Climate in Glasgow — Annual Weather Overview
Glasgow has a oceanic climate — mild temperatures year-round with regular rainfall. The hottest month is July (average high 18.5°C) and the coolest is December (6.3°C). There is a noticeable seasonal temperature shift of 12.2°C between July and December. Annual rainfall totals around 1337mm. October is the wettest month at 183.4mm, while April averages just 37.8mm. Average daily sunshine is 6.6 hours.
**Spring (March, April, May):** average highs 11.9°C, 210mm rain. **Summer (June, July, August):** average highs 18.4°C, 313mm rain. **Autumn (September, October, November):** average highs 13.1°C, 406mm rain. **Winter (December, January, February):** average highs 6.8°C, 409mm rain.
Glasgow — Monthly Temperatures
Glasgow — Monthly Rainfall
✅ Best months to visit
All year
ℹ️ No months to avoid
Weather in Glasgow stays reasonable all year.
Glasgow weather by month
| Month | High | Low | Rain | Sun/day | Rainy days | Rating |
|---|---|---|---|---|---|---|
| January | 6.6°C | 1.8°C | 120.5mm | 3.1h | 16 | 9/10 |
| February | 7.4°C | 2.4°C | 156.7mm | 4.4h | 19 | 9/10 |
| March | 9.4°C | 2.3°C | 97.2mm | 6.2h | 14 | 10/10 |
| April | 11.7°C | 3.0°C | 37.8mm | 9.2h | 7 | 10/10 |
| May | 14.6°C | 6.7°C | 74.9mm | 9.7h | 15 | 10/10 |
| June | 18.3°C | 10.4°C | 90.6mm | 10.1h | 16 | 10/10 |
| July | 18.5°C | 11.5°C | 115.7mm | 9.8h | 16 | 9/10 |
| August | 18.4°C | 11.3°C | 106.6mm | 9.0h | 15 | 9/10 |
| September | 16.9°C | 9.9°C | 114.2mm | 7.3h | 14 | 9/10 |
| October | 12.7°C | 7.5°C | 183.4mm | 4.7h | 19 | 9/10 |
| November | 9.6°C | 4.5°C | 107.9mm | 3.6h | 17 | 9/10 |
| December | 6.3°C | 1.7°C | 131.5mm | 2.3h | 20 | 9/10 |
For the full verdict on when to go, see the best time to visit Glasgow. Seasonal breakdowns: spring, summer, autumn and winter.
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Frequently Asked Questions
What type of climate does Glasgow have?
Glasgow has a oceanic climate — mild temperatures year-round with regular rainfall. Average highs range from 6.3°C in December to 18.5°C in July.
What is the hottest month in Glasgow?
July is the hottest month in Glasgow, with average highs of 18.5°C and lows of 11.5°C.
What is the coldest month in Glasgow?
December is the coolest month, with average highs of 6.3°C and lows of 1.7°C.
What is the wettest month in Glasgow?
October is the wettest month, averaging 183.4mm of rainfall over around 19 rainy days.
How much rain does Glasgow get per year?
Glasgow receives around 1337mm of rain per year. The driest month is April (37.8mm).
When is the best time to visit Glasgow?
The best time to visit Glasgow is All year. See the full month-by-month guide →
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Trip essentials for Glasgow
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Climate data sourced from Open-Meteo (open source, open data licence). Monthly averages calculated from 2020–2023 historical data. Weather can be unpredictable — always check a live forecast before travelling.