Amposta climate — normals and trends
Amposta (Spain) has a hot-summer mediterranean climate (Csa) under the Köppen-Geiger classification. Its mean annual temperature is 15.3 °C and it receives 582 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 (23.7 °C on average) and the coldest is January (8.0 °C). Rainfall peaks in October.
Amposta averages 3 frost days, 8 hot days (≥ 30 °C) and 80 rainy days per year.
Amposta has warmed by +2.2 °C between 1940 and 2025, or +0.26 °C per decade. This trend is statistically significant.
The number of frost days there went from about 7 to 0 per year over the period.
The hottest day of the period reached 36.3 °C (on 17 August 2025) and the coldest -7.7 °C (on 3 January 1971).
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
AmpostaCatalonia
- coords
- 40.71°, 0.58°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
15.3°C
Average daily high
19.1°C
Average daily low
11.9°C
Annual rainfall
582mm
Sunshine / day
10.6h
Mean relative humidity
71%
Average peak wind
17.9km/h
Seasonal range
15.7°C
Frost days (< 0 °C)
3 d/yr
Hot days (≥ 30 °C)
8 d/yr
Rainy days (≥ 1 mm)
80 d/yr
Annual snowfall
6.8 cm
Average feels-like high
18.4 °C
Average feels-like low
10.3 °C
Average peak gust
37.7 km/h
Tropical nights (≥ 20 °C)
41 d/yr
Solar radiation
16.6 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+2.2 °C
since 1940
+0.3 °C per decade · r² = 0.66 · 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
36.3 °C
17 August 2025
Coldest day
-7.7 °C
3 January 1971
Wettest day
136 mm
30 September 1959
Windiest day
60.8 km/h
14 January 1987
Strongest gust
122.0 km/h
14 January 1987
Hottest feels-like
39.9 °C
17 August 2025
Coldest feels-like
-15.2 °C
3 February 1956
Snowiest day
20.6 cm
24 February 1944
Sunniest day
14.1 h
28 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 | 13.8 °C | +2.1 °C | 13 mm | -28 mm |
| Feb | 14.3 °C | +1.5 °C | 15 mm | -18 mm |
| Mar | 14.1 °C | -0.8 °C | 130 mm | +82 mm |
| Apr | 18.0 °C | +1.1 °C | 42 mm | -12 mm |
| May | 22.0 °C | +1.8 °C | 46 mm | -9 mm |
| Jun | 28.5 °C | +4.1 °C | 5 mm | -29 mm |
| Jul | 29.2 °C | +1.7 °C | 64 mm | +41 mm |
| Aug | 30.6 °C | +3.2 °C | 10 mm | -29 mm |
| Sep | 25.6 °C | +1.0 °C | 92 mm | +20 mm |
| Oct | 21.9 °C | +1.5 °C | 87 mm | +8 mm |
| Nov | 16.8 °C | +1.2 °C | 25 mm | -33 mm |
| Dec | 13.5 °C | +1.1 °C | 118 mm | +70 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 Amposta?
Amposta has a hot-summer mediterranean climate (Köppen Csa). Over 1940-2025, the average annual temperature is 15.3 °C and it receives 582 mm of precipitation per year.
What is the hottest day ever recorded in Amposta?
The hottest day measured in Amposta between 1940 and 2025 was 17 August 2025, reaching 36.3 °C.
What is the coldest day in Amposta?
The coldest day measured in Amposta between 1940 and 2025 was 3 January 1971, at -7.7 °C.
Does it snow in Amposta?
Yes. Amposta gets on average 6.8 cm of snow per year and has around 3 frost days.
Has the climate of Amposta warmed?
Yes: Amposta warmed by +2.2 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Amposta?
The wettest day measured in Amposta between 1940 and 2025 was 30 September 1959, with 136 mm of rain in 24 hours.
What was the windiest day in Amposta?
The windiest day measured in Amposta between 1940 and 2025 was 14 January 1987, with winds reaching 60.8 km/h.
What is the warmest month in Amposta?
The warmest month in Amposta is August (23.7 °C on average); the coldest is January (8.0 °C).
How much does it rain in Amposta?
Amposta receives on average 582 mm of precipitation per year, spread over about 80 rainy days.
Is it sunny in Amposta?
Amposta gets on average 10.6 hours of sunshine per day, roughly 3,869 hours per year over 1940-2025.
What is the biggest single-day snowfall in Amposta?
The heaviest 24-hour snowfall measured in Amposta between 1940 and 2025 was 24 February 1944, with 20.6 cm.
Are there tropical nights in Amposta?
Yes: Amposta has on average 41 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Amposta?
In Amposta, between 1940 and 2025, the highest apparent temperature reached 39.9 °C on 17 August 2025, and the lowest was -15.2 °C on 3 February 1956.
Compare Amposta with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Amposta