July weather forecastUlsan, South Korea

July

Weather in July

The peak of summer arrives in Ulsan in July with the highest maximum temperatures reaching up to 26.4°C (79.5°F). Ironically, this month also witnesses the peak of the rainy season with a whopping 180mm (7.09") of rainfall. High moisture content in the atmosphere leads to an increase in relative humidity, making the heat feel more oppressive. In contrast, the sea temperatures touch their yearly high, offer locals respite from the land heat. Despite the extreme weather, Ulsan life continues to thrive.

Temperature

A minor escalation in the average high-temperature is seen in Ulsan with the onset of July, moving from 23.4°C (74.1°F) in June to a still warm 26.4°C (79.5°F). Ulsan, in July, registers an average low temperature of 21.5°C (70.7°F), showing a minute reduction from daily highs.

Humidity

With an average relative humidity of 86%, July is the most humid month.

Rainfall

July is the month with the most rainfall in Ulsan. Rain falls for 19.8 days and accumulates 180mm (7.09") of precipitation.

Snowfall

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

Sea temperature

In Ulsan, the average seawater temperature in July is 22.9°C (73.2°F).
Note: Considering one's resistance to cold, elements like sunshine, wind, and the prevailing temperature matter when taking a swim in 22.9°C (73.2°F) waters. (For comparison, the Olympic swimming standard is set between 25°C (77°F) and 28°C (82.4°F).)

Daylight

In Ulsan, the average length of the day in July is 14h and 17min.
On the first day of July in Ulsan, sunrise is at 05:11 and sunset at 19:42. On the last day of the month, sunrise is at 05:30 and sunset at 19:27 KST.

Sunshine

In July, the average sunshine in Ulsan is 8.5h.

UV index

July is the month with the highest UV index, with an average maximum UV index of 7. A UV Index value of 6 to 7 symbolizes a high health vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.
Note: In July, the maximum UV index of 7 suggests these recommendations:
Fend off overexposure. Sun protection is vital. Stay out of direct sunlight and seek shade between 10 a.m. and 4 p.m., when UV radiation is strongest, but remember that shade devices may not offer full sun protection. Opt for tightly woven and loose clothing to enhance protection from the Sun. Heed this! UV intensity is much stronger when reflected off sand and water.

Updated: Jan 31, 2024
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

The high-temperature, in July, in Ulsan, is 26.4°C (79.5°F), while the low-temperature averages to 21.5°C (70.7°F).

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

In Ulsan, the average relative humidity in July is 86%.

July is the month with the most rainfall in Ulsan. Rain falls for 19.8 days and accumulates 180mm (7.09") of precipitation.

In Ulsan, South Korea, in July, during 19.8 rainfall days, 180mm (7.09") of precipitation is typically accumulated.

April through November are months without snowfall in Ulsan.

In Ulsan, South Korea, the average seawater temperature in July is 22.9°C (73.2°F). Depending on a person's sensitivity to cold, with regards to sunshine, wind, and air temperature, a quick swim in 22.9°C (73.2°F) water may be enjoyable.

In Ulsan, the average day length in July is 14h and 17min.

In July, on the first day of the month, sunrise is at 05:11 and sunset at 19:42. On the last day of the month, sunrise is at 05:30 and sunset at 19:27 KST.

In July, the average sunshine duration in Ulsan is 8.5h.

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

In Ulsan, the average daily maximum UV index in July is 7. A UV Index of 6 to 7 symbolizes a high hazard to health from unsafe exposure to Sun's UV rays.

Today

Tomorrow

Long-term

Year J F M A M J July A S O N D

Jun

July

Aug

Average high temperature

23.4°C

26.4°C

28°C

Average low temperature

Average pressure

Average wind speed

Average max. wind speed

12.5km/h

14.2km/h

14.8km/h

Average wind speed gusts

Average humidity

Average rainfall

Average rainfall days

Average snowfall

Average snowfall days

Average sea temperature

Average daylight

Average sunshine

Average sunshine days

13.4

8.7

11.8

Average UV index

Average cloud cover

Average visibility

Average temperature in July
Ulsan, South Korea

Average high temperature in July: 26.4°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 July: 21.5°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 July
Ulsan, South Korea

Average pressure in July: 1007.6mbar

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 July
Ulsan, South Korea

Average wind speed in July: 13.3km/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 July
Ulsan, South Korea

Average humidity in July: 86%

The month with the highest relative humidity is July (86%).
The month with the lowest relative humidity is January (60%).

Average rainfall in July
Ulsan, South Korea

Average rainfall in July: 180mm

The wettest month (with the highest rainfall) is July (180mm).
The driest month (with the least rainfall) is November (28mm).

Average rainfall days in July
Ulsan, South Korea

Average rainfall days in July: 19.8 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 July
Ulsan, South Korea

Average snowfall in July: 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 July
Ulsan, South Korea

Average snowfall days in July: 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 July
Ulsan, South Korea

Average sea temperature in July: 22.9°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 July /
Average sunshine in July
Ulsan, South Korea

Average daylight in July: 14h and 18min

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 July: 8h and 30min

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 July
Ulsan, South Korea

Average sunshine days in July: 8.7 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 July
Ulsan, South Korea

Average UV index in July: 7

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 July
Ulsan, South Korea

Average cloud cover in July: 46

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 July
Ulsan, South Korea

Average visibility in July: 9km

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).