Ulleungdo weather in September 2025

The temperatures in Ulleungdo in September are comfortable with low of 18°C and and high up to 26°C.

You can expect about 3 to 8 days of rain in Ulleungdo during the month of September. It’s a good idea to bring along your umbrella so that you don’t get caught in poor weather.

Our weather forecast can give you a great sense of what weather to expect in Ulleungdo in September 2025.

If you’re planning to visit Ulleungdo in the near future, we highly recommend that you review the 14 day weather forecast for Ulleungdo before you arrive.

Temperatures

26° / 18°

Rainy Days

Snowy Days

Dry Days

Rainfall

153

Sun Hours

10.3

Hrs

Sun	Mon	Tue	Wed	Thu	Fri	Sat
	1 27° /18°	2 26° /20°	3 30° /20°	4 28° /21°	5 27° /20°	6 26° /20°
7 27° /19°	8 30° /19°	9 32° /20°	10 30° /22°	11 30° /22°	12 30° /22°	13 27° /21°
14 29° /20°	15 28° /21°	16 27° /20°	17 28° /22°	18 30° /21°	19 28° /21°	20 26° /18°
21 24° /17°	22 24° /17°	23 24° /17°	24 25° /17°	25 25° /17°	26 25° /18°	27 25° /18°
28 26° /18°	29 25° /18°	30 27° /18°

Explore the weather in Ulleungdo in other months

Ulleungdo annual weather

Month	Temperatures	Rainy Days	Dry Days	Snowy Days	Rainfall	Weather	More details
January	1° / -5°	3	22	7	24 mm	Awful	Ulleungdo in January
February	4° / -2°	2	22	4	36 mm	Awful	Ulleungdo in February
March	11° / 3°	4	25	2	60 mm	Bad	Ulleungdo in March
April	17° / 8°	5	25	0	83 mm	Good	Ulleungdo in April
May	23° / 14°	5	26	0	118 mm	Perfect	Ulleungdo in May
June	27° / 18°	6	24	0	142 mm	Perfect	Ulleungdo in June
July	29° / 22°	11	20	0	424 mm	Ok	Ulleungdo in July
August	30° / 23°	10	21	0	320 mm	Ok	Ulleungdo in August
September	26° / 18°	5	25	0	153 mm	Perfect	Ulleungdo in September
October	20° / 12°	3	28	0	74 mm	Good	Ulleungdo in October
November	12° / 6°	4	24	2	79 mm	Bad	Ulleungdo in November
December	3° / -3°	3	21	7	36 mm	Awful	Ulleungdo in December

Temperatures in Ulleungdo in September

Rain in Ulleungdo in September

Weather in Ulleungdo in September - FAQ

What is the average temperature in Ulleungdo in September?

The average temperature in Ulleungdo in September is 18/26° C.

What is the chance of rain in Ulleungdo in September?

On average, there are 5 rainy days in Ulleungdo during September.

Weather wise, is September a good time to visit Ulleungdo?

The weather in Ulleungdo in September is perfect.

Can it snow in Ulleungdo in September?

On average, there are 0 snowy days in Ulleungdo in September.

More about the weather in Ulleungdo