Hampshire (Basingstoke)
September
Weather in Hampshire for September 2025
Your guide to Hampshire weather in September - trends and predictions
In general, the average temperature in Hampshire at the beginning of September is 22.9 °C. As the month progressed, temperatures tended to significantly cool down, reaching an average of 16.3 °C by the end of September.
Hampshire sees moderate rainfall in September, averaging 9 rainy days.
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21
Dry days
9
Rainy days
0
Snow days
22°/13°
Temperatures
21 km/h
Avg max wind
74 %
Avg humidity
Hampshire in September average weather
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| Mon. | Tue. | Wed. | Thu. | Fri. | Sat. | Sun. |
|---|---|---|---|---|---|---|
| 1  23° | 2  23° | 3  21° | 4  22° | 5 22° | 6 24° | 7 25° |
| 8  23° | 9 24° | 10 23° | 11 19° | 12 17° | 13 16° | 14  19° |
| 15 21° | 16 22° | 17 20° | 18 21° | 19  20° | 20 20° | 21 20° |
| 22 18° | 23 17° | 24 17° | 25 17° | 26  18° | 27 15° | 28 15° |
| 29 15° | 30 17° |
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Temperatures trend during September in Hampshire
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. | Light rain shower | 23° /13° | 10.4 mm | 5 | |
| 2 Sept. | Overcast | 23° /13° | 0.1 mm | 5 | |
| 3 Sept. | Mist | 21° /12° | 0.3 mm | 5 | |
| 4 Sept. | Sunny | 22° /12° | 1 mm | 6 | |
| 5 Sept. | Sunny | 22° /13° | 12.4 mm | 6 | |
| 6 Sept. | Sunny | 24° /14° | 4.2 mm | 6 | |
| 7 Sept. | Sunny | 25° /14° | 0.2 mm | 6 | |
| 8 Sept. | Partly cloudy | 23° /15° | 13.9 mm | 6 | |
| 9 Sept. | Sunny | 24° /13° | 0 mm | 6 | |
| 10 Sept. | Partly cloudy | 23° /12° | 1.7 mm | 6 | |
| 11 Sept. | Mist | 19° /10° | 0.1 mm | 4 | |
| 12 Sept. | Mist | 17° /8° | 1 mm | 4 | |
| 13 Sept. | Overcast | 16° /8° | 0 mm | 4 | |
| 14 Sept. | Cloudy | 19° /8° | 0 mm | 5 | |
| 15 Sept. | Sunny | 21° /10° | 0 mm | 6 | |
| 16 Sept. | Partly cloudy | 22° /12° | 0 mm | 6 | |
| 17 Sept. | Light rain shower | 20° /11° | 1.7 mm | 5 | |
| 18 Sept. | Light rain shower | 21° /11° | 1.5 mm | 5 | |
| 19 Sept. | Light drizzle | 20° /12° | 0.6 mm | 5 | |
| 20 Sept. | Light rain shower | 20° /12° | 5.6 mm | 5 | |
| 21 Sept. | Light rain shower | 20° /10° | 2.5 mm | 5 | |
| 22 Sept. | Light rain shower | 18° /11° | 3 mm | 4 | |
| 23 Sept. | Overcast | 17° /9° | 0.1 mm | 4 | |
| 24 Sept. | Patchy rain possible | 17° /11° | 0.6 mm | 4 | |
| 25 Sept. | Mist | 17° /11° | 1.6 mm | 4 | |
| 26 Sept. | Thundery outbreaks possible | 18° /11° | 9.7 mm | 4 | |
| 27 Sept. | Fog | 15° /9° | 3.5 mm | 4 | |
| 28 Sept. | Overcast | 15° /7° | 0.3 mm | 4 | |
| 29 Sept. | Overcast | 15° /8° | 1.3 mm | 4 | |
| 30 Sept. | Partly cloudy | 17° /8° | 8.2 mm | 5 | |
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Important Notice
Our weather forecast for Hampshire 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 Hampshire forecast closer to your planned date for the most up-to-date weather information.
Hampshire in September - FAQ
What are the expected maximum and minimum temperatures in Hampshire during September?
Enjoy moderate daytime temperatures of up to 22° and cooler nights around 13°. Ideal for a range of outdoor activities, from hiking to city tours.
How much rainfall should be expected in Hampshire during September?
In September, Hampshire can expect light to moderate rainfall, totaling 23.9 mm across approximately 9 days. Occasional showers are possible, and planning ahead for them could be helpful.
What are the typical wind conditions in Hampshire during September?
The average wind speed in Hampshire during September is 21 km/h, suggesting breezy to windy conditions, depending on your activities.
September rainfall patterns in Hampshire
Explore the daily rainfall trends and prepare for Hampshires September weather 💧
UV exposure in Hampshire during September
Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️
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