 0 | 1 | 2 | 2 | 1 | 0 | 0 | 0 |
| Comfortable (%) | 0 | 0 | 0 | 0 | 5 | 9 | 14 | 15 | 10 | 6 | 2 | 0 |
| Humid (%) | 1 | 0 | 1 | 10 | 31 | 40 | 52 | 49 | 40 | 22 | 14 | 3 |
| Muggy (%) | 10 | 8 | 15 | 31 | 47 | 47 | 32 | 33 | 44 | 46 | 37 | 20 |
| Oppressive (%) | 64 | 68 | 68 | 55 | 17 | 3 | 0 | 1 | 5 | 26 | 44 | 64 |
| Miserable (%) | 25 | 24 | 16 | 3 | 0 | 0 | 0 | 0 | 0 | 0 | 3 | 13 |
| Dry (%) | Comfortable (%) | Humid (%) | Muggy (%) | Oppressive (%) | Miserable (%) | |
|---|---|---|---|---|---|---|
| Jan | 0 | 0 | 1 | 10 | 64 | 25 |
| Feb | 0 | 0 | 0 | 8 | 68 | 24 |
| Mar | 0 | 0 | 1 | 15 | 68 | 16 |
| Apr | 0 | 0 | 10 | 31 | 55 | 3 |
| May | 0 | 5 | 31 | 47 | 17 | 0 |
| Jun | 1 | 9 | 40 | 47 | 3 | 0 |
| Jul | 2 | 14 | 52 | 32 | 0 | 0 |
| Aug | 2 | 15 | 49 | 33 | 1 | 0 |
| Sep | 1 | 10 | 40 | 44 | 5 | 0 |
| Oct | 0 | 6 | 22 | 46 | 26 | 0 |
| Nov | 0 | 2 | 14 | 37 | 44 | 3 |
| Dec | 0 | 0 | 3 | 20 | 64 | 13 |
Wind
Average wind speed through the year, banded into plain-language speed zones so a number reads as 'breezy' or 'calm' without knowing the scale.
This is the average sustained wind speed at the standard 10 metres above open ground — the steady flow a weather station reports, not the sharper gusts that come and go, which can run half again as fast. It's the number that says whether a place is generally breezy or calm.
Across the year, average wind speed in Rio Bonito is typically calm, near 8 km/h, and varies little with the seasons.
The windier part of the year lasts 4.4 months, from around Jul 31 to Dec 11. The windiest month is September, averaging about 10 km/h (calm).
The calmer part of the year runs from around Dec 12 to Jul 30, with June the calmest month at about 7 km/h.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Wind speed (km/h) | 8 | 8 | 7 | 7 | 8 | 7 | 8 | 9 | 10 | 10 | 9 | 8 |
| Feels | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm |
| Wind speed (km/h) | Feels | |
|---|---|---|
| Jan | 8 | calm |
| Feb | 8 | calm |
| Mar | 7 | calm |
| Apr | 7 | calm |
| May | 8 | calm |
| Jun | 7 | calm |
| Jul | 8 | calm |
| Aug | 9 | calm |
| Sep | 10 | calm |
| Oct | 10 | calm |
| Nov | 9 | calm |
| Dec | 8 | calm |
Hazard calendar for Rio Bonito
When the seasonal hazards worth planning around — the rainy season, tropical-cyclone risk and dust haze — are active through the year.
Rio Bonito's rainy season runs November–April, when most of the year's rain falls.
Best time to visit Rio Bonito
To characterize how pleasant the weather is in Rio Bonito throughout the year, we compute two travel scores — one for general sightseeing, one for beach and pool weather.
Around early May, Rio Bonito is still near the start of its best-weather window — great conditions with the peak-season crowds not yet at full swing.
Inferred from the travel-score curve; month-by-month visitor numbers are a planned addition.
The travel score favors clear, rainless days with daytime highs between 18°C and 28°C. Based on this score, the best time of year to visit Rio Bonito for general outdoor tourist activities is from late April to mid October, with a peak score in the last week of July.
The travel score (filled area), and its constituents: the temperature score (red line), the cloud cover score (blue line), and the precipitation score (green line).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Travel score (0–10) | 4.1 | 4.1 | 4.2 | 5.7 | 6.6 | 7.5 | 7.6 | 7.5 | 6.8 | 6.0 | 5.1 | 4.4 |
| Rating | fair | fair | fair | good | good | good | ideal | good | good | good | fair | fair |
| Travel score (0–10) | Rating | |
|---|---|---|
| Jan | 4.1 | fair |
| Feb | 4.1 | fair |
| Mar | 4.2 | fair |
| Apr | 5.7 | good |
| May | 6.6 | good |
| Jun | 7.5 | good |
| Jul | 7.6 | ideal |
| Aug | 7.5 | good |
| Sep | 6.8 | good |
| Oct | 6.0 | good |
| Nov | 5.1 | fair |
| Dec | 4.4 | fair |
The beach/pool score favors clear, rainless days with daytime highs between 24°C and 34°C. Based on this score, the best times of year to visit Rio Bonito for hot-weather activities run from late January to early March and again from late March to late October, with a peak score in the last week of June.
The beach/pool score (filled area), and its constituents: the temperature score (red line), the cloud cover score (blue line), and the precipitation score (green line).
What to pack for Rio Bonito, by month
Month by month, what's worth putting in the bag — from the temperature range, rain chance, sun and wind. Tap a month for a quick packing note.
Rio Bonito packs about the same all year — highs hold near 30°C. Across the year the things worth having are light clothes, rain gear and sun protection.
In February, Rio Bonito sees daytime highs around 30°C and nights near 23°C. Pack light clothes, rain gear and sun protection. About 15 days see rain.
Sea temperature near Rio Bonito
Average ocean temperature at the nearest coast, month by month, banded into swim-comfort zones — the other half of the beach question.
The sea at the nearest coast (about 46 km away) is warmest in March at about 26°C and coldest in September near 21°C.
The water stays above 20°C all year — warm enough for a swim any month.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sea temperature (°C) | 25 | 25 | 26 | 25 | 24 | 23 | 22 | 22 | 21 | 22 | 23 | 24 |
| Comfort | Warm | Warm | Warm | Warm | Refreshing | Refreshing | Refreshing | Refreshing | Refreshing | Refreshing | Refreshing | Warm |
| Sea temperature (°C) | Comfort | |
|---|---|---|
| Jan | 25 | Warm |
| Feb | 25 | Warm |
| Mar | 26 | Warm |
| Apr | 25 | Warm |
| May | 24 | Refreshing |
| Jun | 23 | Refreshing |
| Jul | 22 | Refreshing |
| Aug | 22 | Refreshing |
| Sep | 21 | Refreshing |
| Oct | 22 | Refreshing |
| Nov | 23 | Refreshing |
| Dec | 24 | Warm |
UV index (midday) in Rio Bonito by month
Clear-sky midday UV index through the year, shaded by the WHO exposure levels — how much sun protection each month calls for.
Under clear skies, the midday UV index in Rio Bonito peaks around January 13 at about 14 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near July 13 at about 5 (moderate).
The index reaches 3 or more — the level where the WHO recommends sun protection — every month of the year.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index (midday) | 14 | 13 | 12 | 9 | 7 | 6 | 5 | 8 | 7 | 12 | 13 | 14 |
| Level | Extreme | Extreme | Extreme | Very high | High | High | Moderate | Very high | High | Extreme | Extreme | Extreme |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 14 | Extreme |
| Feb | 13 | Extreme |
| Mar | 12 | Extreme |
| Apr | 9 | Very high |
| May | 7 | High |
| Jun | 6 | High |
| Jul | 5 | Moderate |
| Aug | 8 | Very high |
| Sep | 7 | High |
| Oct | 12 | Extreme |
| Nov | 13 | Extreme |
| Dec | 14 | Extreme |
Average hourly UV index in Rio Bonito
Modeled clear-sky UV for every hour of every day — when in the day sun protection actually matters.
The whole year hour by hour: each column is a day, each row an hour, and the color is the modeled clear-sky UV index — the midday peak scaled down as the sun sits lower in the sky. Darker overlays mark night, lighter ones the civil-twilight hours around sunrise and sunset.
UV falls off far faster than brightness as the sun drops, so even in January the burn window is concentrated in the middle of the day: about 9 hours a day reach index 3 (protection recommended), and 7 hours reach 6 or more. Mornings and late afternoons stay comparatively gentle year round.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV ≥ 3 (h/day) | 9 | 8.5 | 8 | 7 | 6 | 5 | 4.5 | 6 | 6.5 | 8 | 8.5 | 9 |
| UV ≥ 6 (h/day) | 7 | 6.5 | 6 | 4.5 | 2 | 0 | 0 | 3 | 3 | 6 | 6.5 | 7 |
| UV ≥ 3 (h/day) | UV ≥ 6 (h/day) | |
|---|---|---|
| Jan | 9 | 7 |
| Feb | 8.5 | 6.5 |
| Mar | 8 | 6 |
| Apr | 7 | 4.5 |
| May | 6 | 2 |
| Jun | 5 | 0 |
| Jul | 4.5 | 0 |
| Aug | 6 | 3 |
| Sep | 6.5 | 3 |
| Oct | 8 | 6 |
| Nov | 8.5 | 6.5 |
| Dec | 9 | 7 |
Air quality in Rio Bonito by month
Average fine-particle pollution (PM2.5) through the year — so you can see which months the air is worst, not just the yearly average.
Air quality in Rio Bonito is worst in September — around 19 µg/m³ PM2.5 (moderate), about 1.9× the cleanest month (March, 10 µg/m³).
Modeled monthly averages (CAMS reanalysis, 2015–2024).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PM2.5 (µg/m³) | 11 | 11 | 10 | 12 | 15 | 16 | 15 | 15 | 19 | 13 | 11 | 10 |
| Level | Good | Good | Good | Good | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Good | Good |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 11 | Good |
| Feb | 11 | Good |
| Mar | 10 | Good |
| Apr | 12 | Good |
| May | 15 | Moderate |
| Jun | 16 | Moderate |
| Jul | 15 | Moderate |
| Aug | 15 | Moderate |
| Sep | 19 | Moderate |
| Oct | 13 | Moderate |
| Nov | 11 | Good |
| Dec | 10 | Good |
Growing season
Rio Bonito is frost-free year round — even the coldest nights rarely reach freezing, so there is no start or end to the growing season.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Frost-free chance (%) | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 |
| Frost nights | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Frost-free chance (%) | Frost nights | |
|---|---|---|
| Jan | 100 | 0 |
| Feb | 100 | 0 |
| Mar | 100 | 0 |
| Apr | 100 | 0 |
| May | 100 | 0 |
| Jun | 100 | 0 |
| Jul | 100 | 0 |
| Aug | 100 | 0 |
| Sep | 100 | 0 |
| Oct | 100 | 0 |
| Nov | 100 | 0 |
| Dec | 100 | 0 |
Growing degree days
Growing degree days tally heat above 10°C: each day adds however many degrees its average temperature runs over that threshold, and cold days add nothing. Rio Bonito banks about 5,043 degree days a year, and the running total — which growers use to time plantings and predict maturity — climbs fastest around February.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Growing degree days (°C·days) | 514 | 470 | 497 | 438 | 387 | 350 | 346 | 354 | 367 | 412 | 425 | 485 |
| Growing degree days (°C·days) | |
|---|---|
| Jan | 514 |
| Feb | 470 |
| Mar | 497 |
| Apr | 438 |
| May | 387 |
| Jun | 350 |
| Jul | 346 |
| Aug | 354 |
| Sep | 367 |
| Oct | 412 |
| Nov | 425 |
| Dec | 485 |
Solar energy
Average daily shortwave solar energy reaching the ground, banded into brightness zones so the number means something at a glance.
Solar energy is how much sunlight actually reaches the ground each day, measured in kilowatt-hours per square metre (kWh/m²) — the combined effect of how long the sun is up, how high it climbs, and how much cloud gets in the way. It's the raw fuel a solar panel has to work with: for scale, 1 kWh/m² a day is dim and wintry, while 7+ is desert-bright.
Rio Bonito receives about 4.9 kWh/m² a day of solar energy on average — bright — with a clear seasonal swing between 3.5 and 6.2 kWh/m².
The brighter stretch of the year lasts 6.2 months, from around Sep 24 to Mar 30. The brightest month is February, averaging about 6.1 kWh/m² (intense).
The dimmest month is June, down near 3.5 kWh/m² — roughly 43% less than the February peak.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Solar energy (kWh/m²) | 6.0 | 6.2 | 5.2 | 4.6 | 3.7 | 3.5 | 3.6 | 4.3 | 4.8 | 5.4 | 5.4 | 5.9 |
| Level | Intense | Intense | Bright | Bright | Moderate | Moderate | Moderate | Bright | Bright | Bright | Bright | Bright |
| Solar energy (kWh/m²) | Level | |
|---|---|---|
| Jan | 6.0 | Intense |
| Feb | 6.2 | Intense |
| Mar | 5.2 | Bright |
| Apr | 4.6 | Bright |
| May | 3.7 | Moderate |
| Jun | 3.5 | Moderate |
| Jul | 3.6 | Moderate |
| Aug | 4.3 | Bright |
| Sep | 4.8 | Bright |
| Oct | 5.4 | Bright |
| Nov | 5.4 | Bright |
| Dec | 5.9 | Bright |
Where is Rio Bonito?
Rio Bonito sits at 22.7°S, 42.6°W, 67 m above sea level, in Brazil. The nearest listed city is Tanguá, 11 km away.
Topography around Rio Bonito
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Rio Bonito.
Within 3 km, the terrain around Rio Bonito has large variations in elevation — a maximum elevation change of 765 m around an average of 161 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 932 m; within 80 km, very significant variations in elevation — a maximum elevation change of 2,252 m.
The land around Rio Bonito is covered by trees (64%) and grassland (23%) within 3 km, trees (60%) and grassland (38%) within 16 km, and trees (41%), water (31%) and grassland (22%) within 80 km.
Brazil travel facts
- Travel advisory
- Level 2
- Exercise Increased Caution
- Power plugs
- Type C / N
- 127 / 220 V · 60 Hz
- Prices
- ≈ 46% of US
- price level, 2025
- GDP per capita
- $10,713
- 2025
- Happiness
- 6.6 / 10
- World Happiness, 2025
- Safe drinking water
- 89%
- of population, 2024
- Homicide rate
- 19.3
- per 100k, 2023
- Road deaths
- 16
- per 100k/yr, 2019
- Income group
- Upper middle
- World Bank
- English
- Low
- EF EPI 482
- Religion
Sources: World Bank, US State Department, World Happiness Report, WHO/UNICEF, EF EPI, CIA World Factbook.
Data sources
Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for Rio Bonito (-22.7086°, -42.6097°, elevation 67 m), computed from hourly ERA5 reanalysis — contains modified Copernicus Climate Change Service information. Sun figures are astronomical calculations, not observations. City data © GeoNames, CC BY 4.0. Map outlines from Natural Earth (public domain); interactive map © Google. Sea temperatures are the NOAA OISST v2.1 1991–2020 monthly climatology (public domain), sampled at the nearest ocean point. UV index is derived from CAMS (Copernicus Atmosphere Monitoring Service) clear-sky UV data — contains modified Copernicus Atmosphere Monitoring Service information. Monthly air-quality (PM2.5) seasonality is from the CAMS EAC4 reanalysis (Copernicus Atmosphere Monitoring Service), scaled to the WHO annual mean where available. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).