October weather forecast
Jeju, South Korea

October manifests the quintessential autumn in Jeju and comes with a noticeable drop in temperatures, which offer relief after the sweltering summer months. The month brings a refreshing feel, a blend of mild sunny days and nippy evenings. It's a time when the deciduous trees across the island put on an enchanting display of fall colors, presenting an incredible scenery. Rainfall decreases significantly, making way for clear, blue skies that perfectly complement the colorful landscapes. October stimulates a sense of tranquility and peace in Jeju, allowing just the right setup for nature walks and outdoor relaxation.

Temperature

Jeju's progression into October involves a gentle drop in the average high-temperature, from a moderately hot 25.8°C in September to a pleasant 21.3°C. An average low-temperature of 15.1°C is expected during October.

Humidity

In Jeju, the average relative humidity in October is 66.9%.

Rainfall

In Jeju, in October, it is raining for 7 days, with typically 80mm of accumulated precipitation. Throughout the year, there are 130.2 rainfall days, and 1498mm of precipitation is accumulated.

Sea temperature

In October, the average sea temperature is 21.8°C.
Note: The majority of individuals do not enjoy swimming in water that is 21.8°C. Breathing control becomes more challenging as the water temperature dips from 21°C to 15°C.

Daylight

In October, the average length of the day is 11h and 21min.
On the first day of the month, sunrise is at 06:27 and sunset at 18:19. On the last day of October, in Jeju, sunrise is at 06:51 and sunset at 17:43 KST.

Sunshine

In October, the average sunshine in Jeju is 5.8h.

UV index

In October, the average daily maximum UV index is 6. A UV Index of 6 to 7 symbolizes a high health hazard from unprotected exposure to Sun's UV rays for the average person.
Note: During October, 6 as the daily maximum UV index converts into the following advice:
Dodge overexposure. Fair-skinned people can get singed in less than 20 minutes. It's important to stay in the shade and limit exposure to the sun from 10 a.m. to 4 p.m., when UV radiation is most intense, although remember that shade structures may not provide full sun protection. Sun-related eye harm can be minimized with proper sunglasses offering UVA and UVB coverage. Take note! The UV strength of the Sun elevates when reflected off water and sand.