Bastia climate — normals and trends
Bastia (France) has a hot-summer mediterranean climate (Csa) under the Köppen-Geiger classification. Its mean annual temperature is 16.3 °C and it receives 621 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 (10.6 °C). Rainfall peaks in November.
Bastia averages 0 frost days, 0 hot days (≥ 30 °C) and 88 rainy days per year.
Bastia has warmed by +1.6 °C between 1940 and 2025, or +0.18 °C per decade. This trend is statistically significant.
The hottest day of the period reached 30.0 °C (on 11 August 2024) and the coldest -1.8 °C (on 14 February 1940).
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
BastiaCorsica
- coords
- 42.70°, 9.45°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
16.3°C
Average daily high
17.1°C
Average daily low
15.6°C
Annual rainfall
621mm
Sunshine / day
10.5h
Mean relative humidity
76%
Average peak wind
22.6km/h
Seasonal range
13.1°C
Frost days (< 0 °C)
0 d/yr
Hot days (≥ 30 °C)
0 d/yr
Rainy days (≥ 1 mm)
88 d/yr
Annual snowfall
2.3 cm
Average feels-like high
16.9 °C
Average feels-like low
13.7 °C
Average peak gust
32.7 km/h
Tropical nights (≥ 20 °C)
93 d/yr
Solar radiation
16.0 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+1.6 °C
since 1940
+0.2 °C per decade · r² = 0.43 · 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
30.0 °C
11 August 2024
Coldest day
-1.8 °C
14 February 1940
Wettest day
84 mm
31 October 1945
Windiest day
79.8 km/h
31 December 1979
Strongest gust
121.0 km/h
31 December 1979
Hottest feels-like
37.1 °C
12 August 2024
Coldest feels-like
-9.9 °C
23 January 1963
Snowiest day
12.5 cm
2 February 1956
Sunniest day
15.0 h
24 June 1940
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 | 13.3 °C | +1.8 °C | 52 mm | -14 mm |
| Feb | 13.1 °C | +1.6 °C | 65 mm | +4 mm |
| Mar | 14.0 °C | +1.5 °C | 73 mm | +13 mm |
| Apr | 15.8 °C | +1.5 °C | 115 mm | +64 mm |
| May | 18.9 °C | +1.5 °C | 30 mm | -7 mm |
| Jun | 24.7 °C | +3.6 °C | 2 mm | -20 mm |
| Jul | 26.2 °C | +2.3 °C | 16 mm | +6 mm |
| Aug | 26.1 °C | +1.7 °C | 9 mm | -10 mm |
| Sep | 23.2 °C | +1.2 °C | 66 mm | +22 mm |
| Oct | 20.0 °C | +1.1 °C | 38 mm | -39 mm |
| Nov | 16.4 °C | +1.0 °C | 108 mm | +15 mm |
| Dec | 14.3 °C | +1.6 °C | 229 mm | +147 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 Bastia?
Bastia has a hot-summer mediterranean climate (Köppen Csa). Over 1940-2025, the average annual temperature is 16.3 °C and it receives 621 mm of precipitation per year.
What is the hottest day ever recorded in Bastia?
The hottest day measured in Bastia between 1940 and 2025 was 11 August 2024, reaching 30.0 °C.
What is the coldest day in Bastia?
The coldest day measured in Bastia between 1940 and 2025 was 14 February 1940, at -1.8 °C.
Does it snow in Bastia?
Yes. Bastia gets on average 2.3 cm of snow per year and has around 0 frost days.
Has the climate of Bastia warmed?
Yes: Bastia warmed by +1.6 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Bastia?
The wettest day measured in Bastia between 1940 and 2025 was 31 October 1945, with 84 mm of rain in 24 hours.
What was the windiest day in Bastia?
The windiest day measured in Bastia between 1940 and 2025 was 31 December 1979, with winds reaching 79.8 km/h.
What is the warmest month in Bastia?
The warmest month in Bastia is August (23.7 °C on average); the coldest is January (10.6 °C).
How much does it rain in Bastia?
Bastia receives on average 621 mm of precipitation per year, spread over about 88 rainy days.
Is it sunny in Bastia?
Bastia 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 Bastia?
The heaviest 24-hour snowfall measured in Bastia between 1940 and 2025 was 2 February 1956, with 12.5 cm.
Are there tropical nights in Bastia?
Yes: Bastia has on average 93 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Bastia?
In Bastia, between 1940 and 2025, the highest apparent temperature reached 37.1 °C on 12 August 2024, and the lowest was -9.9 °C on 23 January 1963.
Compare Bastia with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Bastia