Click on a day for an hourly weather forecast
The temperatures in Swords in September are usually low and can range between 11°C and 16°C.
You can expect about 3 to 8 days of rain in Swords during the month of September. It’s a good idea to bring along your umbrella so that you don’t get caught in poor weather.
Our weather forecast can give you a great sense of what weather to expect in Swords in September 2025.
If you’re planning to visit Swords in the near future, we highly recommend that you review the 14 day weather forecast for Swords before you arrive.
| Month | Temperatures | Rainy Days | Dry Days | Snowy Days | Rainfall | Weather | More details |
|---|---|---|---|---|---|---|---|
| January | 8° / 4° | 10 | 18 | 2 | 103 mm | Awful | Swords in January |
| February | 8° / 4° | 8 | 18 | 2 | 92 mm | Awful | Swords in February |
| March | 9° / 5° | 7 | 23 | 1 | 78 mm | Bad | Swords in March |
| April | 10° / 6° | 7 | 22 | 1 | 72 mm | Bad | Swords in April |
| May | 13° / 8° | 6 | 25 | 0 | 74 mm | Ok | Swords in May |
| June | 15° / 11° | 6 | 24 | 0 | 98 mm | Good | Swords in June |
| July | 17° / 12° | 7 | 24 | 0 | 97 mm | Ok | Swords in July |
| August | 17° / 12° | 7 | 24 | 0 | 106 mm | Ok | Swords in August |
| September | 16° / 11° | 7 | 23 | 0 | 89 mm | Ok | Swords in September |
| October | 13° / 10° | 8 | 23 | 0 | 123 mm | Bad | Swords in October |
| November | 10° / 7° | 9 | 21 | 0 | 124 mm | Bad | Swords in November |
| December | 8° / 5° | 9 | 20 | 2 | 114 mm | Awful | Swords in December |