Bom Jesus das Selvas climate — normals and trends
Bom Jesus das Selvas (Brazil) has a tropical savanna climate (Aw) under the Köppen-Geiger classification. Its mean annual temperature is 26.4 °C and it receives 1,162 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 October (28.3 °C on average) and the coldest is March (25.0 °C). Rainfall peaks in March.
Bom Jesus das Selvas averages 0 frost days, 257 hot days (≥ 30 °C) and 164 rainy days per year.
Bom Jesus das Selvas 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 38.5 °C (on 18 October 1941) and the coldest 16.6 °C (on 28 July 2020).
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
Bom Jesus das SelvasMaranhão
- coords
- -4.48°, -46.85°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
26.4°C
Average daily high
31.5°C
Average daily low
22.3°C
Annual rainfall
1,162mm
Sunshine / day
10.2h
Mean relative humidity
75%
Average peak wind
11.6km/h
Seasonal range
3.3°C
Frost days (< 0 °C)
0 d/yr
Hot days (≥ 30 °C)
257 d/yr
Rainy days (≥ 1 mm)
164 d/yr
Annual snowfall
0.0 cm
Average feels-like high
35.7 °C
Average feels-like low
25.6 °C
Average peak gust
32.0 km/h
Tropical nights (≥ 20 °C)
356 d/yr
Solar radiation
18.6 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+0.8 °C
since 1940
+0.1 °C per decade · r² = 0.15 · 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
18 October 1941
Coldest day
16.6 °C
28 July 2020
Wettest day
189 mm
22 January 1998
Windiest day
23.7 km/h
4 October 2013
Strongest gust
56.2 km/h
9 September 2017
Hottest feels-like
43.3 °C
20 October 2018
Coldest feels-like
17.2 °C
3 August 1962
Sunniest day
12.0 h
27 January 1945
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 | 30.2 °C | +0.3 °C | 310 mm | +113 mm |
| Feb | 30.1 °C | +0.6 °C | 197 mm | -20 mm |
| Mar | 30.5 °C | +1.3 °C | 229 mm | -8 mm |
| Apr | 31.0 °C | +1.6 °C | 95 mm | -82 mm |
| May | 31.6 °C | +1.6 °C | 31 mm | -57 mm |
| Jun | 31.5 °C | +0.7 °C | 27 mm | +5 mm |
| Jul | 33.0 °C | +0.8 °C | 6 mm | -3 mm |
| Aug | 33.2 °C | -0.5 °C | 13 mm | +7 mm |
| Sep | 34.9 °C | +0.7 °C | 3 mm | -8 mm |
| Oct | 34.5 °C | +0.4 °C | 15 mm | -10 mm |
| Nov | 33.6 °C | +0.3 °C | 24 mm | -31 mm |
| Dec | 31.8 °C | +0.1 °C | 111 mm | -6 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 Bom Jesus das Selvas?
Bom Jesus das Selvas has a tropical savanna climate (Köppen Aw). Over 1940-2025, the average annual temperature is 26.4 °C and it receives 1,162 mm of precipitation per year.
What is the hottest day ever recorded in Bom Jesus das Selvas?
The hottest day measured in Bom Jesus das Selvas between 1940 and 2025 was 18 October 1941, reaching 38.5 °C.
What is the coldest day in Bom Jesus das Selvas?
The coldest day measured in Bom Jesus das Selvas between 1940 and 2025 was 28 July 2020, at 16.6 °C.
Does it snow in Bom Jesus das Selvas?
Almost never: Bom Jesus das Selvas sees virtually no snow, with about 0 frost days per year.
Has the climate of Bom Jesus das Selvas warmed?
Yes: Bom Jesus das Selvas warmed by +0.8 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Bom Jesus das Selvas?
The wettest day measured in Bom Jesus das Selvas between 1940 and 2025 was 22 January 1998, with 189 mm of rain in 24 hours.
What was the windiest day in Bom Jesus das Selvas?
The windiest day measured in Bom Jesus das Selvas between 1940 and 2025 was 4 October 2013, with winds reaching 23.7 km/h.
What is the warmest month in Bom Jesus das Selvas?
The warmest month in Bom Jesus das Selvas is October (28.3 °C on average); the coldest is March (25.0 °C).
How much does it rain in Bom Jesus das Selvas?
Bom Jesus das Selvas receives on average 1,162 mm of precipitation per year, spread over about 164 rainy days.
Is it sunny in Bom Jesus das Selvas?
Bom Jesus das Selvas gets on average 10.2 hours of sunshine per day, roughly 3,723 hours per year over 1940-2025.
Are there tropical nights in Bom Jesus das Selvas?
Yes: Bom Jesus das Selvas has on average 356 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Bom Jesus das Selvas?
In Bom Jesus das Selvas, between 1940 and 2025, the highest apparent temperature reached 43.3 °C on 20 October 2018, and the lowest was 17.2 °C on 3 August 1962.
Compare Bom Jesus das Selvas with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Bom Jesus das Selvas