Glasgow weather in September
Temperature, rain and sunshine in September: long-term averages from 30 years of weather data, not a forecast.
Holiday weather in September
Fair
Best time to visit: July
What is the weather like in Glasgow in September?
In September, Glasgow is cool: daytime highs average 16 °C, and nights cool down to about 10 °C. The sun is scarce, with only about 4 hours a day. It rains often – on about 14 days, adding up to 93 mm. All in all, September is a so-so month for a holiday in Glasgow.
September compared
How the weather changes from August to October. Tap a month to open it.
| AugustAug | SeptemberSep | OctoberOct | |
|---|---|---|---|
| Score | 55 | 48 | 23 |
| Day | 18° | 16° | 12° |
| Night | 11° | 10° | 7° |
| Sun | 5 h | 4 h | 3 h |
| Rain days | 17 | 14 | 17 |
More details for September
- Daylight
- 12 h 51 min06:47 – 19:38
- UV index
- 3 · moderateclear sky, noon (estimate)All months
- Muggy days
- 0 daysdew point 18 °C or moreAll months
- Wind
- 20 km/haverage daily peakAll months
- Cloud cover
- 75 %on averageAll months
- Hot days
- 0 days30 °C or more
- Snow days
- 0 days1 cm or more of fresh snowAll months
- Time zone
- UTC+1Europe/London
How the score comes together
- Temperatureweight 50 %75 %
- Sunshineweight 20 %10 %
- Few rainy daysweight 30 %29 %
Each factor is rated from 0 to 100 % and weighted for the travel style “City break”.
What to pack in September
- A jumper for the evenings
- Rain jacket or umbrella
Glasgow in September: quick answers
Is Glasgow hot in September?
No. In September, Glasgow is cool: daytime highs average 16 °C and nights drop to about 10 °C.
Does it rain much in Glasgow in September?
It rains often – on about 14 days, adding up to 93 mm.
Glasgow month by month
The whole year in GlasgowAll destinations: United KingdomWhere to go in September
Climate averages 1996–2025, not a forecast. Data: Copernicus ERA5 / ERA5-Land via Open-Meteo.com (CC BY 4.0), NOAA OISST, WMO 1991–2020 (NOAA NCEI), GeoNames (CC BY 4.0). Sources & licences