Wareham climate — normals and trends
Wareham (United Kingdom) has a temperate oceanic climate (Cfb) under the Köppen-Geiger classification. Its mean annual temperature is 10.8 °C and it receives 690 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 (16.8 °C on average) and the coldest is February (5.5 °C). Rainfall peaks in November.
Wareham averages 14 frost days, 0 hot days (≥ 30 °C) and 125 rainy days per year.
Wareham has warmed by +1.5 °C between 1940 and 2025, or +0.18 °C per decade. This trend is statistically significant.
The number of frost days there went from about 22 to 6 per year over the period.
The hottest day of the period reached 31.0 °C (on 28 June 1976) and the coldest -9.0 °C (on 21 January 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
WarehamEngland
- coords
- 50.69°, -2.11°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
10.8°C
Average daily high
13.3°C
Average daily low
8.3°C
Annual rainfall
690mm
Sunshine / day
8.2h
Mean relative humidity
81%
Average peak wind
23.8km/h
Seasonal range
11.3°C
Frost days (< 0 °C)
14 d/yr
Hot days (≥ 30 °C)
0 d/yr
Rainy days (≥ 1 mm)
125 d/yr
Annual snowfall
6.8 cm
Average feels-like high
10.6 °C
Average feels-like low
5.1 °C
Average peak gust
42.5 km/h
Tropical nights (≥ 20 °C)
0 d/yr
Solar radiation
11.2 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+1.5 °C
since 1940
+0.2 °C per decade · r² = 0.40 · 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
31.0 °C
28 June 1976
Coldest day
-9.0 °C
21 January 1940
Wettest day
41 mm
27 December 1979
Windiest day
76.9 km/h
25 January 1990
Strongest gust
139.3 km/h
25 January 1990
Hottest feels-like
33.7 °C
27 June 1976
Coldest feels-like
-16.1 °C
21 January 1940
Snowiest day
17.6 cm
19 February 1978
Sunniest day
16.0 h
9 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 | 7.7 °C | +0.2 °C | 126 mm | +58 mm |
| Feb | 8.1 °C | +0.6 °C | 53 mm | -1 mm |
| Mar | 11.3 °C | +1.9 °C | 9 mm | -43 mm |
| Apr | 14.9 °C | +3.1 °C | 42 mm | -5 mm |
| May | 17.7 °C | +2.8 °C | 36 mm | -16 mm |
| Jun | 20.0 °C | +2.2 °C | 59 mm | +11 mm |
| Jul | 22.5 °C | +2.7 °C | 40 mm | -5 mm |
| Aug | 21.7 °C | +2.0 °C | 27 mm | -27 mm |
| Sep | 17.8 °C | +0.1 °C | 73 mm | +17 mm |
| Oct | 15.0 °C | +0.6 °C | 64 mm | -8 mm |
| Nov | 12.2 °C | +1.5 °C | 93 mm | +18 mm |
| Dec | 10.2 °C | +1.7 °C | 95 mm | +25 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 Wareham?
Wareham has a temperate oceanic climate (Köppen Cfb). Over 1940-2025, the average annual temperature is 10.8 °C and it receives 690 mm of precipitation per year.
What is the hottest day ever recorded in Wareham?
The hottest day measured in Wareham between 1940 and 2025 was 28 June 1976, reaching 31.0 °C.
What is the coldest day in Wareham?
The coldest day measured in Wareham between 1940 and 2025 was 21 January 1940, at -9.0 °C.
Does it snow in Wareham?
Yes. Wareham gets on average 6.8 cm of snow per year and has around 14 frost days.
Has the climate of Wareham warmed?
Yes: Wareham warmed by +1.5 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Wareham?
The wettest day measured in Wareham between 1940 and 2025 was 27 December 1979, with 41 mm of rain in 24 hours.
What was the windiest day in Wareham?
The windiest day measured in Wareham between 1940 and 2025 was 25 January 1990, with winds reaching 76.9 km/h.
What is the warmest month in Wareham?
The warmest month in Wareham is July (16.8 °C on average); the coldest is February (5.5 °C).
How much does it rain in Wareham?
Wareham receives on average 690 mm of precipitation per year, spread over about 125 rainy days.
Is it sunny in Wareham?
Wareham gets on average 8.2 hours of sunshine per day, roughly 2,993 hours per year over 1940-2025.
What is the biggest single-day snowfall in Wareham?
The heaviest 24-hour snowfall measured in Wareham between 1940 and 2025 was 19 February 1978, with 17.6 cm.
Are there tropical nights in Wareham?
Almost never: tropical nights (temperature staying above 20 °C) are virtually non-existent in Wareham.
What was the most extreme apparent temperature in Wareham?
In Wareham, between 1940 and 2025, the highest apparent temperature reached 33.7 °C on 27 June 1976, and the lowest was -16.1 °C on 21 January 1940.
Compare Wareham with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Wareham