Weather Guide

Daejeon, South Korea Average Monthly Weather

Weather score43Mixed annual avg

Best months: September, August, June

Across the year, average daytime temperatures are around 17°C, sunshine averages 6.7h per day, and rainfall totals about 1271mm. Sea temperatures average 15°C across the year.

Daejeon, South Korea, South Korea travel weather guide
Photo by Oh Taeyeon on Unsplash

Annual weather

Annual averages

Temp

17°C

Rain

1271mm

Annual total

Sun

6.7h

Sea

15°C

Weather score

43

Mixed avg

Seasonal climate calendar

Trip feel

Cool

Average highs are around 12°C, so pack for cooler days.

Drier

Rainfall averages 51mm, which is relatively low for holiday planning.

Some sun

Sunshine averages 5.4h per day, enough for a balanced month.

Cool sea

Sea temperatures average 15°C, so the water can feel cool.

Map

Weather map

Compare Daejeon, South Korea with nearby places by weather score, rain, sun, temperature, and swim conditions.

Temperature

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November12°C average high

November is on the cooler side of Daejeon's year, useful if you prefer less intense daytime heat.

Warmest monthsMay to September

This stretch sets the upper range for average daytime heat.

November51mm average rain

November is one of Daejeon's driest months, making outdoor days easier to plan than in wetter parts of the year.

Driest monthsJanuary to May and October to December

This is the drier part of the year, when outdoor plans usually need less weather flexibility.

November5.4 hours average sun

November is one of Daejeon's cloudier months, so sunshine-led plans are less reliable.

Brightest monthsApril to June

This stretch has the strongest sunshine in the monthly averages.

Sea temperature

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November15°C average sea

November is close to Daejeon's yearly sea-temperature average, so swimming comfort is fairly typical.

Warmest seaJuly to September

Sea temperatures are usually near 23°C in this stretch, so swimming comfort is at its strongest.

Weather score

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November29 weather score

November is one of the weakest weather-score months, when the overall mix is less favourable than the rest of the year.

Best weather monthsJune to September

These months have the strongest weather score in the monthly averages.

Hotels in Daejeon, South Korea