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Climate in Wareham · Met Office 1991–2020 averages

Winter nights in Wareham are milder than in 83% of UK towns

A typical January night drops to 2.5°C (37°F) and a July afternoon reaches 22.1°C (72°F); 860 mm (34 in) of rain falls in a year. It is a wet place: more rain falls here than on 71% of UK towns. In July, afternoons here are warmer than in 61% of UK towns.

July afternoons: warmer than 61% of UK towns
January nights: milder than 83% of UK towns
Rain a year: wetter than 71% of UK towns

A year in Wareham at a glance

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

Jan9°C3°CColdest nights
Feb9°C3°C
Mar12°C4°C
Apr14°C5°C
May17°C8°C
Jun20°C10°C
Jul22°C12°CWarmest
Aug22°C12°C
Sep20°C10°C
Oct16°C8°C
Nov now12°C5°CWettest
Dec9°C3°C
A normal year

What a year in Wareham feels like

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

Winter
9°C / 3°C
48°F / 37°F · 38 air frosts a year
Spring
14°C / 5°C
58°F / 42°F · 162 mm of rain
Summer
21°C / 12°C
70°F / 53°F · 13 days of 25°C+ a year
Autumn
16°C / 8°C
60°F / 46°F · 277 mm of rain, the wettest season
Best months to be outsideJunJulAugSepHighs of 17–27°C (63–81°F) and nights of 8°C (46°F) or more
Rain

About 860 mm of rain a year

November is the wettest month and July the driest. About 25 days a year bring 10 mm (0.4 in) or more. 23rd wettest of 32 Dorset towns of 2,500+.

860 mm
Rain a year (34 in)
Wetter than 71% of UK towns
25
Days a year with 10 mm of rain or more
1,690 hrs
Sunshine a year at Hurn (Bournemouth Airport)
14 miles away

Rain by month

Millimetres

111 mm
JFMAMJJASOND

Sunshine by month

Hours of bright sunshine at Hurn (Bournemouth Airport)

221 h
JFMAMJJASOND
Frost & warm days

38 air frosts and 13 days of 25°C a year

On about 38 nights a year the air drops below freezing, and on about under 1 days it stays below freezing all day. About 13 days a year reach 25°C (77°F).

38
Air frosts a year (below 0°C)
Fewer frosts than 64% of UK towns
under 1
Days that stay below 0°C
13
Days of 25°C (77°F) or more
More warm days than 55% 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 Hurn (Bournemouth Airport)

Hurn (Bournemouth Airport) is 14 miles north-east of Wareham, 10 m (33 ft) above sea level. It is the nearest of the 37 long-running stations the Met Office publishes in full.

MonthHighLowRainAir frostsSun (hours)
January8.8°C1.8°C96 mm11.165
February9.1°C1.6°C67 mm10.980
March11.4°C2.8°C62 mm8.3122
April14.2°C4.3°C58 mm4.7178
May17.4°C7.3°C49 mm0.6211
June20.1°C10.2°C54 mm0.0217
July22.3°C12.2°C50 mm0.0221
August22.0°C12.0°C60 mm0.0198
September19.6°C9.6°C69 mm0.0156
October15.6°C7.4°C101 mm2.2108
November11.8°C4.1°C108 mm6.976
December9.2°C2.0°C104 mm11.659
Year15.1°C6.3°C877 mm561,690

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

Compared with other towns

How Wareham 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 Dorset towns that size.

July afternoons22.1°C (72°F)
Warmer than 61% of UK towns15th warmest of 32 Dorset towns
January nights2.5°C (37°F)
Milder than 83% of UK towns13th mildest of 32 Dorset towns
Rain a year860 mm (34 in)
Wetter than 71% of UK towns23rd wettest of 32 Dorset towns
Air frosts a year38 nights
Fewer frosts than 64% of UK towns18th frostiest of 32 Dorset towns
Days of 25°C or more13 days
More warm days than 55% of UK towns14th most 25°C days of 32 Dorset 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
Wareham22.1°C2.5°C860 mm
Sandford 1.2 mi22.1°C about the same2.5°C about the same852 mm
Wool 4.7 mi21.8°C about the same2.6°C about the same952 mm
Lytchett Matravers 4.8 mi22.2°C about the same2.0°C about the same918 mm
Upton 4.9 mi22.0°C about the same2.9°C about the same875 mm
Bere Regis 6.1 mi21.7°C about the same2.2°C about the same990 mm
Corfe Mullen 6.8 mi22.5°C about the same2.2°C about the same945 mm
Month by month

Wareham 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
January8.8°C 48°F2.5°C 37°F5.6°C93 mm 3.7 in
February9.2°C 49°F2.6°C 37°F5.8°C67 mm 2.6 in
March11.6°C 53°F3.7°C 39°F7.6°C57 mm 2.3 in
April14.3°C 58°F4.7°C 40°F9.6°C56 mm 2.2 in
May17.4°C 63°F7.7°C 46°F12.5°C48 mm 1.9 in
June20.1°C 68°F10.5°C 51°F15.2°C51 mm 2.0 in
July22.1°C 72°F12.3°C 54°F17.2°C47 mm 1.8 in
August21.9°C 71°F12.4°C 54°F17.1°C59 mm 2.3 in
September19.5°C 67°F10.4°C 51°F14.9°C65 mm 2.6 in
October15.8°C 60°F8.1°C 47°F11.9°C101 mm 4.0 in
November12.1°C 54°F5.1°C 41°F8.6°C111 mm 4.4 in
December9.5°C 49°F3.1°C 38°F6.3°C105 mm 4.1 in
Year15.2°C6.9°C11.0°C860 mm
Sources

Where Wareham’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 Wareham’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 Hurn, 14 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 Wareham’s climate

How warm does Wareham get in summer?

July is the warmest month, with average highs of 22.1°C (72°F). About 13 days a year reach 25°C (77°F), more than 55% of UK towns.

How cold does Wareham get in winter?

January nights average 2.5°C (37°F). The air drops below freezing on about 38 nights a year, and about under 1 days a year stay below freezing all day.

How much rain does Wareham get?

About 860 mm (34 in) a year, more than 71% of UK towns. November is the wettest month (111 mm) and July the driest (47 mm).

How sunny is it?

The nearest Met Office station with a sunshine record, Hurn (Bournemouth Airport) (14 miles away), averages 1,690 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 Wareham. 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 Wareham →

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.