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Climate in Exminster · Met Office 1991–2020 averages

Exminster has milder winter nights than 92% of UK towns

A typical January night drops to 2.9°C (37°F) and a July afternoon reaches 21.8°C (71°F); 834 mm (33 in) of rain falls in a year. Summers go the other way: only about 9 days a year reach 25°C, fewer than in 67% of UK towns. Rain is plentiful here, more than falls on 67% of UK towns.

July afternoons: warmer than 52% of UK towns
January nights: milder than 92% of UK towns
Rain a year: wetter than 67% of UK towns

A year in Exminster at a glance

Each month’s typical high and low, in °C.

Jan9°C3°C
Feb9°C3°CColdest nights
Mar11°C4°C
Apr14°C5°C
May17°C8°C
Jun20°C11°C
Jul22°C12°CWarmest
Aug22°C12°C
Sep19°C11°C
Oct16°C8°C
Nov now12°C5°CWettest
Dec9°C3°C
A normal year

What a year in Exminster feels like

Typical highs and lows by season and by month, from the Met Office’s 1991–2020 averages.

Winter
9°C / 3°C
49°F / 37°F · 251 mm of rain, the wettest season
Spring
14°C / 6°C
57°F / 42°F · 177 mm of rain
Summer
21°C / 12°C
70°F / 53°F · 9 days of 25°C+ a year
Autumn
16°C / 8°C
60°F / 46°F · 245 mm of rain
Best months to be outsideJunJulAugSepHighs of 17–27°C (63–81°F) and nights of 8°C (46°F) or more
Rain

About 834 mm of rain a year

November is the wettest month and July the driest. About 24 days a year bring 10 mm (0.4 in) or more. 44th wettest of 47 Devon towns of 2,500+.

834 mm
Rain a year (33 in)
Wetter than 67% of UK towns
24
Days a year with 10 mm of rain or more

Rain by month

Millimetres

100 mm
JFMAMJJASOND
Frost & warm days

32 air frosts and 9 days of 25°C a year

On about 32 nights a year the air drops below freezing; days that stay below freezing are rare. About 9 days a year reach 25°C (77°F).

32
Air frosts a year (below 0°C)
Fewer frosts than 81% of UK towns
under 1
Days that stay below 0°C
9
Days of 25°C (77°F) or more
Fewer warm days than 67% of UK towns

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.

Weather station

The Met Office station at Chivenor

Chivenor is 40 miles north-west of Exminster, 6 m (20 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.

MonthHighLowRainAir frosts
January9.1°C3.6°C91 mm5.4
February9.4°C3.4°C70 mm5.0
March11.2°C4.5°C60 mm2.6
April13.7°C5.9°C56 mm0.9
May16.5°C8.6°C55 mm0.0
June19.0°C11.4°C68 mm0.0
July20.7°C13.3°C74 mm0.0
August20.5°C13.4°C77 mm0.0
September18.8°C11.5°C70 mm0.0
October15.4°C9.1°C107 mm0.4
November12.1°C6.2°C106 mm1.8
December9.9°C4.3°C107 mm4.6
Year14.7°C7.9°C941 mm21

Met Office historic station data, Chivenor, 1991–2020 months averaged (a month needs 20 of the 30 years; estimated values counted, missing months left out). Sunshine: Campbell-Stokes recorder.

Compared with other towns

How Exminster compares

Against the 2,178 towns and cities of 2,500 or more in England and Wales, each with its own Met Office averages, and its place among Devon towns that size.

July afternoons21.8°C (71°F)
Warmer than 52% of UK townsThe warmest of 47 Devon towns
January nights2.9°C (37°F)
Milder than 92% of UK towns32nd mildest of 47 Devon towns
Rain a year834 mm (33 in)
Wetter than 67% of UK towns44th wettest of 47 Devon towns
Air frosts a year32 nights
Fewer frosts than 81% of UK towns11th frostiest of 47 Devon towns
Days of 25°C or more9 days
Fewer warm days than 67% of UK towns4th most 25°C days of 47 Devon towns
Next door

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.

TownJuly highJanuary lowRain a year
Exminster21.8°C2.9°C834 mm
Topsham 1.3 mi21.8°C about the same2.9°C about the same834 mm
Clyst St Mary 2.8 mi21.8°C about the same2.8°C about the same825 mm
Exton 2.8 mi21.7°C about the same2.9°C about the same866 mm
Exeter 3.2 mi21.6°C about the same2.8°C about the same873 mm
Lympstone 3.7 mi21.7°C about the same3.1°C about the same867 mm
Woodbury 4.2 mi21.2°C 0.6°C cooler2.8°C about the same866 mm
Month by month

Exminster weather by month

Average daily high and low, mean temperature and rain, 1991–2020, for the town itself (the Met Office’s HadUK-Grid).

MonthHighLowMeanRain
January9.1°C 48°F2.9°C 37°F6.0°C91 mm 3.6 in
February9.3°C 49°F2.7°C 37°F6.0°C65 mm 2.6 in
March11.3°C 52°F3.9°C 39°F7.6°C64 mm 2.5 in
April14.1°C 57°F5.3°C 42°F9.6°C62 mm 2.5 in
May16.9°C 62°F7.7°C 46°F12.3°C51 mm 2.0 in
June19.9°C 68°F10.6°C 51°F15.2°C54 mm 2.1 in
July21.8°C 71°F12.3°C 54°F17.0°C47 mm 1.8 in
August21.6°C 71°F12.3°C 54°F16.9°C60 mm 2.3 in
September19.2°C 67°F10.6°C 51°F14.9°C57 mm 2.2 in
October15.6°C 60°F8.2°C 47°F11.9°C89 mm 3.5 in
November12.1°C 54°F5.1°C 41°F8.6°C100 mm 3.9 in
December9.4°C 49°F3.4°C 38°F6.3°C95 mm 3.7 in
Year15.0°C7.1°C11.0°C834 mm
Sources

Where Exminster’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 Exminster’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 Chivenor, 40 miles away, months of 1991–2020 averaged.
  • Comparisons: every town and city of 2,500 or more in England and Wales, read the same way.

Met Office HadUK-Grid · Met Office Climate Data Portal · Historic station data. Open Government Licence v3.0.

Questions about Exminster’s climate

How warm does Exminster get in summer?

July is the warmest month, with average highs of 21.8°C (71°F). About 9 days a year reach 25°C (77°F), fewer than 67% of UK towns.

How cold does Exminster get in winter?

February nights average 2.7°C (37°F). The air drops below freezing on about 32 nights a year, and about under 1 days a year stay below freezing all day.

How much rain does Exminster get?

About 834 mm (33 in) a year, more than 67% of UK towns. November is the wettest month (100 mm) and July the driest (47 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 Exminster. 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 Exminster →

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.