Northumberland (Berwick-Upon-Tweed)
September
Weather in Northumberland for September 2026
Your guide to Northumberland weather in September - trends and predictions
So far, September 2026 in Northumberland is slightly warmer than the historical average by 0.9 °C.
The forecast for the next days in Northumberland predicts temperatures to be around 18 °C, close to the historical average.
In general, the average temperature in Northumberland at the beginning of September is 16.4 °C. As the month progressed, temperatures tended to moderately rise, reaching an average of 18.4 °C by the end of September.
Northumberland in September brings notable rainfall, with an average of 18 rainy days and a total precipitation of 83.3 mm.
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Temperatures
Rain 🌧️
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12
Dry days
18
Rainy days
0
Snow days
14°/10°
Temperatures
28 km/h
Avg max wind
79 %
Avg humidity
Northumberland Weather September
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Temperatures trend during September in Northumberland
See the weather trend as well as the moving average line
September weather in Northumberland day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 Sept. |  Patchy rain possible | 16° /12° | 2 mm | 3 | |
| 2 Sept. |  Heavy rain at times | 17° /11° | 4.7 mm | 3 | |
| 3 Sept. | Heavy rain at times | 16° /11° | 6.9 mm | 3 | |
| 4 Sept. | Patchy rain possible | 16° /10° | 1.2 mm | 3 | |
| 5 Sept. | Patchy rain possible | 16° /11° | 0.6 mm | 3 | |
| 6 Sept. |  Overcast | 17° /11° | 0.9 mm | 3 | |
| 7 Sept. |  Cloudy | 17° /13° | 1.4 mm | 3 | |
| 8 Sept. |  Moderate rain at times | 16° /11° | 3.5 mm | 3 | |
| 9 Sept. | Patchy rain possible | 15° /9° | 0.7 mm | 3 | |
| 10 Sept. | Patchy rain possible | 15° /9° | 5.8 mm | 2 | |
| 11 Sept. | Patchy rain possible | 15° /9° | 0.4 mm | 3 | |
| 12 Sept. | Patchy rain possible | 16° /9° | 1.5 mm | 3 | |
| 13 Sept. | Patchy rain possible | 14° /8° | 1.1 mm | 2 | |
| 14 Sept. | Moderate rain at times | 17° /9° | 3.2 mm | 3 | |
| 15 Sept. | Overcast | 16° /11° | 2.3 mm | 3 | |
| 16 Sept. | Patchy rain possible | 15° /10° | 0.6 mm | 3 | |
| 17 Sept. |  Sunny | 16° /10° | 0.3 mm | 3 | |
| 18 Sept. | Sunny | 16° /11° | 0.7 mm | 3 | |
| 19 Sept. | Sunny | 16° /11° | 4.2 mm | 5 | |
| 20 Sept. | Sunny | 16° /11° | 0 mm | 2.7 | |
| 21 Sept. | Sunny | 20° /9° | 1.1 mm | 2.5 | |
| 22 Sept. | Sunny | 20° /14° | 0 mm | 2.8 | |
| 23 Sept. | Light rain shower | 14° /9° | 7.7 mm | 1.1 | |
| 24 Sept. | Overcast | 17° /8° | 0 mm | 5 | |
| 25 Sept. | Sunny | 19° /10° | 0 mm | 5 | |
| 26 Sept. | Overcast | 16° /11° | 0 mm | 5 | |
| 27 Sept. | Overcast | 16° /11° | 0 mm | 4 | |
| 28 Sept. | Sunny | 22° /11° | 0 mm | 6 | |
| 29 Sept. | Sunny | 17° /12° | 0 mm | 4 | |
| 30 Sept. | Sunny | 22° /12° | 0 mm | 6 | |
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Important Notice
Our weather forecast for Northumberland 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 Northumberland forecast closer to your planned date for the most up-to-date weather information.
Change Month
Northumberland in September - FAQ
What are the expected maximum and minimum temperatures in Northumberland during September?
During September, expect a variety of temperatures with highs around 14° and lows near 10°, suitable for diverse activities and preferences.
How much rainfall should be expected in Northumberland during September?
Moderate rainfall is anticipated in Northumberland during September, with a total of 83.3 mm spread over approximately 18 days. Considering plans for rainy days is advisable.
What are the typical wind conditions in Northumberland during September?
The average wind speed in Northumberland during September is 28 km/h, suggesting breezy to windy conditions, depending on your activities.
September rainfall patterns in Northumberland
Explore the daily rainfall trends and prepare for Northumberlands September weather 💧
Typically, Northumberland has 18 rainy days in September with a total of 83.3 mm of rainfall.
UV exposure in Northumberland during September
Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️
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