Cemaes Bay Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Cemaes Bay.
Climate overview of Cemaes Bay
Cemaes Bay, Gwynedd, United Kingdom, experiences moderate temperature changes through the seasons. August is the warmest month with daytime highs of 19°C (66°F), while February is the coolest at 9°C (48°F).
The city has a wet climate, receiving around 1064 mm (42 in) of rainfall per year. November is the wettest month.
Cemaes Bay Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Cemaes Bay - and find the best time to visit.
Monthly Temperature in Cemaes Bay
In Cemaes Bay, seasonal changes bring about a moderate variation in temperatures. On average, daytime temperatures range from a pleasant 19°C (66°F) in August to a chilly 9°C (48°F) in February.
Nighttime temperatures range from 14°C (57°F) in August to 5°C (41°F) in February.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Cemaes Bay
Cemaes Bay has a relatively rainy climate with high precipitation levels, averaging 1064 mm (42 in) of rainfall annually. The amount of precipitation varies moderately throughout the year. The wettest month, November, sees around 126 mm (5 in) of rainfall, perfect for those who enjoy a bit of rain now and then. The driest month, May, still receives a respectable 63 mm (2.5 in) of rainfall. For more details, please visit our Cemaes Bay Precipitation page.
The mean monthly precipitation over the year, including rain, hail, and snow
The average number of days each month with precipitation
Best Time to Visit Cemaes Bay
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, August and September
Frequently asked questions about the climate in Cemaes Bay
What is the best time to visit Cemaes Bay?
July and August typically offer the most optimal weather in Cemaes Bay. In contrast, January, February, March, November and December tend to have less optimal conditions.
What temperatures can I expect in Cemaes Bay?
Daytime highs range from 9°C (48°F) in February to 19°C (66°F) in August. Nighttime lows range from 5°C (41°F) to 14°C (57°F).
How much rain does Cemaes Bay get?
Annual rainfall is around 1064 mm (42 in). November is the wettest month with 126 mm (5 in), while May is the driest with 63 mm (2.5 in).
Cemaes Bay 3-Day Forecast
Cemaes Bay on the map
Cemaes Bay is highlighted - select any city to see its climate.
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Where to go in August - average daytime high across popular destinations.
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