Click on a day for an hourly weather forecast
The temperatures in Chichester in October are usually low and can range between 11°C and 15°C.
You can expect rain for roughly half of the month of October in Chichester. 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 Chichester in October 2025.
If you’re planning to visit Chichester in the near future, we highly recommend that you review the 14 day weather forecast for Chichester before you arrive.
| Month | Temperatures | Rainy Days | Dry Days | Snowy Days | Rainfall | Weather | More details |
|---|---|---|---|---|---|---|---|
| January | 8° / 4° | 9 | 19 | 3 | 108 mm | Awful | Chichester in January |
| February | 8° / 4° | 9 | 16 | 3 | 91 mm | Awful | Chichester in February |
| March | 10° / 5° | 6 | 25 | 1 | 69 mm | Ok | Chichester in March |
| April | 12° / 7° | 4 | 26 | 0 | 55 mm | Ok | Chichester in April |
| May | 15° / 9° | 5 | 26 | 0 | 70 mm | Good | Chichester in May |
| June | 17° / 12° | 5 | 25 | 0 | 95 mm | Good | Chichester in June |
| July | 20° / 14° | 5 | 26 | 0 | 78 mm | Good | Chichester in July |
| August | 20° / 15° | 4 | 27 | 0 | 83 mm | Good | Chichester in August |
| September | 18° / 13° | 5 | 25 | 0 | 68 mm | Good | Chichester in September |
| October | 15° / 11° | 8 | 23 | 0 | 125 mm | Ok | Chichester in October |
| November | 11° / 8° | 8 | 22 | 0 | 126 mm | Bad | Chichester in November |
| December | 9° / 6° | 9 | 20 | 2 | 129 mm | Awful | Chichester in December |