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Climate in Deal · Met Office 1991–2020 averages

Deal is among the least frosty of UK towns

Expect July afternoons of about 21.9°C (71°F). By warm days alone, it ranks cooler than 67% of UK towns. The gap between a January night and a July afternoon is 20°C. The heating season runs November to April: each of those months averages under 10°C.

July afternoons: warmer than 60% of UK towns
January nights: milder than 93% of UK towns
Rain a year: drier than 53% of UK towns

Met Office 1991–2020 averages for the town itself.

A year in Deal at a glance

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

Jan8°C3°C
Feb8°C2°CColdest nights
Mar11°C4°C
Apr13°C5°C
May17°C8°C
Jun19°C11°C
Jul22°C13°C
Aug22°C13°CWarmest
Sep19°C12°C
Oct16°C9°C
Nov now12°C6°CWettest
Dec9°C3°C
A normal year

What a year in Deal feels like

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

Winter
8°C / 3°C
47°F / 37°F · 17 air frosts a year
Spring
14°C / 6°C
56°F / 42°F · 134 mm of rain
Summer
21°C / 12°C
70°F / 54°F · 7 days of 25°C+ a year
Autumn
16°C / 9°C
60°F / 48°F · 245 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 757 mm of rain a year

November is the wettest month and March the driest. About 20 days a year bring 10 mm (0.4 in) or more. 19th wettest of 87 Kent towns of 2,500+.

757 mm
Rain a year (30 in)
Drier than 53% of UK towns
20
Days a year with 10 mm of rain or more
1,793 hrs
Sunshine a year at Manston
9.3 miles away

Rain by month

Millimetres

96 mm
JFMAMJJASOND

Sunshine by month

Hours of bright sunshine at Manston

236 h
JFMAMJJASOND
Frost & warm days

17 air frosts and 7 days of 25°C a year

On about 17 nights a year the air drops below freezing, and on about under 1 days it stays below freezing all day. About 7 days a year reach 25°C (77°F).

17
Air frosts a year (below 0°C)
Fewer frosts than 97% of UK towns
under 1
Days that stay below 0°C
7
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 Manston

Manston is 9.3 miles north of Deal, 49 m (161 ft) above sea level. It is the nearest of the 37 long-running stations the Met Office publishes in full.

MonthHighLowRainAir frostsSun (hours)
January7.6°C2.5°C51 mm5.964
February8.0°C2.4°C41 mm5.882
March10.3°C3.9°C37 mm2.7130
April13.2°C5.8°C38 mm0.6191
May16.3°C8.7°C50 mm0.0224
June19.5°C11.4°C43 mm0.0230
July22.1°C13.7°C47 mm0.0236
August22.2°C14.0°C51 mm0.0214
September19.1°C11.9°C49 mm0.0168
October15.1°C9.1°C74 mm0.2119
November11.0°C5.6°C72 mm1.376
December8.3°C3.2°C63 mm5.159
Year14.4°C7.7°C615 mm221,793

Met Office historic station data, Manston, 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 Deal 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 Kent towns that size.

July afternoons21.9°C (71°F)
Warmer than 60% of UK towns80th warmest of 87 Kent towns
January nights2.9°C (37°F)
Milder than 93% of UK towns4th mildest of 87 Kent towns
Rain a year757 mm (30 in)
Drier than 53% of UK towns19th wettest of 87 Kent towns
Air frosts a year17 nights
Fewer frosts than 97% of UK towns83rd frostiest of 87 Kent towns
Days of 25°C or more7 days
Fewer warm days than 67% of UK towns87th most 25°C days of 87 Kent 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
Deal21.9°C2.9°C757 mm
Kingsdown 2.2 mi21.4°C about the same2.7°C about the same807 mm
Eastry 4.3 mi22.1°C about the same2.3°C 0.6°C colder671 mm
St Margaret's at Cliffe 4.4 mi21.0°C 0.9°C cooler2.5°C about the same756 mm
Sandwich 4.6 mi22.5°C 0.6°C warmer2.5°C about the same658 mm
Eythorne 5.4 mi21.7°C about the same1.8°C 1.1°C colder830 mm
Whitfield 5.8 mi21.3°C 0.6°C cooler1.9°C 1.0°C colder881 mm
Month by month

Deal 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
January8.2°C 47°F2.9°C 37°F5.5°C73 mm 2.9 in
February8.4°C 47°F2.5°C 36°F5.4°C59 mm 2.3 in
March10.5°C 51°F3.8°C 39°F7.2°C43 mm 1.7 in
April13.4°C 56°F5.3°C 41°F9.4°C44 mm 1.7 in
May16.7°C 62°F8.4°C 47°F12.4°C47 mm 1.9 in
June19.5°C 67°F10.8°C 51°F15.2°C55 mm 2.2 in
July21.9°C 71°F13.2°C 56°F17.6°C53 mm 2.1 in
August22.0°C 72°F13.4°C 56°F17.7°C55 mm 2.1 in
September19.4°C 67°F11.6°C 53°F15.5°C56 mm 2.2 in
October15.6°C 60°F9.0°C 48°F12.3°C94 mm 3.7 in
November11.6°C 53°F5.8°C 42°F8.6°C96 mm 3.8 in
December8.7°C 48°F3.2°C 38°F5.9°C85 mm 3.3 in
Year14.6°C7.5°C11.1°C757 mm
Sources

Where Deal’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 Deal’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 Manston, 9.3 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 Deal’s climate

How warm does Deal get in summer?

August is the warmest month, with average highs of 22.0°C (72°F). About 7 days a year reach 25°C (77°F), fewer than 67% of UK towns.

How cold does Deal get in winter?

February nights average 2.5°C (36°F). The air drops below freezing on about 17 nights a year, and about under 1 days a year stay below freezing all day.

How much rain does Deal get?

About 757 mm (30 in) a year, less than 53% of UK towns. November is the wettest month (96 mm) and March the driest (43 mm).

How sunny is it?

The nearest Met Office station with a sunshine record, Manston (9.3 miles away), averages 1,793 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 Deal. 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 Deal →

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.