Click on a day for an hourly weather forecast
The temperatures in Haverfordwest in August are comfortable with low of 15°C and and high up to 18°C.
You can expect rain for roughly half of the month of August in Haverfordwest. 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 Haverfordwest in August 2025.
If you’re planning to visit Haverfordwest in the near future, we highly recommend that you review the 14 day weather forecast for Haverfordwest before you arrive.
| Month | Temperatures | Rainy Days | Dry Days | Snowy Days | Rainfall | Weather | More details |
|---|---|---|---|---|---|---|---|
| January | 9° / 6° | 10 | 21 | 0 | 102 mm | Bad | Haverfordwest in January |
| February | 8° / 6° | 8 | 21 | 0 | 76 mm | Bad | Haverfordwest in February |
| March | 9° / 6° | 8 | 23 | 0 | 68 mm | Bad | Haverfordwest in March |
| April | 11° / 7° | 6 | 24 | 0 | 52 mm | Ok | Haverfordwest in April |
| May | 13° / 9° | 7 | 24 | 0 | 61 mm | Bad | Haverfordwest in May |
| June | 16° / 12° | 6 | 24 | 0 | 71 mm | Good | Haverfordwest in June |
| July | 18° / 14° | 7 | 24 | 0 | 70 mm | Ok | Haverfordwest in July |
| August | 18° / 15° | 9 | 23 | 0 | 91 mm | Ok | Haverfordwest in August |
| September | 16° / 13° | 7 | 23 | 0 | 89 mm | Ok | Haverfordwest in September |
| October | 14° / 12° | 10 | 21 | 0 | 122 mm | Ok | Haverfordwest in October |
| November | 11° / 9° | 13 | 17 | 0 | 127 mm | Bad | Haverfordwest in November |
| December | 10° / 7° | 12 | 19 | 0 | 128 mm | Bad | Haverfordwest in December |