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.
Temperatures
15° / 13°
Rainy Days
8
Snowy Days
0
Dry Days
22
Rainfall
142
mm
Sun Hours
8.6
Hrs
