Climate averages 1991–2020
Glasgow weather
in August.
A mild, wet month: the 2nd warmest and the 8th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
August is a mild month in Glasgow: daytime highs average 17.2°C and nights cool to about 10.9°C. By daytime temperature it is the 2nd warmest of the 12 months.
Expect about 101 mm of rain on roughly 16 days, which makes August a wet month (the 8th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 15 h 05 min on an average August day.
The nearest other city in this atlas is Paisley (12 km away). In August its highs average 17.2°C, about as warm as Glasgow, with 105 mm of rain.
Among the 143 cities listed in the United Kingdom, Glasgow ranks joint 139th of 143 for the warmest August highs and joint 134th of 143 for the driest August (rainfall, lowest first). The mean August high of those 143 cities is 19.7°C; Glasgow is 2.5°C cooler than that mean.
From August to September, average highs fall by 2.1°C to 15.1°C, and monthly rainfall falls from 101 mm to 83 mm.
The annual picture
August in context
Monthly rainfall
Average total · mmAverages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated
Every month, side by side
Glasgow climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 5.8°C1.4°C | 1.4°C | 116 | 16.7 | 7.78 h |
| February | 6.4°C1.3°C | 1.3°C | 98 | 14.5 | 9.510 h |
| March | 8.1°C2.1°C | 2.1°C | 87 | 14.5 | 11.812 h |
| April | 10.7°C3.6°C | 3.6°C | 74 | 13.8 | 14.114 h |
| May | 13.7°C6.3°C | 6.3°C | 79 | 13.6 | 16.316 h |
| June | 16.0°C9.4°C | 9.4°C | 86 | 14.2 | 17.517 h |
| July | 17.5°C11.1°C | 11.1°C | 92 | 15.5 | 16.917 h |
| August, selected | 17.2°C10.9°C | 10.9°C | 101 | 15.7 | 15.115 h |
| September | 15.1°C9.2°C | 9.2°C | 83 | 13.3 | 12.813 h |
| October | 11.7°C6.4°C | 6.4°C | 110 | 15.5 | 10.510 h |
| November | 8.3°C3.6°C | 3.6°C | 105 | 15.9 | 8.38 h |
| December | 5.9°C1.4°C | 1.4°C | 115 | 15.8 | 7.17 h |
Rainfall is the average of the 30 separate monthly totals. A rain day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.
Compare places
August in nearby cities
- Paisley in AugustUnited Kingdom · 12 kmHigh 17.2°C · Low 11.1°C · 105 mm rain
- East Kilbride in AugustUnited Kingdom · 12 kmHigh 16.6°C · Low 10.2°C · 101 mm rain
- Edinburgh in AugustUnited Kingdom · 67 kmHigh 17.4°C · Low 11.4°C · 75 mm rain
- Dundee, United Kingdom in AugustUnited Kingdom · 104 kmHigh 17.3°C · Low 11.0°C · 76 mm rain
- Carlisle in AugustUnited Kingdom · 136 kmHigh 17.8°C · Low 11.2°C · 88 mm rain
- Belfast in AugustUnited Kingdom · 176 kmHigh 17.3°C · Low 12.6°C · 81 mm rain
- Lisburn in AugustUnited Kingdom · 187 kmHigh 17.4°C · Low 12.1°C · 81 mm rain
- Douglas in AugustIsle of Man · 191 kmHigh 16.0°C · Low 14.0°C · 78 mm rain
Read the numbers correctly
Climate, not a promise.
These patterns help compare months. They cannot tell you the weather on a specific day of your trip.
Sources, method and limitsHow these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for Glasgow) is explained once on the Glasgow year overview and on the Sources, method and limits page.
East Kilbride lies in the same rainfall cell, so its rainfall figures are identical to these; temperatures differ because they come from smaller 0.1° cells.