Água Boa climate — normals and trends
Água Boa (Brazil) has a tropical savanna climate (Aw) under the Köppen-Geiger classification. Its mean annual temperature is 25.8 °C and it receives 1,497 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 September (28.4 °C on average) and the coldest is June (24.5 °C). Rainfall peaks in January.
Água Boa averages 0 frost days, 244 hot days (≥ 30 °C) and 172 rainy days per year.
Água Boa has warmed by +0.8 °C between 1940 and 2025, or +0.10 °C per decade. This trend is statistically significant.
The hottest day of the period reached 41.9 °C (on 15 October 1963) and the coldest 9.3 °C (on 20 May 2022).
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
Água BoaMato Grosso
- coords
- -14.05°, -52.16°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
25.8°C
Average daily high
31.2°C
Average daily low
21.5°C
Annual rainfall
1,497mm
Sunshine / day
10.2h
Mean relative humidity
70%
Average peak wind
10.3km/h
Seasonal range
3.9°C
Frost days (< 0 °C)
0 d/yr
Hot days (≥ 30 °C)
244 d/yr
Rainy days (≥ 1 mm)
172 d/yr
Annual snowfall
0.0 cm
Average feels-like high
35.1 °C
Average feels-like low
23.8 °C
Average peak gust
26.2 km/h
Tropical nights (≥ 20 °C)
302 d/yr
Solar radiation
18.9 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+0.8 °C
since 1940
+0.1 °C per decade · r² = 0.21 · 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
41.9 °C
15 October 1963
Coldest day
9.3 °C
20 May 2022
Wettest day
165 mm
17 January 1965
Windiest day
32.1 km/h
28 January 1965
Strongest gust
77.0 km/h
28 January 1965
Hottest feels-like
45.1 °C
16 October 2017
Coldest feels-like
7.1 °C
19 May 2022
Sunniest day
12.8 h
30 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 | 29.5 °C | -0.1 °C | 304 mm | +39 mm |
| Feb | 30.6 °C | +1.0 °C | 170 mm | -58 mm |
| Mar | 31.4 °C | +1.6 °C | 111 mm | -111 mm |
| Apr | 31.3 °C | +1.1 °C | 111 mm | -11 mm |
| May | 31.3 °C | +0.7 °C | 10 mm | -18 mm |
| Jun | 31.8 °C | +0.8 °C | 0 mm | -2 mm |
| Jul | 31.9 °C | +0.4 °C | 0 mm | -2 mm |
| Aug | 34.4 °C | +0.7 °C | 0 mm | -5 mm |
| Sep | 36.1 °C | +1.3 °C | 12 mm | -22 mm |
| Oct | 35.3 °C | +2.5 °C | 27 mm | -107 mm |
| Nov | 32.2 °C | +1.6 °C | 130 mm | -76 mm |
| Dec | 30.1 °C | +0.3 °C | 213 mm | -37 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 Água Boa?
Água Boa has a tropical savanna climate (Köppen Aw). Over 1940-2025, the average annual temperature is 25.8 °C and it receives 1,497 mm of precipitation per year.
What is the hottest day ever recorded in Água Boa?
The hottest day measured in Água Boa between 1940 and 2025 was 15 October 1963, reaching 41.9 °C.
What is the coldest day in Água Boa?
The coldest day measured in Água Boa between 1940 and 2025 was 20 May 2022, at 9.3 °C.
Does it snow in Água Boa?
Almost never: Água Boa sees virtually no snow, with about 0 frost days per year.
Has the climate of Água Boa warmed?
Yes: Água Boa warmed by +0.8 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Água Boa?
The wettest day measured in Água Boa between 1940 and 2025 was 17 January 1965, with 165 mm of rain in 24 hours.
What was the windiest day in Água Boa?
The windiest day measured in Água Boa between 1940 and 2025 was 28 January 1965, with winds reaching 32.1 km/h.
What is the warmest month in Água Boa?
The warmest month in Água Boa is September (28.4 °C on average); the coldest is June (24.5 °C).
How much does it rain in Água Boa?
Água Boa receives on average 1,497 mm of precipitation per year, spread over about 172 rainy days.
Is it sunny in Água Boa?
Água Boa gets on average 10.2 hours of sunshine per day, roughly 3,723 hours per year over 1940-2025.
Are there tropical nights in Água Boa?
Yes: Água Boa has on average 302 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Água Boa?
In Água Boa, between 1940 and 2025, the highest apparent temperature reached 45.1 °C on 16 October 2017, and the lowest was 7.1 °C on 19 May 2022.
Compare Água Boa with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Água Boa