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Climate in Ardrossan · Met Office 1991–2020 averages

Ardrossan gets fewer frosts than 95% of UK towns

Midsummer highs settle at about 19.0°C (66°F). The gap between a January night and a July afternoon is 17°C. Summers stay cool: July afternoons here are cooler than in 92% of UK towns. Keep the boiler serviced for the months from November to April, which average under 10°C.

July afternoons: cooler than 92% of UK towns
January nights: milder than 86% of UK towns
Rain a year: wetter than 90% of UK towns

Met Office 1991–2020 averages for the town itself.

A year in Ardrossan at a glance

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

Jan8°C3°C
Feb8°C2°CColdest nights
Mar10°C3°C
Apr13°C5°C
May15°C7°C
Jun18°C10°C
Jul19°C11°CWarmest
Aug19°C11°C
Sep17°C10°C
Oct14°C7°CWettest
Nov now11°C5°C
Dec9°C3°C
A normal year

What a year in Ardrossan 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 · 20 air frosts a year
Spring
13°C / 5°C
55°F / 41°F · 231 mm of rain
Summer
18°C / 11°C
65°F / 51°F · 1 days of 25°C+ a year
Autumn
14°C / 7°C
57°F / 45°F · 361 mm of rain, the wettest season
Best months to be outsideJunJulAugHighs of 17–27°C (63–81°F) and nights of 8°C (46°F) or more
Rain

About 1,204 mm of rain a year

October is the wettest month and May the driest. About 33 days a year bring 10 mm (0.4 in) or more. 7th wettest of 11 North Ayrshire towns of 2,500+.

1,204 mm
Rain a year (47 in)
Wetter than 90% of UK towns
33
Days a year with 10 mm of rain or more
1,282 hrs
Sunshine a year at Paisley
20 miles away

Rain by month

Millimetres

133 mm
JFMAMJJASOND

Sunshine by month

Hours of bright sunshine at Paisley

184 h
JFMAMJJASOND
Frost & warm days

20 air frosts and 1 days of 25°C a year

On about 20 nights a year the air drops below freezing; days that stay below freezing are rare. About 1 days a year reach 25°C (77°F).

20
Air frosts a year (below 0°C)
Fewer frosts than 95% of UK towns
under 1
Days that stay below 0°C
1
Days of 25°C (77°F) or more
Fewer warm days than 97% 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 Paisley

Paisley is 20 miles north-east of Ardrossan, 32 m (105 ft) above sea level. It is the nearest of the 37 long-running stations the Met Office publishes in full.

MonthHighLowRainAir frostsSun (hours)
January7.1°C1.9°C147 mm8.539
February7.8°C2.1°C111 mm7.369
March9.9°C3.2°C100 mm4.3103
April12.9°C5.1°C72 mm0.9133
May16.1°C7.4°C63 mm0.1184
June18.3°C10.2°C67 mm0.0161
July19.7°C12.1°C76 mm0.0149
August19.5°C11.9°C90 mm0.0151
September16.7°C9.9°C99 mm0.0116
October12.9°C6.8°C134 mm0.989
November9.6°C4.3°C133 mm3.654
December6.8°C1.5°C136 mm9.736
Year13.1°C6.4°C1,229 mm351,282

Met Office historic station data, Paisley, 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 Ardrossan 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 North Ayrshire towns that size.

July afternoons19.0°C (66°F)
Cooler than 92% of UK towns9th warmest of 11 North Ayrshire towns
January nights2.6°C (37°F)
Milder than 86% of UK towns3rd mildest of 11 North Ayrshire towns
Rain a year1,204 mm (47 in)
Wetter than 90% of UK towns7th wettest of 11 North Ayrshire towns
Air frosts a year20 nights
Fewer frosts than 95% of UK towns11th frostiest of 11 North Ayrshire towns
Days of 25°C or more1 days
Fewer warm days than 97% of UK towns10th most 25°C days of 11 North Ayrshire 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
Ardrossan19.0°C2.6°C1,204 mm
Saltcoats 1.0 mi19.0°C about the same2.6°C about the same1,161 mm
Stevenston 2.2 mi19.3°C about the same2.5°C about the same1,145 mm
West Kilbride 3.4 mi19.0°C about the same2.2°C about the same1,246 mm
Kilwinning 4.0 mi19.2°C about the same2.1°C about the same1,212 mm
Dalry 5.2 mi19.3°C about the same1.5°C 1.0°C colder1,568 mm
Irvine 6.5 mi19.2°C about the same2.3°C about the same1,141 mm
Month by month

Ardrossan 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
January8.1°C 47°F2.6°C 37°F5.3°C119 mm 4.7 in
February8.4°C 47°F2.4°C 36°F5.5°C100 mm 4.0 in
March9.9°C 50°F3.2°C 38°F6.5°C93 mm 3.7 in
April12.5°C 55°F4.6°C 40°F8.5°C70 mm 2.7 in
May15.5°C 60°F6.9°C 44°F11.2°C68 mm 2.7 in
June17.6°C 64°F9.6°C 49°F13.6°C71 mm 2.8 in
July19.0°C 66°F11.4°C 52°F15.2°C92 mm 3.6 in
August18.9°C 66°F11.3°C 52°F15.1°C105 mm 4.1 in
September16.8°C 62°F9.9°C 50°F13.4°C98 mm 3.9 in
October13.8°C 57°F7.3°C 45°F10.5°C133 mm 5.3 in
November10.8°C 51°F4.9°C 41°F7.8°C129 mm 5.1 in
December8.6°C 47°F2.8°C 37°F5.8°C126 mm 5.0 in
Year13.3°C6.4°C9.9°C1,204 mm
Sources

Where Ardrossan’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 Ardrossan’s locality.
  • 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 Paisley, 20 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 Ardrossan’s climate

How warm does Ardrossan get in summer?

July is the warmest month, with average highs of 19.0°C (66°F). About 1 days a year reach 25°C (77°F), fewer than 97% of UK towns.

How cold does Ardrossan get in winter?

February nights average 2.4°C (36°F). The air drops below freezing on about 20 nights a year, and about under 1 days a year stay below freezing all day.

How much rain does Ardrossan get?

About 1,204 mm (47 in) a year, more than 90% of UK towns. October is the wettest month (133 mm) and May the driest (68 mm).

How sunny is it?

The nearest Met Office station with a sunshine record, Paisley (20 miles away), averages 1,282 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 Ardrossan. 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 Ardrossan →

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.