Osan Weather in April

In Osan, April brings pleasant daytime temperatures around 19°C (66°F), with nights cooling to 6°C (43°F). Expect quite a bit of rainfall this month.

Rainfall in Osan in April

This month experiences about 8 days of rain according to historical data, averaging 76 mm (3 in). The rain this month tends to fall in heavier spells rather than light drizzle. When it rains, showers can be significant.

Temperature in Osan in April

Osan in April gets highs of 19°C (66°F) during the day and drops to 6°C (43°F) at night. Even when the weather is stable, mornings and evenings can still feel distinctly cool. Nights drop to 6°C (43°F). Cold nights like these are actually great for sleeping well, as long as you have a warm enough duvet.

Sunshine in Osan in April

Expect a lot of sunshine this month, with about 235 hours of sun. These sunny conditions add to the overall experience.

Should you favor a climate that's both dry and comfortably warm, May and October typically offer the most agreeable circumstances. If you're seeking pleasant, dry and sunny weather somewhere else in the world, our weather planner can help you explore other options.

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• January
• February
• March
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• May
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• August

• September
• October
• November
• December

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 April

Min Temperature 6°C (43°F)  

Max Temperature 19°C (66°F)  

Chance of Rain 28%  

Precipitation 76 mm (3 in)  

Rainy days 8 days  

Humidity 62% *  

Sunshine 235 hours *  

Percentage Sunshine 59% *  

* Data from: Cheonan, South Korea (38 KM, 23 Miles).

What to Wear in Osan in April

For Osan in April, 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. Rain is likely on several days, so bring a good rain jacket. And with plenty of sunshine hours, don’t forget sunglasses, sunscreen, and maybe a sun hat.

What To Do in Osan in April

We rated the following activities from 1 (least suitable) to 10 (best) to do.

Cycling

9/10

Walking

9/10

Camping

4/10

Outdoor sports

9/10

Select a Month

Check the conditions for any month of the year.

• January
• February
• March
• April

• May
• June
• July
• August

• September
• October
• November
• December

For a detailed overview over the year and the best time to visit South Korea, check out our Osan's climate page.

More climate data for Osan

Temperature Rainfall Sunshine Humidity

See the full Osan climate overview or explore weather in South Korea.