South KoreaAverage weather for Incheon in May
It's warm in May in Incheon with an average temperature of 23°C. Temperatures this month range from a low of 20°C to a high of 26°C. At night, you can expect temperatures between 11°C and 16°C.
Start of May
The month of May starts in Incheon with warm temps, averaging around 22°C during the day and nights around 12°C. A few showers might pop up early in the month, but overall, it’ll stay mostly sunny and dry.
Mid May
By mid-May, daytime temps rise to around 24°C, with nights around 14°C. During this part of the month, you might see regular precipitation, but there will also be some sunny days.
End of May
By the end of May, the average daytime temperature in Incheon is around 26°C, while nighttime temps are about 16°C. Expect regular precipitation, but if you’re lucky, you’ll also get some dry and sunny days.
Because temperatures drop in the evening, wearing layers is recommended.
In May, there is an average of 121 mm of precipitation, spread over 9 days. The wind speed is around 4 Bft, mostly coming from the Southwest.
Incheon in May |
New York | ||
|---|---|---|---|
 Average temperature |
23°C | 22°C | |
 Max. temperature |
26°C | 28°C | |
| Min. temperature |
20°C | -5°C | |
 Total precipitation |
121 mm | 105 mm | |
| Rainy days |
9 days | 14 days | |
April
UV index
The UV index is a maximum of 9 this month. That's a very high value on the intensity scale of 1 to 11. Unprotected skin can burn within 10-15 minutes.
Is May a good time to visit Incheon?
Looking for sun? May isn’t a good month to be in Incheon. The temperature is nice, but there’s too much chance of rain.
Temperature records
With 33°C in 2014, Incheon reached the highest temperature in May over the past 10 years. The lowest daytime temperature in this month was 14°C in 2021. The extreme nighttime temperatures ranged from a lowest recorded value of 6°C to a highest value of 21°C.
Check out the climate of Incheon for all months and discover the best travel time
Curious about the weather in other parts of South Korea? Check out the climate and weather for spots like Seoul, Busan, or explore other destinations in South Korea.
Daily Temperature in May in Incheon
This chart shows the average daily high and low temperatures in May for Incheon, in degrees Celsius. The red line represents the highs, and the blue line shows the lows. The days of the month are displayed at the bottom of the chart. The data, based on historical observations, provide the average temperatures for this month.
Daily Precipitation in May in Incheon
The chart below shows the average daily precipitation in May for Incheon, measured in millimeters over the past few years. Precipitation is always measured as water, even if it’s snow or hail. The days of the month are listed at the bottom of the chart.
A low average precipitation means that the chance of rain on that day is usually small, while a higher average suggests that it rained more often. But remember, it’s just an average, and every day can be different. Based on historical weather data for May, you can expect about 9 days of precipitation in Incheon.
Daily UV index in May in Incheon
This chart shows the average daily UV index in May in Incheon, with the UV index ranging from 0 to a maximum of 11. The bottom of the chart shows the days of the month. Based on historical data, this chart provides an idea of the daily UV radiation levels you can expect.
Temperature in May in Incheon over the years
This chart shows the average temperature in May in Incheon, measured in degrees Celsius, over the past few years.
Total precipitation in May in Incheon over the years
This chart shows the average precipitation in May in Incheon, measured in millimeters over the past years. Precipitation is always measured as water, whether it’s snow or hail.
Daily weather in May for Incheon
Click on any day in May to get detailed info about the usual weather on that day in Incheon. Check out the historical temperatures and precipitation over the past 10 years on this day.
Weather experiences in May in Incheon
Have you been to Incheon in May?
Share your weather experience in May in Incheon.
Average weather in Incheon by month
Click on a month below to see detailed weather info for Incheon. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.
