Siheung Weather in July
With daytime temperatures of 28°C (82°F) and nighttime lows of 22°C (72°F), July in Siheung brings high temperatures during the day. It is also the wettest month of the year, so pack an umbrella.
Rainfall in Siheung in July
The month brings the heaviest rain of the year, often in intense bursts. Make sure to have a poncho to stay dry during the showers. Climate statistics over the past 30 years suggest around 16 days of rain, with 301 mm (12 in) average for the month. Expect frequent rainfall this month, and not just light drizzle. When it rains, it tends to come down hard.
Temperature in Siheung in July
In July, expect high temperatures in Siheung, with highs of 28°C (82°F) and lows of 22°C (72°F) at night. The days can feel warmer than the evenings, so packing for both parts of the day is a good idea. Nights remain mild at 22°C (72°F), making evenings a pleasant time to be outdoors.
Sunshine in Siheung in July
The month brings about 161 hours of sunlight, offering a comfortable mix of sun and overcast.Our weather planner can help you find worldwide destinations with pleasant weather during this period. May and October typically offer the best weather for Siheung.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit South Korea, check out our Siheung's climate page.
Siheung Temperature in July
Min Temperature
22°C (72°F)
Max Temperature
28°C (82°F)
Chance of Rain
52%
Precipitation
301 mm (12 in)
Rainy days
16 days
Humidity
82% *
Sunshine
161 hours *
Percentage Sunshine
*
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Siheung typically stay consistent throughout July, with daily highs averaging around 28°C (82°F). Nights are warm, with lows typically ranging from 21°C (70°F) to 24°C (75°F).
Average temperatures in July
Daily Historical Precipitation
50-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in July
Historical weather for Siheung in July
Browse day-by-day weather records for Siheung spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Siheung historical weather extremes in July
Based on 49 years of weather observations in Siheung between 1976 and 2025, these are the recorded extremes.
- On July 23, 1994, temperatures climbed to 37°C (99°F), marking the warmest July day on record.
- The coldest July day was on July 3, 1976, with a maximum of 16°C (61°F).
- Siheung registered its coldest July night on July 3, 1976, with temperatures dropping to 14°C (57°F).
Best Places in South Korea in July
Find out more about the weather in South Korea and which places have the best travel conditions in this month. See all of South Korea in July →
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What to Wear in Siheung in July
Warm weather calls for comfortable, breathable clothing in July. Cotton t-shirts, shorts, light dresses, and sandals are perfect. You might still want a light layer for evenings or air-conditioned places (for example buses). Also bring a poncho, it will rain a lot! Waterproof everything you can. Sunglasses could come in handy during the sunnier parts of your trip.What To Do in Siheung in July
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit South Korea, check out our Siheung's climate page.
Temperature Rainfall Sunshine Humidity
See the full Siheung climate overview or explore weather in South Korea.
