Weymouth weather forecast
UK towns · Dorset, England · 50.61°N 2.46°W
Weymouth, in Dorset, England, has its warmest weather in August, when daytime temperatures average 20.4°C, while January nights are the coldest at around 3.8°C. The town sees roughly 1140mm of rain a year; October is normally the wettest month and April the driest. Figures are averaged from 2020–2024 observations.
Climate averages
| Month | Avg high | Avg low | Rain | Rain days |
|---|---|---|---|---|
| Jan | 8.4° | 3.8° | 96mm | 13 |
| Feb | 9.8° | 5.4° | 101mm | 14 |
| Mar | 10.5° | 5.4° | 106mm | 16 |
| Apr | 12.8° | 5.9° | 56mm | 11 |
| May | 15.8° | 9.1° | 68mm | 13 |
| Jun | 18.9° | 12° | 57mm | 11 |
| Jul | 19.9° | 13.9° | 73mm | 14 |
| Aug | 20.4° | 14.5° | 62mm | 11 |
| Sep | 18.9° | 12.7° | 91mm | 11 |
| Oct | 15.5° | 11.3° | 180mm | 20 |
| Nov | 12° | 7.5° | 114mm | 14 |
| Dec | 9.6° | 5.7° | 136mm | 15 |
Seasons in Weymouth
Spring (March–May). Daytime highs in Weymouth climb from 10.5°C in March to 15.8°C by May, while nights ease from 5.4°C to 9.1°C. The season brings around 230mm of rain in total.
Summer (June–August). The warmest stretch of the year: afternoons average 19.7°C, peaking in August at 20.4°C. June is usually the driest of the summer months (57mm over ~11 rainy days). Around the June solstice, Weymouth gets roughly 16.3 hours of daylight.
Autumn (September–November). Daytime temperatures fall from 18.9°C in September to 12°C by November, and rainfall builds to its annual peak — October is the wettest month of the year (180mm).
Winter (December–February). Nights average 5.0°C, with January the coldest month (average low 3.8°C, daytime high 8.4°C). Expect about 42 days with measurable rain over the three months, and only around 7.7 hours of daylight in mid-December.
How Weymouth compares
| Weymouth | UK town average | |
|---|---|---|
| Annual rainfall | 1140mm | 1054mm |
| Rainy days per year | 163 | 167 |
| Summer daytime high | 19.7°C | 19.7°C |
| Winter night low | 5.0°C | 3.4°C |
Weymouth is about 8% wetter than the average for the 121 UK towns tracked on this site (1054mm), based on 2020–2024 monthly normals.
Weymouth weather FAQs
What is the warmest month in Weymouth?
August is typically the warmest month in Weymouth, with average daytime highs of 20.4°C. Summer afternoons (June–August) average around 19.7°C.
What is the wettest month in Weymouth?
October is usually the wettest month, with around 180mm of rain over roughly 20 rainy days. April is typically the driest (56mm).
How much does it rain in Weymouth per year?
Weymouth receives roughly 1140mm of precipitation per year, spread over about 163 days with at least 1mm of rain (based on 2020–2024 observations).
How cold are winters in Weymouth?
Winter nights (December–February) in Weymouth average around 5.0°C, with January typically the coldest month (average low 3.8°C).
When is the best time to visit Weymouth for good weather?
Late spring and summer offer the most reliable weather in Weymouth. June is typically the driest of the warm months (57mm of rain), while August is the warmest, averaging 20.4°C by day — and near the June solstice there are around 16 hours of daylight to enjoy.
How does Weymouth's weather compare with the rest of the UK?
Weymouth receives 1140mm of rain a year, about 8% wetter than the average for the 121 UK towns tracked on this site (1054mm). Summer daytime highs average 19.7°C against a UK-town average of 19.7°C, and winter nights average 5.0°C versus 3.4°C.
Is it going to rain in Weymouth?
For up-to-the-minute rain tracking, check the live rain radar — as a long-term guide, Weymouth averages 163 rainy days a year, with October the wettest month (180mm) and April the driest (56mm).
What is the 7-day forecast for Weymouth?
See the live hourly and 7-day forecast for day-by-day temperatures and rain chance. The figures on this page are long-term climate averages from 2020–2024, not the live forecast.