Contents
- Weather in April
- Frequently asked questions
- Average temperature in April
- Average pressure in April
- Average wind speed in April
- Average humidity in April
- Average rainfall in April
- Average rainfall days in April
- Average snowfall in April
- Average snowfall days in April
- Average sea temperature in April
- Average daylight in April
- Average sunshine in April
- Average sunshine days in April
- Average UV index in April
- Average cloud cover in April
- Average visibility in April
Weather in April
Temperature
April's arrival is noted with a slight increase in the average high-temperature, moving from a fresh 11.1°C (52°F) in March to a refreshing 15.8°C (60.4°F). In Ulsan, an average low-temperature of 9°C (48.2°F) is recorded during April nights.Humidity
In Ulsan, South Korea, the average relative humidity in April is 68%.Rainfall
In Ulsan, in April, it is raining for 11.3 days, with typically 81mm (3.19") of accumulated precipitation. In Ulsan, South Korea, during the entire year, the rain falls for 129.7 days and collects up to 902mm (35.51") of precipitation.Snowfall
In Ulsan, snow does not fall in April through November.Sea temperature
In Ulsan, the average seawater temperature in April is 14.4°C (57.9°F).Note: Beware of 14.4°C (57.9°F) waters at 13°C (55.4°F), they're uninviting, and a dip below 10°C (50°F) has risks of breath loss and cold shock, contingent on health.
Daylight
In Ulsan, the average length of the day in April is 13h and 5min.On the first day of April in Ulsan, sunrise is at 06:08 and sunset at 18:44. On the last day of the month, sunrise is at 05:31 and sunset at 19:08 KST.
Sunshine
In April, the average sunshine in Ulsan is 8.7h.UV index
The average daily maximum UV index in April is 4. A UV Index reading of 3 to 5 represents a moderate health risk from unprotected exposure to Sun's UV rays for ordinary individuals.Note: The maximum daily UV index of 4 in April interprets into the following recommendations:
Be vigilant - A duty to shield skin and eyes from injury exists. For health reasons, it's advisable to reduce direct sun exposure during peak hours around midday. Employ a wide-brim hat for potent defense against up to 50% of UV rays.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in April in Ulsan?
What is the average humidity in April in Ulsan?
How many days does it rain in April in Ulsan?
When it does not snow in Ulsan?
Does it snow in Ulsan in April?
What is the water temperature in April in Ulsan?
How many hours of daylight does Ulsan have in April?
When are sunrise and sunset in April in Ulsan?
How long on average sun shines in April in Ulsan?
What is the UV index intensity in April in Ulsan?
Average temperature in April
Ulsan, South Korea
- Average high temperature in April: 15.8°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 April: 9°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 April
Ulsan, South Korea
- Average pressure in April: 1015.2mbar
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 April
Ulsan, South Korea
- Average wind speed in April: 15km/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 April
Ulsan, South Korea
- Average humidity in April: 68%
The month with the highest relative humidity is July (86%).
The month with the lowest relative humidity is January (60%).
Average rainfall in April
Ulsan, South Korea
- Average rainfall in April: 81mm
The wettest month (with the highest rainfall) is July (180mm).
The driest month (with the least rainfall) is November (28mm).
Average rainfall days in April
Ulsan, South Korea
- Average rainfall days in April: 11.3 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 April
Ulsan, South Korea
- Average snowfall in April: 0mm
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 April
Ulsan, South Korea
- Average snowfall days in April: 0 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 April
Ulsan, South Korea
- Average sea temperature in April: 14.4°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 April /
Average sunshine in April
Ulsan, South Korea
- Average daylight in April: 13h and 1min
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 April: 8h and 4min
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 April
Ulsan, South Korea
- Average sunshine days in April: 17.1 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 April
Ulsan, South Korea
- Average UV index in April: 4
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 April
Ulsan, South Korea
- Average cloud cover in April: 36
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 April
Ulsan, South Korea
- Average visibility in April: 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).
Ulsan, South Korea
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