Weather in Gwangju in April

A good month. April is a solid month to be in Gwangju. Highs average 18.2 °C, lows 5.9 °C, and rain falls on 8 days — nothing in the month is working against you.

April ranks 5 of 12 in Gwangju: past the worst of the year but short of October, which is the month to book if the dates are open.

The rain arrives in bursts — 4 of the 8 wet days are heavy ones. Mornings tend to hold; build the outdoor half of each day before lunch and keep the afternoon flexible. Nothing specialised needed — this is the month you pack for the trip rather than for the weather.

What the averages hide

Averages flatten a month, and this one hides a few things: it never really gets hot: not one day in an average April reaches 30 °C. Across the twenty years measured, the hottest April day reached 26 °C and the coldest night fell to -2.4 °C, and the wettest single day dropped 59 mm — roughly 54% of the month's rain in one day.

April is moderately variable: 38 mm in the driest year against 227 mm in the wettest, around an average of 109 mm. Roughly two Aprils in three land near that average, and the third does something else entirely.

Wind is light at 9.9 km/h, so the temperature on the page is close to the temperature on your skin, and humidity runs at 75%, high enough to notice on the warm days without dominating them.

How April sits in the year

The month is on the way up: 5.9 °C warmer than March, and May adds another 5 °C. Late in the month feels noticeably different from the start of it, which is worth knowing if the trip is short.

Daylight in April

13 hours of daylight, gaining 1 hours across the month. That is between Gwangju's extremes of 14.5 and 9.8 hours, so days are long enough not to constrain the plan.

Sea temperature

The sea sits at about 15.2 °C in April — cold — a quick dip rather than a swim, and a wetsuit if you are in for longer. The sea peaks at 27.3 °C in August and bottoms out at 14.4 °C — water lags the air by a month or two, which is why the best swimming often comes after the best weather.

How busy it gets

Busy. Popular without being frantic; book the things you care about, improvise the rest.

Crowd levels are estimated from climate desirability and school-holiday calendars, not from visitor numbers.

April in Gwangju versus nearby

If Gwangju is one option among several, the nearby comparison is worth making. Daegu is close enough to be a coin toss — within a degree on temperature, the same number of rain days. Busan is close enough to be a coin toss — within a degree on temperature, the same number of rain days.

So: April works, with October the better month by 13 points if the dates can move. If they cannot, nothing here should stop you booking.

Every month in Gwangju

See all twelve months in Gwangju, or where else to go in April.