Causeway Coast and Glens (Portrush)
September
Weather in Causeway Coast and Glens for September 2025
Your guide to Causeway Coast and Glens weather in September - trends and predictions
In general, the average temperature in Causeway Coast and Glens at the beginning of September is 15.4 °C. As the month progressed, temperatures tended to significantly cool down, reaching an average of 11.1 °C by the end of September.
Causeway Coast and Glens in September brings notable rainfall, with an average of 18 rainy days and a total precipitation of 97.9 mm.
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Temperatures
Rain 🌧️
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12
Dry days
18
Rainy days
0
Snow days
14°/10°
Temperatures
26 km/h
Avg max wind
80 %
Avg humidity
Causeway Coast and Glens Weather September
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Temperatures trend during September in Causeway Coast and Glens
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September weather in Causeway Coast and Glens day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 Sept. |  Overcast | 16° /12° | 0 mm | 4 | |
| 2 Sept. |  Moderate rain at times | 15° /12° | 4 mm | 4 | |
| 3 Sept. | Moderate rain at times | 14° /10° | 2.5 mm | 3 | |
| 4 Sept. | Moderate or heavy rain shower | 13° /10° | 9.2 mm | 3 | |
| 5 Sept. |  Partly cloudy | 14° /11° | 0 mm | 4 | |
| 6 Sept. |  Sunny | 18° /14° | 0 mm | 5 | |
| 7 Sept. | Sunny | 18° /13° | 0 mm | 5 | |
| 8 Sept. |  Patchy rain possible | 14° /12° | 1 mm | 3 | |
| 9 Sept. | Moderate rain at times | 14° /11° | 3.6 mm | 3 | |
| 10 Sept. | Patchy rain possible | 13° /10° | 7.3 mm | 3 | |
| 11 Sept. | Moderate or heavy rain shower | 11° /10° | 22.3 mm | 3 | |
| 12 Sept. | Moderate or heavy rain shower | 11° /9° | 9.7 mm | 3 | |
| 13 Sept. |  Heavy rain at times | 11° /7° | 3.3 mm | 3 | |
| 14 Sept. | Moderate or heavy rain shower | 16° /10° | 2.2 mm | 4 | |
| 15 Sept. | Moderate rain at times | 15° /11° | 1.3 mm | 4 | |
| 16 Sept. | Overcast | 16° /9° | 0 mm | 4 | |
| 17 Sept. | Overcast | 19° /13° | 0 mm | 4 | |
| 18 Sept. | Sunny | 18° /11° | 0 mm | 5 | |
| 19 Sept. | Sunny | 18° /10° | 0 mm | 5 | |
| 20 Sept. | Sunny | 16° /11° | 0 mm | 5 | |
| 21 Sept. | Partly cloudy | 16° /12° | 0 mm | 5 | |
| 22 Sept. |  Cloudy | 15° /12° | 0 mm | 4 | |
| 23 Sept. | Moderate rain at times | 12° /11° | 2.1 mm | 3 | |
| 24 Sept. | Patchy rain possible | 12° /9° | 2.1 mm | 3 | |
| 25 Sept. | Overcast | 10° /7° | 0.6 mm | 3 | |
| 26 Sept. | Moderate or heavy rain shower | 10° /8° | 11.7 mm | 3 | |
| 27 Sept. | Patchy rain possible | 11° /9° | 1.1 mm | 3 | |
| 28 Sept. | Moderate rain at times | 12° /8° | 3.9 mm | 3 | |
| 29 Sept. | Overcast | 12° /8° | 0 mm | 3 | |
| 30 Sept. | Light rain shower | 11° /9° | 10 mm | 3 | |
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Important Notice
Our weather forecast for Causeway Coast and Glens 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 Causeway Coast and Glens forecast closer to your planned date for the most up-to-date weather information.
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Causeway Coast and Glens in September - FAQ
What are the expected maximum and minimum temperatures in Causeway Coast and Glens 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 Causeway Coast and Glens during September?
Moderate rainfall is anticipated in Causeway Coast and Glens during September, with a total of 97.9 mm spread over approximately 18 days. Considering plans for rainy days is advisable.
What are the typical wind conditions in Causeway Coast and Glens during September?
The average wind speed in Causeway Coast and Glens during September is 26 km/h, suggesting breezy to windy conditions, depending on your activities.
September rainfall patterns in Causeway Coast and Glens
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