Climate Insights for Namp’o

The climate in Namp’o is temperate. The average annual temperature is 12°C and approximately 927mm of precipitation falls per year. August is the wettest month, receiving around 214mm of rainfall. Namp’o 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 -6°C. Light snow can occur between January and December.

Temperatures in Namp’o vary considerably across the year, with a 35°C difference between the coldest and warmest months. The warmest month is August, when average highs reach 29°C and the mean temperature sits around 26°C. The coldest month is January, when overnight lows fall to -6°C and the daily average is -3°C. Daily temperature variation is modest, with an average difference of 8°C between highs and lows. The sharpest temperature change occurs between October and November, with a 8°C shift in average temperatures.

Namp’o is a moderately rainy area, receiving approximately 927mm of precipitation annually, which averages out to around 77mm per month. The wettest month is August, averaging 214mm of rainfall. July and June also tend to see above-average precipitation. The driest month is January, with just 15mm. That's 198mm less than August, 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 23cm annually. January is the snowiest month with approximately 7cm.

Namp’o is relatively calm, with an average annual wind speed of 3km/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 4km/h, though still comfortable for most outdoor activities. The calmest conditions occur in June, with average winds dropping to 3km/h, making it an ideal period for wind-sensitive activities. Wind conditions are fairly consistent throughout the year, varying by only 1km/h between the calmest and windiest months.

It is currently spring in Namp’o, which began on March 20, 2026. Namp’o 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 29°C, while the coldest stretch bottoms out in January near -6°C. Summer is next, beginning on June 21, 2026 — 4 days from now.

The best time to visit Namp’o is during September, when the weather is most comfortable for travellers. During these months, average temperatures hover around 21°C with modest rainfall averaging 93mm per month. By contrast, August can be uncomfortably hot with highs reaching 29°C, while January is the coldest period with lows dropping to -6°C. Despite being the best months overall, some rain is still likely — pack a waterproof layer and plan a mix of indoor and outdoor activities.

The table below shows monthly climate averages for Namp’o 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.