Best time to travel to South Korea

South Korea on a weather map

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Sea water temperature

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December

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Monthly South Korea weather

January

February

March

April

May

June

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August

September

October

November

December

Place name	Air temp day / night	Cloudiness	Rainy days (precipitation)	Sea temperature	Sunny hours
Busan	44.7°F	37.3°F	26.1%	-	56.7°F	8 h. 27 min.
Incheon	33.5°F	29.3°F	35.5%	-	39.2°F	7 h. 23 min.
Jeju	45.7°F	41.1°F	54.4%	3 days (2.5 in.)	59.4°F	5 h. 39 min.
Muju	36.5°F	25.7°F	44.0%	-	-	6 h. 36 min.
Seoul	33.9°F	26.5°F	34.8%	-	39.9°F	7 h. 27 min.
Yongpyong	34.5°F	17.9°F	27.9%	2 days (1.5 in.)	52.2°F	8 h. 7 min.

Place name	Air temp day / night	Cloudiness	Rainy days (precipitation)	Sea temperature	Sunny hours
Busan	47.2°F	39.9°F	41.1%	2 days (1.1 in.)	55.0°F	7 h. 25 min.
Incheon	37.9°F	32.9°F	37.9%	-	37.0°F	7 h. 42 min.
Jeju	46.9°F	42.3°F	57.5%	5 days (2.8 in.)	57.2°F	5 h. 39 min.
Muju	41.0°F	28.2°F	46.9%	1 day (0.6 in.)	-	6 h. 46 min.
Seoul	40.3°F	31.5°F	39.2%	-	37.4°F	7 h. 33 min.
Yongpyong	37.6°F	22.1°F	41.0%	2 days (1.5 in.)	48.4°F	7 h. 21 min.

Place name	Air temp day / night	Cloudiness	Rainy days (precipitation)	Sea temperature	Sunny hours
Busan	55.2°F	48.1°F	39.6%	3 days (1.7 in.)	55.4°F	8 h. 14 min.
Incheon	47.0°F	41.2°F	32.7%	1 day (1.6 in.)	41.0°F	9 h. 2 min.
Jeju	55.0°F	48.0°F	45.9%	4 days (3.2 in.)	56.8°F	7 h. 28 min.
Muju	53.3°F	36.9°F	39.2%	3 days (2.5 in.)	-	8 h. 16 min.
Seoul	53.0°F	41.7°F	32.6%	1 day (1.8 in.)	41.2°F	9 h. 3 min.
Yongpyong	49.3°F	32.0°F	35.6%	3 days (2.5 in.)	49.3°F	8 h. 42 min.

Place name	Air temp day / night	Cloudiness	Rainy days (precipitation)	Sea temperature	Sunny hours
Busan	62.9°F	55.2°F	38.8%	4 days (3.6 in.)	57.6°F	8 h. 59 min.
Incheon	57.5°F	51.5°F	31.4%	2 days (1.7 in.)	48.7°F	10 h. 2 min.
Jeju	62.9°F	55.6°F	40.3%	4 days (3.1 in.)	58.6°F	8 h. 46 min.
Muju	65.6°F	46.2°F	37.0%	3 days (2.3 in.)	-	9 h. 15 min.
Seoul	66.3°F	53.6°F	32.1%	1 day (1.3 in.)	48.7°F	9 h. 56 min.
Yongpyong	61.3°F	42.8°F	29.2%	2 days (1.5 in.)	53.1°F	10 h. 19 min.

Place name	Air temp day / night		Cloudiness	Rainy days (precipitation)	Sea temperature	Sunny hours
Busan	69.2°F	59.9°F	35.3%	3 days (3.9 in.)	61.3°F	10 h. 3 min.
Incheon	65.9°F	58.7°F	29.4%	3 days (4.0 in.)	57.6°F	11 h. 0 min.
Jeju	69.2°F	61.2°F	37.5%	5 days (5.8 in.)	61.9°F	9 h. 40 min.
Muju	73.5°F	50.8°F	32.4%	3 days (5.4 in.)	-	10 h. 30 min.
Seoul	75.8°F	59.6°F	28.2%	3 days (3.8 in.)	57.6°F	11 h. 11 min.
Yongpyong	71.9°F	48.9°F	32.3%	2 days (4.8 in.)	57.6°F	10 h. 36 min.

Place name	Air temp day / night	Cloudiness	Rainy days (precipitation)	Sea temperature	Sunny hours
Busan	75.2°F	67.1°F	44.7%	6 days (4.6 in.)	67.8°F	9 h. 0 min.
Incheon	73.2°F	66.8°F	43.3%	8 days (10.7 in.)	67.1°F	9 h. 20 min.
Jeju	76.7°F	69.6°F	42.6%	7 days (8.9 in.)	68.2°F	9 h. 13 min.
Muju	81.8°F	60.5°F	45.9%	8 days (6.0 in.)	-	8 h. 53 min.
Seoul	82.1°F	68.0°F	47.3%	8 days (9.1 in.)	67.3°F	8 h. 45 min.
Yongpyong	77.6°F	57.8°F	45.9%	9 days (7.2 in.)	64.9°F	8 h. 57 min.

Place name	Air temp day / night	Cloudiness	Rainy days (precipitation)	Sea temperature	Sunny hours
Busan	81.8°F	74.2°F	53.0%	7 days (5.3 in.)	74.3°F	7 h. 42 min.
Incheon	82.0°F	74.8°F	49.6%	13 days (14.6 in.)	74.3°F	8 h. 17 min.
Jeju	84.7°F	76.0°F	46.1%	8 days (6.1 in.)	76.1°F	8 h. 37 min.
Muju	84.0°F	68.9°F	61.8%	15 days (19.1 in.)	-	6 h. 28 min.
Seoul	87.8°F	74.9°F	57.0%	13 days (14.5 in.)	74.3°F	7 h. 13 min.
Yongpyong	83.5°F	65.8°F	52.3%	13 days (13.8 in.)	72.3°F	7 h. 54 min.

Place name	Air temp day / night	Cloudiness	Rainy days (precipitation)	Sea temperature	Sunny hours
Busan	84.2°F	76.7°F	47.1%	7 days (5.7 in.)	79.5°F	8 h. 7 min.
Incheon	81.4°F	75.9°F	51.8%	11 days (14.9 in.)	78.6°F	7 h. 32 min.
Jeju	85.6°F	76.9°F	44.1%	7 days (3.9 in.)	80.8°F	8 h. 28 min.
Muju	83.1°F	68.6°F	61.5%	11 days (13.6 in.)	-	6 h. 11 min.
Seoul	84.7°F	74.0°F	56.4%	12 days (14.5 in.)	78.3°F	6 h. 55 min.
Yongpyong	81.0°F	65.5°F	59.2%	11 days (21.7 in.)	76.6°F	6 h. 32 min.

Place name	Air temp day / night	Cloudiness	Rainy days (precipitation)	Sea temperature	Sunny hours
Busan	78.0°F	71.4°F	45.3%	4 days (4.2 in.)	76.1°F	7 h. 47 min.
Incheon	77.7°F	71.1°F	36.0%	4 days (5.6 in.)	74.8°F	8 h. 57 min.
Jeju	77.5°F	71.7°F	52.8%	4 days (7.6 in.)	76.6°F	6 h. 50 min.
Muju	76.8°F	60.3°F	45.7%	3 days (3.5 in.)	-	7 h. 44 min.
Seoul	80.3°F	67.7°F	37.2%	4 days (5.6 in.)	74.5°F	8 h. 48 min.
Yongpyong	73.9°F	57.6°F	46.3%	4 days (6.0 in.)	72.3°F	7 h. 41 min.

Place name	Air temp day / night	Cloudiness	Rainy days (precipitation)	Sea temperature	Sunny hours
Busan	69.1°F	60.3°F	24.9%	1 day (0.5 in.)	70.7°F	9 h. 30 min.
Incheon	64.8°F	59.1°F	26.8%	2 days (2.8 in.)	67.1°F	9 h. 13 min.
Jeju	67.6°F	61.6°F	30.4%	2 days (0.6 in.)	72.0°F	8 h. 54 min.
Muju	64.2°F	47.3°F	27.8%	1 day (1.3 in.)	-	9 h. 8 min.
Seoul	66.9°F	55.9°F	29.4%	2 days (2.7 in.)	66.7°F	8 h. 56 min.
Yongpyong	62.1°F	45.1°F	38.0%	4 days (4.0 in.)	67.3°F	7 h. 58 min.

Place name	Air temp day / night	Cloudiness	Rainy days (precipitation)	Sea temperature	Sunny hours
Busan	60.1°F	52.8°F	23.5%	2 days (1.0 in.)	64.8°F	8 h. 54 min.
Incheon	52.1°F	47.7°F	33.6%	2 days (1.4 in.)	57.0°F	7 h. 45 min.
Jeju	59.8°F	55.0°F	42.0%	3 days (1.5 in.)	66.6°F	7 h. 3 min.
Muju	53.7°F	40.7°F	36.3%	2 days (1.3 in.)	-	7 h. 33 min.
Seoul	52.6°F	44.7°F	34.6%	2 days (1.7 in.)	57.0°F	7 h. 39 min.
Yongpyong	52.1°F	36.4°F	26.9%	2 days (1.6 in.)	61.0°F	8 h. 26 min.

Place name	Air temp day / night	Cloudiness	Rainy days (precipitation)	Sea temperature	Sunny hours
Busan	45.3°F	39.2°F	28.8%	2 days (0.6 in.)	60.3°F	8 h. 0 min.
Incheon	34.6°F	30.9°F	52.4%	3 days (1.2 in.)	46.2°F	5 h. 34 min.
Jeju	47.6°F	43.5°F	61.2%	3 days (2.0 in.)	62.4°F	4 h. 52 min.
Muju	36.4°F	26.3°F	53.6%	4 days (1.6 in.)	-	5 h. 31 min.
Seoul	33.4°F	26.7°F	45.4%	3 days (1.1 in.)	46.8°F	6 h. 15 min.
Yongpyong	34.6°F	19.4°F	25.7%	2 days (1.1 in.)	56.3°F	8 h. 8 min.

* 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.

Name

°F

Yongpyong