The climate of Busan
Under the Köppen climate classification,
Busan is categorized as having a Humid subtropical climate comprising of a non-existent dry season. Positioned in the southeastern region of
South Korea, it strikes a balance between humidity, heat, and precipitation, giving rise to four distinct seasons.
Over the course of twelve months, the city's climate spans from immediate dips in temperature to precipitous leaps. With temperatures fluctuating from a low of 1.2°C (34.2°F) in the beginning months, they see a hike to a peak of 27.9°C (82.2°F) in
August. Humidity sees slight alterations across the year, generally hovering at around 60%, and peaking at 81% to 87% during the summer months.
Rainfall takes on a descending order pattern beginning with a below-average 14mm (0.55") in
January, an increase to 97mm (3.82") at its peak in
July before returning to 12mm (0.47") in
December. The highest number of rainy days is observed in August with 14.1 days, whereas the least amount can be seen in January with 4.6 days. Additionally, detectable snowfall only occurs in
November with 1mm (0.04").
Shedding light on unique weather conditions, the highest sea temperatures of 26.3°C (79.3°F) are noticed in August and lowest in
February at 13.3°C (55.9°F). Wind speeds scale from a high of 20.3km/h (12.6mph) to a lower limit of 13.6km/h (8.5mph). Interestingly, the highest UV index is noted in July, whereas the lowest occurs in the winter months of January and December.
The best time to visit Busan
The most favorable time for a visit to
Busan is during the stable, dry periods from
March to
June and from
September to
November. During these times, the weather remains pleasantly warm ranging from 11.8°C (53.2°F) to 20.1°C (68.2°F) with moderate humidity levels of 64% to 74%. The length of daylight varies from 12 hours to 14 hours, offering ample time to explore this vibrant city. Notably, the sun shines for nearly 7.6 to 9.8 hours a day providing visitors with an abundance of sunlight.
The worst time to visit Busan
Contrarily, the least welcoming period to tour
Busan is when it reaches its peak humidity levels, ranging from 81% to 87%, in the heart of the summer months, from
June to
August. Complemented by soaring temperatures with a high of 27.9°C (82.2°F) and a considerable increase in the volume of rainfall, reaching 97mm (3.82") to 69mm (2.72"), this time of year can be quite uncomfortable for visitors.
Spring weather in Busan
Spring in
Busan is lightly breezy with temperatures escalating from 6.1°C (43°F) to 20.1°C (68.2°F) between
March to
May. There is a gentle increase in humidity from 64% to 74% across these months as the season transitions into summer. Rainfall begins to pick up from 27mm (1.06") to 37mm (1.46") with rainy days increasing from 8.5 to 7.8. Daylight hours span from 12 to 14 hours, granting an extended period to relish the surroundings.
Summer weather in Busan
The summer season, which lasts from
June to
August, has the city under a heat spell with temperatures soaring to a scorching 27.9°C (82.2°F). The humidity persists in high 80s, making it feel hotter than the actual temperature. Rainfall experiences a sharp growth to 97mm (3.82") in
July before receding to 69mm (2.72") in August and the number of rainy days peaks at 14.1 in August. Sunshine hours reduce slightly from 9.5 to 8.8 hours. However, the hours of daylight remain around 14 hours, a delightful prospect for daytime activity enthusiasts.
Autumn weather in Busan
Following summer, the pendulum swings toward more pleasant conditions in Autumn, lasting from
September to
November. Temperatures gradually descend from 24.5°C (76.1°F) to 14.5°C (58.1°F) and humidity also sees a comfortable drop from 76% to 64%. The rainfall subsides considerably to 29mm (1.14") in
October, and the number of rainy days decreases from 9.1 to 6.4. Though daylight hours begin to reduce from 12.4 to 10.3, sunshine hours remain appreciable at around 7 hours, fostering suitable conditions for sightseeing.
Winter weather in Busan
The winter season encloses
Busan in a chilly embrace with temperatures plummeting to 1.2°C (34.2°F) along with a dip in humidity levels to 60% in
January. Rainfall recedes to a year-round low of 14mm (0.55") in January and 12mm (0.47") in
December, while snowfall, though scarce at 1mm (0.04"), can be experienced in
November. The number of daylight hours reduces to 9.8 in December, and sunshine hours hover around 6 hours a day. Therefore, visitors during this season must prepare for shorter days and low temperatures. Despite the cold, this period hosts numerous winter festivals appealing to a broad spectrum of tourists.
Weather in January
January in
Busan,
South Korea, experiences the coldest temperatures of the year with a low of 1.2°C (34.2°F) and a high of 6.1°C (43°F). Relative humidity stands at 60%, indicating dry air. As the start of the year, it serves as a crucial period marking the transition from the chilly winter to the mild spring conditions.
Weather in January »
Weather in February
February ushers in a slight warming trend in
Busan, with average temperatures increasing from the
January lows. Notably, relative humidity remains consistent at 60%, ensuring clear visibility of 10km (6.2mi) across the city. It might be winter, but the city records an average of 10.9 daylight hours, a significant improvement from the previous month.
Weather in February »
Weather in March
March signifies the arrival of spring in
Busan, marked by moderate temperatures, with average highs of 11.8°C (53.2°F). Notably, the daylight hours progressively increase to 12 hours, offering an ample time to explore the city.
Weather in March »
Weather in April
In
April,
Busan basks under warmer temperatures averaging between 10.7°C (51.3°F) and 15.4°C (59.7°F). Longer daylight hours mark the full swing of spring, prevalent with blooming flowers around the city parks. The wind speed starts to decrease, from 18.6km/h (11.6mph) in the previous month to 17.5km/h (10.9mph).
Weather in April »
Weather in May
In
May,
Busan ushers in the pre-summer season, with temperatures soaring as high as 19.8°C (67.6°F). Signifying the end of spring, the city experiences gradually increasing humidity levels. Longer hours of daylight provide an extended period to undertake outdoor activities.
Weather in May »
Weather in June
June in
Busan signifies the beginning of the hot summer season, marked by warm temperatures with an average high of 22.8°C (73°F). Humidity levels spike to 81%, making the heat relatively intense. Despite the dramatic change in weather conditions, wind speed dips slightly, contributing to the stifling feel.
Weather in June »
Weather in July
July in
Busan achieves the highest rainfall level of the year, recording a significant 97mm (3.82"). This heavy rainfall is accompanied by the highest temperatures of the year, reaching up to 25.8°C (78.4°F). Despite the high temperatures and humidity, sea temperatures also peak to 23.7°C (74.7°F), supporting various water sports.
Weather in July »
Weather in August
In
August,
Busan temperature reaches the year's peak with an average high of 27.9°C (82.2°F). This is accompanied by a marked drop in rainfall from
July's peak to 69mm (2.72"). The sea temperature warms further, averaging 26.3°C (79.3°F), ideal for swimming and other aquatic activities.
Weather in August »
Weather in September
September brings a gradual cooling trend to
Busan, with temperatures dropping from
August highs to a comfortable 24.5°C (76.1°F). Despite this decline, the city experiences the same amount of rainfall as in August, about 69mm (2.72").
Weather in September »
Weather in October
October in
Busan is a transition period from the warm summer to the cooler autumn, with temperatures ranging between 16°C (60.8°F) and 20.1°C (68.2°F). Notably, the rainfall drastically reduces to 29mm (1.14"), signalling the end of the wet season.
Weather in October »
Weather in November
In
November,
Busan experiences noticeably cooler temperatures, with highs receding to 14.5°C (58.1°F), hinting at the approaching winter. November is considered a drier month, having the year's second-lowest rainfall at 16mm (0.63").
Weather in November »
Weather in December
December in
Busan marks the year's end with a definite return to winter, featuring temperatures as low as 3.7°C (38.7°F). This month receives the lowest amount of rainfall, recorded at 12mm (0.47"), signalling the onset of cold, dry conditions.
Weather in December »
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