Busan weather by month & the best time to visit
South Korea · major coastal city · humid subtropical climate
The best time to visit Busan is October — its sunniest month (Sunshine Score 77/100). Busan averages about 2,112 hours of sunshine a year. Daytime highs around 21°C / 70°F and roughly 75 mm of rain in October.
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- Sun hours / year
- 2,112
- Sunniest month
- October
- Peak score
- 77/100
- Rain / year
- 1,490 mm
- Midday UV at peak
- 6 (high)
- Sea at warmest
- 29°C / 84°F
- Population
- 3.5M
- Elevation
- Sea level
When is the best time to visit Busan?
For sunshine, the best time to visit Busan is October. The dullest month is January (0/100, 30 mm of rain). The full month-by-month picture is in the table below.
How sunny is Busan?
Busan gets a moderate 2,112 hours of sunshine a year. 77 Sunshine Score points separate October (77) from January (0), so the month you pick matters. Busan is the sunniest of the 14 destinations tracked in South Korea. Rain has a clear season: the wettest stretch, around August, carries about 48% of the annual 1,490 mm.
Sunshine Score by month
| Month | Score | Day high | Night low | Rain | UV | Sea |
|---|---|---|---|---|---|---|
| January | 0 | 6° / 43°F | -1° / 30°F | 30 mm | 2 | 10° / 50°F |
| February | 0 | 8° / 46°F | 1° / 34°F | 52 mm | 3 | 11° / 52°F |
| March | 26 | 12° / 54°F | 4° / 39°F | 79 mm | 4 | 11° / 52°F |
| April | 49 | 17° / 63°F | 9° / 48°F | 137 mm | 5 | 16° / 61°F |
| May | 65 | 21° / 70°F | 14° / 57°F | 144 mm | 6 | 19° / 66°F |
| June | 64 | 24° / 75°F | 18° / 64°F | 175 mm | 6 | 23° / 73°F |
| July | 64 | 27° / 81°F | 22° / 72°F | 299 mm | 6 | 24° / 75°F |
| August | 64 | 28° / 82°F | 24° / 75°F | 244 mm | 6 | 29° / 84°F |
| September | 64 | 25° / 77°F | 20° / 68°F | 176 mm | 5 | 29° / 84°F |
| October | 77 | 21° / 70°F | 14° / 57°F | 75 mm | 4 | 22° / 72°F |
| November | 48 | 15° / 59°F | 8° / 46°F | 46 mm | 2 | 17° / 63°F |
| December | 0 | 8° / 46°F | 1° / 34°F | 33 mm | 2 | 11° / 52°F |
Sea temperature in Busan by month
The sea off Busan is warmest in August at around 29°C / 84°F, and coolest in January at 10°C / 50°F. The water sits at a comfortable 21°C or warmer roughly 5 months a year. Month-by-month sea-surface temperatures are in the Sea column of the table above.
Nearby places for sunshine
- Ulsan South Korea · 59 km · best in Oct · 1,954 h sun/yr
- Daegu South Korea · 83 km · best in Oct · 2,111 h sun/yr
- Yeosu South Korea · 126 km · best in Oct · 2,024 h sun/yr
- Gwangju South Korea · 194 km · best in Oct · 1,884 h sun/yr
- Cheongju South Korea · 214 km · best in May · 1,963 h sun/yr
- Gunsan South Korea · 225 km · best in Oct · 1,884 h sun/yr
Nearest destinations
- Sacheon South Korea · 79 km · 2,112 h sun/yr · best in Oct
- Pohang South Korea · 100 km · 1,954 h sun/yr · best in Oct
- Tsushima Japan · 106 km · 1,900 h sun/yr · best in Oct
Head-to-head
How Busan compares month by month: Busan vs Daegu · Busan vs Ulsan · Busan vs Yeosu · all comparisons
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