Click on a day for an hourly weather forecast
The temperatures in Clare in September are usually low and can range between 10°C and 16°C.
You can expect about 3 to 8 days of rain in Clare 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 Clare in September 2025.
If you’re planning to visit Clare in the near future, we highly recommend that you review the 14 day weather forecast for Clare before you arrive.
| Month | Temperatures | Rainy Days | Dry Days | Snowy Days | Rainfall | Weather | More details |
|---|---|---|---|---|---|---|---|
| January | 8° / 4° | 11 | 19 | 1 | 139 mm | Bad | Clare in January |
| February | 8° / 4° | 11 | 16 | 2 | 131 mm | Awful | Clare in February |
| March | 10° / 4° | 9 | 20 | 1 | 104 mm | Bad | Clare in March |
| April | 12° / 5° | 6 | 24 | 0 | 81 mm | Ok | Clare in April |
| May | 14° / 7° | 8 | 23 | 0 | 106 mm | Ok | Clare in May |
| June | 17° / 10° | 7 | 23 | 0 | 109 mm | Ok | Clare in June |
| July | 18° / 11° | 8 | 23 | 0 | 115 mm | Ok | Clare in July |
| August | 17° / 11° | 8 | 23 | 0 | 127 mm | Ok | Clare in August |
| September | 16° / 10° | 7 | 23 | 0 | 107 mm | Ok | Clare in September |
| October | 13° / 8° | 9 | 22 | 0 | 122 mm | Bad | Clare in October |
| November | 10° / 6° | 11 | 19 | 0 | 149 mm | Bad | Clare in November |
| December | 8° / 4° | 11 | 19 | 1 | 150 mm | Bad | Clare in December |