In Busan (or Pusan), Korea's second largest city, located on the southeast coast, the climate is
: winters are quite cold but sunny, while summers are hot, muggy and rainy, but tempered by the breeze. Like the rest of Korea, the city is affected by the
: in winter, cold northwest currents prevail, while in summer, they will be replaced by hot and humid currents of tropical origin. Spring and autumn are transitional periods, mild and pleasant, especially the month of October.
, the average temperature is a few degrees above freezing (0 °C or 32 °F). There are quite mild periods, with highs around or even above 10 °C (50 °F), but also cold periods, sometimes freezing. In the worst moments, the temperature can drop to -10 °C (14 °F) or even below, though it goes better than in Seoul, where the temperature can plunge to -20 °C (-4 °F).
Busan is located in the least snowy area of Korea, that of the south-east coast: here, snowfalls are very rare, and generally light.
: from June to August, more than 700 millimeters (27.5 inches) of rain fall. The rains can sometimes be torrential. The worst month, the wettest and least sunny, is generally July. In summer, there can be also periods of good weather, which can be very hot, with highs about 35 °C (95 °F).
In autumn, rainfall decreases, and by October, the rains are quite rare.
in Busan is good in winter, when there are many sunny days, while it reaches its minimum in July, when, owing of the summer monsoon, cloudy skies prevail.
becomes warm enough for swimming in August and September, but it is basically acceptable also in July.
From July to early October (and occasionally, also in the second half of June), Busan can be affected by
, the tropical cyclones of South-East Asia. Typhoons affect in a particular way this southern coastal area, bringing torrential rain and strong winds, as happened with super-typhoon Sarah in September 1959, with typhoon Maemi in September 2003, and more recently, with typhoon Sanba on September 17, 2012, and with typhoon Chaba on October 4-5, 2016.
The best times to visit Busan are spring and autumn, and particularly from late April to late May and from mid-October to early November.
. Here are the average temperatures.
January, the coldest month of the year, is generally a cold month. The average temperature is of
2.4 °C, with a minimum of
-2.6 °C and a maximum of
7.4 °C.
On the coldest nights of the month, the temperature usually drops to around
-8.5 °C. However, it dropped to
-13 °C in January 2011.
On the warmest days of the month, the temperature usually reaches around
13.5 °C. However, it reached
19 °C in January 2002.
Precipitation amounts to
35 mm, distributed over 5 days.
The day lasts on average 10 hours and 5 minutes.
There are on average 6.5 hours of sunshine per day. So, the sun shines 65% of the time.
The average humidity is 53%.
The average wind speed is of
11.5 kph.
The average sea temperature is of
14.2 °C. Therefore, the sea is very cold for swimming.
February is generally a quite cold month. The average temperature is of
4.5 °C, with a minimum of
-0.7 °C and a maximum of
9.6 °C.
On the coldest nights of the month, the temperature usually drops to around
-6.5 °C. However, it dropped to
-11 °C in February 1991.
On the warmest days of the month, the temperature usually reaches around
16.5 °C. However, it reached
22 °C in February 1998.
Precipitation amounts to
50 mm, distributed over 6 days.
The day lasts on average 10 hours and 55 minutes.
There are on average 7 hours of sunshine per day. So, the sun shines 62% of the time.
The average humidity is 54%.
The average wind speed is of
11.7 kph.
The average sea temperature is of
12.7 °C. Therefore, the sea is very cold for swimming.
March is generally a mild month. The average temperature is of
8.6 °C, with a minimum of
3.6 °C and a maximum of
13.7 °C.
On the coldest nights of the month, the temperature usually drops to around
-2.5 °C. However, it dropped to
-6 °C in March 1993.
On the warmest days of the month, the temperature usually reaches around
20.5 °C. However, it reached
29 °C in March 2019.
Precipitation amounts to
90 mm, distributed over 8 days.
The day lasts on average 12 hours and 0 minutes.
There are on average 6.5 hours of sunshine per day. So, the sun shines 54% of the time.
The average humidity is 59%.
The average wind speed is of
12.4 kph.
The average sea temperature is of
12.6 °C. Therefore, the sea is very cold for swimming.
April is generally a mild month. The average temperature is of
13.8 °C, with a minimum of
8.8 °C and a maximum of
18.8 °C.
On the coldest nights of the month, the temperature usually drops to around
2.5 °C. However, it dropped to
-2 °C in April 1996.
On the warmest days of the month, the temperature usually reaches around
25 °C. However, it reached
28 °C in April 1993.
Precipitation amounts to
140 mm, distributed over 9 days.
The day lasts on average 13 hours and 5 minutes.
There are on average 7 hours of sunshine per day. So, the sun shines 54% of the time.
The average humidity is 61%.
The average wind speed is of
12.8 kph.
The average sea temperature is of
14.1 °C. Therefore, the sea is very cold for swimming.
May is generally a warm month. The average temperature is of
18.6 °C, with a minimum of
13.9 °C and a maximum of
23.3 °C.
On the coldest nights of the month, the temperature usually drops to around
8.5 °C. However, it dropped to
6 °C in May 1991.
On the warmest days of the month, the temperature usually reaches around
28.5 °C. However, it reached
32 °C in May 2015.
Precipitation amounts to
155 mm, distributed over 9 days.
The day lasts on average 14 hours and 0 minutes.
There are on average 7.5 hours of sunshine per day. So, the sun shines 53% of the time.
The average humidity is 66%.
The average wind speed is of
12 kph.
The average sea temperature is of
16.6 °C. Therefore, the sea is cold for swimming.
June is generally a warm month. The average temperature is of
22.4 °C, with a minimum of
18.6 °C and a maximum of
26.1 °C.
On the coldest nights of the month, the temperature usually drops to around
14 °C. However, it dropped to
12 °C in June 1992.
On the warmest days of the month, the temperature usually reaches around
30.5 °C. However, it reached
33 °C in June 2017.
Precipitation amounts to
190 mm, distributed over 10 days.
The day lasts on average 14 hours and 30 minutes. So the days are long. June 21, the summer solstice, is the longest day of the year in the Northern Hemisphere.
There are on average 6 hours of sunshine per day. So, the sun shines 41% of the time.
The average humidity is 72%. Hence, the air is normally humid.
The average wind speed is of
11.9 kph.
The average sea temperature is of
19.7 °C. Therefore, the sea is very cool for swimming.
July is generally a warm to hot, muggy month. The average temperature is of
25.8 °C, with a minimum of
22.8 °C and a maximum of
28.8 °C.
On the coldest nights of the month, the temperature usually drops to around
19 °C. However, it dropped to
15 °C in July 1993.
On the warmest days of the month, the temperature usually reaches around
33.5 °C. However, it reached
38 °C in July 1994.
Precipitation amounts to
325 mm, distributed over 14 days.
The day lasts on average 14 hours and 10 minutes. So the days are long.
There are on average 5.5 hours of sunshine per day. So, the sun shines 39% of the time.
The average humidity is 79%. Hence, the air is normally humid.
The average wind speed is of
12.1 kph.
The average sea temperature is of
23 °C. Therefore, the sea can be considered barely acceptable for swimming.
August, the hottest month of the year, is generally a warm to hot, muggy month. The average temperature is of
27 °C, with a minimum of
23.5 °C and a maximum of
30.4 °C.
On the coldest nights of the month, the temperature usually drops to around
19.5 °C. However, it dropped to
17 °C in August 2001.
On the warmest days of the month, the temperature usually reaches around
34.5 °C. However, it reached
38 °C in August 2017.
Precipitation amounts to
265 mm, distributed over 12 days.
The day lasts on average 13 hours and 25 minutes.
There are on average 6.5 hours of sunshine per day. So, the sun shines 48% of the time.
The average humidity is 75%. Hence, the air is normally humid.
The average wind speed is of
11.9 kph.
The average sea temperature is of
25.8 °C. Therefore, the sea is warm enough for swimming.
September is generally a warm to hot, muggy month. The average temperature is of
22.7 °C, with a minimum of
18.6 °C and a maximum of
26.8 °C.
On the coldest nights of the month, the temperature usually drops to around
13 °C. However, it dropped to
10 °C in September 1995.
On the warmest days of the month, the temperature usually reaches around
31.5 °C. However, it reached
35 °C in September 1994.
Precipitation amounts to
160 mm, distributed over 9 days.
The day lasts on average 12 hours and 25 minutes.
There are on average 6 hours of sunshine per day. So, the sun shines 47% of the time.
The average humidity is 72%. Hence, the air is normally humid.
The average wind speed is of
11.7 kph.
The average sea temperature is of
24.2 °C. Therefore, the sea is warm enough for swimming.
October is generally a very mild month. The average temperature is of
17.1 °C, with a minimum of
11.9 °C and a maximum of
22.3 °C.
On the coldest nights of the month, the temperature usually drops to around
5 °C. However, it dropped to
0 °C in October 1997.
On the warmest days of the month, the temperature usually reaches around
27 °C. However, it reached
29 °C in October 1999.
Precipitation amounts to
80 mm, distributed over 5 days.
The day lasts on average 11 hours and 20 minutes.
There are on average 7 hours of sunshine per day. So, the sun shines 60% of the time.
The average humidity is 65%.
The average wind speed is of
10.6 kph.
The average sea temperature is of
21.6 °C. Therefore, the sea is cool for swimming.
November is generally a mild month. The average temperature is of
10.6 °C, with a minimum of
5.3 °C and a maximum of
15.9 °C.
On the coldest nights of the month, the temperature usually drops to around
-2 °C. However, it dropped to
-7 °C in November 1996.
On the warmest days of the month, the temperature usually reaches around
22 °C. However, it reached
24 °C in November 2003.
Precipitation amounts to
50 mm, distributed over 6 days.
The day lasts on average 10 hours and 20 minutes.
There are on average 6.5 hours of sunshine per day. So, the sun shines 63% of the time.
The average humidity is 61%.
The average wind speed is of
10.1 kph.
The average sea temperature is of
19 °C. Therefore, the sea is very cool for swimming.
December is generally a quite cold month. The average temperature is of
4.3 °C, with a minimum of
-0.9 °C and a maximum of
9.5 °C.
On the coldest nights of the month, the temperature usually drops to around
-6.5 °C. However, it dropped to
-11 °C in December 2005.
On the warmest days of the month, the temperature usually reaches around
16 °C. However, it reached
19 °C in December 1994.
Precipitation amounts to
35 mm, distributed over 5 days.
The day lasts on average 9 hours and 50 minutes. December 21, the winter solstice, is the shortest day of the year in the Northern Hemisphere.
There are on average 6.5 hours of sunshine per day. So, the sun shines 67% of the time.
The average humidity is 55%.
The average wind speed is of
10.6 kph.
The average sea temperature is of
16.6 °C. Therefore, the sea is cold for swimming.