Mud festival in South Korea
In July, the peaceful seaside town of Boryeong turned into a chaos of mud for 9 days. We recommend putting this festival on your bucket list.
Siheung Weather in October
October in Siheung typically sees daytime highs of 20°C (68°F) and nighttime lows of 11°C (52°F). Expect some rainfall during the month.
Rainfall in Siheung in October
Looking at the last 30 years, the data shows about 7 days with rain, averaging 58 mm (2.3 in) for the month. Rainfall tends to arrive in short, intense showers this month. Rain days are few, but the showers can be surprisingly heavy.
Temperature in Siheung in October
Weather in Siheung is at its excellent in October. Highs reach 20°C (68°F), while nights settle around 11°C (52°F). The difference between afternoon and evening temperatures is usually noticeable. Nights cool down to 11°C (52°F), so a light jacket or extra layer is useful once the sun goes down. On the plus side, the cooler nights make for comfortable sleeping conditions.
Sunshine in Siheung in October
The city usually sees around 218 hours of sunlight, indicating many sunny days , a great month for sightseeing.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.
Siheung Temperature in October
Min Temperature
11°C (52°F)
Max Temperature
20°C (68°F)
Chance of Rain
22%
Precipitation
58 mm (2.3 in)
Rainy days
7 days
Humidity
66% *
Sunshine
218 hours *
Percentage Sunshine
*
* Data from: Incheon, South Korea (13 KM, 8 Miles).
Siheung Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Siheung - and find the best time to visit.
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Siheung typically drop from around 23°C (73°F) at the start of October to approximately 17°C (63°F) by the end. Nights are cool, with lows typically ranging from 5°C (41°F) to 13°C (55°F).
Average temperatures in October
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 October
Historical weather records for Siheung in October
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 October
Based on 49 years of weather observations (1976-2025), these are the most extreme conditions recorded in Siheung.
- Siheung recorded its highest October temperature of 29°C (84°F) on October 1, 1978.
- On October 23, 1981, Siheung saw its coldest October day with temperatures maxing out at 6°C (43°F).
- The coldest night in October in Siheung was on October 29, 2002, with a minimum of -4°C (25°F).
Best Places in South Korea in October
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 October →
perfect weather
pleasant
tolerable
unpleasant
poor
Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).
What to Wear in Siheung in October
Comfortable temperatures call for an easy wardrobe in October. Pack summer basics like t-shirts and shorts, but include a light jacket for cooler moments. A pair of comfortable walking shoes is essential. Wet weather is likely, so pack waterproof gear for multiple rainy days. And with plenty of sunshine hours, don’t forget sunglasses, sunscreen, and maybe a sun hat.
What To Do in Siheung in October
We rated the following activities from 1 (least suitable) to 10 (best) to do.
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Cycling10/10 -
Walking10/10 -
Barbeque9/10 -
Camping8/10 -
Outdoor sports10/10
Siheung 3-Day Forecast
More climate data for Siheung
Temperature Rainfall Sunshine Humidity
See the full Siheung climate overview or explore weather in South Korea.
Popular in October
Where to go in October - average daytime high across popular destinations.
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Mud festival in South Korea
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