Porthmadog Weather in May

What's the weather like in Porthmadog (Wales) in May 2024?

The climate in Porthmadog during May can be summarized as mild and a little damp.

May is in the spring in Porthmadog and is typically the 6th warmest month of the year. Daytime maximum temperatures average around a cool 14°C (58°F), whilst at night 6°C (43°F) is normal.

Porthmadog weather averages (imperial / metric)
Daytime temperature 14.2°C 57.5°F
Nightly temperature 6.3°C 43.3°F
Average temperature 10.2°C 50.4°F
Daily sunshine 6.7 hrs
Avg rainfall 96 mm 3.8 ins
Rainy days 16 days
Sea temperature 10.7°C 51.2°F
Humidity 81%
Windspeed 17.3kph 11 mph

On average May is the driest month of the year in Porthmadog with around 96mm 3.8 inches of rain making it a a little damp time to visit. This rainfall is typically spread over 16 days, although this may vary considerably.

On the flip side this corresponds to an average of 6.7 hours of sunshine per day.

May temperatures in Porthmadog

Porthmadog average temperature in May

May rainfall

Porthmadog average rain in May

May hourly sunshine

Porthmadog average rain in May

The data used in these monthly averages covers a period of over 100 years right up until last year. As such they are a valid prediction of what to expect for the weather in Porthmadog in May 2024.

Other monthly averages

Best places to visit in May

UV index Best time to go?

Porthmadog weather stats

Porthmadog weather statistics
Hottest month: July 18°C 64.4°F
Driest month: May 96mm 3.8ins
Sunniest month: May 6.7hrs
Coldest month: February 6.5°C 43.7°F
Wettest month: December 202mm 8ins
Map showing location of Porthmadog (52.92924, -4.13137) Porthmadog map pin © Google

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