Rivera climate — normals and trends
Rivera (Uruguay) has a humid subtropical climate (Cfa) under the Köppen-Geiger classification. Its mean annual temperature is 18.0 °C and it receives 1,398 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 (24.2 °C on average) and the coldest is July (12.1 °C). Rainfall peaks in October.
Rivera averages 2 frost days, 49 hot days (≥ 30 °C) and 111 rainy days per year.
Rivera has warmed by +0.6 °C between 1940 and 2025, or +0.06 °C per decade. This trend is statistically significant.
The number of frost days there went from about 1 to 3 per year over the period.
The hottest day of the period reached 39.4 °C (on 26 December 2013) and the coldest -4.7 °C (on 14 June 1967).
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
RiveraRivera Department
- coords
- -30.91°, -55.55°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
18.0°C
Average daily high
23.2°C
Average daily low
13.2°C
Annual rainfall
1,398mm
Sunshine / day
9.0h
Mean relative humidity
76%
Average peak wind
18.3km/h
Seasonal range
12.1°C
Frost days (< 0 °C)
2 d/yr
Hot days (≥ 30 °C)
49 d/yr
Rainy days (≥ 1 mm)
111 d/yr
Annual snowfall
0.0 cm
Average feels-like high
23.7 °C
Average feels-like low
12.2 °C
Average peak gust
35.1 km/h
Tropical nights (≥ 20 °C)
36 d/yr
Solar radiation
16.9 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+0.6 °C
since 1940
+0.1 °C per decade · r² = 0.10 · p = 0.002
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
39.4 °C
26 December 2013
Coldest day
-4.7 °C
14 June 1967
Wettest day
127 mm
12 May 2017
Windiest day
49.8 km/h
19 September 2012
Strongest gust
102.2 km/h
17 October 1982
Hottest feels-like
44.3 °C
20 January 2022
Coldest feels-like
-8.7 °C
14 June 1967
Snowiest day
1.8 cm
8 July 1960
Sunniest day
13.8 h
4 January 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 | 31.1 °C | +1.4 °C | 67 mm | -64 mm |
| Feb | 31.8 °C | +3.1 °C | 111 mm | -14 mm |
| Mar | 28.8 °C | +1.8 °C | 70 mm | -42 mm |
| Apr | 22.8 °C | -0.6 °C | 104 mm | -15 mm |
| May | 20.6 °C | +0.8 °C | 187 mm | +77 mm |
| Jun | 14.7 °C | -2.4 °C | 129 mm | +12 mm |
| Jul | 16.0 °C | -0.9 °C | 119 mm | +11 mm |
| Aug | 18.4 °C | -0.1 °C | 117 mm | +10 mm |
| Sep | 20.3 °C | +0.2 °C | 164 mm | +32 mm |
| Oct | 24.0 °C | +1.2 °C | 71 mm | -63 mm |
| Nov | 26.0 °C | +0.2 °C | 118 mm | +16 mm |
| Dec | 29.1 °C | +0.4 °C | 266 mm | +164 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 Rivera?
Rivera has a humid subtropical climate (Köppen Cfa). Over 1940-2025, the average annual temperature is 18.0 °C and it receives 1,398 mm of precipitation per year.
What is the hottest day ever recorded in Rivera?
The hottest day measured in Rivera between 1940 and 2025 was 26 December 2013, reaching 39.4 °C.
What is the coldest day in Rivera?
The coldest day measured in Rivera between 1940 and 2025 was 14 June 1967, at -4.7 °C.
Does it snow in Rivera?
Almost never: Rivera sees virtually no snow, with about 2 frost days per year.
Has the climate of Rivera warmed?
Yes: Rivera warmed by +0.6 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Rivera?
The wettest day measured in Rivera between 1940 and 2025 was 12 May 2017, with 127 mm of rain in 24 hours.
What was the windiest day in Rivera?
The windiest day measured in Rivera between 1940 and 2025 was 19 September 2012, with winds reaching 49.8 km/h.
What is the warmest month in Rivera?
The warmest month in Rivera is January (24.2 °C on average); the coldest is July (12.1 °C).
How much does it rain in Rivera?
Rivera receives on average 1,398 mm of precipitation per year, spread over about 111 rainy days.
Is it sunny in Rivera?
Rivera gets on average 9.0 hours of sunshine per day, roughly 3,285 hours per year over 1940-2025.
What is the biggest single-day snowfall in Rivera?
The heaviest 24-hour snowfall measured in Rivera between 1940 and 2025 was 8 July 1960, with 1.8 cm.
Are there tropical nights in Rivera?
Yes: Rivera has on average 36 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Rivera?
In Rivera, between 1940 and 2025, the highest apparent temperature reached 44.3 °C on 20 January 2022, and the lowest was -8.7 °C on 14 June 1967.
Compare Rivera with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Rivera