Cool
Average highs are around 5°C, so pack for cooler days.
March verdict
Poor for holiday weather
Average highs are around 5°C, so pack for cooler days. Sunshine averages 4.8h per day, so this is not one of the brighter months. Rainfall averages 88mm, so some wet days are possible.
Monthly averages
Temp
5°C
Rain
88mm
Sun
4.8h
Sea
9°C
Weather score
20
Poor
Cool
Average highs are around 5°C, so pack for cooler days.
Showers
Rainfall averages 88mm, so some wet days are possible.
Limited sun
Sunshine averages 4.8h per day, so this is not one of the brighter months.
Cool sea
Sea temperatures average 9°C, so the water can feel cool.
Map
Compare Dewa Sanzan, Japan with nearby places by weather score, rain, sun, temperature, and swim conditions.
March5°C average high
March is on the cooler side of Dewa Sanzan's year, useful if you prefer less intense daytime heat.
Warmest monthsJune to September
This stretch sets the upper range for average daytime heat.
March88mm average rain
March is one of Dewa Sanzan's driest months, making outdoor days easier to plan than in wetter parts of the year.
Driest monthsJanuary to May
This is the drier part of the year, when outdoor plans usually need less weather flexibility.
March4.8 hours average sun
March sits close to Dewa Sanzan's yearly sunshine average, so it is a middle-of-the-pack month for bright days.
Brightest monthsApril to May and August
This stretch has the strongest sunshine in the monthly averages.
March9°C average sea
March is one of the coolest sea months, so the water may feel fresher than in peak months.
Warmest seaJuly to September
Sea temperatures are usually near 23°C in this stretch, so swimming comfort is at its strongest.
March20 weather score
March scores below Dewa Sanzan's yearly average, so the weather trade-offs are more noticeable.
Best weather monthsJuly to August
These months have the strongest weather score in the monthly averages.
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