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.