Catu climate — normals and trends
Catu (Brazil) has a tropical savanna climate (Aw) under the Köppen-Geiger classification. Its mean annual temperature is 24.6 °C and it receives 768 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 January (26.4 °C on average) and the coldest is July (22.0 °C). Rainfall peaks in May.
Catu averages 0 frost days, 148 hot days (≥ 30 °C) and 186 rainy days per year.
Catu has warmed by +1.4 °C between 1940 and 2025, or +0.16 °C per decade. This trend is statistically significant.
The hottest day of the period reached 39.6 °C (on 23 October 1954) and the coldest 13.9 °C (on 2 September 2006).
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
CatuEstado de Bahia
- coords
- -12.35°, -38.38°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
24.6°C
Average daily high
29.2°C
Average daily low
21.1°C
Annual rainfall
768mm
Sunshine / day
10.7h
Mean relative humidity
79%
Average peak wind
15.6km/h
Seasonal range
4.4°C
Frost days (< 0 °C)
0 d/yr
Hot days (≥ 30 °C)
148 d/yr
Rainy days (≥ 1 mm)
186 d/yr
Annual snowfall
0.0 cm
Average feels-like high
32.3 °C
Average feels-like low
23.9 °C
Average peak gust
33.9 km/h
Tropical nights (≥ 20 °C)
265 d/yr
Solar radiation
18.3 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+1.4 °C
since 1940
+0.2 °C per decade · r² = 0.44 · 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
39.6 °C
23 October 1954
Coldest day
13.9 °C
2 September 2006
Wettest day
113 mm
7 October 1970
Windiest day
28.5 km/h
15 August 1991
Strongest gust
59.8 km/h
15 August 1991
Hottest feels-like
44.2 °C
19 March 2019
Coldest feels-like
13.8 °C
2 September 2006
Sunniest day
12.7 h
27 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 | 31.9 °C | +0.2 °C | 164 mm | +107 mm |
| Feb | 30.9 °C | -0.6 °C | 59 mm | +0 mm |
| Mar | 31.5 °C | +0.3 °C | 66 mm | -13 mm |
| Apr | 31.7 °C | +2.2 °C | 61 mm | -28 mm |
| May | 27.2 °C | -0.5 °C | 199 mm | +107 mm |
| Jun | 26.7 °C | +0.3 °C | 85 mm | +9 mm |
| Jul | 25.5 °C | -0.2 °C | 94 mm | +24 mm |
| Aug | 26.7 °C | +0.5 °C | 53 mm | +0 mm |
| Sep | 27.2 °C | -0.7 °C | 46 mm | +8 mm |
| Oct | 28.5 °C | -1.6 °C | 127 mm | +84 mm |
| Nov | 30.1 °C | -1.0 °C | 116 mm | +57 mm |
| Dec | 31.4 °C | -0.1 °C | 10 mm | -44 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 Catu?
Catu has a tropical savanna climate (Köppen Aw). Over 1940-2025, the average annual temperature is 24.6 °C and it receives 768 mm of precipitation per year.
What is the hottest day ever recorded in Catu?
The hottest day measured in Catu between 1940 and 2025 was 23 October 1954, reaching 39.6 °C.
What is the coldest day in Catu?
The coldest day measured in Catu between 1940 and 2025 was 2 September 2006, at 13.9 °C.
Does it snow in Catu?
Almost never: Catu sees virtually no snow, with about 0 frost days per year.
Has the climate of Catu warmed?
Yes: Catu warmed by +1.4 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Catu?
The wettest day measured in Catu between 1940 and 2025 was 7 October 1970, with 113 mm of rain in 24 hours.
What was the windiest day in Catu?
The windiest day measured in Catu between 1940 and 2025 was 15 August 1991, with winds reaching 28.5 km/h.
What is the warmest month in Catu?
The warmest month in Catu is January (26.4 °C on average); the coldest is July (22.0 °C).
How much does it rain in Catu?
Catu receives on average 768 mm of precipitation per year, spread over about 186 rainy days.
Is it sunny in Catu?
Catu gets on average 10.7 hours of sunshine per day, roughly 3,905 hours per year over 1940-2025.
Are there tropical nights in Catu?
Yes: Catu has on average 265 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Catu?
In Catu, between 1940 and 2025, the highest apparent temperature reached 44.2 °C on 19 March 2019, and the lowest was 13.8 °C on 2 September 2006.
Compare Catu with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Catu