Grândola climate — normals and trends
Grândola (Portugal) has a hot-summer mediterranean climate (Csa) under the Köppen-Geiger classification. Its mean annual temperature is 16.3 °C and it receives 535 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 July (22.5 °C on average) and the coldest is January (10.4 °C). Rainfall peaks in December.
Grândola averages 1 frost days, 42 hot days (≥ 30 °C) and 75 rainy days per year.
Grândola has warmed by +1.0 °C between 1940 and 2025, or +0.12 °C per decade. This trend is statistically significant.
The number of frost days there went from about 2 to 0 per year over the period.
The hottest day of the period reached 43.3 °C (on 21 July 1941) and the coldest -2.7 °C (on 13 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
GrândolaSetúbal District
- coords
- 38.18°, -8.57°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
16.3°C
Average daily high
21.4°C
Average daily low
11.7°C
Annual rainfall
535mm
Sunshine / day
10.5h
Mean relative humidity
72%
Average peak wind
17.9km/h
Seasonal range
12.1°C
Frost days (< 0 °C)
1 d/yr
Hot days (≥ 30 °C)
42 d/yr
Rainy days (≥ 1 mm)
75 d/yr
Annual snowfall
0.1 cm
Average feels-like high
20.6 °C
Average feels-like low
10.2 °C
Average peak gust
37.0 km/h
Tropical nights (≥ 20 °C)
5 d/yr
Solar radiation
17.6 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+1.0 °C
since 1940
+0.1 °C per decade · r² = 0.28 · 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
43.3 °C
21 July 1941
Coldest day
-2.7 °C
13 January 1945
Wettest day
76 mm
12 January 1956
Windiest day
63.5 km/h
15 February 1941
Strongest gust
112.0 km/h
30 December 1981
Hottest feels-like
44.7 °C
4 August 2018
Coldest feels-like
-6.8 °C
12 February 1956
Snowiest day
3.9 cm
13 January 1945
Sunniest day
14.7 h
18 June 1941
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 | 16.3 °C | +2.0 °C | 140 mm | +73 mm |
| Feb | 17.1 °C | +1.6 °C | 51 mm | -13 mm |
| Mar | 17.0 °C | -0.8 °C | 181 mm | +118 mm |
| Apr | 20.8 °C | +1.2 °C | 87 mm | +33 mm |
| May | 24.5 °C | +1.9 °C | 30 mm | -6 mm |
| Jun | 30.4 °C | +4.0 °C | 3 mm | -9 mm |
| Jul | 30.9 °C | +1.7 °C | 2 mm | -1 mm |
| Aug | 31.3 °C | +2.0 °C | 0 mm | -3 mm |
| Sep | 28.2 °C | +1.4 °C | 13 mm | -10 mm |
| Oct | 25.8 °C | +3.1 °C | 34 mm | -28 mm |
| Nov | 18.0 °C | +0.1 °C | 113 mm | +43 mm |
| Dec | 14.9 °C | -0.1 °C | 108 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 Grândola?
Grândola has a hot-summer mediterranean climate (Köppen Csa). Over 1940-2025, the average annual temperature is 16.3 °C and it receives 535 mm of precipitation per year.
What is the hottest day ever recorded in Grândola?
The hottest day measured in Grândola between 1940 and 2025 was 21 July 1941, reaching 43.3 °C.
What is the coldest day in Grândola?
The coldest day measured in Grândola between 1940 and 2025 was 13 January 1945, at -2.7 °C.
Does it snow in Grândola?
Almost never: Grândola sees virtually no snow, with about 1 frost days per year.
Has the climate of Grândola warmed?
Yes: Grândola warmed by +1.0 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Grândola?
The wettest day measured in Grândola between 1940 and 2025 was 12 January 1956, with 76 mm of rain in 24 hours.
What was the windiest day in Grândola?
The windiest day measured in Grândola between 1940 and 2025 was 15 February 1941, with winds reaching 63.5 km/h.
What is the warmest month in Grândola?
The warmest month in Grândola is July (22.5 °C on average); the coldest is January (10.4 °C).
How much does it rain in Grândola?
Grândola receives on average 535 mm of precipitation per year, spread over about 75 rainy days.
Is it sunny in Grândola?
Grândola gets on average 10.5 hours of sunshine per day, roughly 3,833 hours per year over 1940-2025.
What is the biggest single-day snowfall in Grândola?
The heaviest 24-hour snowfall measured in Grândola between 1940 and 2025 was 13 January 1945, with 3.9 cm.
Are there tropical nights in Grândola?
Yes: Grândola has on average 5 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Grândola?
In Grândola, between 1940 and 2025, the highest apparent temperature reached 44.7 °C on 4 August 2018, and the lowest was -6.8 °C on 12 February 1956.
Compare Grândola with another city
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Nearby cities
The climate around Grândola