Climate Overview
The climate in Naesŏ is temperate. The average annual temperature is 15°C and approximately 1277mm of precipitation falls per year. September is the wettest month, receiving around 213mm of rainfall. Naesŏ 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 -2°C.
Temperature
Temperatures in Naesŏ vary considerably across the year, with a 33°C difference between the coldest and warmest months. The warmest month is August, when average highs reach 31°C and the mean temperature sits around 27°C. The coldest month is January, when overnight lows fall to -2°C and the daily average is 2°C. On average, daily temperatures fluctuate by about 10°C between overnight lows and afternoon highs. The sharpest temperature change occurs between November and December, with a 7°C shift in average temperatures.
Precipitation
Naesŏ is a fairly wet location, receiving approximately 1277mm of precipitation annually, which averages out to around 106mm per month. The wettest month is September, averaging 213mm of rainfall. July and August also tend to see above-average precipitation. The driest month is December, with just 24mm. That's 189mm less than September, 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.
Wind
Naesŏ 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 June, 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.
Seasons
7 days until Autumn
It is currently summer in Naesŏ, which began on June 21, 2026. Naesŏ is in the Northern Hemisphere, where spring begins in March, summer in June, autumn in September, and winter in December. The warmest period peaks in August at around 31°C, while the coldest stretch bottoms out in January near -2°C. Autumn is next, beginning on September 23, 2026 (7 days from now).
Spring
Temperatures range from 4 to 25°C. Precipitation is moderate at around 274mm for the season, averaging 91mm per month. Winds are generally light, averaging 9km/h. An umbrella or waterproof jacket is advisable as spring showers are frequent.
Summer
Temperatures range from 19 to 31°C. Rainfall is heavy, totalling around 552mm across the season with a monthly average of 184mm. Winds are generally light, averaging 8km/h. Light, breathable clothing is ideal. Perfect conditions for outdoor activities.
Autumn
Temperatures range from 5 to 27°C. Rainfall is heavy, totalling around 356mm across the season with a monthly average of 119mm. Winds are generally light, averaging 9km/h. A waterproof jacket and sturdy footwear are recommended as rain becomes more frequent.
Winter
Temperatures range from -2 to 10°C. Rainfall is relatively light, with around 96mm over the season and a monthly average of 32mm. Winds are generally light, averaging 10km/h. A warm coat and layers are recommended, especially for early mornings and evenings.
Monthly Climate Data
The table below shows monthly climate averages for Naesŏ 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. 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.
