Photo: Chris Heaton · CC BY-SA 2.0For weather, Westbury is about as ordinary as UK towns get
July afternoons reach 21.9°C (71°F) on a typical day and January nights drop to 1.8°C (35°F); 888 mm (35 in) of rain falls in a year. Only 21°C separates winter nights from summer afternoons. Warm days come often: about 15 a year reach 25°C, more than in 72% of UK towns. For walks and days out, the stretch from June to September brings highs of 19–22°C.
Met Office 1991–2020 averages for the town itself.
A year in Westbury at a glance
Each month’s typical high and low, in °C.
What a year in Westbury feels like
Typical highs and lows by season and by month, from the Met Office’s 1991–2020 averages.
About 888 mm of rain a year
November is the wettest month and May the driest. About 23 days a year bring 10 mm (0.4 in) or more. 7th wettest of 34 Wiltshire towns of 2,500+.
Rain by month
Millimetres
Sunshine by month
Hours of bright sunshine at Yeovilton
46 air frosts and 15 days of 25°C a year
On about 46 nights a year the air drops below freezing, and on about 1 days it stays below freezing all day. About 15 days a year reach 25°C (77°F).
Day counts are 1991–2020 averages from the Met Office’s 2 km grid. The Met Office calls a day of 25°C or more a summer day and a night below 0°C an air frost; ground frosts, on grass, come more often.
The Met Office station at Yeovilton
Yeovilton is 26 miles south-west of Westbury, 20 m (66 ft) above sea level. It is the nearest of the 37 long-running stations the Met Office publishes in full; at that distance read it for sunshine and the station’s own record, not as the town’s figures.
| Month | High | Low | Rain | Air frosts | Sun (hours) |
|---|---|---|---|---|---|
| January | 8.6°C | 2.0°C | 70 mm | 10.0 | 58 |
| February | 9.0°C | 1.8°C | 51 mm | 9.7 | 77 |
| March | 11.2°C | 3.0°C | 49 mm | 7.6 | 114 |
| April | 13.9°C | 4.5°C | 52 mm | 3.8 | 163 |
| May | 17.1°C | 7.4°C | 47 mm | 0.5 | 191 |
| June | 19.9°C | 10.3°C | 58 mm | 0.0 | 188 |
| July | 21.9°C | 12.2°C | 50 mm | 0.0 | 192 |
| August | 21.6°C | 12.2°C | 61 mm | 0.0 | 175 |
| September | 19.2°C | 10.0°C | 53 mm | 0.0 | 142 |
| October | 15.3°C | 7.6°C | 81 mm | 1.8 | 104 |
| November | 11.5°C | 4.4°C | 80 mm | 5.5 | 69 |
| December | 9.0°C | 2.3°C | 77 mm | 10.3 | 52 |
| Year | 14.9°C | 6.5°C | 728 mm | 49 | 1,524 |
Met Office historic station data, Yeovilton, 1991–2020 months averaged (a month needs 20 of the 30 years; estimated values counted, missing months left out). Sunshine: Kipp & Zonen recorder.
How Westbury compares
Against the 2,537 towns and cities of 2,500 or more across the UK, each with its own Met Office averages, and its place among Wiltshire towns that size.
Nearby towns’ climate
The nearest towns of 1,000+ within 12 miles: a hill, a valley or the sea can make a real difference over a few miles.
| Town | July high | January low | Rain a year |
|---|---|---|---|
| Westbury | 21.9°C | 1.8°C | 888 mm |
| Dilton Marsh 1.7 mi | 22.1°C about the same | 1.8°C about the same | 858 mm |
| North Bradley 2.5 mi | 22.9°C 0.9°C warmer | 1.8°C about the same | 765 mm |
| Bratton 2.8 mi | 21.7°C about the same | 1.5°C about the same | 923 mm |
| Southwick 3.1 mi | 22.3°C about the same | 1.8°C about the same | 808 mm |
| Warminster 4.0 mi | 21.8°C about the same | 1.6°C about the same | 988 mm |
| Trowbridge 4.2 mi | 22.8°C 0.9°C warmer | 1.7°C about the same | 772 mm |
Westbury weather by month
Average daily high and low, mean temperature and rain, 1991–2020, for the town itself (the Met Office’s HadUK-Grid).
| Month | High | Low | Mean | Rain |
|---|---|---|---|---|
| January | 7.8°C 46°F | 1.8°C 35°F | 4.8°C | 85 mm 3.4 in |
| February | 8.0°C 46°F | 1.4°C 35°F | 4.7°C | 67 mm 2.6 in |
| March | 10.5°C 51°F | 2.6°C 37°F | 6.5°C | 59 mm 2.3 in |
| April | 13.6°C 56°F | 4.1°C 39°F | 8.8°C | 62 mm 2.4 in |
| May | 16.9°C 62°F | 6.9°C 44°F | 11.8°C | 58 mm 2.3 in |
| June | 19.9°C 68°F | 9.8°C 50°F | 14.8°C | 59 mm 2.3 in |
| July | 21.9°C 71°F | 11.7°C 53°F | 16.7°C | 61 mm 2.4 in |
| August | 21.5°C 71°F | 11.7°C 53°F | 16.4°C | 72 mm 2.8 in |
| September | 18.7°C 66°F | 9.6°C 49°F | 14.1°C | 68 mm 2.7 in |
| October | 14.6°C 58°F | 6.9°C 44°F | 10.7°C | 97 mm 3.8 in |
| November | 10.6°C 51°F | 3.9°C 39°F | 7.2°C | 101 mm 4.0 in |
| December | 8.0°C 46°F | 1.8°C 35°F | 4.9°C | 98 mm 3.8 in |
| Year | 14.3°C | 6.0°C | 10.1°C | 888 mm |
Where Westbury’s numbers come from
Averages over 30 years, not a forecast.
- Mean temperature, rain and day counts: HadUK-Grid 1991–2020 averages for the 2 Met Office 2 km grid squares whose centre lies inside Westbury’s built-up area.
- Highs and lows: the Met Office publishes average daily maxima and minima on its 12 km grid; each is moved by the difference between the town’s 2 km mean temperature and the 12 km square’s, which carries the town’s own height and setting over.
- Weather station and sunshine: Met Office historic station data for Yeovilton, 26 miles away, months of 1991–2020 averaged.
- Comparisons: every town and city of 2,500 or more across the UK, all four nations, read the same way.
Met Office HadUK-Grid · Met Office Climate Data Portal · Historic station data. Open Government Licence v3.0.
Questions about Westbury’s climate
How warm does Westbury get in summer?
July is the warmest month, with average highs of 21.9°C (71°F). About 15 days a year reach 25°C (77°F), more than 72% of UK towns.
How cold does Westbury get in winter?
February nights average 1.4°C (35°F). The air drops below freezing on about 46 nights a year, and about 1 days a year stay below freezing all day.
How much rain does Westbury get?
About 888 mm (35 in) a year, more than 68% of UK towns. November is the wettest month (101 mm) and May the driest (58 mm).
How sunny is it?
The nearest Met Office station with a sunshine record, Yeovilton (26 miles away), averages 1,524 hours of bright sunshine a year. Sunshine isn’t on the town grid, so this is the station’s figure.
Where do these figures come from?
The Met Office’s HadUK-Grid 1991–2020 averages, which turn thousands of weather stations into a map of the UK in 2 km squares; the page reads the squares inside Westbury. They are 30-year averages, not a forecast.
Contains Met Office data © Crown copyright 2026, Open Government Licence v3.0. HadUK-Grid 1991–2020 averages via the Met Office Climate Data Portal; station averages from Met Office historic station data. Today’s forecast for Westbury →
Contains public sector information licensed under the Open Government Licence v3.0. Contains HM Land Registry data © Crown copyright and database right 2026. Contains OS data © Crown copyright and database right 2026 (ONS boundaries). Northern Ireland: Source: NISRA; contains Land & Property Services data and Ordnance Survey of Northern Ireland information, © Crown copyright, licensed under the Open Government Licence v3.0. Scotland: contains National Records of Scotland data, Registers of Scotland data and SEPA data, © Crown copyright / © SEPA 2025, licensed under the Open Government Licence v3.0.