Glasgow climate
Glasgow (Scotland, United Kingdom) has a temperate oceanic climate (Köppen Cfb). The average temperature over the year is 9 °C48 °F, and about 1,380 mm54 in of precipitation falls in an average year.
Temperature by month
Precipitation by month
Glasgow climate table
| Month | High °C°F | Low °C°F | Mean °C°F | Precip. mmin | Frost days |
|---|---|---|---|---|---|
| Jan | 642 | 236 | 439 | 1375.4 | 11 |
| Feb | 643 | 235 | 439 | 1024.0 | 11 |
| Mar | 846 | 236 | 541 | 943.7 | 9 |
| Apr | 1152 | 440 | 846 | 763.0 | 4 |
| May | 1457 | 744 | 1051 | 923.6 | 0 |
| Jun | 1762 | 1050 | 1356 | 1064.2 | 0 |
| Jul | 1865 | 1153 | 1559 | 1224.8 | 0 |
| Aug | 1864 | 1152 | 1458 | 1375.4 | 0 |
| Sep | 1560 | 949 | 1254 | 1064.2 | 0 |
| Oct | 1254 | 745 | 949 | 1435.6 | 1 |
| Nov | 847 | 440 | 644 | 1345.3 | 5 |
| Dec | 643 | 337 | 440 | 1315.2 | 9 |
| Year | 1865 | 235 | 948 | 1,38054 | 50 |
“Year” row: highest monthly high, lowest monthly low, annual mean and annual total. Frost days are for the whole grid cell.
| Month | Humid. | Cloud | Solar | Daylight |
|---|---|---|---|---|
| Jan | 95% | 80% | 0.5 | 7:35 |
| Feb | 94% | 76% | 1.2 | 9:30 |
| Mar | 91% | 75% | 2.3 | 11:39 |
| Apr | 87% | 71% | 3.8 | 14:06 |
| May | 84% | 71% | 4.8 | 16:16 |
| Jun | 85% | 79% | 4.8 | 17:33 |
| Jul | 86% | 79% | 4.5 | 17:00 |
| Aug | 88% | 78% | 3.7 | 15:03 |
| Sep | 90% | 75% | 2.6 | 12:38 |
| Oct | 92% | 76% | 1.4 | 10:17 |
| Nov | 94% | 76% | 0.7 | 8:08 |
| Dec | 95% | 78% | 0.4 | 7:01 |
Humid. = average relative humidity at 2 m; cloud = average cloud amount; solar = average daily solar energy reaching the ground in kWh/m² (all-sky); daylight in hours:minutes, calculated for the 15th of each month.
What the climate of Glasgow is like
The warmest month is July, with an average high of 18 °C65 °F and a low of 11 °C53 °F. The coldest is February, when highs average 6 °C43 °F and lows 2 °C35 °F. There is a clear seasonal cycle, with 11 °C19.8 °F between the average temperature of the warmest and the coolest month.
It is wet, with about 1,380 mm54 in of precipitation per year. Rain is spread fairly evenly through the year. The wettest month is October (143 mm5.6 in), the driest is April (76 mm3.0 in).
Relative humidity ranges from 84% in May to 95% in December. The clearest skies (lowest average cloud amount, 71%) are typical of April. Average wind speed near the ground ranges from 11 km/h (7 mph) in July to 16 km/h (10 mph) in January. Daylight lasts from about 7.0 hours in December to 17.5 hours in June.
A lasting snow cover is typical in February, when the average snow depth in the reanalysis exceeds 10 cm (deepest in February, about 10 cm).
Best time to visit Glasgow
Based on these averages, the most comfortable months for sightseeing and outdoor activities are June and July and September: average highs of 15 °C60 °F to 18 °C65 °F with 106 mm4.2 in to 122 mm4.8 in of precipitation per month.
The most challenging month is January, which is cold, with average highs of 6 °C42 °F.
Comfort score: months are ranked by how close they come to an average high of 21–28 °C (70–82 °F), lows above 5 °C (41 °F), little precipitation and moderate humidity. The best-ranked months of each place are recommended, even where none meets all of these. These are general rules of thumb applied to long-term averages.
What to pack for Glasgow
- Winter (December–February) — highs around 6 °C42 °F, lows 235 to 3 °C37 °F, about 124 mm4.9 in of precipitation a month. Pack a warm coat, layers and closed shoes and an umbrella or light rain jacket.
- Spring (March–May) — highs 846 to 14 °C57 °F, lows 236 to 7 °C44 °F, about 87 mm3.4 in of precipitation a month. Pack a warm coat, layers and closed shoes.
- Summer (June–August) — highs 1762 to 18 °C65 °F, lows 1050 to 11 °C53 °F, about 122 mm4.8 in of precipitation a month. Pack long sleeves, a sweater and a medium jacket and an umbrella or light rain jacket.
- Autumn (September–November) — highs 847 to 15 °C60 °F, lows 440 to 9 °C49 °F, about 127 mm5.0 in of precipitation a month. Pack long sleeves, a sweater and a medium jacket and an umbrella or light rain jacket.
How Glasgow compares
Compared with Dublin, about 309 km to the southwest, Glasgow is on average 1.4 °C2.4 °F cooler and receives 40% more precipitation (1,380 mm54 in vs 983 mm39 in). The difference is largest in December (2.3 °C4.1 °F cooler).
Of the 66 places in the United Kingdom covered by World Climates, Glasgow is the 63rd warmest by annual mean temperature and the wettest by annual precipitation. See all of them on the United Kingdom climate page.
Places in other countries with the most similar temperature and rainfall pattern: Kristiansand (Norway, Cfb), Stavanger (Norway, Cfb) and Limerick (Ireland, Cfb).
Nearby places
- Edinburgh 67 km · 9 °C48 °F · 889 mm35 in
- Dundee 104 km · 8 °C47 °F · 999 mm39 in
- Belfast 176 km · 10 °C50 °F · 1,068 mm42 in
- Isle of Man (Douglas) 191 km · 11 °C51 °F · 1,124 mm44 in
- Newcastle upon Tyne 194 km · 9 °C49 °F · 863 mm34 in
- Aberdeen 194 km · 9 °C49 °F · 907 mm36 in
- Sunderland 211 km · 10 °C49 °F · 783 mm31 in
- Middlesbrough 239 km · 10 °C49 °F · 829 mm33 in
Frequently asked questions
What is the warmest month in Glasgow?
July is the warmest month in Glasgow, with an average high of 18 °C (65 °F) and an average low of 11 °C (53 °F).
What is the coldest month in Glasgow?
February is the coldest month, with an average high of 6 °C (43 °F) and an average low of 2 °C (35 °F).
When does it rain the most in Glasgow?
October is the wettest month with about 143 mm (5.6 in) of precipitation; April is the driest with about 76 mm (3.0 in).
What is the best time to visit Glasgow?
Judging by long-term averages, the most comfortable months are June and July and September.
About this data
All figures are 25-year averages (January 2001 – December 2025) from the NASA POWER project. Temperature, humidity, wind and precipitation come from the MERRA-2 reanalysis (precipitation is the bias-corrected MERRA-2 product), cloud and solar values from CERES satellite data. They describe a grid cell of roughly 50–70 km, not a single weather station, so they can differ from airport records — most of all on coasts, in mountains and for rainfall. Average highs and lows are the monthly mean temperature plus/minus half of the average daily temperature range. Counts of rainy days are not part of this dataset.
The grid cell’s average elevation is 194 m, while Glasgow lies at about 40 m. Temperatures on this page were therefore adjusted by +1 °C1.8 °F using the standard lapse rate of 6.5 °C per 1,000 m.