Tal-y-llyn Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Tal-y-llyn.
Climate overview of Tal-y-llyn
Tal-y-llyn, Gwynedd, United Kingdom, sees big temperature differences between seasons, with July peaking at 19°C (66°F) and January dropping to 8°C (46°F).
The city has a wet climate, receiving around 1346 mm (53 in) of rain/snowfall per year. Despite the high annual total, it has pleasant summers and cold winters. December is the wettest month. Sunshine peaks in May, when the city sees around 5.6 hours of sunshine per day.
Tal-y-llyn Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Tal-y-llyn - and find the best time to visit.
Monthly Temperature in Tal-y-llyn
Visitors to Tal-y-llyn can expect significant temperature changes throughout the year. On average, daytime temperatures range from a pleasant 19°C (66°F) in July to a chilly 8°C (46°F) in January.
Nighttime temperatures range from 12°C (54°F) in July to 3°C (37°F) in January.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Tal-y-llyn
Tal-y-llyn is known for its substantial rain/snowfall, with annual precipitation reaching 1346 mm (53 in). The amount of precipitation varies moderately throughout the year. The wettest month, December, sees around 149 mm (5.9 in) of rainfall, perfect for those who enjoy a bit of rain now and then. The driest month, April, still receives a respectable 87 mm (3.4 in) of rainfall. For more details, please visit our Tal-y-llyn 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 Tal-y-llyn
In Tal-y-llyn, summer days are longer and more sunny, with daily sunshine hours peaking at 5.6 hours in May. As the darker season arrives, the brightness of the sun becomes less. December sees a soft sun for only 0.9 hours per average day.
Visit our detailed sunshine hours page for more information.
Monthly hours of sunshine
Daily hours of sunshine
Best Time to Visit Tal-y-llyn
Monthly ratings reflect general weather comfort, based on daytime temperature and rainfall. Swimming and winter conditions are highlighted separately where relevant.
- Best overall: June and July
- Warmest weather: June, July and August
- Most sunshine: May
- Seasonal pattern: Pleasant summers and cold winters
Frequently asked questions about the climate in Tal-y-llyn
What is the best time to visit Tal-y-llyn?
June and July typically offer the most optimal weather in Tal-y-llyn. In contrast, January, February, March, November and December tend to have less optimal conditions. Tal-y-llyn has pleasant summers and cold winters.
What temperatures can I expect in Tal-y-llyn?
Daytime highs range from 8°C (46°F) in January to 19°C (66°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 Tal-y-llyn get?
Annual rainfall is around 1346 mm (53 in). December is the wettest month with 149 mm (5.9 in), while April is the driest with 87 mm (3.4 in).
How sunny is Tal-y-llyn?
Tal-y-llyn 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.
Tal-y-llyn 3-Day Forecast
Tal-y-llyn 3-Day Forecast
Tal-y-llyn on the map
Tal-y-llyn 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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