Click on a day for an hourly weather forecast
The weather in Sussex in March is very cold with temperatures between -2°C and 6°C, warm clothes are a must.
You can expect rain for roughly half of the month of March in Sussex. 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.
Sussex is going to experience quite a number of days of snow during March. It’s the perfect time to build snowmen, drink hot cocoa, and have a snowball fight. Just remember to wear a warm scarf and a pair of mittens!
Our weather forecast can give you a great sense of what weather to expect in Sussex in March 2025.
If you’re planning to visit Sussex in the near future, we highly recommend that you review the 14 day weather forecast for Sussex before you arrive.
| Month | Temperatures | Rainy Days | Dry Days | Snowy Days | Rainfall | Weather | More details |
|---|---|---|---|---|---|---|---|
| January | 0° / -6° | 6 | 15 | 11 | 113 mm | Awful | Sussex in January |
| February | 1° / -6° | 5 | 12 | 11 | 127 mm | Awful | Sussex in February |
| March | 6° / -2° | 8 | 15 | 8 | 139 mm | Awful | Sussex in March |
| April | 13° / 4° | 8 | 20 | 2 | 127 mm | Awful | Sussex in April |
| May | 20° / 10° | 7 | 24 | 0 | 102 mm | Ok | Sussex in May |
| June | 24° / 14° | 7 | 23 | 0 | 119 mm | Good | Sussex in June |
| July | 28° / 18° | 7 | 24 | 0 | 119 mm | Good | Sussex in July |
| August | 28° / 17° | 5 | 26 | 0 | 103 mm | Perfect | Sussex in August |
| September | 23° / 14° | 4 | 26 | 0 | 79 mm | Perfect | Sussex in September |
| October | 16° / 8° | 6 | 25 | 0 | 125 mm | Good | Sussex in October |
| November | 10° / 3° | 6 | 22 | 2 | 103 mm | Bad | Sussex in November |
| December | 4° / -2° | 7 | 16 | 7 | 141 mm | Awful | Sussex in December |