Climate and average weather in São Francisco de Itabapoana
In São Francisco de Itabapoana, the weather is muggy, warm, wet, and partly cloudy and remarkably steady, with daytime highs holding near warm levels all year. The wettest stretch peaks around December.
Over the course of the year, the temperature in São Francisco de Itabapoana typically varies from 19°C to 28°C, and is rarely below 17°C or above 30°C. February is the hottest month of the year, while July is the coldest.
Based on the travel score, the best times of year to visit São Francisco de Itabapoana for warm-weather activities are from late January to late February and mid April to late October.
- Hottest
- Feb
- 28°
- Coldest
- Jul
- 19°
- Wettest
- Dec
- 172 mm
- Driest
- Jun
- 32 mm
- Rain / yr
- 1012 mm
- 126 wet days
- Daylight
- 10.7–13.3 h
- shortest–longest
- Elevation
- 1 m
- 21.3°S
- Clearest
- Jul
- 38% cloud
São Francisco de Itabapoana 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 mid April to late October.
Temperature through the year
Daily average highs and lows in São Francisco de Itabapoana, from 1991–2020 of climate data. The shaded bands show the range most days fall in — 10th to 90th percentile.
Temperatures in São Francisco de Itabapoana stay fairly even through the year, without a distinct hot or cool season. The warmest month is February, with an average high of 28°C and low of 24°C; the coolest is July, with an average low of 19°C and high of 24°C.
Days typically run about 4°C warmer than nights year-round.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°C) | 27 | 28 | 28 | 27 | 25 | 25 | 24 | 24 | 25 | 25 | 26 | 27 |
| Avg low (°C) | 24 | 24 | 24 | 23 | 21 | 20 | 19 | 19 | 20 | 21 | 22 | 23 |
| Avg high (°C) | Avg low (°C) | |
|---|---|---|
| Jan | 27 | 24 |
| Feb | 28 | 24 |
| Mar | 28 | 24 |
| Apr | 27 | 23 |
| May | 25 | 21 |
| Jun | 25 | 20 |
| Jul | 24 | 19 |
| Aug | 24 | 19 |
| Sep | 25 | 20 |
| Oct | 25 | 21 |
| Nov | 26 | 22 |
| Dec | 27 | 23 |
Average hourly temperature in São Francisco de Itabapoana
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 28°C, and coldest before dawn in July, near 19°C.
São Francisco de Itabapoana 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 | 27° / 24° | 110 | 10.8 | 13.2 | 6.2 |
| Feb | 28° / 24° | 71 | 8 | 12.7 | 6.6 |
| Mar | 28° / 24° | 117 | 13.6 | 12.2 | 6.0 |
| Apr | 27° / 23° | 79 | 12.1 | 11.5 | 6.4 |
| May | 25° / 21° | 59 | 10.1 | 11 | 7.0 |
| Jun | 25° / 20° | 32 | 6.8 | 10.7 | 7.8 |
| Jul | 24° / 19° | 35 | 7.6 | 10.8 | 7.8 |
| Aug | 24° / 19° | 33 | 6.8 | 11.3 | 7.9 |
| Sep | 25° / 20° | 56 | 8.8 | 11.9 | 7.3 |
| Oct | 25° / 21° | 85 | 10.5 | 12.5 | 6.7 |
| Nov | 26° / 22° | 163 | 15.4 | 13 | 5.7 |
| Dec | 27° / 23° | 172 | 15.6 | 13.3 | 5.6 |
Chance of rain
How likely it is to rain on a typical day, and how that shifts across the wetter and drier seasons.
São Francisco de Itabapoana gets about 1012 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 2.7 months, from around Oct 22 to Jan 12, peaking in November at about 54% chance on a given day. The drier stretch runs the rest of the year, bottoming out around Aug 5.
December is the wettest month by volume, with 172 mm over about 16 wet days; June is the driest, with 32 mm.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Rain on a day (%) | 35 | 30 | 43 | 40 | 33 | 23 | 24 | 22 | 29 | 34 | 51 | 50 |
| Rain days | 11 | 8 | 14 | 12 | 10 | 7 | 8 | 7 | 9 | 11 | 15 | 16 |
| Rain on a day (%) | Rain days | |
|---|---|---|
| Jan | 35 | 11 |
| Feb | 30 | 8 |
| Mar | 43 | 14 |
| Apr | 40 | 12 |
| May | 33 | 10 |
| Jun | 23 | 7 |
| Jul | 24 | 8 |
| Aug | 22 | 7 |
| Sep | 29 | 9 |
| Oct | 34 | 11 |
| Nov | 51 | 15 |
| Dec | 50 | 16 |
Monthly rainfall
Over a full year, São Francisco de Itabapoana collects about 1012 mm of rain across 126 wet days — roughly 84 mm in an average month.
It doesn’t fall evenly. December is the wettest month with 172 mm, while June is the driest at just 32 mm. The three wettest months alone bring about 45% of the year’s total.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Rainfall (mm) | 110 | 71 | 117 | 79 | 59 | 32 | 35 | 33 | 56 | 85 | 163 | 172 |
| Rain days | 11 | 8 | 14 | 12 | 10 | 7 | 8 | 7 | 9 | 11 | 15 | 16 |
| Rainfall (mm) | Rain days | |
|---|---|---|
| Jan | 110 | 11 |
| Feb | 71 | 8 |
| Mar | 117 | 14 |
| Apr | 79 | 12 |
| May | 59 | 10 |
| Jun | 32 | 7 |
| Jul | 35 | 8 |
| Aug | 33 | 7 |
| Sep | 56 | 9 |
| Oct | 85 | 11 |
| Nov | 163 | 15 |
| Dec | 172 | 16 |
Clouds and sunshine
How often the daytime sky is clear, partly cloudy or overcast.
In São Francisco de Itabapoana, 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 March 29 and lasts for 5.8 months, ending around September 20. The clearest month is June, when the sky is clear, mostly clear, or partly cloudy 73% of the time on average.
The cloudier part of the year begins around September 21 and lasts for 6.2 months, ending around March 28. The cloudiest month is November, when it is overcast or mostly cloudy 66% of the time.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Clearer (%) | 43 | 51 | 52 | 65 | 69 | 73 | 72 | 71 | 61 | 44 | 34 | 36 |
| Cloudier (%) | 57 | 49 | 48 | 35 | 31 | 27 | 28 | 29 | 39 | 56 | 66 | 64 |
| Clearer (%) | Cloudier (%) | |
|---|---|---|
| Jan | 43 | 57 |
| Feb | 51 | 49 |
| Mar | 52 | 48 |
| Apr | 65 | 35 |
| May | 69 | 31 |
| Jun | 73 | 27 |
| Jul | 72 | 28 |
| Aug | 71 | 29 |
| Sep | 61 | 39 |
| Oct | 44 | 56 |
| Nov | 34 | 66 |
| Dec | 36 | 64 |
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 18 min of light; the shortest, around June 8, only 10 h 42 min — a swing of roughly 2 h 36 min.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight (h) | 13.2 | 12.7 | 12.2 | 11.5 | 11.0 | 10.7 | 10.8 | 11.3 | 11.9 | 12.5 | 13.0 | 13.3 |
| Sunrise (AM) | 6:18 | 6:37 | 6:49 | 6:59 | 7:10 | 7:23 | 7:25 | 7:10 | 6:42 | 6:14 | 5:58 | 6:01 |
| Sunset (PM) | 7:28 | 7:20 | 6:58 | 6:29 | 6:10 | 6:05 | 6:14 | 6:26 | 6:35 | 6:44 | 7:00 | 7:19 |
| Daylight (h) | Sunrise (AM) | Sunset (PM) | |
|---|---|---|---|
| Jan | 13.2 | 6:18 | 7:28 |
| Feb | 12.7 | 6:37 | 7:20 |
| Mar | 12.2 | 6:49 | 6:58 |
| Apr | 11.5 | 6:59 | 6:29 |
| May | 11.0 | 7:10 | 6:10 |
| Jun | 10.7 | 7:23 | 6:05 |
| Jul | 10.8 | 7:25 | 6:14 |
| Aug | 11.3 | 7:10 | 6:26 |
| Sep | 11.9 | 6:42 | 6:35 |
| Oct | 12.5 | 6:14 | 6:44 |
| Nov | 13.0 | 5:58 | 7:00 |
| Dec | 13.3 | 6:01 | 7:19 |
Sunny days
How many genuinely sunny days each month brings — days the sky stays clear or mostly clear — banded into plain-language zones.
São Francisco de Itabapoana averages about 12 sunny days a month — counting the days the sky stays clear or mostly clear — with a clear seasonal swing between 5 and 18 days.
The sunnier stretch runs 5.7 months, from around Mar 30 to Sep 20. The sunniest month is July, with roughly 17 sunny days (bright).
The greyest month is December, down near 7 sunny days — about 62% fewer than the July peak.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sunny days | 9 | 11 | 11 | 14 | 15 | 16 | 18 | 18 | 14 | 9 | 6 | 7 |
| Sky | Mixed | Mixed | Mixed | Mixed | Mixed | Bright | Bright | Bright | Mixed | Mixed | Gloomy | Gloomy |
| Sunny days | Sky | |
|---|---|---|
| Jan | 9 | Mixed |
| Feb | 11 | Mixed |
| Mar | 11 | Mixed |
| Apr | 14 | Mixed |
| May | 15 | Mixed |
| Jun | 16 | Bright |
| Jul | 18 | Bright |
| Aug | 18 | Bright |
| Sep | 14 | Mixed |
| Oct | 9 | Mixed |
| Nov | 6 | Gloomy |
| Dec | 7 | 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 São Francisco de Itabapoana, how humid it feels changes noticeably over the year.
The more humid part of the year lasts 6.8 months, from around October 24 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 23, and August is the most comfortable month — the air is dry or comfortable 15% of the time.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Dry (%) | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 2 | 2 | 1 | 0 | 0 |
| Comfortable (%) | 0 | 0 | 0 | 0 | 4 | 8 | 11 | 13 | 8 | 6 | 2 | 0 |
| Humid (%) | 0 | 0 | 1 | 8 | 25 | 29 | 40 | 37 | 27 | 16 | 10 | 2 |
| Muggy (%) | 6 | 4 | 10 | 28 | 49 | 60 | 48 | 48 | 56 | 49 | 33 | 14 |
| Oppressive (%) | 90 | 89 | 77 | 61 | 22 | 3 | 0 | 0 | 6 | 28 | 55 | 80 |
| Miserable (%) | 4 | 7 | 12 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 3 |
| Dry (%) | Comfortable (%) | Humid (%) | Muggy (%) | Oppressive (%) | Miserable (%) | |
|---|---|---|---|---|---|---|
| Jan | 0 | 0 | 0 | 6 | 90 | 4 |
| Feb | 0 | 0 | 0 | 4 | 89 | 7 |
| Mar | 0 | 0 | 1 | 10 | 77 | 12 |
| Apr | 0 | 0 | 8 | 28 | 61 | 2 |
| May | 0 | 4 | 25 | 49 | 22 | 0 |
| Jun | 0 | 8 | 29 | 60 | 3 | 0 |
| Jul | 1 | 11 | 40 | 48 | 0 | 0 |
| Aug | 2 | 13 | 37 | 48 | 0 | 0 |
| Sep | 2 | 8 | 27 | 56 | 6 | 0 |
| Oct | 1 | 6 | 16 | 49 | 28 | 0 |
| Nov | 0 | 2 | 10 | 33 | 55 | 0 |
| Dec | 0 | 0 | 2 | 14 | 80 | 3 |
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 São Francisco de Itabapoana is typically light breeze, near 14 km/h, and varies moderately with the seasons.
The windier part of the year lasts 6.6 months, from around Aug 4 to Feb 21. The windiest month is September, averaging about 17 km/h (light breeze).
The calmer part of the year runs from around Feb 22 to Aug 3, with May the calmest month at about 11 km/h.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Wind speed (km/h) | 15 | 15 | 13 | 12 | 11 | 12 | 13 | 15 | 17 | 17 | 16 | 14 |
| Feels | light breeze | light breeze | light breeze | calm | calm | calm | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze |
| Wind speed (km/h) | Feels | |
|---|---|---|
| Jan | 15 | light breeze |
| Feb | 15 | light breeze |
| Mar | 13 | light breeze |
| Apr | 12 | calm |
| May | 11 | calm |
| Jun | 12 | calm |
| Jul | 13 | light breeze |
| Aug | 15 | light breeze |
| Sep | 17 | light breeze |
| Oct | 17 | light breeze |
| Nov | 16 | light breeze |
| Dec | 14 | light breeze |
Hazard calendar for São Francisco de Itabapoana
When the seasonal hazards worth planning around — the rainy season, tropical-cyclone risk and dust haze — are active through the year.
São Francisco de Itabapoana's rainy season runs October–January, when most of the year's rain falls.
Best time to visit São Francisco de Itabapoana
To characterize how pleasant the weather is in São Francisco de Itabapoana throughout the year, we compute two travel scores — one for general sightseeing, one for beach and pool weather.
Around late April, São Francisco de Itabapoana 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 times of year to visit São Francisco de Itabapoana for general outdoor tourist activities run from late January to late February and again from mid April to late October, with a peak score in the first week of August.
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) | 6.2 | 6.5 | 6.0 | 6.4 | 7.0 | 7.7 | 7.8 | 7.9 | 7.3 | 6.7 | 5.7 | 5.6 |
| Rating | good | good | good | good | good | ideal | ideal | ideal | good | good | good | good |
| Travel score (0–10) | Rating | |
|---|---|---|
| Jan | 6.2 | good |
| Feb | 6.5 | good |
| Mar | 6.0 | good |
| Apr | 6.4 | good |
| May | 7.0 | good |
| Jun | 7.7 | ideal |
| Jul | 7.8 | ideal |
| Aug | 7.9 | ideal |
| Sep | 7.3 | good |
| Oct | 6.7 | good |
| Nov | 5.7 | good |
| Dec | 5.6 | good |
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 São Francisco de Itabapoana for hot-weather activities is from mid December to early November, with a peak score in the second week of February.
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 São Francisco de Itabapoana, 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.
São Francisco de Itabapoana packs about the same all year — highs hold near 28°C. Across the year the things worth having are light clothes, rain gear and sun protection.
In February, São Francisco de Itabapoana sees daytime highs around 28°C and nights near 24°C. Pack light clothes and sun protection. Worth having: rain gear. About 8 days see rain.
Sea temperature near São Francisco de Itabapoana
Average ocean temperature at the nearest coast, month by month, banded into swim-comfort zones — the other half of the beach question.
The sea offshore is warmest in March at about 25°C and coldest in August near 23°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) | 24 | 25 | 25 | 25 | 24 | 23 | 23 | 23 | 23 | 23 | 24 | 24 |
| Comfort | Warm | Warm | Warm | Warm | Warm | Refreshing | Refreshing | Refreshing | Refreshing | Refreshing | Refreshing | Warm |
| Sea temperature (°C) | Comfort | |
|---|---|---|
| Jan | 24 | Warm |
| Feb | 25 | Warm |
| Mar | 25 | Warm |
| Apr | 25 | Warm |
| May | 24 | Warm |
| Jun | 23 | Refreshing |
| Jul | 23 | Refreshing |
| Aug | 23 | Refreshing |
| Sep | 23 | Refreshing |
| Oct | 23 | Refreshing |
| Nov | 24 | Refreshing |
| Dec | 24 | Warm |
UV index (midday) in São Francisco de Itabapoana 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 São Francisco de Itabapoana peaks around February 9 at about 14 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 20 at about 6 (high).
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 | 14 | 12 | 10 | 7 | 6 | 6 | 8 | 10 | 12 | 13 | 13 |
| Level | Extreme | Extreme | Extreme | Very high | High | High | High | Very high | Very high | Extreme | Extreme | Extreme |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 14 | Extreme |
| Feb | 14 | Extreme |
| Mar | 12 | Extreme |
| Apr | 10 | Very high |
| May | 7 | High |
| Jun | 6 | High |
| Jul | 6 | High |
| Aug | 8 | Very high |
| Sep | 10 | Very high |
| Oct | 12 | Extreme |
| Nov | 13 | Extreme |
| Dec | 13 | Extreme |
Average hourly UV index in São Francisco de Itabapoana
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 February the burn window is concentrated in the middle of the day: about 8.5 hours a day reach index 3 (protection recommended), and 6.5 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 | 7 | 6 | 5.5 | 5.5 | 6.5 | 7 | 8 | 8.5 | 8.5 |
| UV ≥ 6 (h/day) | 6.5 | 6.5 | 6 | 5 | 2.5 | 1.5 | 2 | 4 | 5 | 6 | 6.5 | 6.5 |
| UV ≥ 3 (h/day) | UV ≥ 6 (h/day) | |
|---|---|---|
| Jan | 8.5 | 6.5 |
| Feb | 8.5 | 6.5 |
| Mar | 8 | 6 |
| Apr | 7 | 5 |
| May | 6 | 2.5 |
| Jun | 5.5 | 1.5 |
| Jul | 5.5 | 2 |
| Aug | 6.5 | 4 |
| Sep | 7 | 5 |
| Oct | 8 | 6 |
| Nov | 8.5 | 6.5 |
| Dec | 8.5 | 6.5 |
Growing season
São Francisco de Itabapoana 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. São Francisco de Itabapoana banks about 4,989 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) | 480 | 442 | 483 | 439 | 403 | 362 | 358 | 361 | 372 | 410 | 417 | 463 |
| Growing degree days (°C·days) | |
|---|---|
| Jan | 480 |
| Feb | 442 |
| Mar | 483 |
| Apr | 439 |
| May | 403 |
| Jun | 362 |
| Jul | 358 |
| Aug | 361 |
| Sep | 372 |
| Oct | 410 |
| Nov | 417 |
| Dec | 463 |
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.
São Francisco de Itabapoana receives about 5.0 kWh/m² a day of solar energy on average — bright — with a clear seasonal swing between 3.6 and 6.5 kWh/m².
The brighter stretch of the year lasts 6.4 months, from around Sep 18 to Apr 1. The brightest month is February, averaging about 6.4 kWh/m² (intense).
The dimmest month is June, down near 3.6 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) | 6.4 | 6.5 | 5.5 | 4.6 | 3.9 | 3.6 | 3.7 | 4.4 | 5.0 | 5.5 | 5.5 | 6.0 |
| Level | Intense | Intense | Bright | Bright | Moderate | Moderate | Moderate | Bright | Bright | Bright | Bright | Intense |
| Solar energy (kWh/m²) | Level | |
|---|---|---|
| Jan | 6.4 | Intense |
| Feb | 6.5 | Intense |
| Mar | 5.5 | Bright |
| Apr | 4.6 | Bright |
| May | 3.9 | Moderate |
| Jun | 3.6 | Moderate |
| Jul | 3.7 | Moderate |
| Aug | 4.4 | Bright |
| Sep | 5.0 | Bright |
| Oct | 5.5 | Bright |
| Nov | 5.5 | Bright |
| Dec | 6.0 | Intense |
Where is São Francisco de Itabapoana?
São Francisco de Itabapoana sits at 21.3°S, 41.0°W, 1 m above sea level, in Brazil. The nearest listed city is Marataizes, 32 km away.
Topography around São Francisco de Itabapoana
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of São Francisco de Itabapoana.
Within 3 km, the terrain around São Francisco de Itabapoana has only modest variations in elevation — a maximum elevation change of 23 m around an average of 4 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 86 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,346 m.
The land around São Francisco de Itabapoana is covered by water (50%) and grassland (25%) within 3 km, water (51%) and grassland (26%) within 16 km, and grassland (47%) and water (31%) 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 São Francisco de Itabapoana (-21.3019°, -40.9614°, elevation 1 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. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).