Marathon Weather in May

What's the weather like in Marathon (Ontario) in May 2024?

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

May is in the spring in Marathon and is typically the 5th warmest month of the year. Daytime maximum temperatures average around a cool 13°C (55°F), whilst at night 2°C (35°F) is normal.

Marathon weather averages (imperial / metric)
Daytime temperature 12.9°C 55.2°F
Nightly temperature 1.9°C 35.4°F
Average temperature 7.4°C 45.3°F
Daily sunshine 8 hrs
Avg rainfall 65 mm 2.5 ins
Rainy days 10 days
Sea temperature 2.4°C 36.4°F
Humidity 67%
Windspeed 14.4kph 9 mph

On average May is the 5th driest month of the year in Marathon with around 65mm 2.5 inches of rain making it a reasonably dry time to visit. This rainfall is typically spread over 10 days, although this may vary considerably.

On the flip side this corresponds to an average of 8 hours of sunshine per day.

May temperatures in Marathon

Marathon average temperature in May

May rainfall

Marathon average rain in May

May hourly sunshine

Marathon 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 Marathon in May 2024.

Other monthly averages

Best places to visit in May

UV index Best time to go?

Marathon weather stats

Marathon weather statistics
Hottest month: August 18.9°C 66°F
Driest month: February 52mm 2ins
Sunniest month: July 9.2hrs
Coldest month: January -9.1°C 15.6°F
Wettest month: September 95mm 3.7ins
Map showing location of Marathon (48.7501, -86.43322) Marathon map pin © Google

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