Monthly climate guide
Busan weather in May
Expect warm weather in Busan in May: afternoons reach about 21°C (70°F), while nights drop to around 13°C (56°F). Around 113 mm of rain falls over the month (wet), and skies are often cloudy. Daytime highs are 5°C warmer than April and 3°C cooler than June.
What stands out in May
- Busan is usually about 3°C cooler than Daegu, 90 km away, in May.
- May brings late spring to Busan.
Avg high
21°C
70°F
Avg low
13°C
56°F
Rainfall
113 mm
wet
Humidity
78%
relative
Sky
59%
cloud · often cloudy
Busan weather by month
Show the monthly averages as a table
| Month | Avg high | Avg low | Rain | Humidity | Cloud cover |
|---|---|---|---|---|---|
| January | 6°C / 42°F | -1°C / 30°F | 31 mm | 76% | 55% |
| February | 8°C / 46°F | 1°C / 33°F | 49 mm | 72% | 63% |
| March | 12°C / 54°F | 4°C / 39°F | 84 mm | 73% | 54% |
| April | 16°C / 61°F | 9°C / 47°F | 141 mm | 75% | 58% |
| May | 21°C / 70°F | 13°C / 56°F | 113 mm | 78% | 59% |
| June | 24°C / 75°F | 18°C / 64°F | 164 mm | 83% | 74% |
| July | 27°C / 80°F | 22°C / 72°F | 254 mm | 88% | 73% |
| August | 29°C / 83°F | 24°C / 75°F | 228 mm | 84% | 66% |
| September | 25°C / 76°F | 19°C / 67°F | 197 mm | 81% | 67% |
| October | 20°C / 68°F | 13°C / 56°F | 100 mm | 76% | 55% |
| November | 15°C / 58°F | 7°C / 45°F | 60 mm | 75% | 55% |
| December | 8°C / 46°F | 1°C / 33°F | 39 mm | 77% | 55% |
What to pack for May
- T-shirts plus a light layer for the evening
- Comfortable trainers or sandals for long walks
- A compact umbrella or packable rain jacket
- Water-resistant shoes
Is May a good time to visit Busan?
Compare the months in the chart above to find your ideal window.
Best time to visit Busan →Other South Korea cities in May
Cite or embed this data
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Busan weather in May. WeatherCompare, 2026 (NASA POWER / ERA5, 2011–2020 monthly averages). https://weathercompare.eu/weather/south-korea/busan/may
<a href="https://weathercompare.eu/weather/south-korea/busan/may">Busan weather in May</a> (WeatherCompare)
<iframe src="https://weathercompare.eu/embed/south-korea/busan" width="300" height="160" style="border:0;border-radius:12px" loading="lazy" title="Busan weather in May"></iframe> <p style="font-size:12px"><a href="https://weathercompare.eu/weather/south-korea/busan/may">Busan weather in May</a> – WeatherCompare</p>
Busan in May: quick answers
Is May a good time to visit Busan?
Yes. May is one of the best months for Busan, with highs around 21°C and about 113 mm of rain.
How warm is Busan in May?
Average highs are about 21°C (70°F) and average lows about 13°C (56°F), based on 10 years of daily data.
Does it rain a lot in Busan in May?
Busan typically gets around 113 mm of rain in May — wet.
Figures are long-term averages for the area around Busan (NASA POWER / ERA5, 2011–2020), not a forecast for a specific year. For upcoming days, see the live multi-source forecast.