Best Time to Visit Ansan, Gyeonggi, South Korea
Month-by-month climate guide for planning a trip to Ansan.
Ansan does not have a month that clearly fits our sunny profiles. Its practical travel window centres on its warmest (August, 25°C / 77°F) and driest (December, 24 mm / 0.9 in) months. The drier stretch runs through October–April; the wetter half falls in May–September. At the city itself, monthly average temperatures range from -3.5°C / 25.7°F in January to 25°C / 77°F in August, with rainfall from 24 mm / 0.9 in (December) to 310 mm / 12.2 in (July). These are point-value climate normals sampled at Ansan, Gyeonggi, Korea, Republic of's coordinates — usually more actionable for travellers than the country-wide average. Ansan's climate is broadly strongly continental. The full month-by-month table below lets you match your travel window against our five weather profiles.
Recommended months
| Month | Temp | Rain | Feels like |
|---|---|---|---|
| October | 13.4°C56.1°F | 55 mm2.2″ | — |
| May | 16.7°C62.1°F | 93 mm3.7″ | — |
| November | 5.9°C42.6°F | 53 mm2.1″ | — |
No month at Ansan matches our sunny profiles. The three above are the driest-and-warmest fallback.
Frequently asked questions
When is the best time to visit Ansan?
Ansan doesn't have a month that clearly matches our sunny profiles. The practical travel window centres on December (driest, ~24 mm / 0.9 in) and August (warmest, 25°C / 77°F). Because these are point values at the city, they can differ substantially from Korea, Republic of's national average.
When is the rainy season in Ansan?
The rainy season at Ansan, Gyeonggi runs through May–September, when monthly rainfall exceeds the annual median of about 85 mm / 3.3 in. The wettest single month is July (310 mm / 12.2 in).
What is the driest month in Ansan?
The driest month in Ansan is December, averaging about 24 mm / 0.9 in of rainfall. Temperature that month averages -0.7°C / 30.7°F.
What months should I avoid visiting Ansan?
The least comfortable months for travel to Ansan — based on point-value climate at the city — are January, February, March, July, August, September, December. These are the wettest or coolest months at this location. Rainfall peaks at 310 mm / 12.2 in in July, and the coldest month averages -3.5°C / 25.7°F.
Is Ansan climate different from Korea, Republic of overall?
Yes, usually. Our Ansan figures are point-value climate normals sampled at the city itself, while our Korea, Republic of figures are area-weighted averages across the whole country. The two can diverge substantially in geographically diverse or elevation-varied countries. The month-by-month table below reflects Ansan specifically — usually the more actionable data for a traveller planning to spend time in the city.