United Kingdom
Glasgow in September: weather & travel advice
This month's data profile
Rain shapes the decision
Glasgow in September is climatically mixed. The average daily high is around 15 °C. With about 18 rainy days it is very wet.
Historical monthly averages, not a weather forecast. Individual days and years can differ substantially.
Rank among 12 monthly averages
37/100 · #5
Warmth
#4
Dryness
#3
Sun
#6
Published best categories: none
Glasgow · SeptemberPhoto: TomZoy · CC BY-SA 4.0Climate facts
- Average high
- 15 °C
- Average low
- 8 °C
- Rainy days (est.)
- 18 rainy days (est.)
- Sun (est.)
- 3 h/day
- Humidity
- 89 %
Climate evidence with direct month comparison
The highlighted row is the selected month. Precipitation total and rainy days are separate monthly averages.
| Month | Avg high °C | Avg low °C | Rainy days (est.) | Precipitation mm | Sun h/day (est.) | Humidity % | Wind m/s | Score |
|---|---|---|---|---|---|---|---|---|
| August | 17 | 10 | 20 | 120 | 4.3 | 87 | 3.1 | 43 |
| September (selected) | 15 | 8 | 18 | 105 | 3.0 | 89 | 3.4 | 37 |
| October | 11 | 6 | 20 | 142 | 1.6 | 92 | 3.7 | 22 |
How do the previous and next months compare?
Baseline: September (37/100)
Positive and negative values show the change from the selected month.
| Score Δ | Average high Δ | Average low Δ | Rainy days Δ | Rain Δ | Sun Δ | Humidity Δ | Wind Δ | |
|---|---|---|---|---|---|---|---|---|
| August | +6 | +2.2 °C | +1.7 °C | +2.6 | +14.6 mm | +1.3 h | -2.1 % | -0.3 m/s |
| October | -15 | -3.7 °C | -2.4 °C | +2.7 | +36.6 mm | -1.4 h | +3 % | +0.3 m/s |
All twelve months in context
Find a place to stay
Where to stay in Glasgow
Compare available stays, prices and cancellation terms for Glasgow on Booking.com.
Booking.comFind places to stayAffiliate link: there is no extra cost to you.
Useful next decisions
Frequently asked questions
How warm is Glasgow in September?
The average daily high is around 15 °C, with an average daily low of about 8 °C.
Does it rain a lot in Glasgow in September?
The curated estimate is about 18 rainy days per month, not a directly measured long-term average. Total precipitation averages around 105 mm for the month. A rainy day does not mean all-day rain.
When is the best time to visit Glasgow?
No month in Glasgow reaches the threshold for a clear recommendation in the climate score; the month comparison above shows the differences.