Itaperuna climate — normals and trends
Itaperuna (Brazil) has a tropical savanna climate (Aw) under the Köppen-Geiger classification. Its mean annual temperature is 22.9 °C and it receives 1,291 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 (25.7 °C on average) and the coldest is July (19.5 °C). Rainfall peaks in December.
Itaperuna averages 0 frost days, 116 hot days (≥ 30 °C) and 137 rainy days per year.
Itaperuna has warmed by +2.0 °C between 1940 and 2025, or +0.23 °C per decade. This trend is statistically significant.
The hottest day of the period reached 39.3 °C (on 18 November 2023) and the coldest 6.9 °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
ItaperunaRio de Janeiro
- coords
- -21.20°, -41.89°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
22.9°C
Average daily high
28.0°C
Average daily low
18.8°C
Annual rainfall
1,291mm
Sunshine / day
9.4h
Mean relative humidity
79%
Average peak wind
10.4km/h
Seasonal range
6.2°C
Frost days (< 0 °C)
0 d/yr
Hot days (≥ 30 °C)
116 d/yr
Rainy days (≥ 1 mm)
137 d/yr
Annual snowfall
0.0 cm
Average feels-like high
31.4 °C
Average feels-like low
20.9 °C
Average peak gust
25.3 km/h
Tropical nights (≥ 20 °C)
151 d/yr
Solar radiation
17.0 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+2.0 °C
since 1940
+0.2 °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
39.3 °C
18 November 2023
Coldest day
6.9 °C
1 June 1979
Wettest day
144 mm
14 December 1987
Windiest day
24.8 km/h
9 October 2024
Strongest gust
62.6 km/h
10 December 2025
Hottest feels-like
45.6 °C
18 November 2023
Coldest feels-like
4.4 °C
1 June 1979
Sunniest day
13.2 h
10 January 1954
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 | 31.4 °C | +0.9 °C | 134 mm | -69 mm |
| Feb | 34.0 °C | +3.2 °C | 7 mm | -133 mm |
| Mar | 31.6 °C | +1.7 °C | 151 mm | +2 mm |
| Apr | 28.4 °C | +0.3 °C | 102 mm | +25 mm |
| May | 27.1 °C | +0.8 °C | 12 mm | -30 mm |
| Jun | 27.1 °C | +1.7 °C | 13 mm | -10 mm |
| Jul | 25.7 °C | +0.5 °C | 4 mm | -15 mm |
| Aug | 27.5 °C | +1.0 °C | 16 mm | -10 mm |
| Sep | 28.5 °C | +0.9 °C | 18 mm | -40 mm |
| Oct | 29.2 °C | +1.0 °C | 87 mm | -35 mm |
| Nov | 30.0 °C | +1.8 °C | 98 mm | -104 mm |
| Dec | 32.1 °C | +2.7 °C | 203 mm | -27 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 Itaperuna?
Itaperuna has a tropical savanna climate (Köppen Aw). Over 1940-2025, the average annual temperature is 22.9 °C and it receives 1,291 mm of precipitation per year.
What is the hottest day ever recorded in Itaperuna?
The hottest day measured in Itaperuna between 1940 and 2025 was 18 November 2023, reaching 39.3 °C.
What is the coldest day in Itaperuna?
The coldest day measured in Itaperuna between 1940 and 2025 was 1 June 1979, at 6.9 °C.
Does it snow in Itaperuna?
Almost never: Itaperuna sees virtually no snow, with about 0 frost days per year.
Has the climate of Itaperuna warmed?
Yes: Itaperuna warmed by +2.0 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Itaperuna?
The wettest day measured in Itaperuna between 1940 and 2025 was 14 December 1987, with 144 mm of rain in 24 hours.
What was the windiest day in Itaperuna?
The windiest day measured in Itaperuna between 1940 and 2025 was 9 October 2024, with winds reaching 24.8 km/h.
What is the warmest month in Itaperuna?
The warmest month in Itaperuna is February (25.7 °C on average); the coldest is July (19.5 °C).
How much does it rain in Itaperuna?
Itaperuna receives on average 1,291 mm of precipitation per year, spread over about 137 rainy days.
Is it sunny in Itaperuna?
Itaperuna gets on average 9.4 hours of sunshine per day, roughly 3,431 hours per year over 1940-2025.
Are there tropical nights in Itaperuna?
Yes: Itaperuna has on average 151 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Itaperuna?
In Itaperuna, between 1940 and 2025, the highest apparent temperature reached 45.6 °C on 18 November 2023, and the lowest was 4.4 °C on 1 June 1979.
Compare Itaperuna with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Itaperuna