World Resorts South Korea Jeju Weather

Jeju 7 Days Forecast

07.08
fri
Day
84°F
W 21 mph
Precip.
16%
Night
84°F
W 22 mph
Precip.
23%
08.08
sat
Day
86°F
W 24 mph
Precip.
9%
Night
82°F
W 21 mph
Precip.
31%
09.08
sun
Day
79°F
W 23 mph
Precip.
51%
Night
81°F
W 19 mph
Precip.
42%
10.08
mon
Day
82°F
W 14 mph
Precip.
15%
Night
82°F
W 22 mph
Precip.
20%
11.08
tue
Day
84°F
W 21 mph
Precip.
24%
Night
79°F
W 23 mph
Precip.
20%
12.08
wed
Day
82°F
W 20 mph
Precip.
13%
Night
81°F
W 19 mph
Precip.
16%
13.08
thu
Day
82°F
W 21 mph
Precip.
22%
Night
77°F
NW 7 mph
Precip.
30%

Sea water temperature in August, °F

Show year:
2025
2024
2023

The average sea water temperature in August of 2025 was 83.6°F. The highest and lowest sea temperatures during the month were 85.6°F and 80.2°F.

Air temperature in Jeju, °F

Precipitation total in Jeju, in.

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

Best time for vacation in Jeju

Sunniest months:
May 15 days
October 14 days
April 14 days
Warmest months:
August 84.5 °F
July 82.1 °F
September 77.7 °F
Warmest sea temp:
August 81.2 °F
September 77.5 °F
July 76.7 °F
Coldest months:
January 44.8 °F
February 46.3 °F
December 48.6 °F
Rainiest months:
August 8 days
September 7 days
July 7 days
Windiest months:
January 14.4 mph
December 14.1 mph
February 13.9 mph

Jeju on a weather map

Current weather
00:29
Jeju
+81°F
SW 14 mph
Feels like: +90°F
Precip.: 26%
Places in South Korea:
Name
°F
Yongpyong
+72°F
Incheon
+84°F
Muju
+72°F
Busan
+79°F
Seoul
+88°F
Jeju
+81°F
24 Hours Forecast
Jeju
Local time: 00:29
August 07, friday
0300
81°F
SW
16 mph
0600
81°F
SW
19 mph
0900
82°F
W
21 mph
1200
84°F
W
21 mph
1500
86°F
W
21 mph
1800
84°F
W
19 mph
2100
84°F
W
21 mph
August 08, saturday
0000
84°F
W
22 mph
Units of measurement: °C / °F