Measurements:
°C
°F
CURRENT WEATHER
11:48
Jeju
78°F
NE 8 mph
Feels like: 82°F
Precip: 75%
World Resorts South Korea Jeju Weather

7 Day Weather Forecast

07.05
sun
DAY
78°F
NE 8 mph
precip
75%
NIGHT
74°F
NE 9 mph
precip
63%
07.06
mon
DAY
86°F
NE 6 mph
precip
9%
NIGHT
76°F
NE 4 mph
precip
11%
07.07
tue
DAY
88°F
NW 2 mph
precip
5%
NIGHT
76°F
N 7 mph
precip
11%
07.08
wed
DAY
88°F
N 6 mph
precip
5%
NIGHT
78°F
N 6 mph
precip
17%
07.09
thu
DAY
86°F
NW 3 mph
precip
16%
NIGHT
76°F
N 6 mph
precip
16%
07.10
fri
DAY
86°F
NW 4 mph
precip
20%
NIGHT
80°F
NW 7 mph
precip
16%
07.11
sat
DAY
90°F
NW 9 mph
precip
15%
NIGHT
80°F
NW 7 mph
precip
27%

Jeju Sea Water Temperature in July, °F

Select Year: 2025 2024 2023

The average sea surface temperature in July 2025 for Jeju was 26.8°F. The maximum and minimum values were 23.1°F and 28.6°F respectively.

Jeju on the Weather Map

Best Time to Visit Jeju
The most sunny months:
May 15 days
October 14 days
April 14 days
The most warm months:
August 88.3 °F
July 85.5 °F
September 80.8 °F
Warmest sea temperature:
August 84.7 °F
September 80.5 °F
July 79.5 °F
The most cold months:
January 44.2 °F
February 45.9 °F
December 48.5 °F
The most rainy months:
August 8 days
September 7 days
July 7 days
The most windy months:
January 14 mph
December 14 mph
February 14 mph
more details