São Miguel do Guaporé climate — normals and trends
São Miguel do Guaporé (Brazil) has a tropical savanna climate (Aw) under the Köppen-Geiger classification. Its mean annual temperature is 25.2 °C and it receives 1,649 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 (26.5 °C on average) and the coldest is May (24.2 °C). Rainfall peaks in February.
São Miguel do Guaporé averages 0 frost days, 208 hot days (≥ 30 °C) and 217 rainy days per year.
São Miguel do Guaporé has warmed by +1.0 °C between 1940 and 2025, or +0.11 °C per decade. This trend is statistically significant.
The hottest day of the period reached 41.0 °C (on 24 October 2015) and the coldest 8.9 °C (on 18 July 2017).
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 Miguel do GuaporéRondônia
- coords
- -11.69°, -62.71°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
25.2°C
Average daily high
30.4°C
Average daily low
21.7°C
Annual rainfall
1,649mm
Sunshine / day
9.7h
Mean relative humidity
82%
Average peak wind
9.1km/h
Seasonal range
2.3°C
Frost days (< 0 °C)
0 d/yr
Hot days (≥ 30 °C)
208 d/yr
Rainy days (≥ 1 mm)
217 d/yr
Annual snowfall
0.0 cm
Average feels-like high
35.3 °C
Average feels-like low
25.0 °C
Average peak gust
26.4 km/h
Tropical nights (≥ 20 °C)
312 d/yr
Solar radiation
17.9 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+1.0 °C
since 1940
+0.1 °C per decade · r² = 0.34 · 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
41.0 °C
24 October 2015
Coldest day
8.9 °C
18 July 2017
Wettest day
192 mm
9 February 2007
Windiest day
25.5 km/h
19 January 1965
Strongest gust
64.1 km/h
20 January 1965
Hottest feels-like
45.5 °C
24 October 2015
Coldest feels-like
4.9 °C
19 July 1981
Sunniest day
12.6 h
8 January 2024
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 | 30.1 °C | +0.5 °C | 243 mm | -6 mm |
| Feb | 30.3 °C | +1.1 °C | 177 mm | -72 mm |
| Mar | 29.7 °C | +0.4 °C | 264 mm | +34 mm |
| Apr | 29.8 °C | +0.7 °C | 224 mm | +71 mm |
| May | 30.4 °C | +1.4 °C | 88 mm | +14 mm |
| Jun | 30.5 °C | +0.6 °C | 12 mm | -10 mm |
| Jul | 32.1 °C | +0.7 °C | 0 mm | -14 mm |
| Aug | 33.7 °C | +0.7 °C | 6 mm | -24 mm |
| Sep | 33.7 °C | +0.9 °C | 82 mm | +7 mm |
| Oct | 32.6 °C | +0.9 °C | 76 mm | -63 mm |
| Nov | 31.9 °C | +1.5 °C | 121 mm | -66 mm |
| Dec | 29.4 °C | -0.4 °C | 347 mm | +117 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 Miguel do Guaporé?
São Miguel do Guaporé has a tropical savanna climate (Köppen Aw). Over 1940-2025, the average annual temperature is 25.2 °C and it receives 1,649 mm of precipitation per year.
What is the hottest day ever recorded in São Miguel do Guaporé?
The hottest day measured in São Miguel do Guaporé between 1940 and 2025 was 24 October 2015, reaching 41.0 °C.
What is the coldest day in São Miguel do Guaporé?
The coldest day measured in São Miguel do Guaporé between 1940 and 2025 was 18 July 2017, at 8.9 °C.
Does it snow in São Miguel do Guaporé?
Almost never: São Miguel do Guaporé sees virtually no snow, with about 0 frost days per year.
Has the climate of São Miguel do Guaporé warmed?
Yes: São Miguel do Guaporé warmed by +1.0 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in São Miguel do Guaporé?
The wettest day measured in São Miguel do Guaporé between 1940 and 2025 was 9 February 2007, with 192 mm of rain in 24 hours.
What was the windiest day in São Miguel do Guaporé?
The windiest day measured in São Miguel do Guaporé between 1940 and 2025 was 19 January 1965, with winds reaching 25.5 km/h.
What is the warmest month in São Miguel do Guaporé?
The warmest month in São Miguel do Guaporé is September (26.5 °C on average); the coldest is May (24.2 °C).
How much does it rain in São Miguel do Guaporé?
São Miguel do Guaporé receives on average 1,649 mm of precipitation per year, spread over about 217 rainy days.
Is it sunny in São Miguel do Guaporé?
São Miguel do Guaporé gets on average 9.7 hours of sunshine per day, roughly 3,540 hours per year over 1940-2025.
Are there tropical nights in São Miguel do Guaporé?
Yes: São Miguel do Guaporé has on average 312 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in São Miguel do Guaporé?
In São Miguel do Guaporé, between 1940 and 2025, the highest apparent temperature reached 45.5 °C on 24 October 2015, and the lowest was 4.9 °C on 19 July 1981.
Compare São Miguel do Guaporé with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around São Miguel do Guaporé