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.
Ulchin Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Ulchin.
–
Climate overview of Ulchin
The climate in Ulchin, South Korea, is marked by large temperature swings across the seasons, ranging from 28°C (82°F) in August to 6°C (43°F) in January.
The city has a wet climate, receiving around 1192 mm (47 in) of rain/snowfall per year. Despite the high annual total, it has a distinct rainy season from July to September, with warm summers and cold winters. August is the wettest month. Sunshine peaks in May, when the city sees around 7.9 hours of sunshine per day.
Ulchin Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Ulchin - and find the best time to visit.
Monthly Temperature in Ulchin
In Ulchin, temperatures differ significantly between summer and winter months. On average, daytime temperatures range from a comfortable 28°C (82°F) in August to a chilly 6°C (43°F) in January.
Nighttime temperatures range from 23°C (73°F) in August to -1°C (30°F) in January.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Ulchin
Ulchin experiences significant rain/snowfall throughout the year, averaging 1192 mm (47 in) of precipitation annually. The seasons in Ulchin bring significant changes in precipitation. The wettest month, August, receives heavy rainfall, with an average of 198 mm (7.8 in) of precipitation. This rainfall is distributed across 12 rainy days.
In contrast, the driest month, December, experiences much less rainfall, totaling 37 mm (1.5 in) over 5 rainy days. These distinct seasonal differences provide diverse experiences throughout the year. For more details, please visit our Ulchin Precipitation page.
The mean monthly precipitation over the year, including rain, hail, and snow
The average number of days each month with precipitation
Sunshine Hours in Ulchin
Ulchin enjoys sunny spells year-round. May sees up to 7.9 hours of daily sunshine, perfect for a sunny trip. July, the least sunny month, still offers a generous 5.4 hours of sun despite this cloudier time of the year.
Visit our detailed sunshine hours page for more information.
Monthly hours of sunshine
Daily hours of sunshine
Daily percentage of sunshine
Water Temperature in Ulchin
The mean water temperature over the year ranges from 8°C (46°F) in February to 25°C (77°F) in August.
Water temperature over the year
Humidity in Ulchin by Month
The relative humidity is high throughout the year in Ulchin.
The city experiences its highest humidity in July, reaching 82%. In January, the humidity drops to its lowest level at 50%. What does this mean? Read our detailed page on humidity levels for further details.
Relative humidity over the year
Wind Speed in Ulchin
The mean wind speed varies between 2 m/s (4 knots) and 4 m/s (8 knots) throughout the year. It is lowest in July and highest during January, April and December. What does this mean?
The mean monthly wind speed over the year (meters per second)
Best Time to Visit Ulchin
Conditions in Ulchin are generally most comfortable in May and October. They are typically least comfortable in January, February and December.
Monthly ratings reflect general weather comfort, based on daytime temperature and rainfall. Swimming and winter conditions are highlighted separately where relevant.
Jan
cold
Feb
cold
Mar
mixed
Apr
good
May
excellent
Jun
very good
Jul
good
Aug
good
Sep
good
Oct
excellent
Nov
good
Dec
cold
- Best overall: May and October
- Warmest weather: July and August
- Most sunshine: April and May
- Fewest rainy days: January, November and December
- Best for swimming: July, August, September and October.
- Wettest months: June, July, August and September, when rainfall is highest.
- Seasonal pattern: A distinct rainy season from July to September, with warm summers and cold winters
- Coldest conditions: January, with freezing nights around -1°C (30°F).
Frequently asked questions about the climate in Ulchin
What is the best time to visit Ulchin?
May and October typically offer the most optimal weather in Ulchin. In contrast, January, February and December tend to have less optimal conditions. Ulchin has a distinct rainy season from July to September, with warm summers and cold winters.
What temperatures can I expect in Ulchin?
Daytime highs range from 6°C (43°F) in January to 28°C (82°F) in August. Nighttime lows range from -1°C (30°F) to 23°C (73°F). Temperatures vary considerably through the year.
How much rain does Ulchin get?
Annual rainfall is around 1192 mm (47 in). August is the wettest month with 198 mm (7.8 in), while December is the driest with 37 mm (1.5 in).
How sunny is Ulchin?
Ulchin receives around 2,385 hours of sunshine per year. May is the sunniest month with 237 hours, while July is the cloudiest with just 162 hours. Overall, Ulchin enjoys abundant sunshine.
Ulchin 3-Day Forecast
Ulchin on the map
Ulchin is highlighted - select any city to see its climate.
Popular in September
Where to go in September - average daytime high across popular destinations.
Bucket list
Need travel inspiration? Check out our bucket list articles and be inspired.
Mud festival in South Korea
10 Hidden gems in Asia you need to visit
Explore 10 hidden gems in Asia offering authentic experiences, from pristine beaches and remote islands to cultural treks and peaceful mountain villages.
Chase the autumn leaves in Japan
Japan is one of these cases which turns into a gold, yellow and orange fairy tale starting from September. And we can honestly say: We cannot imagine a more beautiful season to visit Japan.
The 10 Most Exquisite Beaches in the Philippines
Explore the top 10 breathtaking beaches in the Philippines, from serene Nacpan Beach to volcanic Camiguin Island, in our detailed guide.