Harwich Weather in September

September in Harwich averages 19°C (66°F) during the day and 14°C (57°F) at night. Quite a bit of rainfall is typical this month, with around 63 mm (2.5 in) on average. An umbrella is a good idea.

Rainfall in Harwich in September

Historically, September sees about 11 days of rain, with a monthly average of 63 mm (2.5 in). The rainfall pattern this month is fairly balanced. Showers tend to be moderate rather than extreme.

Temperature in Harwich in September

In September, Harwich gets pleasant temperatures, with highs of 19°C (66°F). Nights cool to around 14°C (57°F). During September, the summer season is in full swing. A light jacket or extra layer can be useful, especially outside the warmest hours of the day. Nights cool down to 14°C (57°F), so a light jacket or extra layer is useful once the sun goes down. On the plus side, the cooler nights make for comfortable sleeping conditions.

Sunshine in Harwich in September

You can expect a moderate amount of sunlight, with approximately 146 hours. This means a pleasant mix of sun and overcast.

For Harwich itself, July and August generally stand out with the best circumstances. If you're seeking pleasant, dry and sunny weather somewhere else in the world, our weather planner can help you explore other options.