Conwy Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Conwy.
Climate overview of Conwy
Conwy, Gwynedd, United Kingdom, experiences significant temperature variation throughout the year. Summers bring daytime highs of 20°C (68°F) in July, while winters cool to 9°C (48°F) in January.
With around 1078 mm (42 in) of annual rainfall, Conwy has a notably wet climate. However, this rainfall is not evenly distributed, the city has pleasant summers and cold winters. The wettest month is December. The sunniest month is May, with 5.6 hours of sunshine per day on average.
Conwy Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Conwy - and find the best time to visit.
Monthly Temperature in Conwy
Depending on the time of the year, temperatures range from pleasant to chilly in Conwy. Average daytime temperatures reach a pleasant 20°C (68°F) in July. In January, the coolest month of the year, temperatures drop to a chilly 9°C (48°F).
At night, temperatures range from around 13°C (55°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 Conwy
Conwy has a relatively rainy climate with high precipitation levels, averaging 1078 mm (42 in) of rainfall annually. Despite minor fluctuations, Conwy enjoys fairly consistent precipitation throughout the year. In December, you can expect around 107 mm (4.2 in) of precipitation, while in May, Conwy receives about 77 mm (3 in). For more details, please visit our Conwy 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 Conwy
Conwy can be enjoyed more throughout the sunniest month of May under a blue sky, with approximately 5.6 hours of sunshine daily. In contrast, the city experiences much darker days in December, 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 Conwy
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 Conwy
What is the best time to visit Conwy?
July and August typically offer the most optimal weather in Conwy. In contrast, January, February, November and December tend to have less optimal conditions. Conwy has pleasant summers and cold winters.
What temperatures can I expect in Conwy?
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). Temperatures vary considerably through the year.
How much rain does Conwy get?
Annual rainfall is around 1078 mm (42 in). December is the wettest month with 107 mm (4.2 in), while May is the driest with 77 mm (3 in).
How sunny is Conwy?
Conwy 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.
Conwy 3-Day Forecast
Conwy on the map
Conwy is highlighted - select any city to see its climate.
Popular this month
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