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Gretna Green Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Gretna Green.
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Climate overview of Gretna Green
The climate in Gretna Green, Dumfries and Galloway, United Kingdom, is marked by large temperature swings across the seasons, ranging from 20°C (68°F) in July to 8°C (46°F) in January.
The city has a wet climate, receiving around 1086 mm (43 in) of rain/snowfall per year. Despite the high annual total, it has pleasant summers and cold winters. December is the wettest month. The most sunshine falls in May, with an average of 5.4 hours of daily sunshine.
Gretna Green Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Gretna Green - and find the best time to visit.
Monthly Temperature in Gretna Green
In Gretna Green, temperatures differ significantly between summer and winter months. On average, daytime temperatures range from a pleasant 20°C (68°F) in July to a chilly 8°C (46°F) in January.
Nighttime temperatures range from 12°C (54°F) in July to 2°C (36°F) in January.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Gretna Green
Gretna Green experiences significant rain/snowfall throughout the year, averaging 1086 mm (43 in) of precipitation annually. The wettest period in Gretna Green occurs in December, which receives around 107 mm (4.2 in) of precipitation. During the driest month, April, Gretna Green experiences moderate rainfall, totaling 75 mm (3 in). The consistent precipitation levels throughout the year contribute to a relatively stable climate. For more details, please visit our Gretna Green 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 Gretna Green
In Gretna Green, summer days are longer and more sunny, with daily sunshine hours peaking at 5.4 hours in May. As the darker season arrives, the brightness of the sun becomes less. January sees a soft sun for only 1.3 hours per average day.
Visit our detailed sunshine hours page for more information.
Monthly hours of sunshine
Data from: Eskdalemuir, the United Kingdom (35 KM, 22 Miles).
Daily hours of sunshine
Data from: Eskdalemuir, the United Kingdom (35 KM, 22 Miles).
Daily percentage of sunshine
Data from: Eskdalemuir, the United Kingdom (35 KM, 22 Miles).
Humidity in Gretna Green by Month
The city experiences its highest humidity in December, reaching 90%. In May, the humidity drops to its lowest level at 70%. What does this mean? Read our detailed page on humidity levels for further details.
Relative humidity over the year
Data from: Eskdalemuir, the United Kingdom (35 KM, 22 Miles).
Best Time to Visit Gretna Green
The most comfortable overall weather for exploring Gretna Green is usually found in July and August. Conditions are generally least comfortable in January, February, March, November and December.
Monthly ratings reflect general weather comfort, based on daytime temperature and rainfall. Swimming and winter conditions are highlighted separately where relevant.
Jan
wet
Feb
cold
Mar
cold
Apr
mixed
May
good
Jun
very good
Jul
excellent
Aug
excellent
Sep
good
Oct
mixed
Nov
cold
Dec
wet
- Best overall: July and August
- Warmest weather: July and August
- Most sunshine: May and June
- Seasonal pattern: Pleasant summers and cold winters
Frequently asked questions about the climate in Gretna Green
What is the best time to visit Gretna Green?
July and August typically offer the most optimal weather in Gretna Green. In contrast, January, February, March, November and December tend to have less optimal conditions. Gretna Green has pleasant summers and cold winters.
What temperatures can I expect in Gretna Green?
Daytime highs range from 8°C (46°F) in January to 20°C (68°F) in July. Nighttime lows range from 2°C (36°F) to 12°C (54°F). Temperatures vary considerably through the year.
How much rain does Gretna Green get?
Annual rainfall is around 1086 mm (43 in). December is the wettest month with 107 mm (4.2 in), while April is the driest with 75 mm (3 in).
How sunny is Gretna Green?
Gretna Green receives around 1,189 hours of sunshine per year. May is the sunniest month with 161 hours, while January is the cloudiest with just 39 hours.
Gretna Green 3-Day Forecast
Gretna Green on the map
Gretna Green is highlighted - select any city to see its climate.
Popular in October
Where to go in October - average daytime high across popular destinations.
London
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15°C (59°F) Edinburgh13°C (55°F) Glasgow14°C (57°F) Bucket list
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