Antrim and Newtownabbey (Newtownabbey)
September
Weather in Antrim and Newtownabbey for September 2025
Your guide to Antrim and Newtownabbey weather in September - trends and predictions
Until now, September 2025 in Antrim and Newtownabbey is slightly cooler than the historical average by -1.6 °C.
Expect cooler weather in the next days in Antrim and Newtownabbey with the forecast suggesting a temperature of 14.2 °C, lower than the historical average.
In general, the average temperature in Antrim and Newtownabbey at the beginning of September is 17.9 °C. As the month progressed, temperatures tended to significantly cool down, reaching an average of 13.6 °C by the end of September.
Antrim and Newtownabbey in September brings notable rainfall, with an average of 18 rainy days and a total precipitation of 101.9 mm.
New! Chat with our AI weatherman - it’s amazing and free.
Temperatures
Rain 🌧️
More
12
Dry days
18
Rainy days
0
Snow days
16°/9°
Temperatures
23 km/h
Avg max wind
84 %
Avg humidity
Antrim and Newtownabbey Weather September
Move between months or click on a day
Temperatures trend during September in Antrim and Newtownabbey
See the weather trend as well as the moving average line
September weather in Antrim and Newtownabbey day by day
Click on a date for more information
| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 Sept. |  Patchy rain possible | 16° /10° | 1.2 mm | 4 | |
| 2 Sept. | Light rain shower | 18° /9° | 3.7 mm | 4 | |
| 3 Sept. | Light rain shower | 16° /9° | 6 mm | 4 | |
| 4 Sept. |  Sunny | 17° /8° | 1.9 mm | 4 | |
| 5 Sept. |  Partly cloudy | 18° /9° | 0 mm | 5 | |
| 6 Sept. | Partly cloudy | 20° /11° | 0 mm | 5 | |
| 7 Sept. | Patchy rain possible | 20° /11° | 2.7 mm | 4 | |
| 8 Sept. | Partly cloudy | 19° /9° | 0.8 mm | 5 | |
| 9 Sept. | Patchy rain possible | 18° /10° | 0.8 mm | 4 | |
| 10 Sept. |  Moderate or heavy rain shower | 17° /10° | 8.2 mm | 4 | |
| 11 Sept. | Light rain shower | 14° /8° | 3.4 mm | 3 | |
| 12 Sept. | Light rain shower | 14° /6° | 1.2 mm | 4 | |
| 13 Sept. |  Overcast | 14° /5° | 1.5 mm | 3 | |
| 14 Sept. | Overcast | 16° /8° | 3.3 mm | 4 | |
| 15 Sept. |  Moderate rain | 14° /9° | 8.6 mm | 3 | |
| 16 Sept. | Patchy rain possible | 16° /10° | 1.1 mm | 0.8 | |
| 17 Sept. | Moderate rain | 17° /10° | 15.2 mm | 0.7 | |
| 18 Sept. | Moderate rain | 19° /10° | 6.9 mm | 0.2 | |
| 19 Sept. | Patchy rain possible | 15° /10° | 0.5 mm | 0.4 | |
| 20 Sept. | Patchy rain possible | 13° /9° | 3.2 mm | 0.3 | |
| 21 Sept. | Patchy rain possible | 11° /7° | 0.3 mm | 2 | |
| 22 Sept. | Partly cloudy | 12° /6° | 0 mm | 3 | |
| 23 Sept. | Patchy rain possible | 13° /6° | 0.4 mm | 2 | |
| 24 Sept. | Patchy rain possible | 16° /10° | 0.2 mm | 3 | |
| 25 Sept. | Partly cloudy | 15° /10° | 0.1 mm | 4 | |
| 26 Sept. | Moderate rain | 11° /9° | 8.5 mm | 3 | |
| 27 Sept. | Patchy rain possible | 14° /9° | 1.5 mm | 3 | |
| 28 Sept. | Sunny | 13° /8° | 0 mm | 4 | |
| 29 Sept. | Partly cloudy | 14° /7° | 0 mm | 4 | |
| 30 Sept. | Light rain shower | 12° /8° | 12.2 mm | 3 | |
| Next | |||||
Important Notice
Our weather forecast for Antrim and Newtownabbey 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 Antrim and Newtownabbey forecast closer to your planned date for the most up-to-date weather information.
Change Month
Antrim and Newtownabbey in September - FAQ
What are the expected maximum and minimum temperatures in Antrim and Newtownabbey 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 Antrim and Newtownabbey during September?
Significant rainfall exceeding 101.9 mm is expected in Antrim and Newtownabbey during September, occurring over more than 18 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in Antrim and Newtownabbey during September?
The average wind speed in Antrim and Newtownabbey during September is 23 km/h, suggesting breezy to windy conditions, depending on your activities.
September rainfall patterns in Antrim and Newtownabbey
Explore the daily rainfall trends and prepare for Antrim and Newtownabbeys September weather 💧
Top locations in Antrim and Newtownabbey
Select a location for an accurate weather forecast
More Locations Quick links
More Antrim and Newtownabbey weather pages
You are here
Where is Antrim and Newtownabbey?Get accurate weather forecasts for Antrim and Newtownabbey, located at latitude 54.66 and longitude -5.909. Stay updated with localized weather information tailored for Antrim and Newtownabbey.
Found a mistake?
We appreciate your attention to details. Tell us here.