Rio das Pedras climate — normals and trends
Rio das Pedras (Brazil) has a humid subtropical climate (Cfa) under the Köppen-Geiger classification. Its mean annual temperature is 21.5 °C and it receives 1,413 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 February (24.1 °C on average) and the coldest is July (17.8 °C). Rainfall peaks in January.
Rio das Pedras averages 0 frost days, 83 hot days (≥ 30 °C) and 148 rainy days per year.
Rio das Pedras has warmed by +2.4 °C between 1940 and 2025, or +0.28 °C per decade. This trend is statistically significant.
The hottest day of the period reached 40.7 °C (on 20 January 2015) and the coldest 1.9 °C (on 1 June 1979).
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
Rio das PedrasSão Paulo
- coords
- -22.84°, -47.61°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
21.5°C
Average daily high
27.2°C
Average daily low
16.9°C
Annual rainfall
1,413mm
Sunshine / day
9.8h
Mean relative humidity
74%
Average peak wind
14.0km/h
Seasonal range
6.3°C
Frost days (< 0 °C)
0 d/yr
Hot days (≥ 30 °C)
83 d/yr
Rainy days (≥ 1 mm)
148 d/yr
Annual snowfall
0.0 cm
Average feels-like high
29.3 °C
Average feels-like low
17.5 °C
Average peak gust
30.8 km/h
Tropical nights (≥ 20 °C)
79 d/yr
Solar radiation
18.1 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+2.4 °C
since 1940
+0.3 °C per decade · r² = 0.68 · 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
40.7 °C
20 January 2015
Coldest day
1.9 °C
1 June 1979
Wettest day
140 mm
7 February 1995
Windiest day
34.7 km/h
10 December 2025
Strongest gust
84.2 km/h
22 September 2025
Hottest feels-like
43.1 °C
20 January 2015
Coldest feels-like
-1.5 °C
1 June 1979
Sunniest day
13.4 h
18 December 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 | 30.5 °C | +1.6 °C | 211 mm | -26 mm |
| Feb | 31.7 °C | +2.6 °C | 110 mm | -84 mm |
| Mar | 32.1 °C | +3.5 °C | 79 mm | -73 mm |
| Apr | 28.2 °C | +1.0 °C | 126 mm | +56 mm |
| May | 26.8 °C | +1.9 °C | 12 mm | -51 mm |
| Jun | 24.6 °C | +0.6 °C | 43 mm | +1 mm |
| Jul | 24.7 °C | +0.5 °C | 7 mm | -31 mm |
| Aug | 27.5 °C | +1.1 °C | 2 mm | -32 mm |
| Sep | 30.1 °C | +2.1 °C | 17 mm | -54 mm |
| Oct | 28.4 °C | +0.2 °C | 103 mm | -35 mm |
| Nov | 29.1 °C | +0.8 °C | 93 mm | -65 mm |
| Dec | 31.1 °C | +2.6 °C | 218 mm | -2 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 Rio das Pedras?
Rio das Pedras has a humid subtropical climate (Köppen Cfa). Over 1940-2025, the average annual temperature is 21.5 °C and it receives 1,413 mm of precipitation per year.
What is the hottest day ever recorded in Rio das Pedras?
The hottest day measured in Rio das Pedras between 1940 and 2025 was 20 January 2015, reaching 40.7 °C.
What is the coldest day in Rio das Pedras?
The coldest day measured in Rio das Pedras between 1940 and 2025 was 1 June 1979, at 1.9 °C.
Does it snow in Rio das Pedras?
Almost never: Rio das Pedras sees virtually no snow, with about 0 frost days per year.
Has the climate of Rio das Pedras warmed?
Yes: Rio das Pedras warmed by +2.4 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Rio das Pedras?
The wettest day measured in Rio das Pedras between 1940 and 2025 was 7 February 1995, with 140 mm of rain in 24 hours.
What was the windiest day in Rio das Pedras?
The windiest day measured in Rio das Pedras between 1940 and 2025 was 10 December 2025, with winds reaching 34.7 km/h.
What is the warmest month in Rio das Pedras?
The warmest month in Rio das Pedras is February (24.1 °C on average); the coldest is July (17.8 °C).
How much does it rain in Rio das Pedras?
Rio das Pedras receives on average 1,413 mm of precipitation per year, spread over about 148 rainy days.
Is it sunny in Rio das Pedras?
Rio das Pedras gets on average 9.8 hours of sunshine per day, roughly 3,577 hours per year over 1940-2025.
Are there tropical nights in Rio das Pedras?
Yes: Rio das Pedras has on average 79 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Rio das Pedras?
In Rio das Pedras, between 1940 and 2025, the highest apparent temperature reached 43.1 °C on 20 January 2015, and the lowest was -1.5 °C on 1 June 1979.
Compare Rio das Pedras with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Rio das Pedras