Sejong, South Korea Weather
- Sejong, South Korea Weather
- Current conditions
- Weather forecast
- Averages and extremes
- Yesterday's Data
- Temperature and possibility of rain in Sejong over the next 12 hours
- Temperature and possibility of rain in Sejong in the coming days
- Rainfall in Sejong in the coming days
- Sejong Weather Summary
- Weather averages by month
- Sejong's weather
- Frequently asked questions
- Comments
Current conditions
Condition: Clear Sky
Pressure: 1,005 hPa
Feel like: 34 °C
Temperature: 27°C
Cloud: 19%
Humidity: 87%
Wind: ESE - 6 km/h
Visibility: 18.36 km
30 Day Averages and Extremes
- Average high 31.63°C
- Average low 23.1°C
- Hottest day 36°C (06 August 2026)
- Coldest day 20°C (10 August 2026)
- Average humidity 75.77%
- Days with precipitation 26 days
- Highest precipitation 95 mm (22 July 2026)
Yesterday's Data
- Max: 35°C
- Min: 26°C
- Total Precipitation: 0 mm
Temperature and possibility of rain in Sejong over the next 12 hours
Temperature and possibility of rain in Sejong in the coming days
Rainfall in Sejong in the coming days
Sejong Climate Summary
Sejong features a Humid continental, severe dry winter, hot summer (Köppen classification: Dwa), with an average annual temperature of 13.55ºC (56.39ºF), which is about -0.05% lower than the national average for South Korea. Annually, the city experiences approximately 50.06 millimeters (1.97 inches) of rainfall, spread across 84.07 rainy days, accounting for 23.03% of the year.
| Longitude | 37.5518018 |
| Latitude | 127.0736345 |
| Yearly high temperature | 16.82ºC (62.28ºF) |
| Yearly low temperature | 8.49ºC (47.28ºF) |
| Hottest month | August 30.38ºC (86.68ºF) |
| Coldest month | January -6.13ºC (20.97ºF) |
| Yearly precip | 50.06mm (1.97in) |
| Days with rainfall | 84.07 days (23.03%) |
| Driest month | January (61.68%) |
| Wettest month | July (80.05%) |
Weather averages by month
| Month | High / Low (°C) | Rain |
|---|---|---|
| January | 0.36° / -6.13° | 2.36 days |
| February | 3.9° / -3.06° | 2.82 days |
| March | 10.56° / 1.97° | 4.36 days |
| April | 16.7° / 6.92° | 6.18 days |
| May | 23.24° / 12.28° | 6.36 days |
| June | 27.75° / 17.31° | 9.27 days |
| July | 29.23° / 21.58° | 16.27 days |
| August | 30.38° / 22.05° | 16.36 days |
| September | 26.02° / 16.89° | 7.0 days |
| October | 19.82° / 10.83° | 4.09 days |
| November | 11.49° / 4.64° | 5.73 days |
| December | 2.33° / -3.44° | 3.27 days |
Sejong's weather
Frequently asked questions
1. What is the hottest month in Sejong?
August has the highest average monthly temperature (daily mean of 30.38ºC) and January are the coolest (daily mean of -6.13ºC).
2. What should I wear in Sejong today?
For today's very hot weather in Sejong, with the high temperatures above 35ºC (95.0ºF), consider wearing:
- Ultra-thin, breathable socks
- High SPF sunscreen for outdoor activities
- Light, natural fabrics (like cotton or linen)
- UV-blocking sunglasses
Temperature
Air quality
Acceptable air quality, some pollutants present, minor health concerns for sensitive individuals
- CO2 504
- CO 336
- NH3 0
- NO2 109
- O3 4
- PM10 43
- PM25 42
- SO2 22
- CH4 2,018