Click on a day for an hourly weather forecast
The weather in Brentwood in July is hot. The average temperatures are between 22°C and 26°C.
You can expect rain for roughly half of the month of July in Brentwood. 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 Brentwood in July 2025.
If you’re planning to visit Brentwood in the near future, we highly recommend that you review the 14 day weather forecast for Brentwood before you arrive.
| Month | Temperatures | Rainy Days | Dry Days | Snowy Days | Rainfall | Weather | More details |
|---|---|---|---|---|---|---|---|
| January | 3° / -1° | 6 | 18 | 7 | 109 mm | Awful | Brentwood in January |
| February | 4° / -1° | 6 | 15 | 7 | 126 mm | Awful | Brentwood in February |
| March | 7° / 3° | 6 | 21 | 4 | 138 mm | Bad | Brentwood in March |
| April | 12° / 7° | 7 | 23 | 0 | 129 mm | Bad | Brentwood in April |
| May | 17° / 13° | 7 | 24 | 0 | 147 mm | Ok | Brentwood in May |
| June | 22° / 18° | 7 | 23 | 0 | 145 mm | Ok | Brentwood in June |
| July | 26° / 22° | 8 | 24 | 0 | 193 mm | Good | Brentwood in July |
| August | 26° / 22° | 6 | 25 | 0 | 183 mm | Perfect | Brentwood in August |
| September | 23° / 19° | 6 | 24 | 0 | 134 mm | Perfect | Brentwood in September |
| October | 17° / 14° | 6 | 25 | 0 | 154 mm | Good | Brentwood in October |
| November | 11° / 8° | 5 | 24 | 1 | 88 mm | Ok | Brentwood in November |
| December | 7° / 3° | 7 | 20 | 4 | 156 mm | Awful | Brentwood in December |