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The temperatures in Middlesex in September are comfortable with low of 17°C and and high up to 25°C.
You can expect about 3 to 8 days of rain in Middlesex during the month of September. 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 Middlesex in September 2025.
If you’re planning to visit Middlesex in the near future, we highly recommend that you review the 14 day weather forecast for Middlesex before you arrive.
| Month | Temperatures | Rainy Days | Dry Days | Snowy Days | Rainfall | Weather | More details |
|---|---|---|---|---|---|---|---|
| January | 3° / -3° | 5 | 21 | 6 | 40 mm | Awful | Middlesex in January |
| February | 4° / -3° | 5 | 17 | 7 | 55 mm | Awful | Middlesex in February |
| March | 9° / 2° | 5 | 22 | 4 | 60 mm | Bad | Middlesex in March |
| April | 16° / 7° | 4 | 26 | 0 | 50 mm | Good | Middlesex in April |
| May | 21° / 12° | 5 | 26 | 0 | 63 mm | Good | Middlesex in May |
| June | 26° / 17° | 4 | 26 | 0 | 63 mm | Perfect | Middlesex in June |
| July | 30° / 21° | 6 | 25 | 0 | 79 mm | Good | Middlesex in July |
| August | 29° / 20° | 5 | 26 | 0 | 78 mm | Good | Middlesex in August |
| September | 25° / 17° | 3 | 27 | 0 | 49 mm | Perfect | Middlesex in September |
| October | 19° / 11° | 4 | 27 | 0 | 56 mm | Good | Middlesex in October |
| November | 12° / 5° | 4 | 26 | 1 | 38 mm | Ok | Middlesex in November |
| December | 6° / 1° | 5 | 23 | 4 | 65 mm | Awful | Middlesex in December |
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