Climate Insights for Seoul

The climate in Seoul is temperate. The average annual temperature is 13°C and approximately 1,201 mm of precipitation falls per year. July is the wettest month, receiving around 287 mm of rainfall. Seoul is in the Northern Hemisphere. Summer begins at the end of June and lasts through September. The summer months are: August, July, June. The coldest months are January, December, February, when temperatures can drop to -7°C. Light snow can occur between January and December.The climate in Seoul is temperate. The average annual temperature is 55°F and approximately 47.3 in of precipitation falls per year. July is the wettest month, receiving around 11.3 in of rainfall. Seoul is in the Northern Hemisphere. Summer begins at the end of June and lasts through September. The summer months are: August, July, June. The coldest months are January, December, February, when temperatures can drop to 20°F. Light snow can occur between January and December.

Seoul has a wide annual temperature range, spanning 37°C from the coldest to warmest months. The warmest month is August, when average highs reach 30°C and the mean temperature sits around 26°C. The coldest month is January, when overnight lows fall to -7°C and the daily average is -2°C. On average, daily temperatures fluctuate by about 9°C between overnight lows and afternoon highs. The sharpest temperature change occurs between November and December, with a 8°C shift in average temperatures.Seoul has a wide annual temperature range, spanning 66°F from the coldest to warmest months. The warmest month is August, when average highs reach 86°F and the mean temperature sits around 80°F. The coldest month is January, when overnight lows fall to 20°F and the daily average is 28°F. On average, daily temperatures fluctuate by about 17°F between overnight lows and afternoon highs. The sharpest temperature change occurs between November and December, with a 14°F shift in average temperatures.

Seoul is a fairly wet location, receiving approximately 1,201 mm of precipitation annually, which averages out to around 100 mm per month. The wettest month is July, averaging 287 mm of rainfall. August and September also tend to see above-average precipitation. The driest month is January, with just 20 mm. That's 267 mm less than July, the wettest month. Rainfall is heavily concentrated in certain months, creating a distinct wet and dry season. Visitors should plan around these patterns, as the difference between peak and low months is dramatic. Light snowfall can occur between January and December, totalling around 24cm annually. February is the snowiest month with approximately 7cm.Seoul is a fairly wet location, receiving approximately 47.3 in of precipitation annually, which averages out to around 3.9 in per month. The wettest month is July, averaging 11.3 in of rainfall. August and September also tend to see above-average precipitation. The driest month is January, with just 0.8 in. That's 10.5 in less than July, the wettest month. Rainfall is heavily concentrated in certain months, creating a distinct wet and dry season. Visitors should plan around these patterns, as the difference between peak and low months is dramatic. Light snowfall can occur between January and December, totalling around 9in annually. February is the snowiest month with approximately 3in.

Seoul is relatively calm, with an average annual wind speed of 9km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is February, averaging 10km/h, though still comfortable for most outdoor activities. The calmest conditions occur in September, with average winds dropping to 8km/h, making it an ideal period for wind-sensitive activities. Wind conditions are fairly consistent throughout the year, varying by only 2km/h between the calmest and windiest months.Seoul is mildly breezy, with an average annual wind speed of 5mph. For context, sustained winds below 7mph are generally light, while anything above 16mph is considered strong. The windiest month is February, averaging 6mph, though still comfortable for most outdoor activities. The calmest conditions occur in September, with average winds dropping to 5mph, making it an ideal period for wind-sensitive activities. Wind conditions are fairly consistent throughout the year, varying by only 1mph between the calmest and windiest months.

The table below shows monthly climate averages for Seoul based on historical weather data. Min and max temperatures represent typical overnight lows and afternoon highs for each month, shown in degrees Celsius (°C). Precipitation is measured in millimetres (mm) and indicates the average total rainfall per month. Snow is measured in centimetres (cm) and reflects average monthly snowfall accumulation. Wind speed is the average sustained speed in kilometres per hour (km/h). All values are based on averages from over 10 years of historical weather data. The current month is highlighted for quick reference.The table below shows monthly climate averages for Seoul based on historical weather data. Min and max temperatures represent typical overnight lows and afternoon highs for each month, shown in degrees Fahrenheit (°F). Precipitation is measured in millimetres (mm) and indicates the average total rainfall per month. Snow is measured in inches (in) and reflects average monthly snowfall accumulation. Wind speed is the average sustained speed in miles per hour (mph). All values are based on averages from over 10 years of historical weather data. The current month is highlighted for quick reference.