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Hourly Forecast
Daylight Hours
06:38
Sunrise
19:00
Sunset
Moon
Waxing Crescent
11:59
Moonrise
20:07
Moonset
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Weather in Harwich today, September 15, 2026
Harwich stays under cloudy skies on September 15, 2026, with only brief brighter breaks. Plan for a day that feels grey more often than open.
The temperature range runs from about 15°C up to 23°C. The air stays humid, with relative humidity between 54% and 69% and the peak around 23:00. Winds stay light, near 5.2 km/h by 13:00, so the day feels still more than breezy.
The afternoon keeps an overcast feel, as cloud reaches about 85% around 13:00. Outdoor plans may still want a flexible backup. Horizontal visibility holds close to 16.1 km. Sunrise is at 06:38 and sunset at 19:00, giving 12 hours 22 minutes of sunlight today.
The practical takeaway for Harwich on September 15, 2026 is a cloudy day that stays usable, just not particularly bright, around 23°C.
Frequently asked questions about weather in Harwich
How warm does it get in Harwich?
The warmest month in Harwich is August, with average high temperatures of 21°C. The average temperature during this period is around 18°C.
How cold does it get in Harwich?
The coldest month in Harwich is January, with average low temperatures of 3°C. The average temperature during this period is around 5°C.
What is the wettest time of year in Harwich?
The wettest month in Harwich is October, with an average of 79mm of precipitation.
What is the driest time of year in Harwich?
The driest month in Harwich is April, with an average of 39mm of precipitation.
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