Llanfairpwllgwyngyll Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Llanfairpwllgwyngyll.
Climate overview of Llanfairpwllgwyngyll
Llanfairpwllgwyngyll, Gwynedd, United Kingdom, experiences moderate temperature changes through the seasons. July is the warmest month with daytime highs of 20°C (68°F), while January is the coolest at 9°C (48°F).
Rainfall is high, totalling around 1173 mm (46 in) per year. December is the wettest month and May the driest. The city also experiences pleasant summers and cold winters. The sunniest month is May, with 5.6 hours of sunshine per day on average.
Llanfairpwllgwyngyll Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Llanfairpwllgwyngyll - and find the best time to visit.
Monthly Temperature in Llanfairpwllgwyngyll
In Llanfairpwllgwyngyll, seasonal changes bring about a moderate variation in temperatures. 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 13°C (55°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 Llanfairpwllgwyngyll
Llanfairpwllgwyngyll has a relatively rainy climate with high precipitation levels, averaging 1173 mm (46 in) of rainfall annually. Year-round, Llanfairpwllgwyngyll has a balanced climate with minimal variation in precipitation. The difference between the wettest month, December, with 119 mm (4.7 in), and the driest month, May, with 82 mm (3.2 in), is minimal. For more details, please visit our Llanfairpwllgwyngyll 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 Llanfairpwllgwyngyll
Seasonal changes in sunshine hours are quite dramatic in Llanfairpwllgwyngyll. While May receives considerable daily sunshine with up to 5.6 hours, December marks the darkest time of the year, where sunshine is scarce with only 0.9 hours of sunlight per day.
Visit our detailed sunshine hours page for more information.
Monthly hours of sunshine
Daily hours of sunshine
Best Time to Visit Llanfairpwllgwyngyll
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
- Seasonal pattern: Pleasant summers and cold winters
Frequently asked questions about the climate in Llanfairpwllgwyngyll
What is the best time to visit Llanfairpwllgwyngyll?
July and August typically offer the most optimal weather in Llanfairpwllgwyngyll. In contrast, January, February, November and December tend to have less optimal conditions. Llanfairpwllgwyngyll has pleasant summers and cold winters.
What temperatures can I expect in Llanfairpwllgwyngyll?
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 13°C (55°F).
How much rain does Llanfairpwllgwyngyll get?
Annual rainfall is around 1173 mm (46 in). December is the wettest month with 119 mm (4.7 in), while May is the driest with 82 mm (3.2 in).
How sunny is Llanfairpwllgwyngyll?
Llanfairpwllgwyngyll receives around 1,192 hours of sunshine per year. May is the sunniest month with 169 hours, while December is the cloudiest with just 26 hours.
Llanfairpwllgwyngyll 3-Day Forecast
Llanfairpwllgwyngyll on the map
Llanfairpwllgwyngyll is highlighted - select any city to see its climate.
Popular this month
Where to go in August - average daytime high across popular destinations.
Bucket list
Need travel inspiration? Check out our bucket list articles and be inspired.
Hike the South West Coast Path
The South West Coast Path means breathtaking nature, kind people and delicious food everywhere you go. It is an unforgettable experience and you need to add it to your bucket list.
Welcome to Totnes, the hidden treasure of South Devon
Totnes is a place where historical richness fuses effortlessly with a vibrant alternative culture and breathtaking natural surroundings. The town pulses with an amazing community spirit that you'll feel around every corner.
London's coolest neighborhoods you'll want to visit
Discover the 6 coolest neighborhoods in London for your trip! Explore vibrant Shoreditch, lively Soho, alternative Camden, and many more.
10 cities you should definitely visit in the UK
Discover the top 10 most fun and alternative cities in the UK, rich in art, culture, and adventure. Explore vibrant neighborhoods and unique places.