Glasgow, United Kingdom Climate & Monthly Averages
The climate of Glasgow
Expect mild temperatures year-round with regular rainfall in Glasgow: that is what an oceanic climate means in practice. Highs peak at 65°F (18°C) in July and fall to 43°F (6°C) by January, with 6.6 hours of sun on an average day.
Climate quick facts
- Hottest month: July - highs near 65°F (18°C)
- Coldest month: January - highs near 43°F (6°C)
- Decade extremes (2015-2024): 83°F (29°C) high · 16°F (-9°C) low
- Wettest month: December (19 rainy days) · Sunniest: June (9.9 h sun/day)
- Climate type: oceanic
- Annual swing: 11°C between the average warmest and coolest month · day to night: 6°C
- Snow: about 7 days a year
- Average humidity: 83%
Temperatures through the year
The wettest month is December (5.1 inches (131 mm) across 19 days) and the driest April. January bottoms out at 43°F (6°C) in daylight, 35°F (1°C) after dark. Warmth peaks in July: highs of 65°F (18°C), lows of 52°F (11°C). Across the gridded 2015-2024 daily record, the highest daily maximum for this location was 83°F (29°C) and the lowest daily minimum 16°F (-9°C). Days and nights are about 6°C apart on average - narrower than all but 10% of the 3496 cities in our dataset.
Rain, sun and snow
Relative humidity averages 83% across the year, more humid than 94% of the 3496 cities in our dataset. June is the brightest month at 9.9 hours of sun a day, against an annual average of 6.6 - duller than almost anywhere else we cover. Snow falls on roughly 7 days a year, mostly December through April.
How Glasgow compares
- Glasgow averages 48°F (9°C) across the year - cooler than all but 6% of the 3496 cities we track.
- 29% of the year's precipitation falls in its wettest three months - more evenly spread than all but 9% of the 3496 cities we track.
- Rain or snow reaches the ground on 193 days a year - more wet days than 89% of the 3496 cities we track.
Ranked against every city in our dataset, each measured on the same ten-year window.
Monthly climate table
| Month | High | Low | Rain days | Precipitation | Sunshine | Daylight | Wet-day chance | Humidity |
|---|---|---|---|---|---|---|---|---|
| January | 43° | 35° | 16 | 4.6 in | 3.3 h/day | 7.6 h | 53% | 88% |
| February | 45° | 35° | 17 | 4.8 in | 4.7 h/day | 9.5 h | 60% | 84% |
| March | 48° | 36° | 16 | 4.0 in | 6.1 h/day | 11.6 h | 50% | 82% |
| April | 52° | 38° | 12 | 2.4 in | 8.6 h/day | 14.1 h | 38% | 77% |
| May | 59° | 44° | 14 | 3.2 in | 9.6 h/day | 16.3 h | 47% | 77% |
| June | 63° | 50° | 16 | 3.6 in | 9.9 h/day | 17.5 h | 54% | 77% |
| July | 65° | 52° | 18 | 4.4 in | 9.5 h/day | 17.0 h | 57% | 80% |
| August | 64° | 52° | 19 | 5.1 in | 8.8 h/day | 15.0 h | 61% | 82% |
| September | 61° | 49° | 15 | 3.9 in | 7.2 h/day | 12.6 h | 50% | 83% |
| October | 54° | 45° | 16 | 5.0 in | 5.0 h/day | 10.3 h | 52% | 85% |
| November | 48° | 39° | 16 | 4.2 in | 3.7 h/day | 8.1 h | 52% | 88% |
| December | 45° | 37° | 19 | 5.1 in | 2.3 h/day | 7.0 h | 62% | 89% |
Glasgow month by month
Average high and low for each month, with the bar showing where it sits in Glasgow's year (left is the coldest night, right is the warmest afternoon).
January
- Rain
- 16 days
- Sunshine
- 3.3 h
- Daylight
- 7.6 h
- Snow
- 2 days
February
- Rain
- 17 days
- Sunshine
- 4.7 h
- Daylight
- 9.5 h
- Snow
- 2 days
March
- Rain
- 16 days
- Sunshine
- 6.1 h
- Daylight
- 11.6 h
- Snow
- 1 day
April
- Rain
- 12 days
- Sunshine
- 8.6 h
- Daylight
- 14.1 h
May
- Rain
- 14 days
- Sunshine
- 9.6 h
- Daylight
- 16.3 h
June
- Rain
- 16 days
- Sunshine
- 9.9 h
- Daylight
- 17.5 h
July
- Rain
- 18 days
- Sunshine
- 9.5 h
- Daylight
- 17.0 h
August
- Rain
- 19 days
- Sunshine
- 8.8 h
- Daylight
- 15.0 h
September
- Rain
- 15 days
- Sunshine
- 7.2 h
- Daylight
- 12.6 h
October
- Rain
- 16 days
- Sunshine
- 5.0 h
- Daylight
- 10.3 h
November
- Rain
- 16 days
- Sunshine
- 3.7 h
- Daylight
- 8.1 h
December
- Rain
- 19 days
- Sunshine
- 2.3 h
- Daylight
- 7.0 h
- Snow
- 1 day
Warmer places to go, by month: January · February · March · April · May · June · July · August · September · October · November · December
Seasons in Glasgow
Spring (March through May)
Through spring, Glasgow is brisk and cold: 53°F (12°C) by day, 40°F (4°C) after dark, and rain falls on around 42 of the 90 days.
Summer (June through August)
Through summer, Glasgow runs cool rather than cold: 64°F (18°C) by day, 51°F (11°C) after dark, and rain falls on around 53 of the 90 days.
Fall (September through November)
Through fall, Glasgow is mild: 54°F (12°C) by day, 44°F (7°C) after dark, and rain falls on around 47 of the 90 days.
Winter (December through February)
Through winter, Glasgow is chilly: 44°F (7°C) by day, 35°F (2°C) after dark, and rain falls on around 52 of the 90 days, plus about 5 snowy days. Sun is scarce, averaging 3.4 hours a day.
Climate questions, answered
Is Glasgow hot in summer?
Is Glasgow warmer or cooler than most cities?
How much sun does Glasgow get?
Is Glasgow cold in winter?
What is the average temperature in Glasgow?
Best time to visit Glasgow
The best time to visit Glasgow is generally April to September, when warm days, manageable rainfall and plenty of daylight line up. Daytime temperatures in that window sit near 60°F (16°C), with rain on about 16 days a month. For the same question asked the other way round, see where else is warm in April.
Pack for Glasgow with a warm jacket and layers for the cooler season and proper waterproofs rather than an umbrella - wet days are the norm here. Even in July, lows of 52°F (11°C) make an extra layer worth the space.
Glasgow temperature records (2015-2024)
Derived from ERA5 reanalysis data, 2015–2024. Official station records may differ. Need the precipitation in other units? The mm-to-inches rainfall converter handles it.