Serpa climate — normals and trends
Serpa (Portugal) has a hot-summer mediterranean climate (Csa) under the Köppen-Geiger classification. Its mean annual temperature is 16.9 °C and it receives 488 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 August (25.2 °C on average) and the coldest is January (9.5 °C). Rainfall peaks in December.
Serpa averages 3 frost days, 74 hot days (≥ 30 °C) and 69 rainy days per year.
Serpa has warmed by +1.1 °C between 1940 and 2025, or +0.13 °C per decade. This trend is statistically significant.
The number of frost days there went from about 5 to 1 per year over the period.
The hottest day of the period reached 43.9 °C (on 1 August 2003) and the coldest -3.9 °C (on 15 January 1945).
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
SerpaBeja District
- coords
- 37.95°, -7.60°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
16.9°C
Average daily high
22.5°C
Average daily low
11.6°C
Annual rainfall
488mm
Sunshine / day
10.4h
Mean relative humidity
66%
Average peak wind
14.6km/h
Seasonal range
15.7°C
Frost days (< 0 °C)
3 d/yr
Hot days (≥ 30 °C)
74 d/yr
Rainy days (≥ 1 mm)
69 d/yr
Annual snowfall
0.1 cm
Average feels-like high
21.6 °C
Average feels-like low
10.2 °C
Average peak gust
31.9 km/h
Tropical nights (≥ 20 °C)
18 d/yr
Solar radiation
17.7 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+1.1 °C
since 1940
+0.1 °C per decade · r² = 0.22 · 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
43.9 °C
1 August 2003
Coldest day
-3.9 °C
15 January 1945
Wettest day
86 mm
23 September 2021
Windiest day
53.4 km/h
15 February 1941
Strongest gust
105.1 km/h
15 February 1941
Hottest feels-like
45.9 °C
23 July 1995
Coldest feels-like
-8.1 °C
28 January 2005
Snowiest day
2.7 cm
13 January 1945
Sunniest day
14.6 h
27 June 2025
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 | 15.7 °C | +1.7 °C | 114 mm | +57 mm |
| Feb | 17.1 °C | +1.6 °C | 34 mm | -20 mm |
| Mar | 17.0 °C | -1.2 °C | 179 mm | +120 mm |
| Apr | 21.2 °C | +0.8 °C | 75 mm | +25 mm |
| May | 25.9 °C | +1.8 °C | 24 mm | -11 mm |
| Jun | 32.7 °C | +4.0 °C | 4 mm | -10 mm |
| Jul | 33.8 °C | +1.5 °C | 0 mm | -3 mm |
| Aug | 34.5 °C | +2.3 °C | 1 mm | -3 mm |
| Sep | 29.7 °C | +1.1 °C | 5 mm | -19 mm |
| Oct | 26.9 °C | +3.5 °C | 33 mm | -28 mm |
| Nov | 18.3 °C | +0.4 °C | 81 mm | +19 mm |
| Dec | 14.6 °C | -0.1 °C | 107 mm | +41 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 Serpa?
Serpa has a hot-summer mediterranean climate (Köppen Csa). Over 1940-2025, the average annual temperature is 16.9 °C and it receives 488 mm of precipitation per year.
What is the hottest day ever recorded in Serpa?
The hottest day measured in Serpa between 1940 and 2025 was 1 August 2003, reaching 43.9 °C.
What is the coldest day in Serpa?
The coldest day measured in Serpa between 1940 and 2025 was 15 January 1945, at -3.9 °C.
Does it snow in Serpa?
Almost never: Serpa sees virtually no snow, with about 3 frost days per year.
Has the climate of Serpa warmed?
Yes: Serpa warmed by +1.1 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Serpa?
The wettest day measured in Serpa between 1940 and 2025 was 23 September 2021, with 86 mm of rain in 24 hours.
What was the windiest day in Serpa?
The windiest day measured in Serpa between 1940 and 2025 was 15 February 1941, with winds reaching 53.4 km/h.
What is the warmest month in Serpa?
The warmest month in Serpa is August (25.2 °C on average); the coldest is January (9.5 °C).
How much does it rain in Serpa?
Serpa receives on average 488 mm of precipitation per year, spread over about 69 rainy days.
Is it sunny in Serpa?
Serpa gets on average 10.4 hours of sunshine per day, roughly 3,796 hours per year over 1940-2025.
What is the biggest single-day snowfall in Serpa?
The heaviest 24-hour snowfall measured in Serpa between 1940 and 2025 was 13 January 1945, with 2.7 cm.
Are there tropical nights in Serpa?
Yes: Serpa has on average 18 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Serpa?
In Serpa, between 1940 and 2025, the highest apparent temperature reached 45.9 °C on 23 July 1995, and the lowest was -8.1 °C on 28 January 2005.
Compare Serpa with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Serpa