See exactly when rain will start and stop with a minute-by-minute precipitation nowcast for the next hour.
Compare today's weather with yesterday's data and track temperature trends over time.
Hourly Forecast
Daylight Hours
07:00
Sunrise
19:26
Sunset
Moon
Waxing Crescent
12:47
Moonrise
20:08
Moonset
Daily Forecast
Today
Wednesday
Thursday
Friday
Saturday
Sunday
Monday
Tuesday
Wednesday
Thursday
Air Quality Data Available
Upgrade to access real-time air quality data for Port Glasgow.
Resources
UV Index
Humidity
Weather in Port Glasgow today, September 15, 2026
Conditions in Port Glasgow on September 15, 2026 favour clear skies, so the day opens with a fine, sunny outlook. Any interruptions to the blue should be brief rather than lasting.
The temperature range runs from about 13°C up to 17°C. Expect humidity between 77% and 87%, most humid near 21:00. Expect gentle winds, highest near 14:00 at 8.0 km/h.
Expect the wet theme to continue later, as rain odds reach 98% near 13:00. Cloud amounts hold near 100% around 12:00. Visibility stays generally good near 30.2 km on average, though it can drop toward 25.6 km in thicker cloud or showers. Expect sunrise at 07:00, sunset at 19:26, and 12 hours 26 minutes of sunlight today overall.
In short, treat September 15, 2026 in Port Glasgow as a damp day: pack covers, watch the wetter hours, and expect a high near 17°C.
Frequently asked questions about weather in Port Glasgow
How warm does it get in Port Glasgow?
The warmest month in Port Glasgow is July, with average high temperatures of 18°C. The average temperature during this period is around 15°C.
How cold does it get in Port Glasgow?
The coldest month in Port Glasgow is January, with average low temperatures of 2°C. The average temperature during this period is around 4°C.
What is the wettest time of year in Port Glasgow?
The wettest month in Port Glasgow is October, with an average of 188mm of precipitation.
What is the driest time of year in Port Glasgow?
The driest month in Port Glasgow is April, with an average of 80mm of precipitation.
Explore more weather forecasts
- Greenock, Scotland
- London, England
- Dumbarton, Scotland
- Birmingham, England
- Vale of Leven, Scotland
- Liverpool, England
- Helensburgh, Scotland
- Glasgow, Scotland
- Gourock, Scotland
- Manchester, England
- Erskine, Scotland
- Sheffield, England
- Johnstone, Scotland
- Leeds, England
- Clydebank, Scotland
- Edinburgh, Scotland