Aljezur climate — normals and trends
Aljezur (Portugal) has a warm-summer mediterranean climate (Csb) under the Köppen-Geiger classification. Its mean annual temperature is 16.5 °C and it receives 498 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 (21.7 °C on average) and the coldest is January (11.6 °C). Rainfall peaks in December.
Aljezur averages 0 frost days, 9 hot days (≥ 30 °C) and 73 rainy days per year.
Aljezur has warmed by +0.9 °C between 1940 and 2025, or +0.10 °C per decade. This trend is statistically significant.
The hottest day of the period reached 38.4 °C (on 21 July 1941) and the coldest -0.1 °C (on 12 February 1956).
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
AljezurFaro District
- coords
- 37.32°, -8.80°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
16.5°C
Average daily high
20.1°C
Average daily low
13.3°C
Annual rainfall
498mm
Sunshine / day
10.9h
Mean relative humidity
74%
Average peak wind
21.7km/h
Seasonal range
10.1°C
Frost days (< 0 °C)
0 d/yr
Hot days (≥ 30 °C)
9 d/yr
Rainy days (≥ 1 mm)
73 d/yr
Annual snowfall
0.0 cm
Average feels-like high
19.1 °C
Average feels-like low
11.6 °C
Average peak gust
40.8 km/h
Tropical nights (≥ 20 °C)
9 d/yr
Solar radiation
18.4 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+0.9 °C
since 1940
+0.1 °C per decade · r² = 0.26 · 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
38.4 °C
21 July 1941
Coldest day
-0.1 °C
12 February 1956
Wettest day
77 mm
20 November 2005
Windiest day
75.0 km/h
15 February 1941
Strongest gust
126.0 km/h
15 February 1941
Hottest feels-like
40.7 °C
4 August 2018
Coldest feels-like
-6.5 °C
4 February 1956
Snowiest day
2.0 cm
2 February 1954
Sunniest day
14.5 h
12 June 2019
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 | 16.4 °C | +1.8 °C | 113 mm | +48 mm |
| Feb | 16.7 °C | +1.5 °C | 58 mm | -1 mm |
| Mar | 16.3 °C | -0.6 °C | 153 mm | +90 mm |
| Apr | 19.1 °C | +0.8 °C | 74 mm | +28 mm |
| May | 22.5 °C | +1.7 °C | 17 mm | -10 mm |
| Jun | 26.6 °C | +2.8 °C | 2 mm | -7 mm |
| Jul | 26.7 °C | +0.6 °C | 2 mm | +0 mm |
| Aug | 27.6 °C | +1.2 °C | 0 mm | -2 mm |
| Sep | 25.4 °C | +0.6 °C | 4 mm | -14 mm |
| Oct | 23.7 °C | +2.1 °C | 25 mm | -33 mm |
| Nov | 18.3 °C | +0.5 °C | 92 mm | +21 mm |
| Dec | 15.3 °C | -0.1 °C | 105 mm | +26 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 Aljezur?
Aljezur has a warm-summer mediterranean climate (Köppen Csb). Over 1940-2025, the average annual temperature is 16.5 °C and it receives 498 mm of precipitation per year.
What is the hottest day ever recorded in Aljezur?
The hottest day measured in Aljezur between 1940 and 2025 was 21 July 1941, reaching 38.4 °C.
What is the coldest day in Aljezur?
The coldest day measured in Aljezur between 1940 and 2025 was 12 February 1956, at -0.1 °C.
Does it snow in Aljezur?
Almost never: Aljezur sees virtually no snow, with about 0 frost days per year.
Has the climate of Aljezur warmed?
Yes: Aljezur warmed by +0.9 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Aljezur?
The wettest day measured in Aljezur between 1940 and 2025 was 20 November 2005, with 77 mm of rain in 24 hours.
What was the windiest day in Aljezur?
The windiest day measured in Aljezur between 1940 and 2025 was 15 February 1941, with winds reaching 75.0 km/h.
What is the warmest month in Aljezur?
The warmest month in Aljezur is August (21.7 °C on average); the coldest is January (11.6 °C).
How much does it rain in Aljezur?
Aljezur receives on average 498 mm of precipitation per year, spread over about 73 rainy days.
Is it sunny in Aljezur?
Aljezur gets on average 10.9 hours of sunshine per day, roughly 3,979 hours per year over 1940-2025.
What is the biggest single-day snowfall in Aljezur?
The heaviest 24-hour snowfall measured in Aljezur between 1940 and 2025 was 2 February 1954, with 2.0 cm.
Are there tropical nights in Aljezur?
Yes: Aljezur has on average 9 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Aljezur?
In Aljezur, between 1940 and 2025, the highest apparent temperature reached 40.7 °C on 4 August 2018, and the lowest was -6.5 °C on 4 February 1956.
Compare Aljezur with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Aljezur