Climate Insights for Wonji

The climate in Wonji is warm and mild. The average annual temperature is 21°C and approximately 667mm of precipitation falls per year. May is the wettest month, receiving around 171mm of rainfall. Wonji sits near the equator, so seasonal temperature differences are minimal throughout the year.

Temperatures in Wonji vary considerably across the year, with a 21°C difference between the coldest and warmest months. The warmest month is March, when average highs reach 32°C and the mean temperature sits around 25°C. December is the coolest month, with minimum temperatures around 11°C and an average of 19°C. On average, daily temperatures fluctuate by about 12°C between overnight lows and afternoon highs. The sharpest temperature change occurs between February and March, with a 3°C shift in average temperatures.

Wonji is a relatively dry area, receiving approximately 667mm of precipitation annually, which averages out to around 56mm per month. The wettest month is May, averaging 171mm of rainfall. April and September also tend to see above-average precipitation. The driest month is December, with just 1mm. That's 170mm less than May, the wettest month. Rainfall is heavily concentrated in certain months, creating a distinct wet and dry season. Visitors should plan around these patterns, as the difference between peak and low months is dramatic.

Wonji is relatively calm, with an average annual wind speed of 3km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is December, averaging 4km/h, though still comfortable for most outdoor activities. The calmest conditions occur in April, with average winds dropping to 2km/h, making it an ideal period for wind-sensitive activities. Wind speeds vary significantly across the year, with a 2km/h difference between the calmest and windiest months. This level of variation is worth factoring into travel plans.

It is currently summer in Wonji, which began on June 21, 2026. Wonji sits near the equator, so the traditional four-season cycle is less pronounced — temperatures remain relatively stable year-round. The warmest period peaks in March at around 32°C, while the coldest stretch bottoms out in December near 11°C. Autumn is next, beginning on September 23, 2026 — 53 days from now.

The best time to visit Wonji is during January, February, March, June, July, August, September, October, November and December, when the weather is most comfortable for travellers. During these months, average temperatures hover around 21°C with modest rainfall averaging 33mm per month. A light rain jacket is recommended, though showers are generally brief and shouldn't disrupt your plans.

The table below shows monthly climate averages for Wonji based on historical weather data. Min and max temperatures represent typical overnight lows and afternoon highs for each month, shown in degrees Celsius (°C). Precipitation is measured in millimetres (mm) and indicates the average total rainfall per month. Wind speed is the average sustained speed in kilometres per hour (km/h). All values are based on averages from over 10 years of historical weather data. The current month is highlighted for quick reference.