Weather in Busan

Stay up to date with the current weather conditions in the city of Busan. Below you will find the latest data, detailed forecasts, and useful charts to help you plan your time in the city.

The climate in Busan can be characterised as temperate, with four distinct seasons. The city experiences notable fluctuations in temperature and rainfall throughout the year, which is typical for regions with monsoon influence. This means travellers can expect diverse weather conditions depending on the time of their visit.

Summer in Busan (June-August) is warm and humid, with average temperatures reaching 25-27°C, particularly in July and August. This period is also characterised by the highest rainfall, with a peak in rainy days during July and August, indicating the summer monsoon season. Winters (December-February) are relatively mild here but cool, with average temperatures around 3-5°C and little precipitation. Spring (March-May) and autumn (September-November) are transitional seasons with pleasant temperatures and moderate rainfall, often considered the best times to visit.

Overall, the weather in Busan offers variety: from warm and humid summer months, ideal for beach holidays, to cool and drier winters. Spring and autumn delight with comfortable temperatures suitable for exploring the city and its numerous attractions. The most notable feature is the summer rainy season, which is worth considering when planning your trip.

The temperature regime in Busan demonstrates a clear change of seasons with notable fluctuations throughout the year. The hottest month is usually August, when the average temperature reaches 26.8°C, and maximum values can rise to 29.2°C. July is also very warm, with an average temperature of 25.6°C. Conversely, the coldest month is January, with an average temperature of 3.1°C and minimums dropping on average to -0.7°C, indicating the possibility of light frosts.

Summer months in Busan, from June to August, are characterised by warm and humid weather. Average daytime temperatures during this period range from 21.6°C in June to peak values in July and August. Nights also remain warm, with minimum temperatures rarely dropping below 18.5°C in June and 23-24°C in July-August. Given the high number of rainy days during this period, the air is often saturated with moisture, which intensifies the feeling of heat.

Winter in Busan, covering December, January, and February, is relatively mild but cool. Average monthly temperatures vary from 3.1°C in January to 5.3°C in February. Daytime highs usually stay in the range of 6.9°C (January) to 9.1°C (February), while nighttime lows can approach zero or drop slightly below, especially in January. Temperature fluctuations between day and night are more pronounced in the transitional seasons (spring, autumn) and winter than in summer. For example, in November, the difference between the average maximum (15.2°C) and average minimum (7.1°C) temperature is about 8°C, whereas in July this difference is smaller – about 4.7°C (27.9°C max and 23.2°C min).

Rainfall distribution in Busan has a strongly pronounced seasonal character, which is important to consider when planning a trip. The city experiences a distinct wet season in summer, associated with monsoon influence, and a significantly drier period during the winter months. This means the amount and frequency of precipitation vary greatly throughout the year.

The highest precipitation activity is observed in the summer months, especially from June to September. The peak falls on July and August, when the highest number of days with precipitation is registered – an average of 16 days in each of these months, meaning it rains approximately every other day. In terms of total rainfall, the wettest are July and September (7 mm each), followed by June and August (6 mm each). During this period, precipitation becomes significantly more frequent, which is typical for the summer monsoon in the region, although the total monthly rainfall, according to the provided data, remains comparatively low.

Winter months, conversely, are the driest in Busan. The lowest amount of precipitation (just 1 mm) is observed in January and December. In November and December, the minimum number of days with precipitation is also recorded – just 3 days per month. Considering that average minimum temperatures in January (around -0.7°C) and December (around 0.3°C) can drop to the freezing point or lower, winter precipitation may fall not only as rain but also, possibly, as light snow or wet snow, although the total amount remains insignificant.

Spring (March-May) and autumn (October) months represent transitional periods with moderate rainfall. For example, in March and May, 3-4 mm of precipitation falls over 7-8 rainy days, and in October – 3 mm of precipitation and about 6 rainy days. This makes spring and autumn more predictable in terms of rainfall compared to the peak of summer humidity or the aridity of winter.

When planning a trip to Busan, it is important to choose the right wardrobe to feel comfortable in any weather. Regardless of the season, comfortable walking shoes will be your best companion, as the city invites long walks. The principle of layering clothing is also very relevant, as the weather can change throughout the day, especially in the transitional seasons. In summer, from June to August, when Busan is warm and humid (average temperature 21-27°C) and the highest amount of rainfall occurs (especially in July and August, when there are up to 16 rainy days), be sure to bring light, breathable clothing, sunscreen, a hat, and a compact umbrella or a light raincoat.

Spring (March-May) and autumn (September-November) in Busan are excellent times to visit with pleasant, moderate temperatures. In spring, the temperature gradually rises from 9°C to 18°C, and in autumn, it cools down from 23°C in September to 11°C in November. During these periods, you will need t-shirts, light sweaters or fleece jackets, jeans or trousers, as well as a light jacket or windbreaker. Although there is less rainfall than in summer, an umbrella may still come in handy, especially in March, May, and September, when the number of rainy days ranges from 7 to 13.

Winter in Busan (December-February) is quite cool, with average temperatures around 3-5°C, and nighttime minimums can drop to -0.7°C in January. Although precipitation is minimal (1-2 mm and 3-5 rainy days per month), for a comfortable stay you will need warm clothes: a winter jacket or coat, sweaters, warm trousers, a hat, a scarf, and gloves. Layering will also be useful here, allowing you to adapt to the temperature difference between indoors and outdoors.