Derry City and Strabane (Derry)
September
Weather in Derry City and Strabane for September 2025
Your guide to Derry City and Strabane weather in September - trends and predictions
In general, the average temperature in Derry City and Strabane at the beginning of September is 19.6 °C. As the month progressed, temperatures tended to significantly cool down, reaching an average of 13 °C by the end of September.
Derry City and Strabane experiences heavy rainfall in September, with over 20 rainy days and an average total precipitation 90.6 mm.
New! Chat with our AI weatherman - it’s amazing and free.
Temperatures
Rain 🌧️
More
8
Dry days
22
Rainy days
0
Snow days
16°/8°
Temperatures
19 km/h
Avg max wind
85 %
Avg humidity
Derry City and Strabane in September average weather
Move between months or click on a day
| Mon. | Tue. | Wed. | Thu. | Fri. | Sat. | Sun. |
|---|---|---|---|---|---|---|
| 1  17° | 2  18° | 3  18° | 4 18° | 5 20° | 6 22° | 7 24° |
| 8 20° | 9 18° | 10 17° | 11 13° | 12 13° | 13  12° | 14 16° |
| 15  14° | 16 17° | 17 18° | 18 16° | 19 18° | 20 17° | 21  14° |
| 22 14° | 23 14° | 24 14° | 25 13° | 26 12° | 27 12° | 28 13° |
| 29 14° | 30 13° |
You can click on date
Access Derry City and Strabane weather forecasts with a simple click. Select any date for comprehensive insights on temperature, rainfall, and wind conditions.
Temperatures trend during September in Derry City and Strabane
See the weather trend as well as the moving average line
September weather day by day
Click on a date for more information
| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 Sept. | Patchy rain possible | 17° /9° | 0.1 mm | 4 | |
| 2 Sept. | Mist | 18° /10° | 5.3 mm | 4 | |
| 3 Sept. | Partly cloudy | 18° /9° | 1.1 mm | 5 | |
| 4 Sept. | Partly cloudy | 18° /8° | 1.7 mm | 5 | |
| 5 Sept. | Mist | 20° /9° | 0 mm | 5 | |
| 6 Sept. | Mist | 22° /11° | 0.3 mm | 5 | |
| 7 Sept. | Patchy rain possible | 24° /13° | 0.2 mm | 5 | |
| 8 Sept. | Patchy rain possible | 20° /11° | 3.1 mm | 5 | |
| 9 Sept. | Light rain shower | 18° /10° | 1 mm | 4 | |
| 10 Sept. | Light rain shower | 17° /10° | 4.2 mm | 4 | |
| 11 Sept. | Light rain shower | 13° /6° | 5.3 mm | 4 | |
| 12 Sept. | Mist | 13° /4° | 1 mm | 4 | |
| 13 Sept. | Moderate rain | 12° /4° | 8.3 mm | 3 | |
| 14 Sept. | Mist | 16° /8° | 0.6 mm | 4 | |
| 15 Sept. | Overcast | 14° /7° | 0.2 mm | 4 | |
| 16 Sept. | Patchy rain possible | 17° /6° | 0.1 mm | 4 | |
| 17 Sept. | Moderate rain | 18° /9° | 8.1 mm | 5 | |
| 18 Sept. | Light rain shower | 16° /8° | 3.8 mm | 4 | |
| 19 Sept. | Light rain shower | 18° /8° | 6.4 mm | 5 | |
| 20 Sept. | Light rain shower | 17° /8° | 6.7 mm | 5 | |
| 21 Sept. | Light rain | 14° /6° | 2.7 mm | 4 | |
| 22 Sept. | Light rain shower | 14° /8° | 3 mm | 4 | |
| 23 Sept. | Patchy light rain | 14° /5° | 1.3 mm | 3 | |
| 24 Sept. | Light rain shower | 14° /9° | 4.2 mm | 4 | |
| 25 Sept. | Patchy rain possible | 13° /9° | 2.2 mm | 3 | |
| 26 Sept. | Light rain shower | 12° /5° | 8.2 mm | 3 | |
| 27 Sept. | Light rain shower | 12° /5° | 5.3 mm | 3 | |
| 28 Sept. | Light drizzle | 13° /7° | 2 mm | 3 | |
| 29 Sept. | Patchy rain possible | 14° /7° | 0.7 mm | 4 | |
| 30 Sept. | Light drizzle | 13° /7° | 3.3 mm | 4 | |
| Next | |||||
Important Notice
Our weather forecast for Derry City and Strabane 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 Derry City and Strabane forecast closer to your planned date for the most up-to-date weather information.
Derry City and Strabane in September - FAQ
What are the expected maximum and minimum temperatures in Derry City and Strabane during September?
Enjoy moderate daytime temperatures of up to 16° and cooler nights around 8°. Ideal for a range of outdoor activities, from hiking to city tours.
How much rainfall should be expected in Derry City and Strabane during September?
Moderate rainfall is anticipated in Derry City and Strabane during September, with a total of 90.6 mm spread over approximately 22 days. Considering plans for rainy days is advisable.
What are the typical wind conditions in Derry City and Strabane during September?
The average wind speed in Derry City and Strabane during September is 19 km/h, suggesting breezy to windy conditions, depending on your activities.
September rainfall patterns in Derry City and Strabane
Explore the daily rainfall trends and prepare for Derry City and Strabanes September weather 💧
UV exposure in Derry City and Strabane during September
Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️
Top locations in Derry City and Strabane
Select a location for an accurate weather forecast
More Locations Quick links
You are here
Where is Derry City and Strabane?Get accurate weather forecasts for Derry City and Strabane, located at latitude 54.998 and longitude -7.309. Stay updated with localized weather information tailored for Derry City and Strabane.
Found a mistake?
We appreciate your attention to details. Tell us here.