Pirassununga climate — normals and trends
Pirassununga (Brazil) has a humid subtropical climate (Cfa) under the Köppen-Geiger classification. Its mean annual temperature is 21.4 °C and it receives 1,395 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 (23.6 °C on average) and the coldest is July (17.9 °C). Rainfall peaks in January.
Pirassununga averages 0 frost days, 71 hot days (≥ 30 °C) and 154 rainy days per year.
Pirassununga has warmed by +2.3 °C between 1940 and 2025, or +0.27 °C per decade. This trend is statistically significant.
The hottest day of the period reached 39.2 °C (on 17 October 2014) and the coldest 1.0 °C (on 21 July 1981).
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
PirassunungaSão Paulo
- coords
- -22.00°, -47.43°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
21.4°C
Average daily high
27.0°C
Average daily low
16.8°C
Annual rainfall
1,395mm
Sunshine / day
9.9h
Mean relative humidity
73%
Average peak wind
13.3km/h
Seasonal range
5.7°C
Frost days (< 0 °C)
0 d/yr
Hot days (≥ 30 °C)
71 d/yr
Rainy days (≥ 1 mm)
154 d/yr
Annual snowfall
0.0 cm
Average feels-like high
29.0 °C
Average feels-like low
17.3 °C
Average peak gust
30.5 km/h
Tropical nights (≥ 20 °C)
65 d/yr
Solar radiation
18.3 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+2.3 °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
39.2 °C
17 October 2014
Coldest day
1.0 °C
21 July 1981
Wettest day
124 mm
2 January 2000
Windiest day
32.6 km/h
7 June 2011
Strongest gust
74.2 km/h
22 September 2025
Hottest feels-like
42.0 °C
29 October 2007
Coldest feels-like
-2.6 °C
21 July 1981
Sunniest day
13.3 h
19 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 | 30.1 °C | +1.8 °C | 173 mm | -58 mm |
| Feb | 31.0 °C | +2.5 °C | 83 mm | -105 mm |
| Mar | 31.2 °C | +3.1 °C | 87 mm | -64 mm |
| Apr | 28.0 °C | +1.1 °C | 83 mm | +10 mm |
| May | 26.9 °C | +2.1 °C | 6 mm | -51 mm |
| Jun | 25.0 °C | +1.0 °C | 39 mm | +4 mm |
| Jul | 25.1 °C | +0.8 °C | 1 mm | -29 mm |
| Aug | 28.0 °C | +1.4 °C | 2 mm | -28 mm |
| Sep | 30.5 °C | +2.2 °C | 28 mm | -38 mm |
| Oct | 29.0 °C | +0.6 °C | 104 mm | -34 mm |
| Nov | 29.1 °C | +1.0 °C | 93 mm | -75 mm |
| Dec | 30.3 °C | +2.4 °C | 167 mm | -60 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 Pirassununga?
Pirassununga has a humid subtropical climate (Köppen Cfa). Over 1940-2025, the average annual temperature is 21.4 °C and it receives 1,395 mm of precipitation per year.
What is the hottest day ever recorded in Pirassununga?
The hottest day measured in Pirassununga between 1940 and 2025 was 17 October 2014, reaching 39.2 °C.
What is the coldest day in Pirassununga?
The coldest day measured in Pirassununga between 1940 and 2025 was 21 July 1981, at 1.0 °C.
Does it snow in Pirassununga?
Almost never: Pirassununga sees virtually no snow, with about 0 frost days per year.
Has the climate of Pirassununga warmed?
Yes: Pirassununga warmed by +2.3 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Pirassununga?
The wettest day measured in Pirassununga between 1940 and 2025 was 2 January 2000, with 124 mm of rain in 24 hours.
What was the windiest day in Pirassununga?
The windiest day measured in Pirassununga between 1940 and 2025 was 7 June 2011, with winds reaching 32.6 km/h.
What is the warmest month in Pirassununga?
The warmest month in Pirassununga is February (23.6 °C on average); the coldest is July (17.9 °C).
How much does it rain in Pirassununga?
Pirassununga receives on average 1,395 mm of precipitation per year, spread over about 154 rainy days.
Is it sunny in Pirassununga?
Pirassununga gets on average 9.9 hours of sunshine per day, roughly 3,614 hours per year over 1940-2025.
Are there tropical nights in Pirassununga?
Yes: Pirassununga has on average 65 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Pirassununga?
In Pirassununga, between 1940 and 2025, the highest apparent temperature reached 42.0 °C on 29 October 2007, and the lowest was -2.6 °C on 21 July 1981.
Compare Pirassununga with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Pirassununga