Johnstone Weather and Climate: A Comprehensive Guide
The temperature in Johnstone can vary quite a bit throughout the year.
Temperatures can be pleasant during the warmest months,
and cold during the cooler months.
It also has a notably wet climate with much precipitation.
Let's now guide you through the climate details for a complete overview.
Average maximum day and minimum night temperature
Visitors to Johnstone can expect significant temperature changes throughout the year. Average maximum daytime temperatures range from a pleasant 19°C in July, the warmest time of the year, to a chilly 8°C during cooler months like December.
At night, temperatures typically drop to an average of around 2°C during these months. Check out our detailed temperature page for more information.Temperature ranges by month
Precipitation and rainy days
Johnstone is known for its substantial rain/snowfall, with annual precipitation reaching 1378 mm. Year-round, Johnstone has a balanced climate with minimal variation in precipitation. The difference between the wettest month, January, with 141 mm, and the driest month, May, with 88 mm, is minimal.The mean monthly precipitation over the year, including rain, hail and snow
The average number of days each month with precipitation
Sunshine over the year
Seasonal changes in sunshine hours are quite dramatic in Johnstone. While May receives considerable daily sunshine with up to 6.3 hours, January marks the darkest time of the year, where sunshine is scarce with only 1.2 hours of sunlight per day. Visit our detailed sunshine hours page for more information.Monthly hours of sunshine
Daily hours of sunshine
Daily percentage of sunshine
Average humidity
The relative humidity is high throughout the year in Johnstone.
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
overcast and no rain overcast and heavy rain overcast and no rainForecast for Johnstone
3 m/s
10 m/s
5 m/s
Select a Month of Interest
Check the conditions for any month of the year.
The best time of year to visit Johnstone in the United Kingdom
Other facts from our historical weather data:July has an average maximum temperature of 19°C and is the warmest month of the year.
The coldest month is December with an average maximum temperature of 8°C.
January tops the wettest month list with 141 mm of rainfall.
May is the driest month with 88 mm of precipitation.
May is the sunniest month with an average of 188 hours of sunshine.
No idea where to travel to this year? We have a tool that recommends destinations based on your ideal conditions. Find out where to go with our weather planner.
