Question 1

What is the weather like in Jeju in January?

Accepted Answer

Daytime highs around 7°C, nights near 4°C. January is the coldest month of the year. Expect about 16 rain days and 5 hours of sunshine per day. The sea is cold at 15°C — not swimming weather.

Question 2

What is the weather like in Jeju in February?

Accepted Answer

Daytime highs around 8°C, nights near 5°C. Expect about 11 rain days and 6 hours of sunshine per day. The sea is cold at 14°C — not swimming weather.

Question 3

What is the weather like in Jeju in March?

Accepted Answer

Daytime highs around 12°C, nights near 7°C. Expect about 14 rain days and 8 hours of sunshine per day. The sea is cold at 14°C — not swimming weather.

Question 4

What is the weather like in Jeju in April?

Accepted Answer

Daytime highs around 16°C, nights near 11°C. Expect about 12 rain days and 9 hours of sunshine per day. The sea is cold at 14°C — not swimming weather.

Question 5

What is the weather like in Jeju in May?

Accepted Answer

Daytime highs around 21°C, nights near 15°C. Expect about 11 rain days and 9 hours of sunshine per day. The sea is cold at 16°C — not swimming weather.

Question 6

What is the weather like in Jeju in June?

Accepted Answer

Daytime highs around 24°C, nights near 19°C. Expect about 14 rain days and 8 hours of sunshine per day. The sea is on the fresh side at 20°C.

Question 7

What is the weather like in Jeju in July?

Accepted Answer

Daytime highs around 28°C, nights near 24°C. Expect about 20 rain days and 9 hours of sunshine per day. The sea is pleasant for swimming at 24°C.

Question 8

What is the weather like in Jeju in August?

Accepted Answer

Daytime highs around 29°C, nights near 25°C. August is the warmest month of the year. It is the rainiest month of the year. No month gets more sunshine. The sea is at its warmest now. Expect about 24 rain days and 10 hours of sunshine per day. The sea is properly warm at 27°C.

Question 9

What is the weather like in Jeju in September?

Accepted Answer

Daytime highs around 25°C, nights near 22°C. Expect about 16 rain days and 8 hours of sunshine per day. The sea is properly warm at 25°C.

Question 10

What is the weather like in Jeju in October?

Accepted Answer

Daytime highs around 20°C, nights near 17°C. It is also the driest month of the year. Expect about 10 rain days and 8 hours of sunshine per day. The sea is pleasant for swimming at 22°C.

Question 11

What is the weather like in Jeju in November?

Accepted Answer

Daytime highs around 15°C, nights near 12°C. Expect about 12 rain days and 7 hours of sunshine per day. The sea is on the fresh side at 19°C.

Question 12

What is the weather like in Jeju in December?

Accepted Answer

Daytime highs around 9°C, nights near 6°C. Expect about 14 rain days and 5 hours of sunshine per day. The sea is cold at 17°C — not swimming weather.

Jeju: weather and best time to visit

Best time to visit

Things to do in Jeju

Jeju climate, month by month

Every month in detail

Jeju in January

Jeju in February

Jeju in March

Jeju in April

Jeju in May

Jeju in June

Jeju in July

Jeju in August

Jeju in September

Jeju in October

Jeju in November

Jeju in December

Related destinations

Month	Day °C	Night °C	Sea °C	Rain d	Sun h	Beach	City	Hiking
Jan	7°	4°	15°	16	5	20	16	35
Feb	8°	5°	14°	11	6	33	30	54
Mar	12°	7°	14°	14	8	34	34	66
Apr	16°	11°	14°	12	9	41	59	73
May	21°	15°	16°	11	9	53	77	77
Jun	24°	19°	20°	14	8	54	67	59
Jul	28°	24°	24°	20	9	75	61	45
Aug	29°	25°	27°	24	10	79	58	42
Sep	25°	22°	25°	16	8	71	67	55
Oct	20°	17°	22°	10	8	59	76	77
Nov	15°	12°	19°	12	7	37	48	69
Dec	9°	6°	17°	14	5	24	20	49