Photo: Roger A Smith · CC BY-SA 2.0Frosty mornings in Burnham-on-Sea are scarcer than in 94% of UK towns
Sunny July days climb to about 22.1°C (72°F). By July afternoons alone, it runs hotter than 67% of UK towns. Expect the heaviest rain in November and the lightest in March. 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 Burnham-on-Sea at a glance
Each month’s typical high and low, in °C.
What a year in Burnham-on-Sea feels like
Typical highs and lows by season and by month, from the Met Office’s 1991–2020 averages.
About 781 mm of rain a year
November is the wettest month and March the driest. About 19 days a year bring 10 mm (0.4 in) or more. 42nd wettest of 49 Somerset towns of 2,500+.
Rain by month
Millimetres
22 air frosts and 8 days of 25°C a year
On about 22 nights a year the air drops below freezing; days that stay below freezing are rare. About 8 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 Cardiff Bute Park
Cardiff Bute Park is 19 miles north-west of Burnham-on-Sea, 9 m (30 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 |
|---|---|---|---|---|
| January | 8.6°C | 2.5°C | 127 mm | 8.1 |
| February | 9.1°C | 2.5°C | 93 mm | 7.5 |
| March | 11.3°C | 3.9°C | 85 mm | 3.9 |
| April | 14.4°C | 5.7°C | 72 mm | 1.4 |
| May | 17.4°C | 8.5°C | 78 mm | 0.0 |
| June | 20.1°C | 11.3°C | 73 mm | 0.0 |
| July | 21.8°C | 13.1°C | 84 mm | 0.0 |
| August | 21.4°C | 12.9°C | 105 mm | 0.0 |
| September | 19.1°C | 10.7°C | 87 mm | 0.0 |
| October | 15.2°C | 8.0°C | 128 mm | 1.0 |
| November | 11.6°C | 4.9°C | 131 mm | 3.7 |
| December | 9.1°C | 2.9°C | 140 mm | 8.3 |
| Year | 14.9°C | 7.2°C | 1,201 mm | 34 |
Met Office historic station data, Cardiff Bute Park, 1991–2020 months averaged (a month needs 20 of the 30 years; estimated values counted, missing months left out). Sunshine: Campbell-Stokes recorder.
How Burnham-on-Sea 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 |
|---|---|---|---|
| Burnham-on-Sea | 22.1°C | 2.9°C | 781 mm |
| Highbridge 1.2 mi | 22.1°C about the same | 2.8°C about the same | 779 mm |
| Berrow and Brean 2.9 mi | 22.2°C about the same | 3.2°C about the same | 821 mm |
| Puriton 4.8 mi | 22.1°C about the same | 3.0°C about the same | 788 mm |
| Woolavington 5.4 mi | 22.1°C about the same | 2.7°C about the same | 736 mm |
| Cannington 6.7 mi | 21.9°C about the same | 2.9°C about the same | 792 mm |
| Hutton 6.7 mi | 22.4°C about the same | 2.4°C 0.6°C colder | 882 mm |
Burnham-on-Sea 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 | 5.9°C | 78 mm 3.1 in |
| February | 9.3°C 49°F | 2.8°C 37°F | 6.0°C | 53 mm 2.1 in |
| March | 11.5°C 53°F | 3.9°C 39°F | 7.7°C | 50 mm 2.0 in |
| April | 14.3°C 58°F | 5.3°C 41°F | 9.8°C | 52 mm 2.1 in |
| May | 17.5°C 64°F | 8.0°C 46°F | 12.7°C | 52 mm 2.1 in |
| June | 20.2°C 68°F | 11.0°C 52°F | 15.6°C | 56 mm 2.2 in |
| July | 22.1°C 72°F | 12.8°C 55°F | 17.4°C | 62 mm 2.4 in |
| August | 21.8°C 71°F | 12.9°C 55°F | 17.4°C | 73 mm 2.9 in |
| September | 19.5°C 67°F | 10.8°C 51°F | 15.2°C | 60 mm 2.3 in |
| October | 15.7°C 60°F | 8.4°C 47°F | 12.0°C | 81 mm 3.2 in |
| November | 11.9°C 53°F | 5.5°C 42°F | 8.7°C | 86 mm 3.4 in |
| December | 9.3°C 49°F | 3.3°C 38°F | 6.3°C | 79 mm 3.1 in |
| Year | 15.2°C | 7.3°C | 11.2°C | 781 mm |
Where Burnham-on-Sea’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 Burnham-on-Sea’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 Cardiff Bute Park, 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 Burnham-on-Sea’s climate
How warm does Burnham-on-Sea get in summer?
July is the warmest month, with average highs of 22.1°C (72°F). About 8 days a year reach 25°C (77°F), fewer than 61% of UK towns.
How cold does Burnham-on-Sea get in winter?
February nights average 2.8°C (37°F). The air drops below freezing on about 22 nights a year, and about under 1 days a year stay below freezing all day.
How much rain does Burnham-on-Sea get?
About 781 mm (31 in) a year, more than 51% of UK towns. November is the wettest month (86 mm) and March the driest (50 mm).
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 Burnham-on-Sea. 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 Burnham-on-Sea →
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