Crumlin Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Crumlin.
Climate overview of Crumlin
Crumlin, Antrim County, United Kingdom, has a moderate seasonal temperature range, with July reaching 20°C (68°F) and January cooling to 9°C (48°F).
Crumlin sees a moderate amount of rainfall, totalling around 970 mm (38 in) per year. It experiences pleasant summers and cold winters, creating some seasonal variation. The most sunshine falls in May, with an average of 6.1 hours of daily sunshine.
Crumlin Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Crumlin - and find the best time to visit.
Monthly Temperature in Crumlin
The climate in Crumlin experiences moderate temperature changes, with mild shifts between seasons. Average maximum daytime temperatures range from a pleasant 20°C (68°F) in July, the warmest time of the year, to a chilly 9°C (48°F) during cooler months like January.
At night, you can expect temperatures ranging from 12°C (54°F) in July to around 3°C (37°F) during January.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Crumlin
Generally, Crumlin experiences moderate precipitation patterns, averaging 970 mm (38 in) yearly. Year-round, Crumlin has a balanced climate with minimal variation in precipitation. The difference between the wettest month, August, with 91 mm (3.6 in), and the driest month, March, with 68 mm (2.7 in), is minimal. For more details, please visit our Crumlin 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 Crumlin
Seasonal changes in sunshine hours are quite dramatic in Crumlin. While May receives considerable daily sunshine with up to 6.1 hours, December marks the darkest time of the year, where sunshine is scarce with only 1.3 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
Water Temperature in Crumlin
The mean water temperature over the year ranges from 7°C (45°F) in February to 13°C (55°F) in August.
Water temperature over the year
Humidity in Crumlin by Month
The city experiences its highest humidity in September, reaching 91%. In February, the humidity drops to its lowest level at 86%. What does this mean? Read our detailed page on humidity levels for further details.
Relative humidity over the year
Wind Speed in Crumlin
The mean wind speed over the year ranges from 4 m/s (8 knots) in April, May, June, July, August and September to 5 m/s (10 knots) in January, February, March, October, November and December. What does this mean?
The mean monthly wind speed over the year (meters per second)
Best Time to Visit Crumlin
Monthly ratings reflect general weather comfort, based on daytime temperature and rainfall. Swimming and winter conditions are highlighted separately where relevant.
- Best overall: July
- Warmest weather: June, July and August
- Most sunshine: May
- Seasonal pattern: Pleasant summers and cold winters
Frequently asked questions about the climate in Crumlin
What is the best time to visit Crumlin?
July typically offers the most optimal weather in Crumlin. In contrast, January, February and December tend to have less optimal conditions. Crumlin has pleasant summers and cold winters.
What temperatures can I expect in Crumlin?
Daytime highs range from 9°C (48°F) in January to 20°C (68°F) in July. Nighttime lows range from 3°C (37°F) to 12°C (54°F).
How much rain does Crumlin get?
Annual rainfall is around 970 mm (38 in). August is the wettest month with 91 mm (3.6 in), while March is the driest with 68 mm (2.7 in).
How sunny is Crumlin?
Crumlin receives around 1,297 hours of sunshine per year. May is the sunniest month with 184 hours, while December is the cloudiest with just 39 hours.
Crumlin 3-Day Forecast
Crumlin 3-Day Forecast
Crumlin on the map
Crumlin is highlighted - select any city to see its climate.
Popular this month
Where to go in July - average daytime high across popular destinations.
London
23°C (73°F) Bath22°C (72°F) York22°C (72°F) Manchester
21°C (70°F) Edinburgh
19°C (66°F) Glasgow19°C (66°F) Torquay20°C (68°F) Blackpool19°C (66°F) 
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