Cabo Frio climate — normals and trends
Cabo Frio (Brazil) has a tropical savanna climate (Aw) under the Köppen-Geiger classification. Its mean annual temperature is 22.9 °C and it receives 811 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 March (24.9 °C on average) and the coldest is August (21.1 °C). Rainfall peaks in December.
Cabo Frio averages 0 frost days, 0 hot days (≥ 30 °C) and 111 rainy days per year.
Cabo Frio has warmed by +0.7 °C between 1940 and 2025, or +0.08 °C per decade. This trend is statistically significant.
The hottest day of the period reached 29.2 °C (on 14 March 2010) and the coldest 16.2 °C (on 3 August 1947).
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
Cabo FrioRio de Janeiro
- coords
- -22.89°, -42.03°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
22.9°C
Average daily high
23.6°C
Average daily low
22.2°C
Annual rainfall
811mm
Sunshine / day
10.3h
Mean relative humidity
84%
Average peak wind
29.3km/h
Seasonal range
3.8°C
Frost days (< 0 °C)
0 d/yr
Hot days (≥ 30 °C)
0 d/yr
Rainy days (≥ 1 mm)
111 d/yr
Annual snowfall
0.0 cm
Average feels-like high
25.9 °C
Average feels-like low
22.4 °C
Average peak gust
39.5 km/h
Tropical nights (≥ 20 °C)
330 d/yr
Solar radiation
19.0 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+0.7 °C
since 1940
+0.1 °C per decade · r² = 0.34 · 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
29.2 °C
14 March 2010
Coldest day
16.2 °C
3 August 1947
Wettest day
182 mm
4 January 1964
Windiest day
60.7 km/h
19 May 2022
Strongest gust
85.7 km/h
11 August 2022
Hottest feels-like
38.4 °C
24 February 2019
Coldest feels-like
9.4 °C
31 May 1979
Sunniest day
13.4 h
28 December 1940
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 | 25.9 °C | +0.8 °C | 33 mm | -61 mm |
| Feb | 25.2 °C | -0.2 °C | 0 mm | -63 mm |
| Mar | 26.2 °C | +0.7 °C | 42 mm | -52 mm |
| Apr | 25.0 °C | +0.2 °C | 71 mm | +2 mm |
| May | 23.8 °C | +0.3 °C | 15 mm | -45 mm |
| Jun | 22.5 °C | -0.2 °C | 27 mm | -17 mm |
| Jul | 21.3 °C | -0.8 °C | 32 mm | -10 mm |
| Aug | 21.5 °C | -0.4 °C | 25 mm | -10 mm |
| Sep | 22.0 °C | +0.1 °C | 30 mm | -18 mm |
| Oct | 22.1 °C | -0.4 °C | 55 mm | -9 mm |
| Nov | 23.1 °C | -0.2 °C | 51 mm | -48 mm |
| Dec | 25.1 °C | +0.7 °C | 53 mm | -48 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 Cabo Frio?
Cabo Frio has a tropical savanna climate (Köppen Aw). Over 1940-2025, the average annual temperature is 22.9 °C and it receives 811 mm of precipitation per year.
What is the hottest day ever recorded in Cabo Frio?
The hottest day measured in Cabo Frio between 1940 and 2025 was 14 March 2010, reaching 29.2 °C.
What is the coldest day in Cabo Frio?
The coldest day measured in Cabo Frio between 1940 and 2025 was 3 August 1947, at 16.2 °C.
Does it snow in Cabo Frio?
Almost never: Cabo Frio sees virtually no snow, with about 0 frost days per year.
Has the climate of Cabo Frio warmed?
Yes: Cabo Frio warmed by +0.7 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Cabo Frio?
The wettest day measured in Cabo Frio between 1940 and 2025 was 4 January 1964, with 182 mm of rain in 24 hours.
What was the windiest day in Cabo Frio?
The windiest day measured in Cabo Frio between 1940 and 2025 was 19 May 2022, with winds reaching 60.7 km/h.
What is the warmest month in Cabo Frio?
The warmest month in Cabo Frio is March (24.9 °C on average); the coldest is August (21.1 °C).
How much does it rain in Cabo Frio?
Cabo Frio receives on average 811 mm of precipitation per year, spread over about 111 rainy days.
Is it sunny in Cabo Frio?
Cabo Frio gets on average 10.3 hours of sunshine per day, roughly 3,760 hours per year over 1940-2025.
Are there tropical nights in Cabo Frio?
Yes: Cabo Frio has on average 330 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Cabo Frio?
In Cabo Frio, between 1940 and 2025, the highest apparent temperature reached 38.4 °C on 24 February 2019, and the lowest was 9.4 °C on 31 May 1979.
Compare Cabo Frio with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Cabo Frio