Weather in Dublin City for September 2025
In general, the average temperature in Dublin City at the beginning of September is 17.7 °C. As the month progressed, temperatures tended to significantly cool down, reaching an average of 14.3 °C by the end of September.
Expect significant rainfall in Dublin City during September, with an average of 20 rainy days.
Is September a good time to visit Dublin City? check out the best time to travel to Dublin City page.
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Dublin City in September average weather
Mon. | Tue. | Wed. | Thu. | Fri. | Sat. | Sun. |
---|---|---|---|---|---|---|
1 17° | 2 17° | 3 18° | 4 17° | 5 17° | 6 19° | 7 19° |
8 19° | 9 18° | 10 16° | 11 15° | 12 14° | 13 15° | 14 17° |
15 14° | 16 16° | 17 16° | 18 15° | 19 16° | 20 16° | 21 15° |
22 14° | 23 15° | 24 15° | 25 14° | 26 14° | 27 14° | 28 15° |
29 14° | 30 14° |
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Temperatures trend during September in Dublin City
September weather day by day
Date | Weather | Temperatures | Rain | UV | More |
---|---|---|---|---|---|
1 Sept. | Light rain shower | 17° /13° | 0.4 mm | 4 | |
2 Sept. | Cloudy | 17° /12° | 3.1 mm | 4 | |
3 Sept. | Overcast | 18° /11° | 0.3 mm | 4 | |
4 Sept. | Sunny | 17° /10° | 1.2 mm | 5 | |
5 Sept. | Mist | 17° /12° | 4.3 mm | 4 | |
6 Sept. | Partly cloudy | 19° /15° | 0 mm | 5 | |
7 Sept. | Light rain shower | 19° /14° | 4.1 mm | 5 | |
8 Sept. | Moderate or heavy rain shower | 19° /13° | 11 mm | 5 | |
9 Sept. | Patchy rain possible | 18° /12° | 1.1 mm | 5 | |
10 Sept. | Light rain shower | 16° /12° | 8.1 mm | 4 | |
11 Sept. | Moderate rain | 15° /11° | 8.2 mm | 4 | |
12 Sept. | Partly cloudy | 14° /7° | 0.2 mm | 4 | |
13 Sept. | Overcast | 15° /7° | 0.2 mm | 4 | |
14 Sept. | Overcast | 17° /10° | 3.6 mm | 5 | |
15 Sept. | Moderate rain | 14° /11° | 18.9 mm | 4 | |
16 Sept. | Light rain shower | 16° /10° | 3.3 mm | 4 | |
17 Sept. | Light rain shower | 16° /13° | 6.2 mm | 5 | |
18 Sept. | Light drizzle | 15° /11° | 0.2 mm | 4 | |
19 Sept. | Light rain shower | 16° /12° | 2.2 mm | 5 | |
20 Sept. | Patchy rain possible | 16° /11° | 1.2 mm | 4 | |
21 Sept. | Patchy rain possible | 15° /11° | 0.7 mm | 4 | |
22 Sept. | Light rain shower | 14° /10° | 3.3 mm | 3 | |
23 Sept. | Patchy rain possible | 15° /9° | 2.9 mm | 4 | |
24 Sept. | Light rain | 15° /11° | 3.8 mm | 4 | |
25 Sept. | Overcast | 14° /10° | 0 mm | 4 | |
26 Sept. | Light rain shower | 14° /10° | 4.6 mm | 4 | |
27 Sept. | Light rain shower | 14° /8° | 11.2 mm | 4 | |
28 Sept. | Light drizzle | 15° /9° | 1.4 mm | 4 | |
29 Sept. | Patchy rain possible | 14° /10° | 9.2 mm | 4 | |
30 Sept. | Moderate rain | 14° /9° | 10.6 mm | 4 | |
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Dublin City in September - FAQ
What to pack to Dublin City in September?
As you prepare for your trip to Dublin City in September, it's important to consider the typical weather patterns for the time of year. Below is a carefully tailored packing list to ensure that your time in Dublin City, during September, is comfortable and enjoyable, regardless of the weather conditions.
- Clothing
- Warm Clothing: Sweaters, hoodies, long pants
- Rain Gear: Lightweight, waterproof clothing
- Footwear
- Waterproof Shoes
- Accessories
- Scarves: To protect you from the cold wind
- Gloves/Mittens: Essential for cold weather
- Warm Hats: Warm hats for insulation in cold weather
- Umbrellas/Raincoats: For rainy days
September rainfall patterns in Dublin City
Quick links
Get accurate weather forecasts for Dublin City, located at latitude 53.333 and longitude -6.249. Stay updated with localized weather information tailored for Dublin City.