Click on a day for an hourly weather forecast
The weather in Gloucester in August is hot. The average temperatures are between 21°C and 29°C.
You can expect rain for roughly half of the month of August in Gloucester. 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 Gloucester in August 2025.
If you’re planning to visit Gloucester in the near future, we highly recommend that you review the 14 day weather forecast for Gloucester before you arrive.
| Month | Temperatures | Rainy Days | Dry Days | Snowy Days | Rainfall | Weather | More details |
|---|---|---|---|---|---|---|---|
| January | 4° / -2° | 8 | 20 | 3 | 84 mm | Awful | Gloucester in January |
| February | 6° / -2° | 8 | 17 | 3 | 97 mm | Awful | Gloucester in February |
| March | 11° / 2° | 8 | 21 | 2 | 115 mm | Awful | Gloucester in March |
| April | 17° / 8° | 7 | 23 | 0 | 102 mm | Ok | Gloucester in April |
| May | 22° / 13° | 8 | 23 | 0 | 100 mm | Ok | Gloucester in May |
| June | 27° / 18° | 10 | 20 | 0 | 121 mm | Good | Gloucester in June |
| July | 30° / 21° | 11 | 20 | 0 | 124 mm | Ok | Gloucester in July |
| August | 29° / 21° | 10 | 21 | 0 | 135 mm | Ok | Gloucester in August |
| September | 25° / 17° | 7 | 23 | 0 | 106 mm | Good | Gloucester in September |
| October | 19° / 11° | 7 | 24 | 0 | 135 mm | Ok | Gloucester in October |
| November | 12° / 5° | 5 | 25 | 0 | 82 mm | Ok | Gloucester in November |
| December | 8° / 1° | 7 | 23 | 1 | 126 mm | Bad | Gloucester in December |