Click on a day for an hourly weather forecast
The temperatures in Tenby in August are comfortable with low of 15°C and and high up to 17°C.
You can expect rain for roughly half of the month of August in Tenby. 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 Tenby in August 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.
| Month | Temperatures | Rainy Days | Dry Days | Snowy Days | Rainfall | Weather | More details |
|---|---|---|---|---|---|---|---|
| January | 9° / 6° | 11 | 18 | 1 | 166 mm | Bad | Tenby in January |
| February | 8° / 6° | 10 | 17 | 1 | 121 mm | Bad | Tenby in February |
| March | 9° / 6° | 7 | 23 | 1 | 94 mm | Bad | Tenby in March |
| April | 11° / 8° | 6 | 23 | 0 | 80 mm | Ok | Tenby in April |
| May | 13° / 10° | 7 | 25 | 0 | 86 mm | Bad | Tenby in May |
| June | 16° / 12° | 7 | 23 | 0 | 105 mm | Ok | Tenby in June |
| July | 17° / 15° | 6 | 25 | 0 | 106 mm | Good | Tenby in July |
| August | 17° / 15° | 9 | 22 | 0 | 148 mm | Ok | Tenby in August |
| September | 16° / 14° | 7 | 23 | 0 | 123 mm | Ok | Tenby in September |
| October | 14° / 12° | 11 | 20 | 0 | 192 mm | Ok | Tenby in October |
| November | 12° / 9° | 12 | 18 | 0 | 202 mm | Bad | Tenby in November |
| December | 10° / 8° | 12 | 18 | 1 | 186 mm | Bad | Tenby in December |