Outreau climate — normals and trends
Outreau (France) has a temperate oceanic climate (Cfb) under the Köppen-Geiger classification. Its mean annual temperature is 10.6 °C and it receives 817 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 (17.0 °C on average) and the coldest is January (4.9 °C). Rainfall peaks in November.
Outreau averages 16 frost days, 0 hot days (≥ 30 °C) and 144 rainy days per year.
Outreau has warmed by +1.9 °C between 1940 and 2025, or +0.22 °C per decade. This trend is statistically significant.
The number of frost days there went from about 26 to 6 per year over the period.
The hottest day of the period reached 33.7 °C (on 25 July 2019) and the coldest -11.8 °C (on 6 January 1979).
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
OutreauHauts-de-France
- coords
- 50.71°, 1.59°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
10.6°C
Average daily high
12.6°C
Average daily low
8.7°C
Annual rainfall
817mm
Sunshine / day
8.5h
Mean relative humidity
81%
Average peak wind
27.7km/h
Seasonal range
12.1°C
Frost days (< 0 °C)
16 d/yr
Hot days (≥ 30 °C)
0 d/yr
Rainy days (≥ 1 mm)
144 d/yr
Annual snowfall
10.4 cm
Average feels-like high
9.7 °C
Average feels-like low
5.0 °C
Average peak gust
44.8 km/h
Tropical nights (≥ 20 °C)
0 d/yr
Solar radiation
11.7 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+1.9 °C
since 1940
+0.2 °C per decade · r² = 0.48 · 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
33.7 °C
25 July 2019
Coldest day
-11.8 °C
6 January 1979
Wettest day
54 mm
7 July 1969
Windiest day
84.4 km/h
25 January 1990
Strongest gust
141.5 km/h
25 January 1990
Hottest feels-like
36.1 °C
25 July 2019
Coldest feels-like
-17.9 °C
2 February 1956
Snowiest day
13.5 cm
29 March 1952
Sunniest day
16.0 h
8 June 1940
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 | 6.5 °C | 0.0 °C | 129 mm | +51 mm |
| Feb | 7.3 °C | +0.6 °C | 52 mm | -8 mm |
| Mar | 10.8 °C | +2.2 °C | 13 mm | -43 mm |
| Apr | 14.4 °C | +3.5 °C | 25 mm | -26 mm |
| May | 15.4 °C | +1.4 °C | 32 mm | -22 mm |
| Jun | 19.2 °C | +2.6 °C | 56 mm | +7 mm |
| Jul | 20.3 °C | +1.6 °C | 66 mm | +12 mm |
| Aug | 20.8 °C | +1.6 °C | 40 mm | -21 mm |
| Sep | 17.9 °C | +0.3 °C | 96 mm | +25 mm |
| Oct | 15.0 °C | +0.6 °C | 108 mm | +17 mm |
| Nov | 11.7 °C | +1.4 °C | 106 mm | +4 mm |
| Dec | 9.4 °C | +1.6 °C | 76 mm | -14 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 Outreau?
Outreau has a temperate oceanic climate (Köppen Cfb). Over 1940-2025, the average annual temperature is 10.6 °C and it receives 817 mm of precipitation per year.
What is the hottest day ever recorded in Outreau?
The hottest day measured in Outreau between 1940 and 2025 was 25 July 2019, reaching 33.7 °C.
What is the coldest day in Outreau?
The coldest day measured in Outreau between 1940 and 2025 was 6 January 1979, at -11.8 °C.
Does it snow in Outreau?
Yes. Outreau gets on average 10.4 cm of snow per year and has around 16 frost days.
Has the climate of Outreau warmed?
Yes: Outreau warmed by +1.9 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Outreau?
The wettest day measured in Outreau between 1940 and 2025 was 7 July 1969, with 54 mm of rain in 24 hours.
What was the windiest day in Outreau?
The windiest day measured in Outreau between 1940 and 2025 was 25 January 1990, with winds reaching 84.4 km/h.
What is the warmest month in Outreau?
The warmest month in Outreau is August (17.0 °C on average); the coldest is January (4.9 °C).
How much does it rain in Outreau?
Outreau receives on average 817 mm of precipitation per year, spread over about 144 rainy days.
Is it sunny in Outreau?
Outreau gets on average 8.5 hours of sunshine per day, roughly 3,103 hours per year over 1940-2025.
What is the biggest single-day snowfall in Outreau?
The heaviest 24-hour snowfall measured in Outreau between 1940 and 2025 was 29 March 1952, with 13.5 cm.
Are there tropical nights in Outreau?
Almost never: tropical nights (temperature staying above 20 °C) are virtually non-existent in Outreau.
What was the most extreme apparent temperature in Outreau?
In Outreau, between 1940 and 2025, the highest apparent temperature reached 36.1 °C on 25 July 2019, and the lowest was -17.9 °C on 2 February 1956.
Compare Outreau with another city
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Nearby cities
The climate around Outreau