São Luís de Montes Belos climate — normals and trends
São Luís de Montes Belos (Brazil) has a tropical savanna climate (Aw) under the Köppen-Geiger classification. Its mean annual temperature is 24.2 °C and it receives 1,341 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 (26.7 °C on average) and the coldest is June (22.4 °C). Rainfall peaks in January.
São Luís de Montes Belos averages 0 frost days, 163 hot days (≥ 30 °C) and 162 rainy days per year.
São Luís de Montes Belos has warmed by +1.5 °C between 1940 and 2025, or +0.18 °C per decade. This trend is statistically significant.
The hottest day of the period reached 41.6 °C (on 16 October 1963) and the coldest 6.4 °C (on 9 June 1985).
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 Luís de Montes BelosGoiás
- coords
- -16.52°, -50.37°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
24.2°C
Average daily high
29.7°C
Average daily low
19.7°C
Annual rainfall
1,341mm
Sunshine / day
10.3h
Mean relative humidity
68%
Average peak wind
11.4km/h
Seasonal range
4.3°C
Frost days (< 0 °C)
0 d/yr
Hot days (≥ 30 °C)
163 d/yr
Rainy days (≥ 1 mm)
162 d/yr
Annual snowfall
0.0 cm
Average feels-like high
32.4 °C
Average feels-like low
20.9 °C
Average peak gust
28.3 km/h
Tropical nights (≥ 20 °C)
191 d/yr
Solar radiation
19.1 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+1.5 °C
since 1940
+0.2 °C per decade · r² = 0.48 · 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
41.6 °C
16 October 1963
Coldest day
6.4 °C
9 June 1985
Wettest day
144 mm
21 November 1971
Windiest day
30.6 km/h
13 January 1978
Strongest gust
66.2 km/h
31 March 1997
Hottest feels-like
41.9 °C
8 October 2020
Coldest feels-like
1.4 °C
18 July 1975
Sunniest day
12.9 h
11 January 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 | 29.3 °C | +0.9 °C | 192 mm | -51 mm |
| Feb | 30.6 °C | +2.0 °C | 102 mm | -99 mm |
| Mar | 31.2 °C | +2.5 °C | 70 mm | -121 mm |
| Apr | 30.1 °C | +1.0 °C | 83 mm | -8 mm |
| May | 29.8 °C | +1.0 °C | 3 mm | -18 mm |
| Jun | 30.0 °C | +1.1 °C | 6 mm | +2 mm |
| Jul | 29.8 °C | +0.5 °C | 0 mm | -4 mm |
| Aug | 32.2 °C | +0.5 °C | 0 mm | -5 mm |
| Sep | 34.6 °C | +1.5 °C | 19 mm | -12 mm |
| Oct | 33.8 °C | +2.2 °C | 24 mm | -96 mm |
| Nov | 32.4 °C | +3.1 °C | 102 mm | -89 mm |
| Dec | 29.6 °C | +1.2 °C | 188 mm | -52 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 Luís de Montes Belos?
São Luís de Montes Belos has a tropical savanna climate (Köppen Aw). Over 1940-2025, the average annual temperature is 24.2 °C and it receives 1,341 mm of precipitation per year.
What is the hottest day ever recorded in São Luís de Montes Belos?
The hottest day measured in São Luís de Montes Belos between 1940 and 2025 was 16 October 1963, reaching 41.6 °C.
What is the coldest day in São Luís de Montes Belos?
The coldest day measured in São Luís de Montes Belos between 1940 and 2025 was 9 June 1985, at 6.4 °C.
Does it snow in São Luís de Montes Belos?
Almost never: São Luís de Montes Belos sees virtually no snow, with about 0 frost days per year.
Has the climate of São Luís de Montes Belos warmed?
Yes: São Luís de Montes Belos warmed by +1.5 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in São Luís de Montes Belos?
The wettest day measured in São Luís de Montes Belos between 1940 and 2025 was 21 November 1971, with 144 mm of rain in 24 hours.
What was the windiest day in São Luís de Montes Belos?
The windiest day measured in São Luís de Montes Belos between 1940 and 2025 was 13 January 1978, with winds reaching 30.6 km/h.
What is the warmest month in São Luís de Montes Belos?
The warmest month in São Luís de Montes Belos is September (26.7 °C on average); the coldest is June (22.4 °C).
How much does it rain in São Luís de Montes Belos?
São Luís de Montes Belos receives on average 1,341 mm of precipitation per year, spread over about 162 rainy days.
Is it sunny in São Luís de Montes Belos?
São Luís de Montes Belos gets on average 10.3 hours of sunshine per day, roughly 3,760 hours per year over 1940-2025.
Are there tropical nights in São Luís de Montes Belos?
Yes: São Luís de Montes Belos has on average 191 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in São Luís de Montes Belos?
In São Luís de Montes Belos, between 1940 and 2025, the highest apparent temperature reached 41.9 °C on 8 October 2020, and the lowest was 1.4 °C on 18 July 1975.
Compare São Luís de Montes Belos with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around São Luís de Montes Belos