Mud festival in South Korea
In July, the peaceful seaside town of Boryeong turned into a chaos of mud for 9 days. We recommend putting this festival on your bucket list.
The average annual maximum temperature in Namhae, Gyeongsangnam-do, South Korea is 18°C (64°F), with daytime highs ranging from 7°C (45°F) in January to 29°C (84°F) in August. This page covers monthly averages, day-night differences, and how Namhae compares to cities worldwide.
Visitors to Namhae can expect significant temperature changes throughout the year. Nighttime temperatures also vary widely, ranging from 25°C (77°F) in August to 0°C (32°F) in January.
The chart below illustrates the average maximum day and minimum night temperatures in Namhae 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:
Average high and low temperatures for each day of the month based on long-term records. 50-year average (1976-2025)
Browse day-by-day temperature records for Namhae spanning 51 years. Select any month and year to see actual high and low temperatures recorded on each day.
The map below shows the annual temperature across South Korea. You can also select individual months if you want to compare a specific time of year.
Namhae's average annual maximum temperature is 18°C (64°F). To put that in context, here's how it compares to a few well-known destinations:
Lisbon, Portugal averages 21°C (70°F) annually, warm summers, mild winters, and rain mainly in the cooler months.
Zermatt, Switzerland averages just 4°C (39°F) annually due to its altitude, with very cold winters and cool summers even at its warmest.
Chicago, USA averages 15°C (59°F) annually, known for extreme seasonal swings, from bitterly cold winters to warm summers.
Adelaide, Australia averages 21°C (70°F) a year, with warm summers, mild winters, and relatively low rainfall year-round.
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 Namhae, 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 29°C (84°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.
Global average temperatures have risen by around 1.2°C since the pre-industrial era, and the effects are visible across many regions. Winters are milder on average, with fewer frost days and less snow in many parts of the world. Heatwaves are more frequent and more intense, and Europe's summers of 2018, 2019, and 2020 all set records.
Summers are also getting drier in some areas, while winter rainfall has increased in others. This contributies to higher river levels and more flooding. In many countries, spring arrives earlier and autumn lasts longer. It has knock-on effects for wildlife, agriculture, and local ecosystems.
For more on Namhae's weather, including monthly rainfall, sunshine hours, and humidity, visit our Namhae climate page.
Pick a month to see the average temperature, rainfall and sunshine in Namhae - and find the best time to visit.
Temperature Rainfall Sunshine Humidity
See the full Namhae climate overview or explore weather in South Korea.
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