Cool
Average highs are around 13°C, so pack for cooler days.
May verdict
Marathon (Ontario), Canada in May
Weather score32Poor
Poor for holiday weather
Average highs are around 13°C, so pack for cooler days. Sunshine averages 7.3h per day, enough for a balanced month. Rainfall averages 65mm, which is relatively low for holiday planning.
May weather
Monthly averages
Temp
13°C
Rain
65mm
Sun
7.3h
Sea
3°C
Weather score
32
Poor
Seasonal climate calendar
TemperatureTemp
RainRain
SunSun
SwimSwim
Weather scoreWeather score
Trip feel
Drier
Rainfall averages 65mm, which is relatively low for holiday planning.
Some sun
Sunshine averages 7.3h per day, enough for a balanced month.
Cool sea
Sea temperatures average 3°C, so the water can feel cool.
Map
Weather map
Compare Marathon (Ontario), Canada with nearby places by weather score, rain, sun, temperature, and swim conditions.
Temperature
May13°C average high
May sits in the warmer part of the year, so midday sightseeing can feel heavier than in cooler months.
Warmest monthsMay to September
This stretch sets the upper range for average daytime heat.
Rain
May65mm average rain
May sits on the drier side of Marathon (Ontario)'s year, which helps with sightseeing and transfers.
Driest monthsJanuary to May and November to December
This is the drier part of the year, when outdoor plans usually need less weather flexibility.
Sun
May7.3 hours average sun
May is brighter than Marathon (Ontario)'s yearly average, though the strongest sunshine usually sits closer to the peak months.
Brightest monthsMay to August
This stretch has the strongest sunshine in the monthly averages.
Sea temperature
May3°C average sea
May is below Marathon (Ontario)'s yearly sea-temperature average, so swimming can feel fresher.
Warmest seaAugust to September
Sea temperatures are usually near 14°C in this stretch, so swimming comfort is at its strongest.
Weather score
May32 weather score
May sits close to Marathon (Ontario)'s yearly weather-score average, giving a typical overall read on the month.
Best weather monthsJuly to August
These months have the strongest weather score in the monthly averages.
