Busan Weather in May
In Busan, May brings pleasant daytime temperatures around 22°C (72°F), with nights cooling to 15°C (59°F). Expect quite a bit of rainfall this month.
Rainfall in Busan in May
Historically, the month has about 9 days of rain, averaging 123 mm (4.8 in) in total. When showers do arrive, they tend to be on the heavier side. Worth being prepared even if rain days are not that numerous.
Temperature in Busan in May
May in Busan sees highs of 22°C (72°F) and lows of 15°C (59°F) overnight. A light jacket or extra layer can be useful, especially outside the warmest hours of the day. With lows of 15°C (59°F), nights are cool. If you're out after dark, an extra layer will keep you comfortable. The cooler air at night is also great for getting a good rest.
Sunshine in Busan in May
With approximately 227 hours of sunshine, the days are filled with clear skies. It makes it a perfect month for being outside.If your ideal day consists of dry skies and pleasant temperatures, October typically offers the best circumstances for Busan.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit South Korea, check out our Busan's climate page.
Busan Temperature in May
Min Temperature
15°C (59°F)
Max Temperature
22°C (72°F)
Chance of Rain
31%
Precipitation
123 mm (4.8 in)
Rainy days
9 days
Humidity
69%
Sunshine
227 hours
Percentage Sunshine
51%
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Busan typically rise from around 21°C (70°F) at the start of May to approximately 25°C (77°F) by the end. Nights are cool, with lows typically ranging from 12°C (54°F) to 16°C (61°F).
Average temperatures in May
Daily Historical Precipitation
50-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in May
Historical weather for Busan in May
Browse day-by-day weather records for Busan spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Busan historical weather extremes in May
Our historical data for Busan spans 1976 to 2025, revealing these weather extremes.
- The hottest May day on record in Busan reached 35°C (95°F) (May 29, 1979).
- Busan experienced its chilliest May day on May 2, 1990, reaching only 13°C (55°F).
- The lowest overnight temperature recorded in May was 6°C (43°F) (May 9, 2024).
Best Places in South Korea in May
Find out more about the weather in South Korea and which places have the best travel conditions in this month. See all of South Korea in May →
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What to Wear in Busan in May
Comfortable temperatures call for an easy wardrobe in May. Pack summer basics like t-shirts and shorts, but include a light jacket for cooler moments. A pair of comfortable walking shoes is essential. Expect heavy rainfall, so bring good rain protection and waterproof bags. Don't forget sun protection, sunglasses, sunscreen, and a hat. These are all good ideas with this much sunshine.What To Do in Busan in May
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit South Korea, check out our Busan's climate page.
Temperature Rainfall Sunshine Humidity
See the full Busan climate overview or explore weather in South Korea.
