Cairnryan Weather in May

What's the weather like in Cairnryan (Scotland) in May 2025?

The climate in Cairnryan during May can be summarized as cool and reasonably dry.

May is in the spring in Cairnryan and is typically the 6th warmest month of the year. Daytime maximum temperatures average around a cool 13°C (56°F), whilst at night 6°C (43°F) is normal.

Cairnryan weather averages (imperial / metric)
Daytime temperature 13.4°C 56.1°F
Nightly temperature 6.2°C 43.2°F
Average temperature 9.8°C 49.6°F
Daily sunshine 6.9 hrs
Avg rainfall 67 mm 2.6 ins
Rainy days 16 days
Sea temperature 10°C 49.9°F
Humidity 83%
Windspeed 18.4kph 11 mph

On average May is the driest month of the year in Cairnryan with around 67mm 2.6 inches of rain making it a reasonably dry 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 6.9 hours of sunshine per day.

May temperatures in Cairnryan

Cairnryan average temperature in May

May rainfall

Cairnryan average rain in May

May hourly sunshine

Cairnryan 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 Cairnryan in May 2024.

Other monthly averages

Best places to visit in May

UV index Best time to go?

Cairnryan weather stats

Cairnryan weather statistics
Hottest month: July 17°C 62.6°F
Driest month: May 67mm 2.6ins
Sunniest month: May 6.9hrs
Coldest month: February 6.2°C 43.2°F
Wettest month: October 135mm 5.3ins
Map showing location of Cairnryan (54.97104, -5.01982) Cairnryan map pin © Google

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