Weather in Jeju in July 2026
- July is usually the wettest month of the year in Jeju;
Average weather
Average temperature in Jeju in July
Going from a maximum of +30°C during the day to a minimum of +22°C during the night, the temperature in July averages around +28°C.
The average maximum temperature goes up 63% by the end of the month, compared with the beginning of the month, from +25°C to +30°C.
Is Jeju warm or cold in July?
Jeju is typically warm in July.
Maximum temperatures go up compared to the previous month from +23°C to +28°C. The minimum temperature also goes up from +19°C to +23°C.
It’s generally warm, but pack a long-sleeve shirt for evenings.
July is one of the warmest months in Jeju, here is the comparison with other months:
Climate in Jeju in July
| June | July | August | ||||
|---|---|---|---|---|---|---|
| Avg. temperature | ||||||
| +23°C | +28°C | +29°C | ||||
| Min. temperature | ||||||
| +12°C | +18°C | +18°C | ||||
| Max. temperature | ||||||
| +31°C | +35°C | +36°C | ||||
| Rainfall | ||||||
| 193 mm | 186 mm | 159 mm | ||||
| Wind | ||||||
| 3 m/s | 3 m/s | 3 m/s | ||||
| Humidity | ||||||
| 82% | 84% | 80% | ||||
| Air pressure | ||||||
| 1007 HPa | 1006 HPa | 1007 HPa | ||||
| Sunny days | ||||||
| 4 | 3 | 3 | ||||
| Cloudy days | ||||||
| 11 | 10 | 7 | ||||
| Rainy days | ||||||
| 15 | 18 | 20 | ||||
| Snowy days | ||||||
| 0 | 0 | 0 | ||||
July weather is still as ok as in June. It’s getting warmer as July arrives. The average maximum temperature goes up from +23°C to +28°C during the day. As July arrives, the amount of rainfall goes down. On average, the rainfall volume decreases from 193 mm to 186 mm. Humidity rises from 82% to 84%. The average wind speed doesn’t change much during July, staying around 3 m/s. The days becoming less sunny, going from 4 sunny days in June to 3 in July.
August brings much the same weather, it remains ok.
Wind
The average wind speed is 3 m/s getting up to 8 m/s which is a medium breeze. You can feel it, especially getting out of the water.
The average wind speed in Jeju is gradually increasing during July, going from 1 m/s to 4 m/s over the course of the month.
Rain
How was the weather last July in Jeju?
Climate Change over Years
The climate in Jeju in July has not changed much over the last 43 years.
The average temperature was the lowest in 1980 (+17°C) and the highest in 2024 (+19°C). The driest year was 2005 with only 752 mm of rainfall, and the wettest year was 1985 with 1808 mm.
FAQ
Is July a good time to visit Jeju?
Can you sunbathe in Jeju in July?
Is Jeju rainy in July?
Is it sunny in Jeju in July?
Other cities in South Korea
Monthly weather in Jeju
Source of the data
For this page, we’ve looked at the typical weather in Jeju, based on historical hourly weather data from January 1, 1979, to December 31, 2023.
For past dates, we show actual recorded data at the location at that time. Forecasts are based on recorded weather during that day of the year, averaged over the total years for which we have records (unless stated otherwise). The daily temperature is the highest recorded temperature in the shadow during that day.
