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Caernarfon Weather in May
Caernarfon in May averages 15°C (59°F) during the day and 8°C (46°F) at night. This is the driest month of the year.
Rainfall in Caernarfon in May
With the driest weather of the year, this month is ideal for outdoor fun. You can expect rain on roughly 16 days based on historical data, averaging 86 mm (3.4 in) for the month. The rainfall pattern this month is fairly balanced. Showers tend to be moderate rather than extreme.
Temperature in Caernarfon in May
Expect highs of 15°C (59°F) in Caernarfon in May, with nights dropping to around 8°C (46°F). Conditions are often most pleasant around the middle of the day. With lows around 8°C (46°F), nights are cold. The upside is that cool, crisp nights are often the best for a deep sleep.
Sunshine in Caernarfon in May
The area experiences a moderate amount of sunshine, with approximately 169 hours of sunlight expected. This means a decent mix of sun and overcast.Our weather planner can help you find worldwide destinations with pleasant weather during this period. July typically offers the best weather for Caernarfon.
Caernarfon Temperature in May
Min Temperature
8°C (46°F)
Max Temperature
15°C (59°F)
Chance of Rain
53%
Precipitation
86 mm (3.4 in)
Rainy days
16 days
Sunshine
169 hours *
Percentage Sunshine
*
* Data from: Bala, the United Kingdom (51 KM, 32 Miles).
Caernarfon Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Caernarfon - and find the best time to visit.
Best Places in the United Kingdom in May
Find out more about the weather in the United Kingdom and which places have the best travel conditions in this month. See all of the United Kingdom in May →
perfect weather
pleasant
tolerable
unpleasant
poor
Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).
What to Wear in Caernarfon in May
The weather can swing between comfortable and chilly in May, so flexibility is key. Pack a variety of tops, at least one warm layer, and both shorts and long pants. This gives you options no matter what the day brings. Expect heavy rainfall, so bring good rain protection and waterproof bags. Sunglasses could come in handy during the sunnier parts of your trip.
What To Do in Caernarfon in May
We rated the following activities from 1 (least suitable) to 10 (best) to do.
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Swimming5/10 -
Cycling6/10 -
Walking6/10 -
Camping4/10 -
Outdoor sports9/10
Caernarfon 3-Day Forecast
More climate data for Caernarfon
See the full Caernarfon climate overview or explore weather in the United Kingdom.
Popular in May
Where to go in May - average daytime high across popular destinations.
London
18°C (64°F) Bath17°C (63°F) Manchester
17°C (63°F) York17°C (63°F) Torquay15°C (59°F) Glasgow15°C (59°F) Edinburgh15°C (59°F) Blackpool14°C (57°F) Bucket list
Need travel inspiration? Check out our bucket list articles and be inspired.
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