Monthly weather forecast and climate
Ulsan, South Korea

January, the same as December, is a wintry winter month in Ulsan, South Korea, with average temperature ranging between max 4.8°C (40.6°F) and min -1.3°C (29.7°F). With an average high-temperature of 4.8°C (40.6°F) and an average low-temperature of -1.3°C (29.7°F), January is the coldest month. Weather in January »

The last month of the winter, February, is a frosty month in Ulsan, South Korea, with average temperature fluctuating between 1.1°C (34°F) and 7.2°C (45°F). In February, the average high-temperature is practically the same as in January - a frosty 7.2°C (45°F). Weather in February »

March, the first month of the spring, in Ulsan, is a fresh month, with average temperature varying between 4.8°C (40.6°F) and 11.1°C (52°F). In Ulsan, South Korea, the average high-temperature in March slightly increases, from a chilly 7.2°C (45°F) in February, to a fresh 11.1°C (52°F). Weather in March »

April is a mild spring month in Ulsan, South Korea, with temperature in the range of an average high of 15.8°C (60.4°F) and an average low of 9°C (48.2°F). In Ulsan, the average high-temperature marginally rises, from a fresh 11.1°C (52°F) in March, to a mild 15.8°C (60.4°F). Weather in April »

May, the last month of the spring, in Ulsan, is an agreeable month, with average temperature ranging between max 20.5°C (68.9°F) and min 13.6°C (56.5°F). In May, the average high-temperature slightly increases, from a mild 15.8°C (60.4°F) in April, to a pleasant 20.5°C (68.9°F). Weather in May »

June, the first month of the summer, in Ulsan, is a moderately hot month, with average temperature ranging between max 23.4°C (74.1°F) and min 17.6°C (63.7°F). In Ulsan, South Korea, the average high-temperature in June is almost the same as in May - a warm 23.4°C (74.1°F). Weather in June »

July, like June, in Ulsan, South Korea, is another warm summer month, with average temperature ranging between min 21.5°C (70.7°F) and max 26.4°C (79.5°F). In Ulsan, the average high-temperature marginally rises, from 23.4°C (74.1°F) in June, to a still warm 26.4°C (79.5°F). Weather in July »

The last month of the summer, August, is also a moderately hot month in Ulsan, South Korea, with average temperature ranging between max 28°C (82.4°F) and min 23.3°C (73.9°F). The warmest month is August, with an average high-temperature of 28°C (82.4°F) and an average low-temperature of 23.3°C (73.9°F). In August, the average heat index is estimated at a hot 32.4°C (90.3°F). Weather in August »

September, the first month of the autumn, in Ulsan, is also a moderately hot month, with average temperature varying between 23.8°C (74.8°F) and 19.2°C (66.6°F). In Ulsan, the average high-temperature slightly decreases, from 28°C (82.4°F) in August, to a still moderately hot 23.8°C (74.8°F). Weather in September »

October, like September, in Ulsan, South Korea, is another comfortable autumn month, with temperature in the range of an average low of 13.9°C (57°F) and an average high of 19.3°C (66.7°F). In Ulsan, the average high-temperature in October slightly decreases, from a moderately hot 23.8°C (74.8°F) in September, to a comfortable 19.3°C (66.7°F). Weather in October »

November, the last month of the autumn, in Ulsan, is another mild month, with average temperature ranging between min 8°C (46.4°F) and max 13.5°C (56.3°F). In November, the average high-temperature drops, from an enjoyable 19.3°C (66.7°F) in October, to a mild 13.5°C (56.3°F). Weather in November »

The first month of the winter, December, is still a chilly month in Ulsan, South Korea, with average temperature varying between 1.3°C (34.3°F) and 6.7°C (44.1°F). In December, the average high-temperature drops, from a moderate 13.5°C (56.3°F) in November, to a chilly 6.7°C (44.1°F). Weather in December »

What is the coldest month in Ulsan?

January is the coldest month in Ulsan, South Korea, with an average high-temperature of 4.8°C (40.6°F) and an average low-temperature of -1.3°C (29.7°F).

What is the least humid month in Ulsan?

With an average relative humidity of 60%, January is the least humid month in Ulsan.

How much does it rain in Ulsan?

Throughout the year, there are 129.7 rainfall days, and 902mm (35.51") of precipitation is accumulated.

When does it snow in Ulsan?

Months with snowfall in Ulsan are January through March and December.

How many days does it snow in Ulsan?

Throughout the year, in Ulsan, South Korea, there are 3.5 snowfall days, and 25mm (0.98") of snow is accumulated.

When is the lowest UV index in Ulsan?

January and December, with an average maximum UV index of 2, are months with the lowest UV index in Ulsan.

What is the snowiest month in Ulsan?

The month with the most snowfall in Ulsan, South Korea, is February when snow falls for 1.8 days and typically aggregates up to 13mm (0.51") of snow.

When is the sea coldest in Ulsan?

March is the month with the coldest seawater in Ulsan, with an average sea temperature of 12.3°C (54.1°F).

When it does not snow in Ulsan?

In Ulsan, South Korea, snow does not fall in April through November.

What month has the most sunshine in Ulsan?

The month with the most sunshine is May, with an average of 9.6h of sunshine.

When are the longest days in Ulsan?

With an average of 14.5h of daylight, June has the longest days of the year.

What is the most humid month in Ulsan?

The most humid month in Ulsan is July, with an average relative humidity of 86%.

What is the wettest month in Ulsan?

The month with the most rainfall in Ulsan, South Korea, is July when the rain falls for 19.8 days and typically aggregates up to 180mm (7.09") of precipitation.

What is the month with the highest UV index in Ulsan?

The month with the highest UV index in Ulsan, South Korea, is July, with an average maximum UV index of 7.

What is the warmest month in Ulsan?

August is the warmest month, with an average high-temperature of 28°C (82.4°F) and an average low-temperature of 23.3°C (73.9°F).

When is the sea warmest in Ulsan?

With an average sea temperature of 25.6°C (78.1°F), August is the month with the warmest seawater in Ulsan.

What is the driest month in Ulsan?

November is the month with the least rainfall in Ulsan, South Korea. Rain falls for 8.5 days and accumulates 28mm (1.1") of precipitation.

What is the month with the least sunshine in Ulsan?

With an average of 6h of sunshine, November has the least sunshine of the year in Ulsan, South Korea.

What is the month with the shortest days in Ulsan?

The month with the shortest days is December, with an average of 9.8h of daylight.
Average temperature - Ulsan, South Korea
Average humidity - Ulsan, South Korea
Average rainfall - Ulsan, South Korea
Average rainfall days - Ulsan, South Korea

The month with the highest number of rainy days is July (19.8 days).
The month with the least rainy days is January (5.3 days).

Average snowfall - Ulsan, South Korea

The month with the highest snowfall is February (13mm).
Months with the least snowfall are April, May, June, July, August, September, October and November (0mm).

Average snowfall days - Ulsan, South Korea

The month with the highest number of snowfall days is February (1.8 days).
Months with the least snowfall days are April, May, June, July, August, September, October and November (0 days).

Average sea temperature - Ulsan, South Korea

The best month for swimming (with the highest average sea temperature) is August (25.6°C).
The coldest month (with the lowest average sea temperature) is March (12.3°C).

Average daylight / Average sunshine - Ulsan, South Korea

The month with the longest days is June (Average daylight: 14.5h).
The month with the shortest days is December (Average daylight: 9.8h).

The month with the most sunshine is May (Average sunshine: 9.6h).
The month with the least sunshine is November (Average sunshine: 6h).