Santa Lucía climate — normals and trends
Santa Lucía (Uruguay) has a humid subtropical climate (Cfa) under the Köppen-Geiger classification. Its mean annual temperature is 16.8 °C and it receives 1,013 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 (23.6 °C on average) and the coldest is July (10.4 °C). Rainfall peaks in March.
Santa Lucía averages 2 frost days, 38 hot days (≥ 30 °C) and 96 rainy days per year.
Santa Lucía has warmed by +0.4 °C between 1940 and 2025, or +0.05 °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 41.1 °C (on 14 January 2022) and the coldest -4.0 °C (on 15 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
Santa LucíaCanelones
- coords
- -34.45°, -56.39°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
16.8°C
Average daily high
21.8°C
Average daily low
12.2°C
Annual rainfall
1,013mm
Sunshine / day
9.5h
Mean relative humidity
75%
Average peak wind
19.3km/h
Seasonal range
13.2°C
Frost days (< 0 °C)
2 d/yr
Hot days (≥ 30 °C)
38 d/yr
Rainy days (≥ 1 mm)
96 d/yr
Annual snowfall
0.0 cm
Average feels-like high
21.5 °C
Average feels-like low
10.6 °C
Average peak gust
36.7 km/h
Tropical nights (≥ 20 °C)
24 d/yr
Solar radiation
17.1 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+0.4 °C
since 1940
+0.1 °C per decade · r² = 0.07 · p = 0.017
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
41.1 °C
14 January 2022
Coldest day
-4.0 °C
15 June 1967
Wettest day
146 mm
12 April 1959
Windiest day
61.6 km/h
29 May 1984
Strongest gust
106.9 km/h
29 May 1984
Hottest feels-like
43.7 °C
2 February 1947
Coldest feels-like
-8.1 °C
14 June 1967
Snowiest day
0.1 cm
23 June 2025
Sunniest day
14.1 h
18 December 1947
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 | 29.6 °C | +0.4 °C | 55 mm | -27 mm |
| Feb | 29.6 °C | +1.5 °C | 113 mm | +17 mm |
| Mar | 26.8 °C | +0.9 °C | 103 mm | +2 mm |
| Apr | 21.7 °C | -0.5 °C | 53 mm | -34 mm |
| May | 19.9 °C | +1.4 °C | 100 mm | +22 mm |
| Jun | 14.4 °C | -1.0 °C | 50 mm | -23 mm |
| Jul | 15.1 °C | +0.2 °C | 24 mm | -51 mm |
| Aug | 16.8 °C | +0.4 °C | 84 mm | +1 mm |
| Sep | 18.7 °C | +0.5 °C | 58 mm | -27 mm |
| Oct | 22.6 °C | +1.6 °C | 63 mm | -34 mm |
| Nov | 24.8 °C | +0.5 °C | 66 mm | -19 mm |
| Dec | 30.4 °C | +2.9 °C | 41 mm | -31 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 Santa Lucía?
Santa Lucía has a humid subtropical climate (Köppen Cfa). Over 1940-2025, the average annual temperature is 16.8 °C and it receives 1,013 mm of precipitation per year.
What is the hottest day ever recorded in Santa Lucía?
The hottest day measured in Santa Lucía between 1940 and 2025 was 14 January 2022, reaching 41.1 °C.
What is the coldest day in Santa Lucía?
The coldest day measured in Santa Lucía between 1940 and 2025 was 15 June 1967, at -4.0 °C.
Does it snow in Santa Lucía?
Almost never: Santa Lucía sees virtually no snow, with about 2 frost days per year.
Has the climate of Santa Lucía warmed?
Yes: Santa Lucía warmed by +0.4 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Santa Lucía?
The wettest day measured in Santa Lucía between 1940 and 2025 was 12 April 1959, with 146 mm of rain in 24 hours.
What was the windiest day in Santa Lucía?
The windiest day measured in Santa Lucía between 1940 and 2025 was 29 May 1984, with winds reaching 61.6 km/h.
What is the warmest month in Santa Lucía?
The warmest month in Santa Lucía is January (23.6 °C on average); the coldest is July (10.4 °C).
How much does it rain in Santa Lucía?
Santa Lucía receives on average 1,013 mm of precipitation per year, spread over about 96 rainy days.
Is it sunny in Santa Lucía?
Santa Lucía gets on average 9.5 hours of sunshine per day, roughly 3,468 hours per year over 1940-2025.
What is the biggest single-day snowfall in Santa Lucía?
The heaviest 24-hour snowfall measured in Santa Lucía between 1940 and 2025 was 23 June 2025, with 0.1 cm.
Are there tropical nights in Santa Lucía?
Yes: Santa Lucía has on average 24 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Santa Lucía?
In Santa Lucía, between 1940 and 2025, the highest apparent temperature reached 43.7 °C on 2 February 1947, and the lowest was -8.1 °C on 14 June 1967.
Compare Santa Lucía with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Santa Lucía