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Hourly Forecast
Daylight Hours
06:39
Sunrise
18:52
Sunset
Moon
Waxing Crescent
12:35
Moonrise
20:53
Moonset
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Today
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Saturday
Sunday
Monday
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Friday
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Weather in Plymouth tomorrow, September 17, 2026
Cloud cover dominates in Plymouth on September 17, 2026, keeping sunshine limited. Expect a grey, overcast feel rather than long bright spells. Cloud leads the morning, peaking close to 100% near 09:00. Sunshine has little room until later in the day.
Temperatures climb from an overnight low near 16°C toward a daytime high of about 25°C. Moisture in the air spans 78%-97%, with the highest values around 04:00. Winds stay light, near 3.1 km/h by 14:00, so the day feels still more than breezy.
The afternoon keeps an overcast feel, as cloud reaches about 100% around 13:00. Outdoor plans may still want a flexible backup. Expect visibility near 15.0 km, with poorer spells close to 13.0 km. The sun rises at 06:40 and sets at 18:51, for a total of 12 hours 10 minutes of sunlight today.
Taken together, overcast skies in Plymouth on September 17, 2026 favour indoor or covered options, with temperatures near 25°C.
Frequently asked questions about weather in Plymouth
How warm does it get in Plymouth?
The warmest month in Plymouth is July, with average high temperatures of 28°C. The average temperature during this period is around 23°C.
How cold does it get in Plymouth?
The coldest month in Plymouth is January, with average low temperatures of -5°C. The average temperature during this period is around -1°C.
What is the wettest time of year in Plymouth?
The wettest month in Plymouth is July, with an average of 150mm of precipitation.
What is the driest time of year in Plymouth?
The driest month in Plymouth is November, with an average of 86mm of precipitation.
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