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Weather extremes

How extreme does Gwangju's weather get?

The hottest, coldest, wettest and snowiest days Gwangju has recorded — the outer limits of what its weather can do, and how far they sit beyond a normal day.

Based on 34 years of daily weather observations (1991–present), from the Gwangju station 2 km away. Updated through August 2025 — an all-time extreme only changes when a more extreme day actually occurs, so some dates are old. That is normal, not stale data.

The four kinds of extreme

The hottest, coldest, wettest and snowiest single days Gwangju has recorded — each shown against what a normal day that time of year looks like.

🔥 Hottest day
103°F Aug 28, 2010

That is about 16°F hotter than a normal August afternoon in Gwangju (typical high near 87°F).

The three most extreme on record

1 103°F Aug 28, 2010
2 101°F Jul 19, 1994
3 100°F Jul 22, 1994
❄️ Coldest night
-4°F Jan 24, 2004

About 30°F colder than a normal January night in Gwangju (typical low near 26°F).

The three most extreme on record

1 -4°F Jan 24, 2004
2 -3°F Dec 18, 2005
3 6°F Dec 20, 2003
🌧️ Most rain in one day
13.78 in Jul 16, 1992

More rain in a single day than Gwangju usually gets in the whole month of July (typical July total about 12.3 in).

The three most extreme on record

1 13.78 in Jul 16, 1992
2 13.31 in Sep 3, 1992
3 13.03 in Aug 2, 1992

How hot and cold it gets, month by month

The shaded band is the normal range of daily temperatures for each month. The dots show the most extreme it has ever been — so you can see how far beyond a normal day the records really sit.

-30°-10°10°30°50°70°90°110°130° all-time high 103°F JanFebMarAprMayJunJulAugSepOctNovDec
normal range of daily temperatureshottest ever recordedcoldest ever recorded

Gwangju's record heat sits well above even a hot day for the season — August's 103°F is about 16°F beyond a normal hot afternoon. Its record cold is just as far below a normal winter night — the dots mark how rare each extreme really is.

In plain terms

In a normal year, Gwangju's warmest days reach the high 80s°F and its coldest nights drop to the mid-20s°F. But across the record it has gone as high as 103°F and as low as −4°F. A single day has delivered over 14 inches of rain. Those are the outer edges worth knowing if you are moving here, planning a trip, or thinking about a house.
Methodology & sources

Temperature & precipitation — 1991–2020 normals computed from 30 years of daily observations at Gwangju, a weather station, about 2 km from the city centre. The underlying daily records come from NOAA's global station network.

How we build these numbers →