Cheonan Weather in September

In Cheonan, September brings high daytime temperatures around 27°C (81°F), with nights cooling to 17°C (63°F). Expect quite a bit of rainfall this month.

Rainfall in Cheonan in September

You can expect rain on roughly 8 days based on historical data, averaging 144 mm (5.7 in) for the month. Individual showers can be quite heavy this month. A proper umbrella or rain jacket is worth having.

Temperature in Cheonan in September

In September, Cheonan sees high temperatures, with highs of 27°C (81°F). Nights drop to around 17°C (63°F). The days can feel warmer than the evenings, so packing for both parts of the day is a good idea. Nights drop to around 17°C (63°F), which is noticeably cooler than the daytime. A light jacket for the evening is a sensible addition, and the cool nights tend to make sleeping comfortable.

Sunshine in Cheonan in September

Expect a lot of sunshine this month, with about 197 hours of sun. These sunny conditions add to the overall experience.

If you prefer enjoying temperate temperatures and rain-free days, April, May and October typically offer the best circumstances. If you're seeking pleasant, dry and sunny weather somewhere else in the world, our weather planner can help you explore other options.