São Francisco do Guaporé climate — normals and trends
São Francisco 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 1,659 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 June (23.9 °C). Rainfall peaks in February.
São Francisco do Guaporé averages 0 frost days, 207 hot days (≥ 30 °C) and 216 rainy days per year.
São Francisco do Guaporé has warmed by +0.9 °C between 1940 and 2025, or +0.11 °C per decade. This trend is statistically significant.
The hottest day of the period reached 40.8 °C (on 18 October 1963) and the coldest 8.4 °C (on 19 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
São Francisco do GuaporéRondônia
- coords
- -12.05°, -63.57°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
25.2°C
Average daily high
30.4°C
Average daily low
21.6°C
Annual rainfall
1,659mm
Sunshine / day
9.6h
Mean relative humidity
82%
Average peak wind
9.0km/h
Seasonal range
2.6°C
Frost days (< 0 °C)
0 d/yr
Hot days (≥ 30 °C)
207 d/yr
Rainy days (≥ 1 mm)
216 d/yr
Annual snowfall
0.0 cm
Average feels-like high
35.4 °C
Average feels-like low
25.0 °C
Average peak gust
26.9 km/h
Tropical nights (≥ 20 °C)
308 d/yr
Solar radiation
17.9 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+0.9 °C
since 1940
+0.1 °C per decade · r² = 0.31 · 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
40.8 °C
18 October 1963
Coldest day
8.4 °C
19 July 1975
Wettest day
161 mm
21 February 1965
Windiest day
26.3 km/h
17 July 1975
Strongest gust
68.0 km/h
17 December 1989
Hottest feels-like
46.8 °C
24 October 2015
Coldest feels-like
4.7 °C
18 July 1975
Sunniest day
12.7 h
11 January 1943
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 | 30.3 °C | +0.6 °C | 295 mm | +49 mm |
| Feb | 30.5 °C | +1.2 °C | 187 mm | -66 mm |
| Mar | 29.7 °C | +0.3 °C | 245 mm | +10 mm |
| Apr | 29.6 °C | +0.5 °C | 210 mm | +62 mm |
| May | 30.3 °C | +1.5 °C | 88 mm | +12 mm |
| Jun | 30.0 °C | +0.5 °C | 10 mm | -16 mm |
| Jul | 31.7 °C | +0.8 °C | 1 mm | -16 mm |
| Aug | 33.3 °C | +0.7 °C | 9 mm | -23 mm |
| Sep | 34.1 °C | +1.4 °C | 50 mm | -23 mm |
| Oct | 32.7 °C | +0.8 °C | 88 mm | -51 mm |
| Nov | 31.8 °C | +1.2 °C | 149 mm | -35 mm |
| Dec | 29.5 °C | -0.4 °C | 362 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 São Francisco do Guaporé?
São Francisco do Guaporé has a tropical savanna climate (Köppen Aw). Over 1940-2025, the average annual temperature is 25.2 °C and it receives 1,659 mm of precipitation per year.
What is the hottest day ever recorded in São Francisco do Guaporé?
The hottest day measured in São Francisco do Guaporé between 1940 and 2025 was 18 October 1963, reaching 40.8 °C.
What is the coldest day in São Francisco do Guaporé?
The coldest day measured in São Francisco do Guaporé between 1940 and 2025 was 19 July 1975, at 8.4 °C.
Does it snow in São Francisco do Guaporé?
Almost never: São Francisco do Guaporé sees virtually no snow, with about 0 frost days per year.
Has the climate of São Francisco do Guaporé warmed?
Yes: São Francisco do Guaporé warmed by +0.9 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in São Francisco do Guaporé?
The wettest day measured in São Francisco do Guaporé between 1940 and 2025 was 21 February 1965, with 161 mm of rain in 24 hours.
What was the windiest day in São Francisco do Guaporé?
The windiest day measured in São Francisco do Guaporé between 1940 and 2025 was 17 July 1975, with winds reaching 26.3 km/h.
What is the warmest month in São Francisco do Guaporé?
The warmest month in São Francisco do Guaporé is September (26.5 °C on average); the coldest is June (23.9 °C).
How much does it rain in São Francisco do Guaporé?
São Francisco do Guaporé receives on average 1,659 mm of precipitation per year, spread over about 216 rainy days.
Is it sunny in São Francisco do Guaporé?
São Francisco do Guaporé gets on average 9.6 hours of sunshine per day, roughly 3,504 hours per year over 1940-2025.
Are there tropical nights in São Francisco do Guaporé?
Yes: São Francisco do Guaporé has on average 308 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in São Francisco do Guaporé?
In São Francisco do Guaporé, between 1940 and 2025, the highest apparent temperature reached 46.8 °C on 24 October 2015, and the lowest was 4.7 °C on 18 July 1975.
Compare São Francisco 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 Francisco do Guaporé