Click on a day for an hourly weather forecast
The temperatures in Anglesey in August are usually low and can range between 14°C and 16°C.
You can expect about 3 to 8 days of rain in Anglesey during the month of August. 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 Anglesey in August 2025.
If you’re planning to visit Anglesey in the near future, we highly recommend that you review the 14 day weather forecast for Anglesey before you arrive.
| Month | Temperatures | Rainy Days | Dry Days | Snowy Days | Rainfall | Weather | More details |
|---|---|---|---|---|---|---|---|
| January | 7° / 5° | 11 | 18 | 3 | 106 mm | Awful | Anglesey in January |
| February | 7° / 5° | 9 | 16 | 4 | 93 mm | Awful | Anglesey in February |
| March | 8° / 6° | 7 | 23 | 1 | 71 mm | Bad | Anglesey in March |
| April | 10° / 7° | 5 | 25 | 0 | 50 mm | Ok | Anglesey in April |
| May | 12° / 9° | 6 | 25 | 0 | 67 mm | Ok | Anglesey in May |
| June | 15° / 12° | 6 | 24 | 0 | 66 mm | Good | Anglesey in June |
| July | 16° / 14° | 6 | 25 | 0 | 88 mm | Good | Anglesey in July |
| August | 16° / 14° | 6 | 25 | 0 | 106 mm | Good | Anglesey in August |
| September | 15° / 13° | 6 | 24 | 0 | 92 mm | Good | Anglesey in September |
| October | 13° / 11° | 9 | 22 | 0 | 123 mm | Bad | Anglesey in October |
| November | 10° / 8° | 9 | 20 | 0 | 137 mm | Bad | Anglesey in November |
| December | 9° / 7° | 10 | 19 | 2 | 133 mm | Awful | Anglesey in December |