Greenock Weather & Climate: Best Time to Visit
Temperatures in Greenock, Strathclyde, United Kingdom, vary greatly throughout the year. July is the hottest month at 19°C (66°F), while December is the coldest at 8°C (46°F).
The city has a wet climate, receiving around 1716 mm (68 in) of rain/snowfall per year. January is the wettest month. May is the sunniest month, averaging 6.3 hours of sunshine per day.
Monthly Temperature in Greenock
The climate in Greenock is known for significant temperature differences throughout the year, making the weather dynamic. On average, daytime temperatures range from a pleasant 19°C (66°F) in July to a chilly 8°C (46°F) in December.
Nighttime temperatures range from 11°C (52°F) in July to 2°C (36°F) in December.Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Greenock
Greenock has a notably wet climate with abundant precipitation, recording 1716 mm (68 in) of rain/snowfall per year. The wettest period in Greenock occurs in January, which receives around 177 mm (7 in) of precipitation. During the driest month, April, Greenock experiences high rainfall, totaling 109 mm (4.3 in). The consistent precipitation levels throughout the year contribute to a relatively stable climate. For more details, please visit our Greenock Precipitation page.
The mean monthly precipitation over the year, including rain, hail, and snow
The average number of days each month with precipitation
Sunshine Hours in Greenock
In Greenock, summer days are longer and more sunny, with daily sunshine hours peaking at 6.3 hours in May. As the darker season arrives, the brightness of the sun becomes less. January sees a soft sun for only 1.2 hours per average day.
Visit our detailed sunshine hours page for more information.
Monthly hours of sunshine
Daily hours of sunshine
Daily percentage of sunshine
Humidity in Greenock by Month
The relative humidity is high throughout the year in Greenock.
The city experiences its highest humidity in January, reaching 87%. In May, the humidity drops to its lowest level at 68%. What does this mean? Read our detailed page on humidity levels for further details.
Relative humidity over the year
Greenock 3-Day Forecast
Check the conditions for any month of the year.
Best Time to Visit Greenock
Greenock's weather is most enjoyable during June, July, August and September, with comfortable temperatures from 17°C (62°F) to 19°C (66°F). The moderate conditions ensure pleasant weather for exploring the area. Expect varied weather during this period with rainfall between 117 mm (4.6 in) and 144 mm (5.7 in), providing a good balance of sunny and rainy days.The wettest months are January, February, October, November and December, when precipitation is at its highest. Looking for inspiration on where to travel this year? We have a tool that recommends destinations based on your ideal conditions. Find out where to go with our weather planner.
