Constantí climate — normals and trends
Constantí (Spain) has a humid subtropical climate (Cfa) under the Köppen-Geiger classification. Its mean annual temperature is 15.1 °C and it receives 551 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 (24.0 °C on average) and the coldest is January (7.0 °C). Rainfall peaks in October.
Constantí averages 13 frost days, 28 hot days (≥ 30 °C) and 85 rainy days per year.
Constantí has warmed by +2.5 °C between 1940 and 2025, or +0.29 °C per decade. This trend is statistically significant.
The number of frost days there went from about 19 to 7 per year over the period.
The hottest day of the period reached 39.0 °C (on 17 August 2025) and the coldest -10.6 °C (on 17 December 1963).
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
ConstantíCatalonia
- coords
- 41.15°, 1.21°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
15.1°C
Average daily high
19.9°C
Average daily low
10.9°C
Annual rainfall
551mm
Sunshine / day
10.5h
Mean relative humidity
70%
Average peak wind
16.4km/h
Seasonal range
17.0°C
Frost days (< 0 °C)
13 d/yr
Hot days (≥ 30 °C)
28 d/yr
Rainy days (≥ 1 mm)
85 d/yr
Annual snowfall
5.4 cm
Average feels-like high
18.8 °C
Average feels-like low
9.4 °C
Average peak gust
35.8 km/h
Tropical nights (≥ 20 °C)
29 d/yr
Solar radiation
16.4 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+2.5 °C
since 1940
+0.3 °C per decade · r² = 0.67 · 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
17 August 2025
Coldest day
-10.6 °C
17 December 1963
Wettest day
113 mm
11 October 1970
Windiest day
56.4 km/h
24 January 2009
Strongest gust
114.8 km/h
24 January 2009
Hottest feels-like
41.2 °C
23 August 2023
Coldest feels-like
-15.5 °C
7 January 1985
Snowiest day
28.5 cm
25 February 1944
Sunniest day
14.1 h
7 June 2024
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 | 14.3 °C | +2.8 °C | 11 mm | -23 mm |
| Feb | 14.7 °C | +1.5 °C | 24 mm | -7 mm |
| Mar | 14.8 °C | -1.2 °C | 111 mm | +66 mm |
| Apr | 19.7 °C | +1.4 °C | 38 mm | -14 mm |
| May | 24.2 °C | +2.2 °C | 52 mm | -3 mm |
| Jun | 31.4 °C | +5.2 °C | 4 mm | -33 mm |
| Jul | 29.9 °C | +0.6 °C | 99 mm | +74 mm |
| Aug | 32.4 °C | +3.6 °C | 16 mm | -31 mm |
| Sep | 26.1 °C | +0.7 °C | 55 mm | -14 mm |
| Oct | 22.9 °C | +2.0 °C | 39 mm | -30 mm |
| Nov | 16.8 °C | +1.3 °C | 39 mm | -9 mm |
| Dec | 13.3 °C | +1.3 °C | 83 mm | +44 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 Constantí?
Constantí has a humid subtropical climate (Köppen Cfa). Over 1940-2025, the average annual temperature is 15.1 °C and it receives 551 mm of precipitation per year.
What is the hottest day ever recorded in Constantí?
The hottest day measured in Constantí between 1940 and 2025 was 17 August 2025, reaching 39.0 °C.
What is the coldest day in Constantí?
The coldest day measured in Constantí between 1940 and 2025 was 17 December 1963, at -10.6 °C.
Does it snow in Constantí?
Yes. Constantí gets on average 5.4 cm of snow per year and has around 13 frost days.
Has the climate of Constantí warmed?
Yes: Constantí warmed by +2.5 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Constantí?
The wettest day measured in Constantí between 1940 and 2025 was 11 October 1970, with 113 mm of rain in 24 hours.
What was the windiest day in Constantí?
The windiest day measured in Constantí between 1940 and 2025 was 24 January 2009, with winds reaching 56.4 km/h.
What is the warmest month in Constantí?
The warmest month in Constantí is July (24.0 °C on average); the coldest is January (7.0 °C).
How much does it rain in Constantí?
Constantí receives on average 551 mm of precipitation per year, spread over about 85 rainy days.
Is it sunny in Constantí?
Constantí 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 Constantí?
The heaviest 24-hour snowfall measured in Constantí between 1940 and 2025 was 25 February 1944, with 28.5 cm.
Are there tropical nights in Constantí?
Yes: Constantí has on average 29 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Constantí?
In Constantí, between 1940 and 2025, the highest apparent temperature reached 41.2 °C on 23 August 2023, and the lowest was -15.5 °C on 7 January 1985.
Compare Constantí with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Constantí