Climate and average weather in Formosa da Serra Negra
In Formosa da Serra Negra, the weather is sweltering, wet, and mostly clear and remarkably steady, with daytime highs holding near sweltering levels all year. The wettest stretch peaks around March.
Over the course of the year, the temperature in Formosa da Serra Negra typically varies from 22°C to 35°C, and is rarely below 20°C or above 37°C. September is the hottest month of the year, while January is the coldest.
Based on the travel score, the best time of year to visit Formosa da Serra Negra for warm-weather activities is from late April to mid August.
- Hottest
- Sep
- 35°
- Coldest
- Jan
- 22°
- Wettest
- Mar
- 236 mm
- Driest
- Aug
- 1 mm
- Rain / yr
- 1249 mm
- 154 wet days
- Daylight
- 11.6–12.4 h
- shortest–longest
- Elevation
- 340 m
- 6.4°S
- Clearest
- Aug
- 28% cloud
Formosa da Serra Negra 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 August.
Temperature through the year
Daily average highs and lows in Formosa da Serra Negra, from 1991–2020 of climate data. The shaded bands show the range most days fall in — 10th to 90th percentile.
Temperatures in Formosa da Serra Negra stay fairly even through the year, without a distinct hot or cool season. The warmest month is September, with an average high of 35°C and low of 23°C; the coolest is January, with an average low of 22°C and high of 30°C.
Days typically run about 10°C warmer than nights, with the widest day–night swing (around 12°C) in August.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°C) | 30 | 30 | 30 | 31 | 32 | 33 | 33 | 34 | 35 | 33 | 32 | 31 |
| Avg low (°C) | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 23 | 23 | 23 | 22 |
| Avg high (°C) | Avg low (°C) | |
|---|---|---|
| Jan | 30 | 22 |
| Feb | 30 | 22 |
| Mar | 30 | 22 |
| Apr | 31 | 22 |
| May | 32 | 22 |
| Jun | 33 | 22 |
| Jul | 33 | 22 |
| Aug | 34 | 22 |
| Sep | 35 | 23 |
| Oct | 33 | 23 |
| Nov | 32 | 23 |
| Dec | 31 | 22 |
How hot and cold Formosa da Serra Negra 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, Formosa da Serra Negra feels like about 36°C (around October 1). Nearly every day a year carries some heat stress, peaking in October.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Feels-like high (°C) | 34 | 34 | 34 | 34 | 35 | 34 | 33 | 34 | 36 | 36 | 35 | 34 |
| Air high (°C) | 30 | 30 | 30 | 31 | 32 | 33 | 33 | 34 | 35 | 33 | 32 | 31 |
| Feels-like low (°C) | 22 | 22 | 22 | 22 | 22 | 22 | 21 | 22 | 23 | 23 | 23 | 22 |
| Air low (°C) | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 23 | 23 | 23 | 22 |
| Feels-like high (°C) | Air high (°C) | Feels-like low (°C) | Air low (°C) | |
|---|---|---|---|---|
| Jan | 34 | 30 | 22 | 22 |
| Feb | 34 | 30 | 22 | 22 |
| Mar | 34 | 30 | 22 | 22 |
| Apr | 34 | 31 | 22 | 22 |
| May | 35 | 32 | 22 | 22 |
| Jun | 34 | 33 | 22 | 22 |
| Jul | 33 | 33 | 21 | 22 |
| Aug | 34 | 34 | 22 | 22 |
| Sep | 36 | 35 | 23 | 23 |
| Oct | 36 | 33 | 23 | 23 |
| Nov | 35 | 32 | 23 | 23 |
| Dec | 34 | 31 | 22 | 22 |
Average hourly temperature in Formosa da Serra Negra
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 September afternoons, near 35°C, and coldest before dawn in January, near 22°C.
Formosa da Serra Negra 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° / 22° | 234 | 26.2 | 12.3 | 3.0 |
| Feb | 30° / 22° | 222 | 24.3 | 12.2 | 2.9 |
| Mar | 30° / 22° | 236 | 26.8 | 12 | 2.9 |
| Apr | 31° / 22° | 158 | 19.7 | 11.9 | 3.4 |
| May | 32° / 22° | 53 | 9 | 11.7 | 4.3 |
| Jun | 33° / 22° | 6 | 0.9 | 11.6 | 4.7 |
| Jul | 33° / 22° | 3 | 0.4 | 11.7 | 4.5 |
| Aug | 34° / 22° | 1 | 0.3 | 11.8 | 3.8 |
| Sep | 35° / 23° | 12 | 1.7 | 12 | 3.4 |
| Oct | 33° / 23° | 49 | 8.1 | 12.1 | 3.5 |
| Nov | 32° / 23° | 112 | 15.5 | 12.3 | 3.6 |
| Dec | 31° / 22° | 163 | 21 | 12.4 | 3.4 |
Chance of rain
How likely it is to rain on a typical day, and how that shifts across the wetter and drier seasons.
Formosa da Serra Negra gets about 1249 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 6.0 months, from around Nov 5 to May 5, peaking in March at about 87% chance on a given day. The drier stretch runs the rest of the year, bottoming out around Jul 30.
March is the wettest month by volume, with 236 mm over about 27 wet days; August is the driest, with 1 mm.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Rain on a day (%) | 84 | 86 | 86 | 66 | 29 | 4 | 1 | 1 | 6 | 26 | 51 | 69 |
| Rain days | 26 | 24 | 27 | 20 | 9 | 1 | 0 | 0 | 2 | 8 | 16 | 21 |
| Rain on a day (%) | Rain days | |
|---|---|---|
| Jan | 84 | 26 |
| Feb | 86 | 24 |
| Mar | 86 | 27 |
| Apr | 66 | 20 |
| May | 29 | 9 |
| Jun | 4 | 1 |
| Jul | 1 | 0 |
| Aug | 1 | 0 |
| Sep | 6 | 2 |
| Oct | 26 | 8 |
| Nov | 51 | 16 |
| Dec | 69 | 21 |
Monthly rainfall
Over a full year, Formosa da Serra Negra collects about 1249 mm of rain across 154 wet days — roughly 104 mm in an average month.
It doesn’t fall evenly. March is the wettest month with 236 mm, while August is the driest at just 1 mm. The three wettest months alone bring about 55% of the year’s total.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Rainfall (mm) | 234 | 222 | 236 | 158 | 53 | 6 | 3 | 1 | 12 | 49 | 112 | 163 |
| Rain days | 26 | 24 | 27 | 20 | 9 | 1 | 0 | 0 | 2 | 8 | 16 | 21 |
| Rainfall (mm) | Rain days | |
|---|---|---|
| Jan | 234 | 26 |
| Feb | 222 | 24 |
| Mar | 236 | 27 |
| Apr | 158 | 20 |
| May | 53 | 9 |
| Jun | 6 | 1 |
| Jul | 3 | 0 |
| Aug | 1 | 0 |
| Sep | 12 | 2 |
| Oct | 49 | 8 |
| Nov | 112 | 16 |
| Dec | 163 | 21 |
Clouds and sunshine
How often the daytime sky is clear, partly cloudy or overcast.
In Formosa da Serra Negra, 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 May 13 and lasts for 5.6 months, ending around October 29. The clearest month is August, when the sky is clear, mostly clear, or partly cloudy 88% of the time on average.
The cloudier part of the year begins around October 30 and lasts for 6.4 months, ending around May 12. The cloudiest month is February, when it is overcast or mostly cloudy 88% of the time.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Clearer (%) | 12 | 12 | 12 | 26 | 50 | 75 | 86 | 88 | 82 | 60 | 34 | 24 |
| Cloudier (%) | 88 | 88 | 88 | 74 | 50 | 25 | 14 | 12 | 18 | 40 | 66 | 76 |
| Clearer (%) | Cloudier (%) | |
|---|---|---|
| Jan | 12 | 88 |
| Feb | 12 | 88 |
| Mar | 12 | 88 |
| Apr | 26 | 74 |
| May | 50 | 50 |
| Jun | 75 | 25 |
| Jul | 86 | 14 |
| Aug | 88 | 12 |
| Sep | 82 | 18 |
| Oct | 60 | 40 |
| Nov | 34 | 66 |
| Dec | 24 | 76 |
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 12 h 24 min of light; the shortest, around June 3, only 11 h 36 min — a swing of roughly 0 h 48 min.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight (h) | 12.3 | 12.2 | 12.0 | 11.9 | 11.7 | 11.6 | 11.7 | 11.8 | 12.0 | 12.1 | 12.3 | 12.4 |
| Sunrise (AM) | 6:04 | 6:13 | 6:13 | 6:09 | 6:10 | 6:16 | 6:21 | 6:15 | 6:00 | 5:45 | 5:41 | 5:50 |
| Sunset (PM) | 6:24 | 6:26 | 6:16 | 6:01 | 5:52 | 5:54 | 6:00 | 6:02 | 5:58 | 5:54 | 5:59 | 6:12 |
| Daylight (h) | Sunrise (AM) | Sunset (PM) | |
|---|---|---|---|
| Jan | 12.3 | 6:04 | 6:24 |
| Feb | 12.2 | 6:13 | 6:26 |
| Mar | 12.0 | 6:13 | 6:16 |
| Apr | 11.9 | 6:09 | 6:01 |
| May | 11.7 | 6:10 | 5:52 |
| Jun | 11.6 | 6:16 | 5:54 |
| Jul | 11.7 | 6:21 | 6:00 |
| Aug | 11.8 | 6:15 | 6:02 |
| Sep | 12.0 | 6:00 | 5:58 |
| Oct | 12.1 | 5:45 | 5:54 |
| Nov | 12.3 | 5:41 | 5:59 |
| Dec | 12.4 | 5:50 | 6:12 |
Sunny days
How many genuinely sunny days each month brings — days the sky stays clear or mostly clear — banded into plain-language zones.
Formosa da Serra Negra averages about 9 sunny days a month — counting the days the sky stays clear or mostly clear — with a clear seasonal swing between 0 and 23 days.
The sunnier stretch runs 5.1 months, from around May 24 to Oct 24. The sunniest month is August, with roughly 22 sunny days (bright).
The greyest month is March, down near 1 sunny days — about 97% fewer than the August peak.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sunny days | 1 | 1 | 1 | 3 | 7 | 14 | 19 | 22 | 19 | 12 | 4 | 2 |
| Sky | Gloomy | Gloomy | Gloomy | Gloomy | Gloomy | Mixed | Bright | Bright | Bright | Mixed | Gloomy | Gloomy |
| Sunny days | Sky | |
|---|---|---|
| Jan | 1 | Gloomy |
| Feb | 1 | Gloomy |
| Mar | 1 | Gloomy |
| Apr | 3 | Gloomy |
| May | 7 | Gloomy |
| Jun | 14 | Mixed |
| Jul | 19 | Bright |
| Aug | 22 | Bright |
| Sep | 19 | Bright |
| Oct | 12 | Mixed |
| Nov | 4 | Gloomy |
| Dec | 2 | 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 Formosa da Serra Negra, how humid it feels changes dramatically over the year.
The more humid part of the year lasts 8.8 months, from around September 27 to June 21. 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 June 22 to September 26, and August is the most comfortable month — the air is dry or comfortable 45% of the time.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Dry (%) | 0 | 0 | 0 | 0 | 0 | 0 | 3 | 3 | 2 | 0 | 0 | 0 |
| Comfortable (%) | 0 | 0 | 0 | 0 | 0 | 6 | 28 | 41 | 20 | 2 | 0 | 0 |
| Humid (%) | 0 | 0 | 0 | 0 | 4 | 41 | 51 | 40 | 32 | 14 | 2 | 0 |
| Muggy (%) | 2 | 2 | 1 | 6 | 34 | 42 | 17 | 14 | 38 | 45 | 20 | 6 |
| Oppressive (%) | 98 | 98 | 98 | 93 | 62 | 11 | 2 | 1 | 9 | 38 | 78 | 94 |
| Miserable (%) | 0 | 0 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Dry (%) | Comfortable (%) | Humid (%) | Muggy (%) | Oppressive (%) | Miserable (%) | |
|---|---|---|---|---|---|---|
| Jan | 0 | 0 | 0 | 2 | 98 | 0 |
| Feb | 0 | 0 | 0 | 2 | 98 | 0 |
| Mar | 0 | 0 | 0 | 1 | 98 | 1 |
| Apr | 0 | 0 | 0 | 6 | 93 | 1 |
| May | 0 | 0 | 4 | 34 | 62 | 0 |
| Jun | 0 | 6 | 41 | 42 | 11 | 0 |
| Jul | 3 | 28 | 51 | 17 | 2 | 0 |
| Aug | 3 | 41 | 40 | 14 | 1 | 0 |
| Sep | 2 | 20 | 32 | 38 | 9 | 0 |
| Oct | 0 | 2 | 14 | 45 | 38 | 0 |
| Nov | 0 | 0 | 2 | 20 | 78 | 0 |
| Dec | 0 | 0 | 0 | 6 | 94 | 0 |
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 Formosa da Serra Negra is typically calm, near 7 km/h, and varies moderately with the seasons.
The windier part of the year lasts 5.1 months, from around May 17 to Oct 17. The windiest month is July, averaging about 10 km/h (calm).
The calmer part of the year runs from around Oct 18 to May 16, with March the calmest month at about 5 km/h.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Wind speed (km/h) | 5 | 5 | 5 | 6 | 7 | 9 | 10 | 10 | 9 | 7 | 6 | 6 |
| Feels | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm |
| Wind speed (km/h) | Feels | |
|---|---|---|
| Jan | 5 | calm |
| Feb | 5 | calm |
| Mar | 5 | calm |
| Apr | 6 | calm |
| May | 7 | calm |
| Jun | 9 | calm |
| Jul | 10 | calm |
| Aug | 10 | calm |
| Sep | 9 | calm |
| Oct | 7 | calm |
| Nov | 6 | calm |
| Dec | 6 | calm |
Hazard calendar for Formosa da Serra Negra
When the seasonal hazards worth planning around — the rainy season, tropical-cyclone risk and dust haze — are active through the year.
Formosa da Serra Negra's monsoon runs November–April, when most of the year's rain falls.
Best time to visit Formosa da Serra Negra
To characterize how pleasant the weather is in Formosa da Serra Negra throughout the year, we compute two travel scores — one for general sightseeing, one for beach and pool weather.
Around early August, Formosa da Serra Negra is still near the tail of its best-weather window — great conditions with the peak-season crowds already thinning.
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 Formosa da Serra Negra for general outdoor tourist activities is from late April to mid August, with a peak score in the second week of June.
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) | 3.0 | 2.9 | 2.9 | 3.4 | 4.2 | 4.7 | 4.5 | 3.8 | 3.4 | 3.5 | 3.6 | 3.4 |
| Rating | poor | poor | poor | poor | fair | fair | fair | fair | poor | fair | fair | poor |
| Travel score (0–10) | Rating | |
|---|---|---|
| Jan | 3.0 | poor |
| Feb | 2.9 | poor |
| Mar | 2.9 | poor |
| Apr | 3.4 | poor |
| May | 4.2 | fair |
| Jun | 4.7 | fair |
| Jul | 4.5 | fair |
| Aug | 3.8 | fair |
| Sep | 3.4 | poor |
| Oct | 3.5 | fair |
| Nov | 3.6 | fair |
| Dec | 3.4 | poor |
The beach/pool score favors clear, rainless days with daytime highs between 24°C and 34°C. Based on this score, the best time of year to visit Formosa da Serra Negra for hot-weather activities is from mid May to mid October, with a peak score in the last week of July.
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 Formosa da Serra Negra, 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.
Formosa da Serra Negra packs about the same all year — highs hold near 35°C. Across the year the things worth having are light clothes, sun protection and rain gear.
In September, Formosa da Serra Negra sees daytime highs around 35°C and nights near 23°C. Pack light clothes and sun protection.
UV index (midday) in Formosa da Serra Negra 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 Formosa da Serra Negra peaks around March 12 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 22 at about 10 (extreme).
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 | 15 | 15 | 14 | 11 | 10 | 10 | 11 | 12 | 12 | 12 | 10 |
| Level | Extreme | Extreme | Extreme | Extreme | Extreme | Very high | Extreme | Extreme | Extreme | Extreme | Extreme | Extreme |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 14 | Extreme |
| Feb | 15 | Extreme |
| Mar | 15 | Extreme |
| Apr | 14 | Extreme |
| May | 11 | Extreme |
| Jun | 10 | Very high |
| Jul | 10 | Extreme |
| Aug | 11 | Extreme |
| Sep | 12 | Extreme |
| Oct | 12 | Extreme |
| Nov | 12 | Extreme |
| Dec | 10 | Extreme |
Average hourly UV index in Formosa da Serra Negra
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 March the burn window is concentrated in the middle of the day: about 8.5 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) | 8.5 | 8.5 | 8.5 | 8 | 7.5 | 7 | 7 | 7.5 | 8 | 8 | 8 | 8 |
| UV ≥ 6 (h/day) | 6.5 | 6.5 | 7 | 6 | 5.5 | 5 | 5 | 5.5 | 6 | 6 | 6 | 5.5 |
| UV ≥ 3 (h/day) | UV ≥ 6 (h/day) | |
|---|---|---|
| Jan | 8.5 | 6.5 |
| Feb | 8.5 | 6.5 |
| Mar | 8.5 | 7 |
| Apr | 8 | 6 |
| May | 7.5 | 5.5 |
| Jun | 7 | 5 |
| Jul | 7 | 5 |
| Aug | 7.5 | 5.5 |
| Sep | 8 | 6 |
| Oct | 8 | 6 |
| Nov | 8 | 6 |
| Dec | 8 | 5.5 |
Air quality in Formosa da Serra Negra 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 Formosa da Serra Negra is worst in October — around 24 µg/m³ PM2.5 (moderate), about 5.2× the cleanest month (June, 5 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) | 12 | 11 | 11 | 10 | 7 | 5 | 5 | 12 | 20 | 24 | 19 | 15 |
| Level | Good | Good | Good | Good | Good | Good | Good | Good | Moderate | Moderate | Moderate | Moderate |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 12 | Good |
| Feb | 11 | Good |
| Mar | 11 | Good |
| Apr | 10 | Good |
| May | 7 | Good |
| Jun | 5 | Good |
| Jul | 5 | Good |
| Aug | 12 | Good |
| Sep | 20 | Moderate |
| Oct | 24 | Moderate |
| Nov | 19 | Moderate |
| Dec | 15 | Moderate |
Growing season
Formosa da Serra Negra 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. Formosa da Serra Negra banks about 6,200 degree days a year, and the running total — which growers use to time plantings and predict maturity — climbs fastest around September.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Growing degree days (°C·days) | 493 | 447 | 497 | 488 | 518 | 513 | 534 | 559 | 562 | 566 | 514 | 509 |
| Growing degree days (°C·days) | |
|---|---|
| Jan | 493 |
| Feb | 447 |
| Mar | 497 |
| Apr | 488 |
| May | 518 |
| Jun | 513 |
| Jul | 534 |
| Aug | 559 |
| Sep | 562 |
| Oct | 566 |
| Nov | 514 |
| Dec | 509 |
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.
Formosa da Serra Negra receives about 5.3 kWh/m² a day of solar energy on average — bright — with a clear seasonal swing between 4.5 and 6.5 kWh/m².
The brighter stretch of the year lasts 4.8 months, from around Jun 27 to Nov 19. The brightest month is September, averaging about 6.4 kWh/m² (intense).
The dimmest month is March, down near 4.6 kWh/m² — roughly 29% less than the September peak.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Solar energy (kWh/m²) | 4.6 | 4.7 | 4.6 | 4.7 | 4.9 | 5.2 | 5.6 | 6.2 | 6.4 | 6.1 | 5.4 | 5.0 |
| Level | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Intense | Intense | Intense | Bright | Bright |
| Solar energy (kWh/m²) | Level | |
|---|---|---|
| Jan | 4.6 | Bright |
| Feb | 4.7 | Bright |
| Mar | 4.6 | Bright |
| Apr | 4.7 | Bright |
| May | 4.9 | Bright |
| Jun | 5.2 | Bright |
| Jul | 5.6 | Bright |
| Aug | 6.2 | Intense |
| Sep | 6.4 | Intense |
| Oct | 6.1 | Intense |
| Nov | 5.4 | Bright |
| Dec | 5.0 | Bright |
Where is Formosa da Serra Negra?
Formosa da Serra Negra sits at 6.4°S, 46.2°W, 340 m above sea level, in Brazil. The nearest listed city is Grajaú, 70 km away.
Topography around Formosa da Serra Negra
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Formosa da Serra Negra.
Within 3 km, the terrain around Formosa da Serra Negra has only modest variations in elevation — a maximum elevation change of 110 m around an average of 294 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 447 m; within 80 km, significant variations in elevation — a maximum elevation change of 555 m.
The land around Formosa da Serra Negra is covered by trees (45%) and grassland (45%) within 3 km, trees (50%) and grassland (34%) within 16 km, and trees (43%), grassland (33%) and shrubs (21%) 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 Formosa da Serra Negra (-6.4446°, -46.1888°, elevation 340 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. 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).