World Resorts South Korea Jeju

Jeju Monthly Weather Averages

Please click on any column to get detailed information about Jeju weather in that particular month. You will get daily weather information for that month for the last several years.

Day & Night air temperature, °F

The warmest month in Jeju is august. The average daily temp is 84.9°F. The average nightly temp is 77.9°F.

Sea water temperature, °F

The warmest sea temperature usually observed in August. Average daily sea water temperature during this month is 81.0°F.

Precipitation total, in.

November is the month with least precipitations during the year. The average precipitation totals for this month is 2.6 in. The month with most precipitation total is September.

Number of rainy days

This chart shows averages for the last three years. It shows medium and heavy rains only, it doesn't show light rains.

Wind speed, mph
Sunny, partly cloudy and cloudy days
Average sunny hours

Sunny hours are calculated based on the average daily number of hours while sunlight can reach the ground. It depends on day length and cloudiness during the day.

* Charts above show average data for the last 3 years.

Best time for vacation in Jeju

Sunniest months:
October 15 days
May 15 days
March 14 days
Warmest months:
August 84.4 °F
July 81.8 °F
September 77.4 °F
Warmest sea temp:
August 81.1 °F
September 77.1 °F
July 76.3 °F
Coldest months:
January 44.9 °F
February 46.5 °F
December 48.6 °F
Rainiest months:
August 9 days
July 8 days
September 7 days
Windiest months:
January 14.5 mph
December 14.3 mph
February 14.0 mph

Jeju on a weather map

Jeju
+52°F
SW 6 mph
Feels like: +50°F
Precip.: 0%
Places in South Korea:
Name
°F
+43°F
+45°F
+39°F
+52°F
+45°F
+52°F
24 Hours Forecast
Jeju
Local time: 09:19
November 24, sunday
1200
57°F
SW
7 mph
1500
59°F
SW
11 mph
1800
57°F
W
9 mph
2100
57°F
W
8 mph
November 25, monday
0000
55°F
NW
9 mph
0300
55°F
NW
8 mph
0600
55°F
NW
10 mph
0900
59°F
NW
11 mph
Units of measurement: °C / °F