São Cristóvão climate — normals and trends
São Cristóvão (Brazil) has a tropical savanna climate (Aw) under the Köppen-Geiger classification. Its mean annual temperature is 25.1 °C and it receives 1,028 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 March (26.4 °C on average) and the coldest is August (23.3 °C). Rainfall peaks in May.
São Cristóvão averages 0 frost days, 11 hot days (≥ 30 °C) and 231 rainy days per year.
São Cristóvão has warmed by +0.9 °C between 1940 and 2025, or +0.11 °C per decade. This trend is statistically significant.
The hottest day of the period reached 33.0 °C (on 20 March 2019) and the coldest 19.2 °C (on 14 August 1981).
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 CristóvãoSergipe
- coords
- -11.01°, -37.21°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
25.1°C
Average daily high
27.2°C
Average daily low
23.3°C
Annual rainfall
1,028mm
Sunshine / day
11.2h
Mean relative humidity
80%
Average peak wind
19.8km/h
Seasonal range
3.1°C
Frost days (< 0 °C)
0 d/yr
Hot days (≥ 30 °C)
11 d/yr
Rainy days (≥ 1 mm)
231 d/yr
Annual snowfall
0.0 cm
Average feels-like high
30.5 °C
Average feels-like low
26.0 °C
Average peak gust
33.5 km/h
Tropical nights (≥ 20 °C)
364 d/yr
Solar radiation
19.9 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+0.9 °C
since 1940
+0.1 °C per decade · r² = 0.58 · 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
33.0 °C
20 March 2019
Coldest day
19.2 °C
14 August 1981
Wettest day
92 mm
16 March 1981
Windiest day
34.5 km/h
23 June 1942
Strongest gust
54.7 km/h
15 July 1988
Hottest feels-like
40.3 °C
20 March 2019
Coldest feels-like
19.7 °C
28 August 1981
Sunniest day
12.6 h
28 December 2025
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 | 29.2 °C | +0.7 °C | 88 mm | +34 mm |
| Feb | 28.8 °C | +0.2 °C | 62 mm | -1 mm |
| Mar | 28.9 °C | +0.3 °C | 66 mm | -22 mm |
| Apr | 29.9 °C | +1.9 °C | 41 mm | -82 mm |
| May | 27.1 °C | +0.2 °C | 255 mm | +99 mm |
| Jun | 25.9 °C | 0.0 °C | 254 mm | +119 mm |
| Jul | 25.5 °C | +0.4 °C | 92 mm | -32 mm |
| Aug | 25.5 °C | +0.4 °C | 123 mm | +31 mm |
| Sep | 25.7 °C | -0.1 °C | 104 mm | +37 mm |
| Oct | 26.8 °C | -0.3 °C | 74 mm | +29 mm |
| Nov | 28.4 °C | +0.5 °C | 23 mm | -18 mm |
| Dec | 28.7 °C | +0.4 °C | 15 mm | -25 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 Cristóvão?
São Cristóvão has a tropical savanna climate (Köppen Aw). Over 1940-2025, the average annual temperature is 25.1 °C and it receives 1,028 mm of precipitation per year.
What is the hottest day ever recorded in São Cristóvão?
The hottest day measured in São Cristóvão between 1940 and 2025 was 20 March 2019, reaching 33.0 °C.
What is the coldest day in São Cristóvão?
The coldest day measured in São Cristóvão between 1940 and 2025 was 14 August 1981, at 19.2 °C.
Does it snow in São Cristóvão?
Almost never: São Cristóvão sees virtually no snow, with about 0 frost days per year.
Has the climate of São Cristóvão warmed?
Yes: São Cristóvão warmed by +0.9 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in São Cristóvão?
The wettest day measured in São Cristóvão between 1940 and 2025 was 16 March 1981, with 92 mm of rain in 24 hours.
What was the windiest day in São Cristóvão?
The windiest day measured in São Cristóvão between 1940 and 2025 was 23 June 1942, with winds reaching 34.5 km/h.
What is the warmest month in São Cristóvão?
The warmest month in São Cristóvão is March (26.4 °C on average); the coldest is August (23.3 °C).
How much does it rain in São Cristóvão?
São Cristóvão receives on average 1,028 mm of precipitation per year, spread over about 231 rainy days.
Is it sunny in São Cristóvão?
São Cristóvão gets on average 11.2 hours of sunshine per day, roughly 4,088 hours per year over 1940-2025.
Are there tropical nights in São Cristóvão?
Yes: São Cristóvão has on average 364 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in São Cristóvão?
In São Cristóvão, between 1940 and 2025, the highest apparent temperature reached 40.3 °C on 20 March 2019, and the lowest was 19.7 °C on 28 August 1981.
Compare São Cristóvão with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around São Cristóvão