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The weather in Sussex in January is very cold with temperatures between -6°C and 0°C, warm clothes are a must.
You can expect about 3 to 8 days of rain in Sussex during the month of January. It’s a good idea to bring along your umbrella so that you don’t get caught in poor weather.
Sussex is going to experience quite a number of days of snow during January. 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 January 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 |