Rolim de Moura do Guaporé climate — normals and trends
Rolim de Moura do Guaporé (Brazil) has a tropical savanna climate (Aw) under the Köppen-Geiger classification. Its mean annual temperature is 25.4 °C and it receives 1,747 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 (26.8 °C on average) and the coldest is June (23.8 °C). Rainfall peaks in January.
Rolim de Moura do Guaporé averages 0 frost days, 229 hot days (≥ 30 °C) and 206 rainy days per year.
Rolim de Moura do Guaporé 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 41.5 °C (on 18 October 1963) and the coldest 8.0 °C (on 20 July 1975).
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
Rolim de Moura do GuaporéRondônia
- coords
- -13.08°, -62.28°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
25.4°C
Average daily high
30.7°C
Average daily low
21.7°C
Annual rainfall
1,747mm
Sunshine / day
9.7h
Mean relative humidity
81%
Average peak wind
9.5km/h
Seasonal range
3.0°C
Frost days (< 0 °C)
0 d/yr
Hot days (≥ 30 °C)
229 d/yr
Rainy days (≥ 1 mm)
206 d/yr
Annual snowfall
0.0 cm
Average feels-like high
35.7 °C
Average feels-like low
24.9 °C
Average peak gust
27.7 km/h
Tropical nights (≥ 20 °C)
297 d/yr
Solar radiation
18.0 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+0.8 °C
since 1940
+0.1 °C per decade · r² = 0.26 · 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
41.5 °C
18 October 1963
Coldest day
8.0 °C
20 July 1975
Wettest day
206 mm
21 January 1965
Windiest day
31.8 km/h
21 January 1965
Strongest gust
87.1 km/h
21 January 1965
Hottest feels-like
45.9 °C
24 October 2015
Coldest feels-like
4.1 °C
18 July 1975
Sunniest day
12.7 h
19 January 1942
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 | 30.8 °C | +0.6 °C | 291 mm | +5 mm |
| Feb | 31.0 °C | +1.1 °C | 155 mm | -115 mm |
| Mar | 30.4 °C | +0.5 °C | 245 mm | -0 mm |
| Apr | 29.9 °C | +0.2 °C | 214 mm | +71 mm |
| May | 30.5 °C | +1.4 °C | 79 mm | +7 mm |
| Jun | 29.9 °C | +0.3 °C | 12 mm | -12 mm |
| Jul | 31.0 °C | +0.2 °C | 0 mm | -14 mm |
| Aug | 32.9 °C | +0.3 °C | 8 mm | -18 mm |
| Sep | 34.5 °C | +1.4 °C | 54 mm | -15 mm |
| Oct | 32.9 °C | +0.7 °C | 103 mm | -42 mm |
| Nov | 31.5 °C | +0.6 °C | 192 mm | -7 mm |
| Dec | 29.9 °C | -0.4 °C | 386 mm | +131 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 Rolim de Moura do Guaporé?
Rolim de Moura do Guaporé has a tropical savanna climate (Köppen Aw). Over 1940-2025, the average annual temperature is 25.4 °C and it receives 1,747 mm of precipitation per year.
What is the hottest day ever recorded in Rolim de Moura do Guaporé?
The hottest day measured in Rolim de Moura do Guaporé between 1940 and 2025 was 18 October 1963, reaching 41.5 °C.
What is the coldest day in Rolim de Moura do Guaporé?
The coldest day measured in Rolim de Moura do Guaporé between 1940 and 2025 was 20 July 1975, at 8.0 °C.
Does it snow in Rolim de Moura do Guaporé?
Almost never: Rolim de Moura do Guaporé sees virtually no snow, with about 0 frost days per year.
Has the climate of Rolim de Moura do Guaporé warmed?
Yes: Rolim de Moura do Guaporé warmed by +0.8 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Rolim de Moura do Guaporé?
The wettest day measured in Rolim de Moura do Guaporé between 1940 and 2025 was 21 January 1965, with 206 mm of rain in 24 hours.
What was the windiest day in Rolim de Moura do Guaporé?
The windiest day measured in Rolim de Moura do Guaporé between 1940 and 2025 was 21 January 1965, with winds reaching 31.8 km/h.
What is the warmest month in Rolim de Moura do Guaporé?
The warmest month in Rolim de Moura do Guaporé is September (26.8 °C on average); the coldest is June (23.8 °C).
How much does it rain in Rolim de Moura do Guaporé?
Rolim de Moura do Guaporé receives on average 1,747 mm of precipitation per year, spread over about 206 rainy days.
Is it sunny in Rolim de Moura do Guaporé?
Rolim de Moura 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 Rolim de Moura do Guaporé?
Yes: Rolim de Moura do Guaporé has on average 297 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Rolim de Moura do Guaporé?
In Rolim de Moura do Guaporé, between 1940 and 2025, the highest apparent temperature reached 45.9 °C on 24 October 2015, and the lowest was 4.1 °C on 18 July 1975.
Compare Rolim de Moura do Guaporé with another city
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Nearby cities
The climate around Rolim de Moura do Guaporé