Swindon weather forecast
UK towns · Wiltshire, England · 51.56°N 1.78°W
Swindon, in Wiltshire, England, has its warmest weather in August, when daytime temperatures average 21.3°C, while January nights are the coldest at around 1.8°C. The town sees roughly 898mm 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 | 7.3° | 1.8° | 69mm | 12 |
| Feb | 9.3° | 3.5° | 80mm | 13 |
| Mar | 10.5° | 3.7° | 78mm | 15 |
| Apr | 13° | 4.2° | 51mm | 9 |
| May | 16.5° | 7.9° | 69mm | 12 |
| Jun | 19.8° | 10.9° | 61mm | 11 |
| Jul | 21° | 12.8° | 73mm | 13 |
| Aug | 21.3° | 13.1° | 62mm | 11 |
| Sep | 19.1° | 11.1° | 84mm | 11 |
| Oct | 15° | 9° | 112mm | 15 |
| Nov | 10.7° | 5.2° | 74mm | 11 |
| Dec | 8.2° | 3.8° | 85mm | 15 |
Seasons in Swindon
Spring (March–May). Daytime highs in Swindon climb from 10.5°C in March to 16.5°C by May, while nights ease from 3.7°C to 7.9°C. The season brings around 198mm of rain in total.
Summer (June–August). The warmest stretch of the year: afternoons average 20.7°C, peaking in August at 21.3°C. June is usually the driest of the summer months (61mm over ~11 rainy days). Around the June solstice, Swindon gets roughly 16.4 hours of daylight.
Autumn (September–November). Daytime temperatures fall from 19.1°C in September to 10.7°C by November, and rainfall builds to its annual peak — October is the wettest month of the year (112mm).
Winter (December–February). Nights average 3.0°C, with January the coldest month (average low 1.8°C, daytime high 7.3°C). Expect about 40 days with measurable rain over the three months, and only around 7.6 hours of daylight in mid-December.
How Swindon compares
| Swindon | UK town average | |
|---|---|---|
| Annual rainfall | 898mm | 1054mm |
| Rainy days per year | 148 | 167 |
| Summer daytime high | 20.7°C | 19.7°C |
| Winter night low | 3.0°C | 3.4°C |
Swindon is about 15% drier than the average for the 121 UK towns tracked on this site (1054mm), based on 2020–2024 monthly normals.
Swindon weather FAQs
What is the warmest month in Swindon?
August is typically the warmest month in Swindon, with average daytime highs of 21.3°C. Summer afternoons (June–August) average around 20.7°C.
What is the wettest month in Swindon?
October is usually the wettest month, with around 112mm of rain over roughly 15 rainy days. April is typically the driest (51mm).
How much does it rain in Swindon per year?
Swindon receives roughly 898mm of precipitation per year, spread over about 148 days with at least 1mm of rain (based on 2020–2024 observations).
How cold are winters in Swindon?
Winter nights (December–February) in Swindon average around 3.0°C, with January typically the coldest month (average low 1.8°C).
When is the best time to visit Swindon for good weather?
Late spring and summer offer the most reliable weather in Swindon. June is typically the driest of the warm months (61mm of rain), while August is the warmest, averaging 21.3°C by day — and near the June solstice there are around 16 hours of daylight to enjoy.
How does Swindon's weather compare with the rest of the UK?
Swindon receives 898mm of rain a year, about 15% drier than the average for the 121 UK towns tracked on this site (1054mm). Summer daytime highs average 20.7°C against a UK-town average of 19.7°C, and winter nights average 3.0°C versus 3.4°C.
Is it going to rain in Swindon?
For up-to-the-minute rain tracking, check the live rain radar — as a long-term guide, Swindon averages 148 rainy days a year, with October the wettest month (112mm) and April the driest (51mm).
What is the 7-day forecast for Swindon?
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.