Osan Weather in May
With daytime temperatures of 25°C (77°F) and nighttime lows of 12°C (54°F), May in Osan brings high temperatures during the day. Do keep in mind that quite a bit of rainfall is typical. Around 91 mm (3.6 in) falls on average.
Rainfall in Osan in May
This month experiences about 8 days of rain according to historical data, averaging 91 mm (3.6 in). Individual showers can be quite heavy this month. A proper umbrella or rain jacket is worth having.
Temperature in Osan in May
May tends to be one of the perfect months in Osan, with 25°C (77°F) in the afternoon and 12°C (54°F) overnight. The days can feel warmer than the evenings, so packing for both parts of the day is a good idea. With overnight lows of 12°C (54°F), evenings can feel noticeably cooler than the daytime. An extra layer is a good idea, though the cool air makes for a good night's sleep.
Sunshine in Osan in May
Expect a lot of sunshine this month, with about 248 hours of sun. These sunny conditions add to the overall experience.If you favor pleasant temperatures and minimal rainfall, May is one of the best months to visit Osan.
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 Osan's climate page.
Osan Temperature in May
Min Temperature
12°C (54°F)
Max Temperature
25°C (77°F)
Chance of Rain
26%
Precipitation
91 mm (3.6 in)
Rainy days
8 days
Humidity
65% *
Sunshine
248 hours *
Percentage Sunshine
56% *
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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unpleasant
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What to Wear in Osan in May
For Osan in May, you'll want flexible clothing. It's wise to pack cotton shirts, comfortable shorts, and a pair of jeans for cooler evenings. A light sweater or jacket is useful for air-conditioned spaces (like buses) or unexpected cool moments. High rain levels are expected, so pack waterproof gear and an umbrella or poncho. And with plenty of sunshine hours, don’t forget sunglasses, sunscreen, and maybe a sun hat.What To Do in Osan 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 Osan's climate page.
Temperature Rainfall Sunshine Humidity
See the full Osan climate overview or explore weather in South Korea.
