Gyeongju Temperature by Month

The average annual maximum temperature in Gyeongju, Gyeongsangbuk-Do, South Korea is 20°C (68°F), with daytime highs ranging from 7°C (45°F) in January to 31°C (88°F) in August. This page covers monthly averages, day-night differences, and how Gyeongju compares to cities worldwide.

Visitors to Gyeongju will encounter a climate influenced by big temperature differences across the year. Nighttime temperatures range from 23°C (73°F) in August to -3°C (27°F) in January.

The chart below illustrates the average maximum day and minimum night temperatures in Gyeongju by month:

The minimum temperature is often recorded between 4 AM and 6 AM, while the highest temperature is usually reached at 3 PM, when the sun's heating effect is strongest. August, the warmest month, gets 179 hours of sunshine.

The chart below shows the average temperature throughout the year:

Gyeongju's average annual maximum temperature is 20°C (68°F). To put that in context, here's how it compares to a few well-known destinations:

Athens, Greece sits at 23°C (73°F) on average, with hot dry summers and mild winters characteristic of the Mediterranean.

Reykjavík, Iceland averages 9°C (48°F) a year, mild summers by Icelandic standards, but cold winters and frequent wind.

Shanghai, China averages 21°C (70°F) a year, with warm summers, mild winters, and a noticeable spring and autumn.

Tokyo, Japan averages 21°C (70°F) a year, with hot summers, cool winters, and a well-defined cherry blossom spring.

Temperature alone doesn't tell the whole story, humidity plays a big role in how warm or cold it actually feels. High humidity in summer makes the heat feel more intense, particularly once temperatures climb above 25°C. In winter, the same humidity can make cold air feel sharper than the thermometer suggests.

In the cooler months, when temperatures drop below 10°C, high humidity makes the cold feel more cutting than it would in dry conditions.

In Gyeongju, January is the coolest month, with average highs of 7°C (45°F) and humidity around 53%, considered moderate. In August, the warmest month, temperatures average 31°C (88°F) with 79% humidity, conditions that feel high. For a full picture, see our humidity page.

Climate temperature data is typically calculated as a 30-year average. This smooths out year-to-year variability and gives a more reliable picture of what a place is actually like, rather than what happened in any single unusual year.

The readings come from a range of sources, land-based weather stations, ocean buoys, ships, and satellites. That data is collected by weather services around the world, then pooled, quality-checked, and averaged to produce the climate records you see here.

For cities and regions with significant elevation, altitude is one of the biggest factors shaping local temperatures. As a rule of thumb, temperatures fall by around 6°C for every 1,000 metres gained, so a city at 2,000 metres will typically be around 12°C cooler than a city at sea level in the same region. Higher ground also tends to see more dramatic day-to-night temperature swings, since thinner air loses heat faster after sunset.

For more on Gyeongju's weather, including monthly rainfall, sunshine hours, and humidity, visit our Gyeongju climate page.