São Francisco de Itabapoana climate — normals and trends
São Francisco de Itabapoana (Brazil) has a tropical savanna climate (Aw) under the Köppen-Geiger classification. Its mean annual temperature is 23.3 °C and it receives 1,098 mm of precipitation per year.
These figures are normals computed over 86 complete calendar years, from 1940 to 2025, using ERA5 reanalysis data from the Copernicus programme.
The warmest month is February (25.4 °C on average) and the coldest is July (21.1 °C). Rainfall peaks in December.
São Francisco de Itabapoana averages 0 frost days, 2 hot days (≥ 30 °C) and 141 rainy days per year.
São Francisco de Itabapoana has warmed by +1.1 °C between 1940 and 2025, or +0.13 °C per decade. This trend is statistically significant.
The hottest day of the period reached 32.0 °C (on 3 April 2020) and the coldest 14.0 °C (on 1 June 1979).
Data from ERA5 reanalysis (Copernicus Climate Change Service), redistributed under a CC-BY 4.0 licence. Normals are recomputed whenever the archive is updated.
Climate normals · ERA5
São Francisco de ItabapoanaRio de Janeiro
- coords
- -21.30°, -40.96°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
23.3°C
Average daily high
25.4°C
Average daily low
21.4°C
Annual rainfall
1,098mm
Sunshine / day
9.9h
Mean relative humidity
83%
Average peak wind
20.5km/h
Seasonal range
4.3°C
Frost days (< 0 °C)
0 d/yr
Hot days (≥ 30 °C)
2 d/yr
Rainy days (≥ 1 mm)
141 d/yr
Annual snowfall
0.0 cm
Average feels-like high
28.6 °C
Average feels-like low
23.2 °C
Average peak gust
31.8 km/h
Tropical nights (≥ 20 °C)
264 d/yr
Solar radiation
18.1 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+1.1 °C
since 1940
+0.1 °C per decade · r² = 0.52 · p = < 0.001
Trend fitted by linear regression (ordinary least squares) on annual means. A trend is shown only when it is statistically significant (p < 0.05).
A climograph overlays rainfall (bars) and temperature (line): the standard reading in climatology, where you can see at a glance whether the warm season is also the dry one.
Records for the period
Hottest day
32.0 °C
3 April 2020
Coldest day
14.0 °C
1 June 1979
Wettest day
140 mm
17 December 2025
Windiest day
51.1 km/h
29 December 1990
Strongest gust
81.0 km/h
29 December 1990
Hottest feels-like
40.2 °C
24 February 2019
Coldest feels-like
10.2 °C
10 July 1994
Sunniest day
13.1 h
5 January 1947
Normals computed over complete calendar years 1940–2025.
A specific year
Pick a year and see how it compares to normal — warmer, drier or more extreme than usual?
Across the whole year
Month by month
| High | vs. normal | Precipitation | vs. normal | |
|---|---|---|---|---|
| Jan | 27.7 °C | +0.6 °C | 115 mm | -15 mm |
| Feb | 28.5 °C | +1.1 °C | 2 mm | -81 mm |
| Mar | 28.1 °C | +0.9 °C | 105 mm | -7 mm |
| Apr | 26.7 °C | +0.5 °C | 129 mm | +43 mm |
| May | 25.6 °C | +0.7 °C | 45 mm | -17 mm |
| Jun | 25.1 °C | +1.1 °C | 26 mm | -14 mm |
| Jul | 23.8 °C | +0.3 °C | 28 mm | -13 mm |
| Aug | 24.3 °C | +0.5 °C | 20 mm | -20 mm |
| Sep | 24.5 °C | +0.3 °C | 61 mm | -1 mm |
| Oct | 25.1 °C | +0.2 °C | 87 mm | -21 mm |
| Nov | 26.5 °C | +1.1 °C | 53 mm | -113 mm |
| Dec | 27.5 °C | +1.1 °C | 233 mm | +64 mm |
The year's extremes
What was the weather like that day?
Your birthday, a wedding, a memorable trip: discover the actual weather for any date since 1940.
Frequently asked questions
What is the climate of São Francisco de Itabapoana?
São Francisco de Itabapoana has a tropical savanna climate (Köppen Aw). Over 1940-2025, the average annual temperature is 23.3 °C and it receives 1,098 mm of precipitation per year.
What is the hottest day ever recorded in São Francisco de Itabapoana?
The hottest day measured in São Francisco de Itabapoana between 1940 and 2025 was 3 April 2020, reaching 32.0 °C.
What is the coldest day in São Francisco de Itabapoana?
The coldest day measured in São Francisco de Itabapoana between 1940 and 2025 was 1 June 1979, at 14.0 °C.
Does it snow in São Francisco de Itabapoana?
Almost never: São Francisco de Itabapoana sees virtually no snow, with about 0 frost days per year.
Has the climate of São Francisco de Itabapoana warmed?
Yes: São Francisco de Itabapoana warmed by +1.1 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in São Francisco de Itabapoana?
The wettest day measured in São Francisco de Itabapoana between 1940 and 2025 was 17 December 2025, with 140 mm of rain in 24 hours.
What was the windiest day in São Francisco de Itabapoana?
The windiest day measured in São Francisco de Itabapoana between 1940 and 2025 was 29 December 1990, with winds reaching 51.1 km/h.
What is the warmest month in São Francisco de Itabapoana?
The warmest month in São Francisco de Itabapoana is February (25.4 °C on average); the coldest is July (21.1 °C).
How much does it rain in São Francisco de Itabapoana?
São Francisco de Itabapoana receives on average 1,098 mm of precipitation per year, spread over about 141 rainy days.
Is it sunny in São Francisco de Itabapoana?
São Francisco de Itabapoana gets on average 9.9 hours of sunshine per day, roughly 3,614 hours per year over 1940-2025.
Are there tropical nights in São Francisco de Itabapoana?
Yes: São Francisco de Itabapoana has on average 264 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in São Francisco de Itabapoana?
In São Francisco de Itabapoana, between 1940 and 2025, the highest apparent temperature reached 40.2 °C on 24 February 2019, and the lowest was 10.2 °C on 10 July 1994.
Compare São Francisco de Itabapoana with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around São Francisco de Itabapoana