Glasgow
September
Weather in Glasgow for September 2025
Your guide to Glasgow weather in September - trends and predictions
In general, the average temperature in Glasgow at the beginning of September is 19.1 °C. As the month progressed, temperatures tended to significantly cool down, reaching an average of 12.4 °C by the end of September.
Glasgow experiences an exceptionally high level of rainfall in September, with more than 20 rainy days on average.
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9
Dry days
21
Rainy days
0
Snow days
16°/9°
Temperatures
20 km/h
Avg max wind
85 %
Avg humidity
Glasgow in September average weather
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| Mon. | Tue. | Wed. | Thu. | Fri. | Sat. | Sun. |
|---|---|---|---|---|---|---|
| 1  17° | 2  18° | 3 16° | 4 17° | 5  21° | 6 22° | 7  23° |
| 8 24° | 9 18° | 10 17° | 11 14° | 12 14° | 13  13° | 14 16° |
| 15 12° | 16 15° | 17  16° | 18 16° | 19 17° | 20 17° | 21 15° |
| 22 15° | 23  14° | 24 13° | 25 12° | 26 12° | 27  12° | 28 13° |
| 29 13° | 30 12° |
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Temperatures trend during September in Glasgow
See the weather trend as well as the moving average line
September weather day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 Sept. | Mist | 17° /7° | 0.2 mm | 4 | |
| 2 Sept. | Sunny | 18° /10° | 4.4 mm | 5 | |
| 3 Sept. | Fog | 16° /8° | 0.7 mm | 4 | |
| 4 Sept. | Mist | 17° /8° | 1.7 mm | 4 | |
| 5 Sept. | Partly cloudy | 21° /8° | 0 mm | 5 | |
| 6 Sept. | Mist | 22° /11° | 0 mm | 6 | |
| 7 Sept. | Patchy rain possible | 23° /12° | 0.2 mm | 6 | |
| 8 Sept. | Partly cloudy | 24° /13° | 1.3 mm | 6 | |
| 9 Sept. | Patchy rain possible | 18° /11° | 1.4 mm | 4 | |
| 10 Sept. | Light rain shower | 17° /9° | 3.6 mm | 4 | |
| 11 Sept. | Patchy rain possible | 14° /7° | 1.5 mm | 4 | |
| 12 Sept. | Partly cloudy | 14° /4° | 0.2 mm | 4 | |
| 13 Sept. | Overcast | 13° /4° | 3.1 mm | 3 | |
| 14 Sept. | Overcast | 16° /8° | 0.9 mm | 4 | |
| 15 Sept. | Fog | 12° /7° | 0.4 mm | 3 | |
| 16 Sept. | Mist | 15° /5° | 0.2 mm | 4 | |
| 17 Sept. | Light rain | 16° /8° | 3.5 mm | 4 | |
| 18 Sept. | Light rain shower | 16° /9° | 13.4 mm | 4 | |
| 19 Sept. | Light rain shower | 17° /7° | 9.2 mm | 5 | |
| 20 Sept. | Light rain shower | 17° /8° | 4.1 mm | 5 | |
| 21 Sept. | Light rain shower | 15° /8° | 1.2 mm | 4 | |
| 22 Sept. | Light rain shower | 15° /7° | 0.8 mm | 4 | |
| 23 Sept. | Cloudy | 14° /5° | 0.5 mm | 4 | |
| 24 Sept. | Light rain shower | 13° /7° | 18.6 mm | 3 | |
| 25 Sept. | Light rain shower | 12° /8° | 2 mm | 3 | |
| 26 Sept. | Light rain shower | 12° /6° | 10.1 mm | 3 | |
| 27 Sept. | Moderate or heavy rain with thunder | 12° /4° | 7.7 mm | 3 | |
| 28 Sept. | Light rain | 13° /6° | 4.5 mm | 4 | |
| 29 Sept. | Patchy rain possible | 13° /6° | 0.7 mm | 3 | |
| 30 Sept. | Patchy rain possible | 12° /7° | 1.5 mm | 3 | |
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Important Notice
Our weather forecast for Glasgow in September is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the Glasgow forecast closer to your planned date for the most up-to-date weather information.
Glasgow in September - FAQ
What are the expected maximum and minimum temperatures in Glasgow during September?
Enjoy moderate daytime temperatures of up to 16° and cooler nights around 9°. Ideal for a range of outdoor activities, from hiking to city tours.
How much rainfall should be expected in Glasgow during September?
Significant rainfall exceeding 144.1 mm is expected in Glasgow during September, occurring over more than 21 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in Glasgow during September?
The average wind speed in Glasgow during September is 20 km/h, suggesting breezy to windy conditions, depending on your activities.
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