Weather in Busan in July

Shoulder season. July sits in between. You will get good days and you will lose some. The heat itself is manageable at 26.9 °C, but 89% humidity is what you will actually feel.

July ranks 8 of 12 in Busan: past the worst of the year but short of October, which is the month to book if the dates are open.

This is wet-season rain: 17 wet days and 7 genuinely heavy ones, which in this climate means concentrated downpours rather than all-day grey. The pattern is usually a clear morning and a loud afternoon, so front-load the day and stop fighting the 3pm hour. Natural fibres and a second shirt for the day. At 89% nothing dries, including you.

What the averages hide

Averages flatten a month, and this one hides a few things: the day barely swings — 4.5 °C between the overnight low and the afternoon high. Across the twenty years measured, the hottest July day reached 33 °C and the coldest night fell to 17.1 °C, and the wettest single day dropped 187 mm — roughly 63% of the month's rain in one day.

July is moderately variable: 129 mm in the driest year against 684 mm in the wettest, around an average of 299 mm. Roughly two Julys in three land near that average, and the third does something else entirely.

Wind is light at 10.9 km/h, so the temperature on the page is close to the temperature on your skin, and humidity at 89% is the real story though — it is the number that decides how the day feels, not the 26.9 °C.

How July sits in the year

The month is on the way up: 2.6 °C warmer than June, and August adds another 1.6 °C. Late in the month feels noticeably different from the start of it, which is worth knowing if the trip is short. Rain has already shifted: 7 days more than June had.

Daylight in July

July is at or near the longest days of Busan's year: 14.3 hours of daylight, losing 0.5 hours across the month. Evenings are the real gain — dinner outdoors still happens in full light.

Sea temperature

The sea sits at about 23.9 °C in July — comfortable for a proper swim. This is the warmest the water gets all year.

How busy it gets

Shoulder. The value months — prices ease off and you get the place closer to itself.

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

July in Busan versus nearby

If Busan is one option among several, the nearby comparison is worth making. Daegu is the weaker option in July — 2.9 °C warmer, the same number of rain days. Gwangju is close enough to be a coin toss — 2 °C warmer, the same number of rain days.

So: July is a compromise. October is 32 points better and is what Busan is actually like at its best — worth moving the trip for if that is possible, and worth adjusting expectations for if it is not.

Every month in Busan

See all twelve months in Busan, or where else to go in July.