July weather forecast
Seoul, South Korea

July is mostly characterized by Seoul's hot and humid conditions due to the monsoon season. Raincoats and umbrellas become essential items for residents and tourists alike. Despite the heat, traditional summer celebrations continue with enthusiasm. With a record rainfall of 395mm (15.55"), July is the wettest month of the year. August carries on with the monsoon pattern, with high heat and humidity levels.

Temperature

Seoul experiences a minor change to a still warm 28.6°C (83.5°F) in average high-temperature during July, closely reflecting June. During the month of July, the temperature falls to an average of 21.9°C (71.4°F).

Heat index

July's heat index is computed to be a hot 33°C (91.4°F). Adopt extra preventive measures, the occurrence of heat cramps and heat exhaustion is likely. Heatstroke may follow extended activity.
Heat index determinations are made taking into account the shade and light air movements. A rise of up to 15 Fahrenheit (8 Celsius) degrees in the heat index could result from direct sunlight.
Note: The heat index, also known as 'real feel' or 'feels like', ties air temperature with relative humidity to produce the perceived temperature sensation. A person's impression of weather can be swayed by numerous aspects, among them metabolic variations, pregnancy, and activity levels. Direct sun rays have a notable impact on perceived temperature, which can raise the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are of high significance for children. Young ones often do not realize the necessity to rest and replenish their fluids. Thirst is a delayed indication of dehydration - keeping hydrated, particularly in prolonged physical activity, is crucial.

Humidity

July is the most humid month, with an average relative humidity of 78.3%.

Rainfall

July is the month with the most rainfall. Rain falls for 16.3 days and accumulates 395mm (15.55") of precipitation.

Daylight

The average length of the day in July is 14h and 28min.
On the first day of the month, sunrise is at 05:14 and sunset at 19:57. On the last day of July, sunrise is at 05:35 and sunset at 19:41 KST.

Sunshine

The month with the least sunshine is July, with an average of 3.9h of sunshine.

UV index

July is the month with the highest UV index in Seoul, with an average maximum UV index of 10. A UV Index reading of 8 to 10 represents a very high threat to health from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: In July, the maximum UV index of 10 translates into these guidelines:
With the absence of protection, damage to skin and eyes can occur instantly. Ensure precautions are taken. Stay in the shade and limit sun exposure from 10 a.m. to 4 p.m., when UV radiation is most potent. Keep in mind that shade structures like parasols or canopies do not offer full protection. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades. For optimal sun protection, use sunscreen of no less than 30 SPF. This not only prevents sunburn but also reduces radiation damage.