Cilybebyll Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Cilybebyll.
Climate overview of Cilybebyll
The climate in Cilybebyll, Glamorgan, 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 receives considerable rain/snowfall, with around 1397 mm (55 in) annually. December is the wettest month. It has pleasant summers and cold winters. Sunshine peaks in July, when the city sees around 6.7 hours of sunshine per day.
Cilybebyll Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Cilybebyll - and find the best time to visit.
Monthly Temperature in Cilybebyll
In Cilybebyll, temperatures differ significantly between summer and winter months. Typically, average maximum daytime temperatures range from a pleasant 20°C (68°F) in July to a chilly 8°C (46°F) in the coolest month, January.
Nights vary from 12°C (54°F) in July to around 3°C (37°F) during the colder months.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Cilybebyll
Cilybebyll experiences significant rain/snowfall throughout the year, averaging 1397 mm (55 in) of precipitation annually. Precipitation levels in Cilybebyll remain relatively steady throughout the year. December has the most rain, with 148 mm (5.8 in) over 20 days. In the driest month April, this drops slightly to 91 mm (3.6 in), making the city's climate fairly predictable. For more details, please visit our Cilybebyll 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 Cilybebyll
For those who appreciate different seasons, Cilybebyll serves as an ideal destination. Expect longer, more sun-filled days in July with an average of 6.7 hours of sunshine daily, and embrace the darker days in December, offering only 1.6 hours of daily sunlight.
Visit our detailed sunshine hours page for more information.
Monthly hours of sunshine
Daily hours of sunshine
Daily percentage of sunshine
Humidity in Cilybebyll by Month
The city experiences its highest humidity in January, reaching 89%. In June, the humidity drops to its lowest level at 73%. What does this mean? Read our detailed page on humidity levels for further details.
Relative humidity over the year
Best Time to Visit Cilybebyll
Monthly ratings reflect general weather comfort, based on daytime temperature and rainfall. Swimming and winter conditions are highlighted separately where relevant.
- Best overall: July and August
- Warmest weather: July and August
- Most sunshine: May, June and July
- Seasonal pattern: Pleasant summers and cold winters
Frequently asked questions about the climate in Cilybebyll
What is the best time to visit Cilybebyll?
July and August typically offer the most optimal weather in Cilybebyll. In contrast, January, February, November and December tend to have less optimal conditions. Cilybebyll has pleasant summers and cold winters.
What temperatures can I expect in Cilybebyll?
Daytime highs range from 8°C (46°F) in January to 20°C (68°F) in July. Nighttime lows range from 3°C (37°F) to 12°C (54°F). Temperatures vary considerably through the year.
How much rain does Cilybebyll get?
Annual rainfall is around 1397 mm (55 in). December is the wettest month with 148 mm (5.8 in), while April is the driest with 91 mm (3.6 in).
How sunny is Cilybebyll?
Cilybebyll receives around 1,573 hours of sunshine per year. July is the sunniest month with 202 hours, while December is the cloudiest with just 49 hours.
Cilybebyll 3-Day Forecast
Cilybebyll on the map
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