See exactly when rain will start and stop with a minute-by-minute precipitation nowcast for the next hour.
18°
Partly Cloudy
Feels Like: 18°
Min: 13°
Max: 19°
The next few hours will be overcast, with today reaching 19°C and dropping to 13°C. The coming days will be partly cloudy
Compare today's weather with yesterday's data and track temperature trends over time.
Hourly Forecast
Daylight Hours
07:00
Sunrise
19:21
Sunset
Moon
Waxing Crescent
12:14
Moonrise
20:37
Moonset
Daily Forecast
Today
Wednesday
Thursday
Friday
Saturday
Sunday
Monday
Tuesday
Wednesday
Thursday
Air Quality Data Available
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UV Index
Humidity
Weather in Plymouth today, September 15, 2026
Plymouth stays under cloudy skies on September 15, 2026, with only brief brighter breaks. Plan for a day that feels grey more often than open.
Temperatures climb from an overnight low near 13°C toward a daytime high of about 19°C. Moisture in the air spans 63%-91%, with the highest values around 23:00. A lighter breeze peaks around 16:00 near 5.6 km/h.
Expect a more open afternoon, with limited cloud around 58% by 16:00. Residual damp risk should be lower than earlier. Visibility stays generally good near 32.8 km on average, though it can drop toward 21.5 km in thicker cloud or showers. Daylight runs from 07:00 to 19:21, lasting 12 hours 21 minutes of sunlight today.
Taken together, overcast skies in Plymouth on September 15, 2026 favour indoor or covered options, with temperatures near 19°C.
Frequently asked questions about weather in Plymouth
How warm does it get in Plymouth?
The warmest month in Plymouth is August, with average high temperatures of 18°C. The average temperature during this period is around 17°C.
How cold does it get in Plymouth?
The coldest month in Plymouth is January, with average low temperatures of 7°C. The average temperature during this period is around 8°C.
What is the wettest time of year in Plymouth?
The wettest month in Plymouth is November, with an average of 129mm of precipitation.
What is the driest time of year in Plymouth?
The driest month in Plymouth is May, with an average of 58mm of precipitation.
