Santo Amaro climate — normals and trends
Santo Amaro (Brazil) has a tropical savanna climate (Aw) under the Köppen-Geiger classification. Its mean annual temperature is 24.6 °C and it receives 954 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 (26.3 °C on average) and the coldest is July (22.0 °C). Rainfall peaks in May.
Santo Amaro averages 0 frost days, 127 hot days (≥ 30 °C) and 211 rainy days per year.
Santo Amaro has warmed by +1.3 °C between 1940 and 2025, or +0.15 °C per decade. This trend is statistically significant.
The hottest day of the period reached 38.5 °C (on 14 December 1953) and the coldest 13.8 °C (on 28 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
Santo AmaroEstado de Bahia
- coords
- -12.55°, -38.71°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
24.6°C
Average daily high
28.7°C
Average daily low
21.2°C
Annual rainfall
954mm
Sunshine / day
10.8h
Mean relative humidity
81%
Average peak wind
15.6km/h
Seasonal range
4.3°C
Frost days (< 0 °C)
0 d/yr
Hot days (≥ 30 °C)
127 d/yr
Rainy days (≥ 1 mm)
211 d/yr
Annual snowfall
0.0 cm
Average feels-like high
32.4 °C
Average feels-like low
24.1 °C
Average peak gust
34.2 km/h
Tropical nights (≥ 20 °C)
274 d/yr
Solar radiation
18.8 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+1.3 °C
since 1940
+0.2 °C per decade · r² = 0.43 · 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
38.5 °C
14 December 1953
Coldest day
13.8 °C
28 August 1981
Wettest day
113 mm
7 October 1970
Windiest day
29.0 km/h
14 July 1988
Strongest gust
59.4 km/h
15 August 1991
Hottest feels-like
43.8 °C
19 December 1994
Coldest feels-like
14.0 °C
15 September 1951
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 | 31.4 °C | +0.2 °C | 178 mm | +109 mm |
| Feb | 29.9 °C | -1.1 °C | 74 mm | +7 mm |
| Mar | 30.4 °C | -0.3 °C | 68 mm | -18 mm |
| Apr | 30.6 °C | +1.5 °C | 63 mm | -40 mm |
| May | 26.9 °C | -0.4 °C | 245 mm | +131 mm |
| Jun | 26.6 °C | +0.6 °C | 129 mm | +25 mm |
| Jul | 25.2 °C | -0.2 °C | 116 mm | +22 mm |
| Aug | 26.3 °C | +0.5 °C | 81 mm | +7 mm |
| Sep | 26.7 °C | -0.6 °C | 72 mm | +17 mm |
| Oct | 27.8 °C | -1.6 °C | 133 mm | +79 mm |
| Nov | 29.6 °C | -1.0 °C | 139 mm | +68 mm |
| Dec | 31.1 °C | +0.1 °C | 18 mm | -45 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 Santo Amaro?
Santo Amaro has a tropical savanna climate (Köppen Aw). Over 1940-2025, the average annual temperature is 24.6 °C and it receives 954 mm of precipitation per year.
What is the hottest day ever recorded in Santo Amaro?
The hottest day measured in Santo Amaro between 1940 and 2025 was 14 December 1953, reaching 38.5 °C.
What is the coldest day in Santo Amaro?
The coldest day measured in Santo Amaro between 1940 and 2025 was 28 August 1981, at 13.8 °C.
Does it snow in Santo Amaro?
Almost never: Santo Amaro sees virtually no snow, with about 0 frost days per year.
Has the climate of Santo Amaro warmed?
Yes: Santo Amaro warmed by +1.3 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Santo Amaro?
The wettest day measured in Santo Amaro between 1940 and 2025 was 7 October 1970, with 113 mm of rain in 24 hours.
What was the windiest day in Santo Amaro?
The windiest day measured in Santo Amaro between 1940 and 2025 was 14 July 1988, with winds reaching 29.0 km/h.
What is the warmest month in Santo Amaro?
The warmest month in Santo Amaro is January (26.3 °C on average); the coldest is July (22.0 °C).
How much does it rain in Santo Amaro?
Santo Amaro receives on average 954 mm of precipitation per year, spread over about 211 rainy days.
Is it sunny in Santo Amaro?
Santo Amaro gets on average 10.8 hours of sunshine per day, roughly 3,942 hours per year over 1940-2025.
Are there tropical nights in Santo Amaro?
Yes: Santo Amaro has on average 274 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Santo Amaro?
In Santo Amaro, between 1940 and 2025, the highest apparent temperature reached 43.8 °C on 19 December 1994, and the lowest was 14.0 °C on 15 September 1951.
Compare Santo Amaro with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Santo Amaro