San Clemente climate — normals and trends
San Clemente (Peru) has a hot desert climate (BWh) under the Köppen-Geiger classification. Its mean annual temperature is 19.1 °C and it receives 25 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 (22.5 °C on average) and the coldest is August (16.5 °C). Rainfall peaks in February.
San Clemente averages 0 frost days, 0 hot days (≥ 30 °C) and 6 rainy days per year.
San Clemente has warmed by +0.9 °C between 1940 and 2025, or +0.11 °C per decade. This trend is statistically significant.
The hottest day of the period reached 29.3 °C (on 12 February 1998) and the coldest 12.5 °C (on 25 July 1954).
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
San ClementeIca
- coords
- -13.67°, -76.15°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
19.1°C
Average daily high
21.2°C
Average daily low
17.6°C
Annual rainfall
25mm
Sunshine / day
11.4h
Mean relative humidity
85%
Average peak wind
21.3km/h
Seasonal range
6.0°C
Frost days (< 0 °C)
0 d/yr
Hot days (≥ 30 °C)
0 d/yr
Rainy days (≥ 1 mm)
6 d/yr
Annual snowfall
0.0 cm
Average feels-like high
22.6 °C
Average feels-like low
18.2 °C
Average peak gust
32.2 km/h
Tropical nights (≥ 20 °C)
81 d/yr
Solar radiation
23.4 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+0.9 °C
since 1940
+0.1 °C per decade · r² = 0.16 · 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
29.3 °C
12 February 1998
Coldest day
12.5 °C
25 July 1954
Wettest day
81 mm
10 March 1942
Windiest day
38.2 km/h
5 April 1973
Strongest gust
55.1 km/h
5 April 1973
Hottest feels-like
33.7 °C
24 January 1998
Coldest feels-like
10.5 °C
26 August 2007
Sunniest day
12.6 h
23 January 2007
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 | 23.9 °C | +0.2 °C | 2 mm | -2 mm |
| Feb | 25.4 °C | +1.0 °C | 8 mm | +2 mm |
| Mar | 25.3 °C | +1.1 °C | 2 mm | -4 mm |
| Apr | 23.3 °C | +0.6 °C | 0 mm | -2 mm |
| May | 21.0 °C | +0.1 °C | 0 mm | -2 mm |
| Jun | 19.5 °C | -0.2 °C | 1 mm | -1 mm |
| Jul | 18.8 °C | -0.2 °C | 0 mm | -0 mm |
| Aug | 18.9 °C | +0.1 °C | 0 mm | -0 mm |
| Sep | 19.4 °C | +0.4 °C | 0 mm | +0 mm |
| Oct | 20.2 °C | +0.7 °C | 0 mm | -0 mm |
| Nov | 21.2 °C | +0.6 °C | 0 mm | -1 mm |
| Dec | 22.6 °C | +0.4 °C | 0 mm | -2 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 San Clemente?
San Clemente has a hot desert climate (Köppen BWh). Over 1940-2025, the average annual temperature is 19.1 °C and it receives 25 mm of precipitation per year.
What is the hottest day ever recorded in San Clemente?
The hottest day measured in San Clemente between 1940 and 2025 was 12 February 1998, reaching 29.3 °C.
What is the coldest day in San Clemente?
The coldest day measured in San Clemente between 1940 and 2025 was 25 July 1954, at 12.5 °C.
Does it snow in San Clemente?
Almost never: San Clemente sees virtually no snow, with about 0 frost days per year.
Has the climate of San Clemente warmed?
Yes: San Clemente warmed by +0.9 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in San Clemente?
The wettest day measured in San Clemente between 1940 and 2025 was 10 March 1942, with 81 mm of rain in 24 hours.
What was the windiest day in San Clemente?
The windiest day measured in San Clemente between 1940 and 2025 was 5 April 1973, with winds reaching 38.2 km/h.
What is the warmest month in San Clemente?
The warmest month in San Clemente is February (22.5 °C on average); the coldest is August (16.5 °C).
How much does it rain in San Clemente?
San Clemente receives on average 25 mm of precipitation per year, spread over about 6 rainy days.
Is it sunny in San Clemente?
San Clemente gets on average 11.4 hours of sunshine per day, roughly 4,161 hours per year over 1940-2025.
Are there tropical nights in San Clemente?
Yes: San Clemente has on average 81 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in San Clemente?
In San Clemente, between 1940 and 2025, the highest apparent temperature reached 33.7 °C on 24 January 1998, and the lowest was 10.5 °C on 26 August 2007.
Compare San Clemente with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around San Clemente