The temperatures in Tenby in September are comfortable with low of 12°C and and high up to 26°C.
There is little to no rain in Tenby during September, so it’s a lot easier to explore the city. Just remember to dress in warm layers, as it can still get pretty chilly.
Our weather forecast can give you a great sense of what weather to expect in Tenby in September 2025.
If you’re planning to visit Tenby in the near future, we highly recommend that you review the 14 day weather forecast for Tenby before you arrive.
Temperatures
26° / 12°
Rainy Days
0
Snowy Days
0
Dry Days
30
Rainfall
10
mm
Sun Hours
11.8
Hrs
