Newhaven Weather in September

September in Newhaven brings moderate temperatures, with daytime highs of 16°C (61°F) and nights around 10°C (50°F). Quite a bit of rainfall is expected, around 97 mm (3.8 in), so pack an umbrella.

Rainfall in Newhaven in September

Climate statistics over the past 30 years suggest around 11 days of rain, with 97 mm (3.8 in) average for the month. When it rains this month, it tends to come down fairly heavily. Showers can be substantial even if they don't last all day.

Temperature in Newhaven in September

If you're visiting Newhaven in September, expect highs of 16°C (61°F) and overnight lows around 10°C (50°F). A light jacket or extra layer can be useful, especially outside the warmest hours of the day. With overnight lows of 10°C (50°F), nights are cold. The cold air does make for deep, comfortable sleep if you have enough blankets.

If you prefer dry days with pleasant temperatures, September may not be the ideal month to visit Newhaven. Our weather planner can help you explore destinations with more pleasant weather conditions.