Pirajuí climate — normals and trends
Pirajuí (Brazil) has a tropical savanna climate (Aw) under the Köppen-Geiger classification. Its mean annual temperature is 22.4 °C and it receives 1,314 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 January (24.6 °C on average) and the coldest is July (18.8 °C). Rainfall peaks in January.
Pirajuí averages 0 frost days, 105 hot days (≥ 30 °C) and 143 rainy days per year.
Pirajuí has warmed by +2.1 °C between 1940 and 2025, or +0.25 °C per decade. This trend is statistically significant.
The hottest day of the period reached 40.7 °C (on 7 October 2020) and the coldest 0.9 °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
PirajuíSão Paulo
- coords
- -22.00°, -49.46°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
22.4°C
Average daily high
27.9°C
Average daily low
17.9°C
Annual rainfall
1,314mm
Sunshine / day
9.9h
Mean relative humidity
72%
Average peak wind
13.9km/h
Seasonal range
5.8°C
Frost days (< 0 °C)
0 d/yr
Hot days (≥ 30 °C)
105 d/yr
Rainy days (≥ 1 mm)
143 d/yr
Annual snowfall
0.0 cm
Average feels-like high
30.2 °C
Average feels-like low
18.5 °C
Average peak gust
31.5 km/h
Tropical nights (≥ 20 °C)
125 d/yr
Solar radiation
18.4 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+2.1 °C
since 1940
+0.3 °C per decade · r² = 0.65 · 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
7 October 2020
Coldest day
0.9 °C
21 July 1981
Wettest day
150 mm
17 February 1964
Windiest day
32.4 km/h
9 December 2025
Strongest gust
79.2 km/h
30 July 1989
Hottest feels-like
43.7 °C
29 October 2007
Coldest feels-like
-2.4 °C
21 July 1981
Sunniest day
13.2 h
10 December 2021
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 | 31.2 °C | +1.9 °C | 164 mm | -55 mm |
| Feb | 31.2 °C | +1.8 °C | 121 mm | -65 mm |
| Mar | 31.6 °C | +2.5 °C | 51 mm | -87 mm |
| Apr | 28.2 °C | +0.3 °C | 114 mm | +47 mm |
| May | 26.9 °C | +1.4 °C | 16 mm | -43 mm |
| Jun | 24.9 °C | +0.3 °C | 48 mm | +9 mm |
| Jul | 25.1 °C | +0.1 °C | 4 mm | -27 mm |
| Aug | 27.7 °C | +0.4 °C | 3 mm | -26 mm |
| Sep | 31.2 °C | +2.1 °C | 18 mm | -43 mm |
| Oct | 29.5 °C | +0.1 °C | 83 mm | -42 mm |
| Nov | 29.5 °C | +0.2 °C | 114 mm | -37 mm |
| Dec | 30.8 °C | +1.8 °C | 173 mm | -38 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 Pirajuí?
Pirajuí has a tropical savanna climate (Köppen Aw). Over 1940-2025, the average annual temperature is 22.4 °C and it receives 1,314 mm of precipitation per year.
What is the hottest day ever recorded in Pirajuí?
The hottest day measured in Pirajuí between 1940 and 2025 was 7 October 2020, reaching 40.7 °C.
What is the coldest day in Pirajuí?
The coldest day measured in Pirajuí between 1940 and 2025 was 21 July 1981, at 0.9 °C.
Does it snow in Pirajuí?
Almost never: Pirajuí sees virtually no snow, with about 0 frost days per year.
Has the climate of Pirajuí warmed?
Yes: Pirajuí warmed by +2.1 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Pirajuí?
The wettest day measured in Pirajuí between 1940 and 2025 was 17 February 1964, with 150 mm of rain in 24 hours.
What was the windiest day in Pirajuí?
The windiest day measured in Pirajuí between 1940 and 2025 was 9 December 2025, with winds reaching 32.4 km/h.
What is the warmest month in Pirajuí?
The warmest month in Pirajuí is January (24.6 °C on average); the coldest is July (18.8 °C).
How much does it rain in Pirajuí?
Pirajuí receives on average 1,314 mm of precipitation per year, spread over about 143 rainy days.
Is it sunny in Pirajuí?
Pirajuí gets on average 9.9 hours of sunshine per day, roughly 3,614 hours per year over 1940-2025.
Are there tropical nights in Pirajuí?
Yes: Pirajuí has on average 125 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Pirajuí?
In Pirajuí, between 1940 and 2025, the highest apparent temperature reached 43.7 °C on 29 October 2007, and the lowest was -2.4 °C on 21 July 1981.
Compare Pirajuí with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Pirajuí