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Climate in Stranraer · Met Office 1991–2020 averages

Stranraer sits near the bottom of UK towns for July heat

Midwinter brings lows of about 2.2°C (36°F). Seasons differ by 16°C, from the coldest nights to the warmest afternoons. By rainfall alone, it ranks wetter than 89% of UK towns. The heating season runs November to April: each of those months averages under 10°C.

July afternoons: cooler than 96% of UK towns
January nights: milder than 74% of UK towns
Rain a year: wetter than 89% of UK towns

Met Office 1991–2020 averages for the town itself.

A year in Stranraer at a glance

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

Jan7°C2°C
Feb8°C2°CColdest nights
Mar10°C3°C
Apr12°C4°C
May15°C7°C
Jun17°C9°C
Jul19°C11°CWarmest
Aug19°C11°C
Sep17°C10°C
Oct13°C7°CWettest
Nov now10°C4°C
Dec8°C3°C
A normal year

What a year in Stranraer feels like

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

Winter
8°C / 2°C
46°F / 36°F · 35 air frosts a year
Spring
12°C / 5°C
54°F / 40°F · 229 mm of rain
Summer
18°C / 10°C
65°F / 51°F · 2 days of 25°C+ a year
Autumn
13°C / 7°C
56°F / 45°F · 371 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 1,202 mm of rain a year

October is the wettest month and April the driest. About 36 days a year bring 10 mm (0.4 in) or more. 7th wettest of 10 Dumfries and Galloway towns of 2,500+.

1,202 mm
Rain a year (47 in)
Wetter than 89% of UK towns
36
Days a year with 10 mm of rain or more

Rain by month

Millimetres

140 mm
JFMAMJJASOND
Frost & warm days

35 air frosts and 2 days of 25°C a year

On about 35 nights a year the air drops below freezing; days that stay below freezing are rare. About 2 days a year reach 25°C (77°F).

35
Air frosts a year (below 0°C)
Fewer frosts than 75% of UK towns
under 1
Days that stay below 0°C
2
Days of 25°C (77°F) or more
Fewer warm days than 94% 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 Ballypatrick Forest

Ballypatrick Forest is 49 miles north-west of Stranraer, 156 m (512 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
January7.0°C2.5°C132 mm4.8
February7.2°C2.5°C106 mm4.2
March8.6°C2.9°C97 mm3.8
April10.7°C4.4°C80 mm1.6
May13.4°C6.5°C80 mm0.1
June15.6°C9.1°C86 mm0.0
July17.0°C10.8°C97 mm0.0
August16.9°C10.9°C109 mm0.0
September15.3°C9.6°C100 mm0.0
October12.3°C7.2°C143 mm0.2
November9.2°C4.7°C151 mm1.7
December7.3°C2.9°C146 mm4.3
Year11.7°C6.2°C1,326 mm21

Met Office historic station data, Ballypatrick Forest, 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 Stranraer 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 Dumfries and Galloway towns that size.

July afternoons18.6°C (65°F)
Cooler than 96% of UK towns9th warmest of 10 Dumfries and Galloway towns
January nights2.2°C (36°F)
Milder than 74% of UK townsThe mildest of 10 Dumfries and Galloway towns
Rain a year1,202 mm (47 in)
Wetter than 89% of UK towns7th wettest of 10 Dumfries and Galloway towns
Air frosts a year35 nights
Fewer frosts than 75% of UK towns10th frostiest of 10 Dumfries and Galloway towns
Days of 25°C or more2 days
Fewer warm days than 94% of UK towns10th most 25°C days of 10 Dumfries and Galloway towns
Month by month

Stranraer 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
January7.5°C 45°F2.2°C 36°F4.8°C120 mm 4.7 in
February7.9°C 46°F2.1°C 36°F5.0°C93 mm 3.7 in
March9.5°C 49°F2.9°C 37°F6.2°C89 mm 3.5 in
April12.1°C 54°F4.4°C 40°F8.2°C70 mm 2.7 in
May15.0°C 59°F6.6°C 44°F10.8°C70 mm 2.8 in
June17.3°C 63°F9.4°C 49°F13.3°C75 mm 3.0 in
July18.6°C 65°F11.0°C 52°F14.8°C85 mm 3.4 in
August18.5°C 65°F11.1°C 52°F14.8°C94 mm 3.7 in
September16.6°C 62°F9.5°C 49°F13.0°C94 mm 3.7 in
October13.4°C 56°F7.0°C 45°F10.2°C140 mm 5.5 in
November10.2°C 50°F4.5°C 40°F7.3°C137 mm 5.4 in
December8.0°C 46°F2.6°C 37°F5.3°C135 mm 5.3 in
Year12.9°C6.1°C9.5°C1,202 mm
Sources

Where Stranraer’s numbers come from

Averages over 30 years, not a forecast.

  • Mean temperature, rain and day counts: HadUK-Grid 1991–2020 averages for the 1 Met Office 2 km grid square whose centre lies inside Stranraer’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 Ballypatrick Forest, 49 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 Stranraer’s climate

How warm does Stranraer get in summer?

July is the warmest month, with average highs of 18.6°C (65°F). About 2 days a year reach 25°C (77°F), fewer than 94% of UK towns.

How cold does Stranraer get in winter?

February nights average 2.1°C (36°F). The air drops below freezing on about 35 nights a year, and about under 1 days a year stay below freezing all day.

How much rain does Stranraer get?

About 1,202 mm (47 in) a year, more than 89% of UK towns. October is the wettest month (140 mm) and April the driest (70 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 Stranraer. 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 Stranraer →

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.