Winter nights in Mark Causeway are milder than in 93% of UK towns
On a normal July day the thermometer tops out near 22.0°C (72°F). The gap between a January night and a July afternoon is 19°C. In July, afternoons here are warmer than in 63% of UK towns. Warm coats and heating bills mark the months from November to April, when means dip under 10°C.
Met Office 1991–2020 averages for the town itself.
A year in Mark Causeway at a glance
Each month’s typical high and low, in °C.
What a year in Mark Causeway feels like
Typical highs and lows by season and by month, from the Met Office’s 1991–2020 averages.
About 779 mm of rain a year
November is the wettest month and April the driest. About 19 days a year bring 10 mm (0.4 in) or more.
Rain by month
Millimetres
Sunshine by month
Hours of bright sunshine at Yeovilton
28 air frosts and 12 days of 25°C a year
On about 28 nights a year the air drops below freezing; days that stay below freezing are rare. About 12 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 19 miles south-east of Mark Causeway, 20 m (66 ft) above sea level. It is the nearest of the 37 long-running stations the Met Office publishes in full.
| 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 Mark Causeway 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 Somerset 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 |
|---|---|---|---|
| Mark Causeway | 22.0°C | 2.9°C | 779 mm |
| Highbridge 2.4 mi | 22.1°C about the same | 2.8°C about the same | 779 mm |
| Burnham-on-Sea 3.2 mi | 22.1°C about the same | 2.9°C about the same | 781 mm |
| Woolavington 4.0 mi | 22.1°C about the same | 2.7°C about the same | 736 mm |
| Puriton 4.5 mi | 22.1°C about the same | 3.0°C about the same | 788 mm |
| Wedmore 4.6 mi | 21.9°C about the same | 2.4°C about the same | 768 mm |
| Berrow and Brean 5.4 mi | 22.2°C about the same | 3.2°C about the same | 821 mm |
Mark Causeway 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 | 9.0°C 48°F | 2.9°C 37°F | 5.7°C | 73 mm 2.9 in |
| February | 9.2°C 49°F | 2.7°C 37°F | 6.0°C | 61 mm 2.4 in |
| March | 11.5°C 53°F | 3.9°C 39°F | 7.7°C | 57 mm 2.2 in |
| April | 14.4°C 58°F | 5.3°C 42°F | 9.8°C | 47 mm 1.9 in |
| May | 17.6°C 64°F | 8.0°C 46°F | 12.7°C | 49 mm 1.9 in |
| June | 20.1°C 68°F | 11.1°C 52°F | 15.6°C | 56 mm 2.2 in |
| July | 22.0°C 72°F | 12.8°C 55°F | 17.4°C | 68 mm 2.7 in |
| August | 21.8°C 71°F | 12.8°C 55°F | 17.3°C | 75 mm 2.9 in |
| September | 19.3°C 67°F | 10.7°C 51°F | 15.1°C | 53 mm 2.1 in |
| October | 15.7°C 60°F | 8.0°C 46°F | 11.9°C | 78 mm 3.1 in |
| November | 11.9°C 53°F | 5.1°C 41°F | 8.6°C | 87 mm 3.4 in |
| December | 9.4°C 49°F | 3.0°C 37°F | 6.2°C | 77 mm 3.0 in |
| Year | 15.2°C | 7.2°C | 11.1°C | 779 mm |
Where Mark Causeway’s numbers come from
Averages over 30 years, not a forecast.
- Mean temperature, rain and day counts: HadUK-Grid 1991–2020 averages for the Met Office 2 km grid square nearest Mark Causeway’s centre (the town is smaller than one square).
- 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, 19 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 Mark Causeway’s climate
How warm does Mark Causeway get in summer?
July is the warmest month, with average highs of 22.0°C (72°F). About 12 days a year reach 25°C (77°F), more than 57% of UK towns.
How cold does Mark Causeway get in winter?
February nights average 2.7°C (37°F). The air drops below freezing on about 28 nights a year, and about under 1 days a year stay below freezing all day.
How much rain does Mark Causeway get?
About 779 mm (31 in) a year, more than 51% of UK towns. November is the wettest month (87 mm) and April the driest (47 mm).
How sunny is it?
The nearest Met Office station with a sunshine record, Yeovilton (19 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 Mark Causeway. 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 Mark Causeway →
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.