Weather in Busan in May 2025
Average weather
Average temperature in Busan in May
Going from a maximum of +21°C during the day to a minimum of +11°C during the night, the temperature in May averages around +19°C.
The average maximum temperature goes up 20% by the end of the month, compared with the beginning of the month, from +19°C to +21°C.
Is Busan warm or cold in May?
Busan is typically mild in May.
Maximum temperatures go up compared to the previous month from +16°C to +20°C. The minimum temperature also goes up from +11°C to +15°C.
Pack a light jacket as it will be warm in the day and cool in the evenings.
Take a look at how May is compared to other months in Busan:
Climate in Busan in May
| April | May | June | ||||
|---|---|---|---|---|---|---|
| Avg. temperature | ||||||
| +16°C | +20°C | +22°C | ||||
| Min. temperature | ||||||
| +2°C | +7°C | +13°C | ||||
| Max. temperature | ||||||
| +26°C | +31°C | +33°C | ||||
| Rainfall | ||||||
| 110 mm | 114 mm | 175 mm | ||||
| Wind | ||||||
| 3 m/s | 2 m/s | 2 m/s | ||||
| Humidity | ||||||
| 64% | 70% | 78% | ||||
| Air pressure | ||||||
| 1014 HPa | 1011 HPa | 1007 HPa | ||||
| Sunny days | ||||||
| 8 | 8 | 4 | ||||
| Cloudy days | ||||||
| 10 | 12 | 12 | ||||
| Rainy days | ||||||
| 11 | 11 | 13 | ||||
| Snowy days | ||||||
| 0 | 0 | 0 | ||||
May weather is still as good as in April. It’s getting warmer as May arrives. The average maximum temperature goes up from +16°C to +20°C during the day. Prepare for more rain. Average rainfall goes from 110 mm to 114 mm. Humidity rises from 64% to 70%. Winds are calmer in comparison to April, going down from 3 m/s to 2 m/s on average. The amount of sunny days stay about the same, averaging 8 sunny days during the month.
Next month (June) brings a further decline in the weather.
Wind
The average wind speed is 3 m/s getting up to 6 m/s which is a medium breeze. You can feel it, especially getting out of the water.
The average wind speed in Busan is gradually increasing during May, going from 3 m/s to 3 m/s over the course of the month.
Rain
How was the weather last May in Busan?
Climate Change over Years
The climate in Busan in May has not changed much over the last 43 years.
The average temperature was the lowest in 1980 (+16°C) and the highest in 2019 (+20°C). The driest year was 2008 with only 733 mm of rainfall, and the wettest year was 1999 with 2001 mm.
FAQ
Is May a good time to visit Busan?
Can you sunbathe in Busan in May?
Is Busan rainy in May?
Is it sunny in Busan in May?
Other cities in South Korea
Monthly weather in Busan
Source of the data
For this page, we’ve looked at the typical weather in Busan, based on historical hourly weather data from January 1, 1979, to December 31, 2023.
For past dates, we show actual recorded data at the location at that time. Forecasts are based on recorded weather during that day of the year, averaged over the total years for which we have records (unless stated otherwise). The daily temperature is the highest recorded temperature in the shadow during that day.