Click on a day for an hourly weather forecast
The temperatures in Abersoch in September are usually low and can range between 13°C and 15°C.
You can expect rain for roughly half of the month of September in Abersoch. We’re expecting roughly 8 to 15 days of rain, so your rubber boots and umbrella are going to see plenty of use this month if you’re keen on staying dry.
Our weather forecast can give you a great sense of what weather to expect in Abersoch in September 2025.
If you’re planning to visit Abersoch in the near future, we highly recommend that you review the 14 day weather forecast for Abersoch before you arrive.
| Month | Temperatures | Rainy Days | Dry Days | Snowy Days | Rainfall | Weather | More details |
|---|---|---|---|---|---|---|---|
| January | 7° / 5° | 12 | 16 | 2 | 161 mm | Awful | Abersoch in January |
| February | 7° / 5° | 10 | 16 | 2 | 127 mm | Awful | Abersoch in February |
| March | 8° / 5° | 8 | 21 | 1 | 99 mm | Bad | Abersoch in March |
| April | 9° / 6° | 6 | 24 | 0 | 81 mm | Ok | Abersoch in April |
| May | 11° / 9° | 8 | 23 | 0 | 109 mm | Bad | Abersoch in May |
| June | 14° / 11° | 8 | 22 | 0 | 121 mm | Ok | Abersoch in June |
| July | 15° / 13° | 7 | 24 | 0 | 128 mm | Ok | Abersoch in July |
| August | 15° / 13° | 8 | 23 | 0 | 155 mm | Ok | Abersoch in August |
| September | 15° / 13° | 8 | 22 | 0 | 142 mm | Ok | Abersoch in September |
| October | 13° / 11° | 10 | 21 | 0 | 198 mm | Bad | Abersoch in October |
| November | 10° / 8° | 12 | 18 | 0 | 194 mm | Bad | Abersoch in November |
| December | 9° / 7° | 12 | 18 | 2 | 194 mm | Awful | Abersoch in December |