São Caitano climate — normals and trends
São Caitano (Brazil) has a hot semi-arid climate (BSh) under the Köppen-Geiger classification. Its mean annual temperature is 23.3 °C and it receives 339 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 December (24.6 °C on average) and the coldest is July (21.1 °C). Rainfall peaks in March.
São Caitano averages 0 frost days, 127 hot days (≥ 30 °C) and 97 rainy days per year.
São Caitano has warmed by +0.8 °C between 1940 and 2025, or +0.09 °C per decade. This trend is statistically significant.
The hottest day of the period reached 35.1 °C (on 6 March 2008) and the coldest 12.4 °C (on 1 August 1986).
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 CaitanoPernambuco
- coords
- -8.33°, -36.14°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
23.3°C
Average daily high
28.7°C
Average daily low
19.4°C
Annual rainfall
339mm
Sunshine / day
10.6h
Mean relative humidity
74%
Average peak wind
17.1km/h
Seasonal range
3.5°C
Frost days (< 0 °C)
0 d/yr
Hot days (≥ 30 °C)
127 d/yr
Rainy days (≥ 1 mm)
97 d/yr
Annual snowfall
0.0 cm
Average feels-like high
30.0 °C
Average feels-like low
21.2 °C
Average peak gust
38.9 km/h
Tropical nights (≥ 20 °C)
140 d/yr
Solar radiation
19.7 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+0.8 °C
since 1940
+0.1 °C per decade · r² = 0.42 · 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
35.1 °C
6 March 2008
Coldest day
12.4 °C
1 August 1986
Wettest day
104 mm
22 January 2004
Windiest day
30.6 km/h
4 July 2017
Strongest gust
61.2 km/h
19 July 1985
Hottest feels-like
38.6 °C
13 February 2007
Coldest feels-like
12.4 °C
1 August 1986
Sunniest day
12.5 h
4 January 1940
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 | 30.6 °C | +0.2 °C | 72 mm | +38 mm |
| Feb | 29.3 °C | -0.9 °C | 33 mm | -7 mm |
| Mar | 30.1 °C | +0.2 °C | 31 mm | -32 mm |
| Apr | 30.5 °C | +1.5 °C | 45 mm | -5 mm |
| May | 28.0 °C | +0.3 °C | 44 mm | +9 mm |
| Jun | 26.1 °C | -0.1 °C | 34 mm | +4 mm |
| Jul | 25.5 °C | 0.0 °C | 21 mm | -1 mm |
| Aug | 25.9 °C | -0.3 °C | 38 mm | +23 mm |
| Sep | 26.6 °C | -1.3 °C | 23 mm | +11 mm |
| Oct | 28.7 °C | -1.1 °C | 11 mm | +2 mm |
| Nov | 31.2 °C | +0.5 °C | 3 mm | -8 mm |
| Dec | 31.3 °C | +0.6 °C | 6 mm | -12 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 Caitano?
São Caitano has a hot semi-arid climate (Köppen BSh). Over 1940-2025, the average annual temperature is 23.3 °C and it receives 339 mm of precipitation per year.
What is the hottest day ever recorded in São Caitano?
The hottest day measured in São Caitano between 1940 and 2025 was 6 March 2008, reaching 35.1 °C.
What is the coldest day in São Caitano?
The coldest day measured in São Caitano between 1940 and 2025 was 1 August 1986, at 12.4 °C.
Does it snow in São Caitano?
Almost never: São Caitano sees virtually no snow, with about 0 frost days per year.
Has the climate of São Caitano warmed?
Yes: São Caitano warmed by +0.8 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in São Caitano?
The wettest day measured in São Caitano between 1940 and 2025 was 22 January 2004, with 104 mm of rain in 24 hours.
What was the windiest day in São Caitano?
The windiest day measured in São Caitano between 1940 and 2025 was 4 July 2017, with winds reaching 30.6 km/h.
What is the warmest month in São Caitano?
The warmest month in São Caitano is December (24.6 °C on average); the coldest is July (21.1 °C).
How much does it rain in São Caitano?
São Caitano receives on average 339 mm of precipitation per year, spread over about 97 rainy days.
Is it sunny in São Caitano?
São Caitano gets on average 10.6 hours of sunshine per day, roughly 3,869 hours per year over 1940-2025.
Are there tropical nights in São Caitano?
Yes: São Caitano has on average 140 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in São Caitano?
In São Caitano, between 1940 and 2025, the highest apparent temperature reached 38.6 °C on 13 February 2007, and the lowest was 12.4 °C on 1 August 1986.
Compare São Caitano with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around São Caitano