Mild
Average highs are around 23°C, so days are mild rather than hot.
September verdict
Mixed for holiday weather
Average highs are around 23°C, so days are mild rather than hot. Sunshine averages 6.5h per day, enough for a balanced month. Rainfall averages 196mm, so showers are a real planning factor.
Monthly averages
Temp
23°C
Rain
196mm
Sun
6.5h
Sea
22°C
Weather score
50
Mixed
Mild
Average highs are around 23°C, so days are mild rather than hot.
Wet
Rainfall averages 196mm, so showers are a real planning factor.
Some sun
Sunshine averages 6.5h per day, enough for a balanced month.
Cool sea
Sea temperatures average 22°C, so the water can feel cool.
Map
Compare Wonsan, North Korea with nearby places by weather score, rain, sun, temperature, and swim conditions.
September23°C average high
September 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.
September196mm average rain
September sits near Wonsan's yearly rainfall average, so rain is a normal planning factor rather than an outlier.
Driest monthsJanuary to May and October to December
This is the drier part of the year, when outdoor plans usually need less weather flexibility.
September6.5 hours average sun
September sits close to Wonsan's yearly sunshine average, so it is a middle-of-the-pack month for bright days.
Brightest monthsApril to May
This stretch has the strongest sunshine in the monthly averages.
September22°C average sea
September sits in the warmer sea-temperature season, usually making swimming easier to enjoy.
Warmest seaJuly to September
Sea temperatures are usually near 22°C in this stretch, so swimming comfort is at its strongest.
September50 weather score
September scores above Wonsan's yearly average, so the overall weather mix is stronger than most months.
Best weather monthsJune to September
These months have the strongest weather score in the monthly averages.