Sussex Weather in March

The climate in Sussex during March can be summarized as cool and a little damp.

March is in the spring in Sussex and is typically the 4th coldest month of the year. Daytime maximum temperatures average around a cool 16°C (61°F), whilst at night 3°C (36°F) is normal.

On average March is the 4th wettest month of the year in Sussex with around 97mm 3.8 inches of rain making it a a little damp time to visit. This rainfall is typically spread over 10 days, although this may vary considerably.

On the flip side this corresponds to an average of 8 hours of sunshine per day.

The data used in these monthly averages covers a period of over 100 years right up until last year. As such they are a valid prediction of what to expect for the weather in Sussex in March 2025.