Winter
Dec → Feb7 to 9°
nights -2 to 0°
- 5 rainy days · 43 mm
- sea 13°
When is the best time to visit Busan?
- Jan7°not recommended
- Feb9°not recommended
- Mar13°fair
- Apr17°recommended
- May21°recommended
- Jun24°recommended
- Jul27°fair
- Aug29°fair
- Sep25°recommended
- Oct21°recommended
- Nov15°fair
- Dec8°not recommended
RecommendedFairNot recommended· afternoon temperature
The weather in Busan, month by month
The table of records, month by month
| Month | High | Low | Rainfall | Rainy days | Sea | Best |
|---|---|---|---|---|---|---|
| January | 7° | -2° | 41 mm | 4 d | 13° | |
| February | 9° | 0° | 53 mm | 6 d | 12° | |
| March | 13° | 5° | 93 mm | 8 d | 13° | |
| April | 17° | 9° | 126 mm | 8 d | 15° | ✓ |
| May | 21° | 14° | 116 mm | 8 d | 17° | ✓ |
| June | 24° | 18° | 197 mm | 10 d | 21° | ✓ |
| July | 27° | 23° | 269 mm | 15 d | 22° | |
| August | 29° | 24° | 203 mm | 14 d | 28° | |
| September | 25° | 20° | 258 mm | 13 d | 27° | ✓ |
| October | 21° | 13° | 93 mm | 6 d | 23° | ✓ |
| November | 15° | 7° | 54 mm | 5 d | 18° | |
| December | 8° | 0° | 35 mm | 4 d | 15° |
The four seasons in Busan, in figures
What the 2015-2024 records (Jagalchi) show, season by season, to compare at a glance instead of reading twelve rows of a table.
Spring
Mar → May13 to 21°
nights 5 to 14°
- 8 rainy days · 112 mm
- sea 15°
Summer
Jun → Aug24 to 29°
nights 18 to 24°
- 13 rainy days · 223 mm
- sea 24°
Autumn
Sep → Nov15 to 25°
nights 7 to 20°
- 8 rainy days · 135 mm
- sea 23°
Book early for April to June and September to October
The timing is right, so it is right for everyone: in these months the best places to stay and the small-group tours go first. Here is where to start.
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Daylight in Busan, month by month
The time between sunrise and sunset, from shortest to longest. Not to be confused with the sunshine hours in the table above, which count clear skies. In June there are 14h30 of daylight, in December 9h48, a difference of 4h42.
10h02Jan
10h52Feb
11h52Mar
13h02Apr
14hMay
14h30Jun
14h18Jul
13h28Aug
12h21Sep
11h14Oct
10h16Nov
9h48Dec
Calculated for the latitude of the reference point "Jagalchi" (35.10°). Values on the 15th of each month, local solar time.
What to do in Busan, month by month
| Activity | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Beach & swimming | ||||||||||||
| Sightseeing & walks | ||||||||||||
| Diving & snorkelling | ||||||||||||
| Long days | ||||||||||||
| Events | 1 | 3 | 1 |
EventsHaeundae Sand FestivalMayBusan International Film FestivalOctoberJagalchi FestivalOctoberBusan Fireworks FestivalOctober to NovemberDetails ↓
favourablewith compromisesunfavourable
- Beach & swimming: July, August, September
- Sightseeing & walks: February, March, April, May, June, October, November, December
- Diving & snorkelling: August, September
- Long days: June, July
Grid derived from the records (temperature, rainfall, sea), not from an opinion.
What's on in Busan, month by month?
What comes back every year, and when. These events fill the hotels and push prices up: something to aim for or to avoid, depending on what you want.
- MayHaeundae Sand Festival
In late May, giant sculptures are built on the sand at Haeundae, with concerts and workshops for a few days.
- OctoberBusan International Film Festival big crowds
In early October, screenings and talks are spread between the Busan Cinema Center in Centum City and the cinemas of Nampo-dong.
- OctoberJagalchi Festival
In October, the harbour fish market opens its aisles to tastings and to bare-handed fishing in large tanks.
- October to NovemberBusan Fireworks Festival big crowds
In autumn, a dense display is launched from Gwangan Bridge, and the whole bay settles on the beach to watch.
Travelling off-peak
Month by month, in detail
January
Not recommended7°-2° at night
- 41 mm · 4 d
- sea 13°
Low season, lower prices
February
Not recommended9°0° at night
- 53 mm · 6 d
- sea 12°
Low season, lower prices
March
Fair13°5° at night
- 93 mm · 8 d
- sea 13°
Low season, lower prices
April
Recommended17°9° at night
- 126 mm · 8 d
- sea 15°
Busy, without the crush
May
Recommended21°14° at night
- 116 mm · 8 d
- sea 17°
Busy, without the crush
June
Recommended24°18° at night
- 197 mm · 10 d
- sea 21°
Busy, without the crush
July
Fair27°23° at night
- 269 mm · 15 d
- sea 22°
Busy, without the crush
August
Fair29°24° at night
- 203 mm · 14 d
- sea 28°
Busy, without the crush
September
Recommended25°20° at night
- 258 mm · 13 d
- sea 27°
Busy, without the crush
October
Recommended21°13° at night
- 93 mm · 6 d
- sea 23°
High season, book early
November
Fair15°7° at night
- 54 mm · 5 d
- sea 18°
Busy, without the crush
December
Not recommended8°0° at night
- 35 mm · 4 d
- sea 15°
Quiet, then the holidays
Read the twelve months in detail
January. Deep winter: 7 °C at the warmest of the day, -2 °C at night. Rain stays light: 41 mm over 4 days. Sea at 13 °C, too cold to swim. Low season: fewer people, lower prices.
February. Cool: 9 °C at best, 0 °C at night. Rain stays light: 53 mm over 6 days. Sea at 12 °C, too cold to swim. Low season: fewer people, lower prices.
March. Cool: 13 °C at best, 5 °C at night. Expect 8 days of rain in the month (93 mm). Sea at 13 °C, too cold to swim. Low season: fewer people, lower prices.
April. Cool: 17 °C at best, 9 °C at night. Expect 8 days of rain in the month (126 mm). Sea at 15 °C, too cold to swim. Busy season, without the crush.
May. Mild, 21 °C in the afternoon and 14 °C early in the morning. Expect 8 days of rain in the month (116 mm). Sea at 17 °C, too cold to swim. Busy season, without the crush.
June. Mild, 24 °C in the afternoon and 18 °C early in the morning. Expect 10 days of rain in the month (197 mm). Cool sea (21 °C), for the brave. Busy season, without the crush.
July. 27 °C in the afternoon and 23 °C at night. Frequent rain: 269 mm over 15 days. The sea is at 22 °C: pleasant swimming. Busy season, without the crush.
August. 29 °C in the afternoon and 24 °C at night. Frequent rain: 203 mm over 14 days. The sea is at 28 °C, a proper swim. Busy season, without the crush.
September. 25 °C in the afternoon and 20 °C at night. Expect 13 days of rain in the month (258 mm). The sea is at 27 °C, a proper swim. Busy season, without the crush.
October. Mild, 21 °C in the afternoon and 13 °C early in the morning. Rain stays light: 93 mm over 6 days. The sea is at 23 °C: pleasant swimming. High season: book early.
November. Cool: 15 °C at best, 7 °C at night. Rain stays light: 54 mm over 5 days. Cool sea (18 °C), for the brave. Busy season, without the crush.
December. Cool: 8 °C at best, 0 °C at night. Rain stays light: 35 mm over 4 days. Sea at 15 °C, too cold to swim. Quiet at the start of the month, then busier as the holidays approach.
Same season, other ideas
Their best time overlaps with this one: worth comparing before you book.
Frequently asked questions
When is the best time to visit Busan?
April to June and September to October: over these months, recorded highs range from 17 to 25 °C, with 9 days of rain a month on average (2015-2024 records, Jagalchi).
Which month should you avoid in Busan?
February: it is the wettest of the months to avoid, with 53 mm over 6 days of rain on average, according to 2015-2024 records at the reference point (Jagalchi).
What is the hottest month in Busan?
August, with 29 °C on average in the afternoon and 24 °C at night. 2015-2024 records (Jagalchi).
What is the coldest month in Busan?
January, with 7 °C at best during the day and -2 °C at night. 2015-2024 records (Jagalchi).
What is the driest month in Busan?
December: 35 mm over 4 days of rain, against 269 mm in July, the wettest month.
When can you swim in Busan?
The water reaches 22 °C or more in July, August, September, October (warmest 28 °C in August), measured in 2023-2024 on the nearest coast (Jagalchi).
When to go diving or snorkelling in Busan?
August, September: the sea is above 25 °C, warm enough to stay in a long time without a thick wetsuit. 2023-2024 records on the nearest coast (Jagalchi).
Plan this trip
📒 The free printable Busan guide: itinerary, map, where to sleep→
🧭 When to visit South Korea: the country overview→
🗓️ Best time to visit: all our destinations→
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