Weymouth climate — normals and trends
Weymouth (United Kingdom) has a temperate oceanic climate (Cfb) under the Köppen-Geiger classification. Its mean annual temperature is 11.1 °C and it receives 847 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 (16.3 °C on average) and the coldest is February (6.4 °C). Rainfall peaks in November.
Weymouth averages 3 frost days, 0 hot days (≥ 30 °C) and 136 rainy days per year.
Weymouth has warmed by +1.3 °C between 1940 and 2025, or +0.15 °C per decade. This trend is statistically significant.
The number of frost days there went from about 6 to 0 per year over the period.
The hottest day of the period reached 26.4 °C (on 10 August 2003) and the coldest -5.2 °C (on 13 January 1987).
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
WeymouthEngland
- coords
- 50.61°, -2.46°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
11.1°C
Average daily high
12.4°C
Average daily low
9.8°C
Annual rainfall
847mm
Sunshine / day
8.6h
Mean relative humidity
82%
Average peak wind
31.0km/h
Seasonal range
9.9°C
Frost days (< 0 °C)
3 d/yr
Hot days (≥ 30 °C)
0 d/yr
Rainy days (≥ 1 mm)
136 d/yr
Annual snowfall
5.4 cm
Average feels-like high
9.3 °C
Average feels-like low
5.6 °C
Average peak gust
44.4 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
+1.3 °C
since 1940
+0.2 °C per decade · r² = 0.36 · 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
26.4 °C
10 August 2003
Coldest day
-5.2 °C
13 January 1987
Wettest day
54 mm
27 December 1979
Windiest day
88.5 km/h
25 January 1990
Strongest gust
140.0 km/h
25 January 1990
Hottest feels-like
28.8 °C
10 August 2003
Coldest feels-like
-14.7 °C
12 January 1987
Snowiest day
12.8 cm
3 January 1963
Sunniest day
16.0 h
16 June 1957
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 | 8.4 °C | +0.3 °C | 161 mm | +71 mm |
| Feb | 8.4 °C | +0.7 °C | 69 mm | -0 mm |
| Mar | 9.6 °C | +1.0 °C | 12 mm | -50 mm |
| Apr | 12.0 °C | +1.8 °C | 57 mm | +8 mm |
| May | 14.5 °C | +1.9 °C | 35 mm | -19 mm |
| Jun | 16.6 °C | +1.5 °C | 80 mm | +31 mm |
| Jul | 18.9 °C | +1.9 °C | 30 mm | -14 mm |
| Aug | 19.1 °C | +1.6 °C | 33 mm | -23 mm |
| Sep | 16.9 °C | +0.4 °C | 105 mm | +35 mm |
| Oct | 15.0 °C | +0.7 °C | 96 mm | -4 mm |
| Nov | 12.6 °C | +1.3 °C | 116 mm | +9 mm |
| Dec | 10.7 °C | +1.3 °C | 145 mm | +47 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 Weymouth?
Weymouth has a temperate oceanic climate (Köppen Cfb). Over 1940-2025, the average annual temperature is 11.1 °C and it receives 847 mm of precipitation per year.
What is the hottest day ever recorded in Weymouth?
The hottest day measured in Weymouth between 1940 and 2025 was 10 August 2003, reaching 26.4 °C.
What is the coldest day in Weymouth?
The coldest day measured in Weymouth between 1940 and 2025 was 13 January 1987, at -5.2 °C.
Does it snow in Weymouth?
Yes. Weymouth gets on average 5.4 cm of snow per year and has around 3 frost days.
Has the climate of Weymouth warmed?
Yes: Weymouth warmed by +1.3 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Weymouth?
The wettest day measured in Weymouth between 1940 and 2025 was 27 December 1979, with 54 mm of rain in 24 hours.
What was the windiest day in Weymouth?
The windiest day measured in Weymouth between 1940 and 2025 was 25 January 1990, with winds reaching 88.5 km/h.
What is the warmest month in Weymouth?
The warmest month in Weymouth is August (16.3 °C on average); the coldest is February (6.4 °C).
How much does it rain in Weymouth?
Weymouth receives on average 847 mm of precipitation per year, spread over about 136 rainy days.
Is it sunny in Weymouth?
Weymouth gets on average 8.6 hours of sunshine per day, roughly 3,139 hours per year over 1940-2025.
What is the biggest single-day snowfall in Weymouth?
The heaviest 24-hour snowfall measured in Weymouth between 1940 and 2025 was 3 January 1963, with 12.8 cm.
Are there tropical nights in Weymouth?
Almost never: tropical nights (temperature staying above 20 °C) are virtually non-existent in Weymouth.
What was the most extreme apparent temperature in Weymouth?
In Weymouth, between 1940 and 2025, the highest apparent temperature reached 28.8 °C on 10 August 2003, and the lowest was -14.7 °C on 12 January 1987.
Compare Weymouth with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Weymouth