Mafra climate — normals and trends
Mafra (Portugal) has a warm-summer mediterranean climate (Csb) under the Köppen-Geiger classification. Its mean annual temperature is 15.6 °C and it receives 629 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 (20.5 °C on average) and the coldest is January (11.1 °C). Rainfall peaks in December.
Mafra averages 0 frost days, 4 hot days (≥ 30 °C) and 87 rainy days per year.
Mafra has warmed by +0.8 °C between 1940 and 2025, or +0.10 °C per decade. This trend is statistically significant.
The hottest day of the period reached 39.0 °C (on 21 July 1941) and the coldest -1.6 °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
MafraLisbon District
- coords
- 38.94°, -9.33°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
15.6°C
Average daily high
18.8°C
Average daily low
12.9°C
Annual rainfall
629mm
Sunshine / day
10.3h
Mean relative humidity
77%
Average peak wind
22.4km/h
Seasonal range
9.4°C
Frost days (< 0 °C)
0 d/yr
Hot days (≥ 30 °C)
4 d/yr
Rainy days (≥ 1 mm)
87 d/yr
Annual snowfall
0.1 cm
Average feels-like high
17.6 °C
Average feels-like low
10.9 °C
Average peak gust
39.6 km/h
Tropical nights (≥ 20 °C)
3 d/yr
Solar radiation
17.1 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+0.8 °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
39.0 °C
21 July 1941
Coldest day
-1.6 °C
15 January 1945
Wettest day
83 mm
13 November 2025
Windiest day
77.2 km/h
15 February 1941
Strongest gust
126.0 km/h
15 February 1941
Hottest feels-like
39.7 °C
21 July 1941
Coldest feels-like
-6.8 °C
11 February 1956
Snowiest day
9.9 cm
13 January 1945
Sunniest day
14.7 h
17 June 2025
Normals computed over complete calendar years 1940–2025.
A specific year
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Across the whole year
Month by month
| High | vs. normal | Precipitation | vs. normal | |
|---|---|---|---|---|
| Jan | 15.3 °C | +1.7 °C | 136 mm | +54 mm |
| Feb | 15.4 °C | +1.2 °C | 66 mm | -9 mm |
| Mar | 15.6 °C | -0.3 °C | 188 mm | +118 mm |
| Apr | 18.3 °C | +1.1 °C | 109 mm | +51 mm |
| May | 20.5 °C | +1.3 °C | 36 mm | -7 mm |
| Jun | 24.3 °C | +2.1 °C | 6 mm | -8 mm |
| Jul | 25.1 °C | +0.8 °C | 1 mm | -2 mm |
| Aug | 25.7 °C | +1.0 °C | 1 mm | -5 mm |
| Sep | 23.3 °C | -0.1 °C | 16 mm | -12 mm |
| Oct | 22.3 °C | +1.9 °C | 54 mm | -17 mm |
| Nov | 17.0 °C | +0.4 °C | 238 mm | +149 mm |
| Dec | 14.4 °C | +0.2 °C | 156 mm | +66 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 Mafra?
Mafra has a warm-summer mediterranean climate (Köppen Csb). Over 1940-2025, the average annual temperature is 15.6 °C and it receives 629 mm of precipitation per year.
What is the hottest day ever recorded in Mafra?
The hottest day measured in Mafra between 1940 and 2025 was 21 July 1941, reaching 39.0 °C.
What is the coldest day in Mafra?
The coldest day measured in Mafra between 1940 and 2025 was 15 January 1945, at -1.6 °C.
Does it snow in Mafra?
Almost never: Mafra sees virtually no snow, with about 0 frost days per year.
Has the climate of Mafra warmed?
Yes: Mafra warmed by +0.8 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Mafra?
The wettest day measured in Mafra between 1940 and 2025 was 13 November 2025, with 83 mm of rain in 24 hours.
What was the windiest day in Mafra?
The windiest day measured in Mafra between 1940 and 2025 was 15 February 1941, with winds reaching 77.2 km/h.
What is the warmest month in Mafra?
The warmest month in Mafra is August (20.5 °C on average); the coldest is January (11.1 °C).
How much does it rain in Mafra?
Mafra receives on average 629 mm of precipitation per year, spread over about 87 rainy days.
Is it sunny in Mafra?
Mafra gets on average 10.3 hours of sunshine per day, roughly 3,760 hours per year over 1940-2025.
What is the biggest single-day snowfall in Mafra?
The heaviest 24-hour snowfall measured in Mafra between 1940 and 2025 was 13 January 1945, with 9.9 cm.
Are there tropical nights in Mafra?
Yes: Mafra has on average 3 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Mafra?
In Mafra, between 1940 and 2025, the highest apparent temperature reached 39.7 °C on 21 July 1941, and the lowest was -6.8 °C on 11 February 1956.
Compare Mafra with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Mafra