Photo: Ian Hawfinch · CC BY-SA 2.0Rainfall in Glasgow tops that of 86% of UK towns: 1,131 mm (45 in) a year
Peak summer warmth arrives in July, with afternoons near 19.5°C (67°F). Summers stay cool: July afternoons here are cooler than in 84% of UK towns. Seasons differ by 18°C, from the coldest nights to the warmest afternoons. Warm coats and heating bills mark the months from October to April, when means dip under 10°C.
Met Office 1991–2020 averages for the town itself.
A year in Glasgow at a glance
Each month’s typical high and low, in °C.
What a year in Glasgow feels like
Typical highs and lows by season and by month, from the Met Office’s 1991–2020 averages.
About 1,131 mm of rain a year
December is the wettest month and April the driest. About 32 days a year bring 10 mm (0.4 in) or more.
Rain by month
Millimetres
Sunshine by month
Hours of bright sunshine at Paisley
44 air frosts and 4 days of 25°C a year
On about 44 nights a year the air drops below freezing, and on about under 1 days it stays below freezing all day. About 4 days a year reach 25°C (77°F).
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.
The Met Office station at Paisley
Paisley is 6.5 miles west of Glasgow, 32 m (105 ft) above sea level. It is the nearest of the 37 long-running stations the Met Office publishes in full.
| Month | High | Low | Rain | Air frosts | Sun (hours) |
|---|---|---|---|---|---|
| January | 7.1°C | 1.9°C | 147 mm | 8.5 | 39 |
| February | 7.8°C | 2.1°C | 111 mm | 7.3 | 69 |
| March | 9.9°C | 3.2°C | 100 mm | 4.3 | 103 |
| April | 12.9°C | 5.1°C | 72 mm | 0.9 | 133 |
| May | 16.1°C | 7.4°C | 63 mm | 0.1 | 184 |
| June | 18.3°C | 10.2°C | 67 mm | 0.0 | 161 |
| July | 19.7°C | 12.1°C | 76 mm | 0.0 | 149 |
| August | 19.5°C | 11.9°C | 90 mm | 0.0 | 151 |
| September | 16.7°C | 9.9°C | 99 mm | 0.0 | 116 |
| October | 12.9°C | 6.8°C | 134 mm | 0.9 | 89 |
| November | 9.6°C | 4.3°C | 133 mm | 3.6 | 54 |
| December | 6.8°C | 1.5°C | 136 mm | 9.7 | 36 |
| Year | 13.1°C | 6.4°C | 1,229 mm | 35 | 1,282 |
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.
How Glasgow 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 Glasgow City towns that size.
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.
| Town | July high | January low | Rain a year |
|---|---|---|---|
| Glasgow | 19.5°C | 1.7°C | 1,131 mm |
| Rutherglen 3.5 mi | 19.3°C about the same | 1.9°C about the same | 1,102 mm |
| Bishopbriggs 3.9 mi | 19.2°C about the same | 1.2°C about the same | 1,223 mm |
| Netherlee 3.9 mi | 19.0°C about the same | 1.2°C about the same | 1,299 mm |
| Giffnock 4.0 mi | 19.0°C about the same | 1.2°C about the same | 1,299 mm |
| Thornliebank 4.2 mi | 19.0°C about the same | 1.2°C about the same | 1,316 mm |
| Stamperland 4.5 mi | 19.0°C about the same | 1.2°C about the same | 1,299 mm |
Glasgow weather by month
Average daily high and low, mean temperature and rain, 1991–2020, for the town itself (the Met Office’s HadUK-Grid).
| Month | High | Low | Mean | Rain |
|---|---|---|---|---|
| January | 7.0°C 45°F | 1.7°C 35°F | 4.3°C | 121 mm 4.8 in |
| February | 7.7°C 46°F | 1.7°C 35°F | 4.7°C | 99 mm 3.9 in |
| March | 9.6°C 49°F | 2.8°C 37°F | 6.2°C | 85 mm 3.4 in |
| April | 12.5°C 54°F | 4.6°C 40°F | 8.5°C | 62 mm 2.4 in |
| May | 15.6°C 60°F | 6.9°C 44°F | 11.3°C | 67 mm 2.6 in |
| June | 18.0°C 64°F | 9.9°C 50°F | 13.9°C | 69 mm 2.7 in |
| July | 19.5°C 67°F | 11.6°C 53°F | 15.5°C | 84 mm 3.3 in |
| August | 19.1°C 66°F | 11.5°C 53°F | 15.2°C | 91 mm 3.6 in |
| September | 16.7°C 62°F | 9.5°C 49°F | 13.0°C | 89 mm 3.5 in |
| October | 13.0°C 55°F | 6.5°C 44°F | 9.7°C | 121 mm 4.7 in |
| November | 9.4°C 49°F | 3.6°C 39°F | 6.6°C | 114 mm 4.5 in |
| December | 7.1°C 45°F | 1.6°C 35°F | 4.3°C | 128 mm 5.1 in |
| Year | 12.9°C | 6.0°C | 9.4°C | 1,131 mm |
Where Glasgow’s numbers come from
Averages over 30 years, not a forecast.
- Mean temperature, rain and day counts: HadUK-Grid 1991–2020 averages for the 38 Met Office 2 km grid squares whose centre lies inside Glasgow’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, 6.5 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 Glasgow’s climate
How warm does Glasgow get in summer?
July is the warmest month, with average highs of 19.5°C (67°F). About 4 days a year reach 25°C (77°F), fewer than 82% of UK towns.
How cold does Glasgow get in winter?
December nights average 1.6°C (35°F). The air drops below freezing on about 44 nights a year, and about under 1 days a year stay below freezing all day.
How much rain does Glasgow get?
About 1,131 mm (45 in) a year, more than 86% of UK towns. December is the wettest month (128 mm) and April the driest (62 mm).
How sunny is it?
The nearest Met Office station with a sunshine record, Paisley (6.5 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 Glasgow. 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 Glasgow →
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