January weather forecastUlsan, South Korea
January
Weather in January
Ulsan, South Korea, greets the new year with cold temperatures and snowfall. This month records the coldest of the year with maximum and minimum average temperatures settling at is 4.8°C (40.6°F) and -1.3°C (29.7°F) respectively. It's a wintry start to the year that offers crisp morning walks and cozy nights. The city experiences a relatively dry season, despite occasional precipitation. The chill is complemented by clear skies, long daylight hours, and relatively low humidity.Temperature
Ulsan's January weather, with an average high temperature of 4.8°C (40.6°F) and an average low temperature of -1.3°C (29.7°F), tends to be the coldest of the year.Humidity
With an average relative humidity of 60%, January is the least humid month.Rainfall
In January, the rain falls for 5.3 days. Throughout January, 30mm (1.18") of precipitation is accumulated. Throughout the year, there are 129.7 rainfall days, and 902mm (35.51") of precipitation is accumulated.Snowfall
Months with snowfall in Ulsan are January through March and December. In Ulsan, in January, during 0.5 snowfall days, 5mm (0.2") of snow is typically accumulated. Throughout the year, there are 3.5 snowfall days, and 25mm (0.98") of snow is accumulated.Sea temperature
In Ulsan, in January, the average water temperature is 13.9°C (57°F).Note: Dipping into 13.9°C (57°F) below 10°C (50°F) is possible with the right protection; absent that, anticipate cold shock and hampered breathing. Swimming momentarily at 13°C (55.4°F) can be jarring.
Daylight
In January, the average length of the day in Ulsan is 10h and 4min.On the first day of the month, sunrise is at 07:31 and sunset at 17:19. On the last day of January, in Ulsan, sunrise is at 07:23 and sunset at 17:48 KST.
Sunshine
The average sunshine in January in Ulsan, South Korea, is 6.3h.UV index
January and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index of 2, and less, symbolizes a low health risk from unsafe exposure to UV radiation for ordinary individuals.Note: The daily high UV index of 2 in January translates into this advice:
Children, babies, and those with sensitive skin should always be shielded from long periods of sun exposure. The intensity of the Sun's UV radiation during midday suggests reducing time spent outdoors. For minimizing sun-related eye damage, always choose sunglasses with UVA and UVB coverage. Alert! The snow's reflection can amplify the UV radiation of the Sun nearly twice.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in January
Ulsan, South Korea
- Average high temperature in January: 4.8°C
The warmest month (with the highest average high temperature) is August (28°C).
The month with the lowest average high temperature is January (4.8°C).
- Average low temperature in January: -1.3°C
The month with the highest average low temperature is August (23.3°C).
The coldest month (with the lowest average low temperature) is January (-1.3°C).
Average pressure in January
Ulsan, South Korea
- Average pressure in January: 1023.1mbar
The month with the highest atmospheric pressure is January (1023.1mbar).
The month with the lowest atmospheric pressure is July (1007.6mbar).
Average wind speed in January
Ulsan, South Korea
- Average wind speed in January: 17.1km/h
The windiest months (with the highest average wind speed) are January and December (17.1km/h).
The calmest month (with the lowest average wind speed) is June (11.5km/h).
Average humidity in January
Ulsan, South Korea
- Average humidity in January: 60%
The month with the highest relative humidity is July (86%).
The month with the lowest relative humidity is January (60%).
Average rainfall in January
Ulsan, South Korea
- Average rainfall in January: 30mm
The wettest month (with the highest rainfall) is July (180mm).
The driest month (with the least rainfall) is November (28mm).
Average rainfall days in January
Ulsan, South Korea
- Average rainfall days in January: 5.3 days
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 in January
Ulsan, South Korea
- Average snowfall in January: 5mm
The month with the highest snowfall is February (13mm).
The months with the least snowfall are April, May, June, July, August, September, October and November (0mm).
Average snowfall days in January
Ulsan, South Korea
- Average snowfall days in January: 0.5 days
The month with the highest number of snowfall days is February (1.8 days).
The months with the least snowfall days are April, May, June, July, August, September, October and November (0 days).
Average sea temperature in January
Ulsan, South Korea
- Average sea temperature in January: 13.9°C
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 in January /
Average sunshine in January
Ulsan, South Korea
- Average daylight in January: 10h and 6min
The month with the longest days is June (Average daylight: 14h and 30min).
The month with the shortest days is December (Average daylight: 9h and 48min).
- Average sunshine in January: 6h and 18min
The month with the most sunshine is May (Average sunshine: 9h and 36min).
The month with the least sunshine is November (Average sunshine: 6h and 0min).
Average sunshine days in January
Ulsan, South Korea
- Average sunshine days in January: 24.8 days
The month with the most sunshine days is January (24.8 days).
The month with the least sunshine days is July (8.7 days).
Average UV index in January
Ulsan, South Korea
- Average UV index in January: 2
The month with the highest UV index is July (UV index 7).
The months with the lowest UV index are January and December (UV index 2).
Average cloud cover in January
Ulsan, South Korea
- Average cloud cover in January: 26
The month with the most cloud cover is July (Cloud cover 46).
The month with the least cloud cover is December (Cloud cover 25).
Average visibility in January
Ulsan, South Korea
- Average visibility in January: 10km
The months with the highest visibility are January, February, March, April, May, June, August, September, October, November and December (10km).
The month with the lowest visibility is July (9km).
