Cork
September
Weather in Cork for September 2025
Your guide to Cork weather in September - trends and predictions
In general, the average temperature in Cork at the beginning of September is 19.1 °C. As the month progressed, temperatures tended to significantly cool down, reaching an average of 14 °C by the end of September.
Cork experiences an exceptionally high level of rainfall in September, with more than 20 rainy days on average.
Is September a good time to visit Cork? check out the best time to travel to Cork page.
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9
Dry days
21
Rainy days
0
Snow days
17°/11°
Temperatures
24 km/h
Avg max wind
86 %
Avg humidity
Cork in September average weather
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| Mon. | Tue. | Wed. | Thu. | Fri. | Sat. | Sun. |
|---|---|---|---|---|---|---|
| 1  19° | 2  18° | 3  19° | 4 18° | 5 19° | 6  21° | 7 20° |
| 8 21° | 9  21° | 10  18° | 11 15° | 12 15° | 13 14° | 14  16° |
| 15 15° | 16  17° | 17 17° | 18 16° | 19  19° | 20 18° | 21 17° |
| 22 14° | 23 17° | 24 14° | 25 13° | 26 13° | 27 14° | 28 14° |
| 29 14° | 30 16° |
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Temperatures trend during September in Cork
See the weather trend as well as the moving average line
September weather day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 Sept. | Light rain shower | 19° /12° | 2.8 mm | 4 | |
| 2 Sept. | Sunny | 18° /10° | 0.6 mm | 5 | |
| 3 Sept. | Overcast | 19° /9° | 0.1 mm | 5 | |
| 4 Sept. | Sunny | 18° /8° | 0 mm | 5 | |
| 5 Sept. | Patchy rain possible | 19° /10° | 5.4 mm | 5 | |
| 6 Sept. | Mist | 21° /14° | 0.3 mm | 5 | |
| 7 Sept. | Fog | 20° /13° | 0.2 mm | 5 | |
| 8 Sept. | Patchy rain possible | 21° /12° | 0.4 mm | 5 | |
| 9 Sept. | Partly cloudy | 21° /11° | 0 mm | 6 | |
| 10 Sept. | Moderate or heavy rain shower | 18° /12° | 5.5 mm | 4 | |
| 11 Sept. | Light rain shower | 15° /9° | 5 mm | 4 | |
| 12 Sept. | Partly cloudy | 15° /6° | 0.1 mm | 4 | |
| 13 Sept. | Overcast | 14° /5° | 0 mm | 4 | |
| 14 Sept. | Moderate rain | 16° /10° | 7.2 mm | 4 | |
| 15 Sept. | Moderate rain | 15° /9° | 8.1 mm | 4 | |
| 16 Sept. | Cloudy | 17° /9° | 0.2 mm | 5 | |
| 17 Sept. | Light rain shower | 17° /10° | 5.5 mm | 4 | |
| 18 Sept. | Patchy rain possible | 16° /8° | 0.2 mm | 4 | |
| 19 Sept. | Light drizzle | 19° /11° | 1.9 mm | 5 | |
| 20 Sept. | Patchy rain possible | 18° /9° | 10.2 mm | 5 | |
| 21 Sept. | Patchy rain possible | 17° /8° | 0.8 mm | 4 | |
| 22 Sept. | Light rain shower | 14° /7° | 4.6 mm | 3 | |
| 23 Sept. | Light rain | 17° /7° | 4.8 mm | 4 | |
| 24 Sept. | Moderate rain | 14° /11° | 5.9 mm | 4 | |
| 25 Sept. | Patchy rain possible | 13° /9° | 1.1 mm | 4 | |
| 26 Sept. | Patchy rain possible | 13° /8° | 6.2 mm | 3 | |
| 27 Sept. | Light rain shower | 14° /8° | 12.4 mm | 4 | |
| 28 Sept. | Light rain shower | 14° /6° | 2.1 mm | 3 | |
| 29 Sept. | Mist | 14° /9° | 12.2 mm | 4 | |
| 30 Sept. | Light rain shower | 16° /9° | 11.7 mm | 4 | |
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Important Notice
Our weather forecast for Cork 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 Cork forecast closer to your planned date for the most up-to-date weather information.
Cork in September - FAQ
What are the expected maximum and minimum temperatures in Cork during September?
Enjoy moderate daytime temperatures of up to 17° and cooler nights around 11°. Ideal for a range of outdoor activities, from hiking to city tours.
How much rainfall should be expected in Cork during September?
Significant rainfall exceeding 173.8 mm is expected in Cork during September, occurring over more than 21 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in Cork during September?
The average wind speed in Cork during September is 24 km/h, suggesting breezy to windy conditions, depending on your activities.
What to pack to Cork in September?
As you prepare for your trip to Cork 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 Cork, 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
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