World Resorts South Korea Jeju Weather

Jeju 7 Days Forecast

17.07
fri
Day
86°F
SE 5 mph
Precip.
27%
Night
75°F
N 4 mph
Precip.
14%
18.07
sat
Day
86°F
NE 5 mph
Precip.
8%
Night
77°F
NE 6 mph
Precip.
19%
19.07
sun
Day
82°F
SE 9 mph
Precip.
9%
Night
73°F
NE 4 mph
Precip.
11%
20.07
mon
Day
82°F
SW 4 mph
Precip.
21%
Night
75°F
N 2 mph
Precip.
13%
21.07
tue
Day
82°F
S 3 mph
Precip.
19%
Night
75°F
N 2 mph
Precip.
13%
22.07
wed
Day
84°F
S 2 mph
Precip.
8%
Night
75°F
N 5 mph
Precip.
12%
23.07
thu
Day
86°F
NE 2 mph
Precip.
5%
Night
77°F
N 5 mph
Precip.
14%

Sea water temperature in July, °F

Show year:
2026
2025
2024

The average sea water temperature in July of 2026 was 75.1°F. The highest and lowest sea temperatures during the month were 77.9°F and 72.1°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 82.0 °F
September 77.7 °F
Warmest sea temp:
August 81.2 °F
September 77.5 °F
July 76.6 °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
22:19
Jeju
+79°F
NW 2 mph
Feels like: +84°F
Precip.: 16%
Places in South Korea:
Name
°F
Yongpyong
+64°F
Incheon
+75°F
Muju
+73°F
Busan
+77°F
Seoul
+75°F
Jeju
+79°F
24 Hours Forecast
Jeju
Local time: 22:19
July 18, saturday
0000
75°F
N
4 mph
0300
75°F
N
4 mph
0600
75°F
N
4 mph
0900
84°F
NE
6 mph
1200
86°F
NE
5 mph
1500
88°F
NE
7 mph
1800
84°F
NE
9 mph
2100
77°F
NE
6 mph
Units of measurement: °C / °F