Gretna Climate by Month
The temperature in Gretna can vary quite a bit throughout the year.
Temperatures can be pleasant during the warmest months,
and cold during the cooler months.
It is also known for its large amounts of rain/snowfall.
Now, let’s break down all the climate details for a clearer picture.
Average day and night temperature
Visitors to Gretna can expect significant temperature changes throughout the year. Typically, daytime temperatures range from a pleasant 20°C in July to a chilly 8°C in the coolest month, January. Nights are cooler, with temperatures generally dropping to 2°C, particularly during the colder months.
The mean minimum and maximum temperatures throughout the year
Precipitation and rainy days
Gretna is known for its substantial rain/snowfall, with annual precipitation reaching 1086 mm. Precipitation levels in Gretna remain relatively steady throughout the year. December has the most rain, with 107 mm over 19 days. In April, this drops slightly to 75 mm, making the city's climate fairly predictable.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
For those who appreciate different seasons, Gretna serves as an ideal destination. Expect longer, more sun-filled days in May with an average of 5.4 hours of sunshine daily, and embrace the darker days in January, offering only 1.3 hours of daily sunlight.Monthly hours of sunshine
Daily hours of sunshine
Daily percentage of sunshine
Average humidity
The relative humidity is high throughout the year in Gretna.
Relative humidity over the year
The best time of year to visit Gretna in the United Kingdom
Other facts from our historical weather data:July has an average maximum temperature of 20°C and is the warmest month of the year.
The coldest month is January with an average maximum temperature of 8°C.
December tops the wettest month list with 107 mm of rainfall.
April is the driest month with 75 mm of precipitation.
May is the sunniest month with an average of 161 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.
