Caernarfon Climate by Month
The temperature in Caernarfon varies moderately throughout the year.
The temperatures shift from pleasant
to cold.
It is also known for its large amounts of rainfall.
Now, let’s explore all the climate details to give you a full picture.
Average day and night temperature
In Caernarfon, seasonal changes bring about a moderate variation in temperatures. Typically, daytime temperatures range from a pleasant 19°C in July to a chilly 9°C in the coolest month, February. Nights are cooler, with temperatures generally dropping to 4°C, particularly during the colder months.
The mean minimum and maximum temperatures throughout the year
Precipitation and rainy days
Caernarfon has a relatively rainy climate with high precipitation levels, averaging 1339 mm of rainfall annually. Caernarfon offers a pleasant mix of wetter and slightly drier months. The difference in precipitation between December (144 mm) and May (86 mm) is not too significant, making the climate enjoyable for visitors and residents alike.The mean monthly precipitation over the year, including rain, hail and snow
The average number of days each month with precipitation
Sunshine over the year
For those who appreciate different seasons, Caernarfon serves as an ideal destination. Expect longer, more sun-filled days in May with an average of 5.6 hours of sunshine daily, and embrace the darker days in December, offering only 0.9 hours of daily sunlight.Monthly hours of sunshine
Daily hours of sunshine
The best time of year to visit Caernarfon in the United Kingdom
Other facts from our historical weather data:July has an average maximum temperature of 19°C and is the warmest month of the year.
The coldest month is February with an average maximum temperature of 9°C.
December tops the wettest month list with 144 mm of rainfall.
May is the driest month with 86 mm of precipitation.
May is the sunniest month with an average of 169 hours of sunshine.
No idea where to travel to this year? We have a tool that recommends destinations based on your ideal conditions. Find out where to go with our weather planner.
