Gwangyang Temperature by Month

Gwangyang in South Korea sees significant seasonal temperature differences, with daytime highs between 7°C (45°F) in January and 30°C (86°F) in August, averaging 19°C (66°F) annually. Explore the full monthly breakdown below.

Depending on the time of the year, temperatures range from warm to cold in Gwangyang. Nighttime lows follow the same pattern, ranging from 24°C (75°F) to -2°C (28°F).

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

The coolest part of the day is typically between 4 AM and 6 AM, while 3 PM is usually the warmest, when solar heating is at its peak. August, the city's warmest month, averages 196 hours of sunshine.

The chart below shows the average temperature throughout the year:

Gwangyang's average annual maximum temperature is 19°C (66°F). To put that in context, here's how it compares to a few well-known destinations:

Rome, Italy averages 20°C (68°F) annually, with reliably warm summers and comfortable winters.

Interlaken, Switzerland averages 8°C (46°F) a year, with cold winters and cool summers thanks to its Alpine setting.

New York City, USA averages 17°C (63°F) a year, with hot humid summers and cold winters that bring regular snowfall.

Brisbane, Australia averages 26°C (79°F) a year, with warm winters and hot, humid summers.

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 Gwangyang, January is the coolest month, with average highs of 7°C (45°F) and humidity around 59%, considered moderate. In August, the warmest month, temperatures average 30°C (86°F) with 82% humidity, conditions that feel very 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.

Seasonal temperature shifts influence more than just how warm it feels, they also drive changes in rainfall, cloud cover, and wind patterns throughout the year.

Warmer air holds more moisture, which tends to mean heavier or more frequent rain during the warmer months. When temperatures drop in winter, any precipitation that does fall is more likely to come as snow or sleet, though in Gwangyang this rarely lasts long on the ground.

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