Rocinha climate — normals and trends
Rocinha (Brazil) has a tropical monsoon climate (Am) under the Köppen-Geiger classification. Its mean annual temperature is 23.4 °C and it receives 1,270 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 (26.4 °C on average) and the coldest is July (20.7 °C). Rainfall peaks in January.
Rocinha averages 0 frost days, 57 hot days (≥ 30 °C) and 157 rainy days per year.
Rocinha has warmed by +1.5 °C between 1940 and 2025, or +0.17 °C per decade. This trend is statistically significant.
The hottest day of the period reached 37.5 °C (on 18 November 2023) and the coldest 11.8 °C (on 18 July 2000).
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
RocinhaRio de Janeiro
- coords
- -22.99°, -43.25°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
23.4°C
Average daily high
26.5°C
Average daily low
20.9°C
Annual rainfall
1,270mm
Sunshine / day
9.6h
Mean relative humidity
81%
Average peak wind
16.9km/h
Seasonal range
5.7°C
Frost days (< 0 °C)
0 d/yr
Hot days (≥ 30 °C)
57 d/yr
Rainy days (≥ 1 mm)
157 d/yr
Annual snowfall
0.0 cm
Average feels-like high
29.7 °C
Average feels-like low
23.1 °C
Average peak gust
30.8 km/h
Tropical nights (≥ 20 °C)
226 d/yr
Solar radiation
17.2 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+1.5 °C
since 1940
+0.2 °C per decade · r² = 0.54 · 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
37.5 °C
18 November 2023
Coldest day
11.8 °C
18 July 2000
Wettest day
217 mm
27 March 1994
Windiest day
42.2 km/h
18 August 1977
Strongest gust
76.0 km/h
6 November 1976
Hottest feels-like
44.5 °C
18 November 2023
Coldest feels-like
9.6 °C
31 May 1979
Sunniest day
13.4 h
28 December 2025
Normals computed over complete calendar years 1940–2025.
A specific year
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Across the whole year
Month by month
| High | vs. normal | Precipitation | vs. normal | |
|---|---|---|---|---|
| Jan | 29.7 °C | +0.6 °C | 104 mm | -67 mm |
| Feb | 32.0 °C | +2.5 °C | 9 mm | -120 mm |
| Mar | 29.6 °C | +1.1 °C | 67 mm | -81 mm |
| Apr | 27.0 °C | 0.0 °C | 194 mm | +84 mm |
| May | 26.1 °C | +0.8 °C | 37 mm | -38 mm |
| Jun | 25.1 °C | +0.6 °C | 32 mm | -21 mm |
| Jul | 23.2 °C | -0.9 °C | 40 mm | -10 mm |
| Aug | 24.6 °C | -0.2 °C | 15 mm | -35 mm |
| Sep | 25.7 °C | +0.5 °C | 33 mm | -44 mm |
| Oct | 25.5 °C | -0.3 °C | 102 mm | -1 mm |
| Nov | 26.5 °C | +0.1 °C | 73 mm | -64 mm |
| Dec | 30.0 °C | +2.3 °C | 79 mm | -89 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 Rocinha?
Rocinha has a tropical monsoon climate (Köppen Am). Over 1940-2025, the average annual temperature is 23.4 °C and it receives 1,270 mm of precipitation per year.
What is the hottest day ever recorded in Rocinha?
The hottest day measured in Rocinha between 1940 and 2025 was 18 November 2023, reaching 37.5 °C.
What is the coldest day in Rocinha?
The coldest day measured in Rocinha between 1940 and 2025 was 18 July 2000, at 11.8 °C.
Does it snow in Rocinha?
Almost never: Rocinha sees virtually no snow, with about 0 frost days per year.
Has the climate of Rocinha warmed?
Yes: Rocinha warmed by +1.5 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Rocinha?
The wettest day measured in Rocinha between 1940 and 2025 was 27 March 1994, with 217 mm of rain in 24 hours.
What was the windiest day in Rocinha?
The windiest day measured in Rocinha between 1940 and 2025 was 18 August 1977, with winds reaching 42.2 km/h.
What is the warmest month in Rocinha?
The warmest month in Rocinha is February (26.4 °C on average); the coldest is July (20.7 °C).
How much does it rain in Rocinha?
Rocinha receives on average 1,270 mm of precipitation per year, spread over about 157 rainy days.
Is it sunny in Rocinha?
Rocinha gets on average 9.6 hours of sunshine per day, roughly 3,504 hours per year over 1940-2025.
Are there tropical nights in Rocinha?
Yes: Rocinha has on average 226 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Rocinha?
In Rocinha, between 1940 and 2025, the highest apparent temperature reached 44.5 °C on 18 November 2023, and the lowest was 9.6 °C on 31 May 1979.
Compare Rocinha with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Rocinha