May weather forecast and climate
Incheon, South Korea

The last month of the spring, May, is a pleasant month in Incheon, South Korea, with average temperature varying between 12.8°C (55°F) and 21.3°C (70.3°F).

Temperature

In Incheon, South Korea, the average high-temperature is 21.3°C (70.3°F), and the average low-temperature is 12.8°C (55°F).

Humidity

The average relative humidity in May is 70.3%.

Rainfall

In Incheon, South Korea, it is raining for 8.7 days, with typically 100.3mm (3.9") of accumulated precipitation. In Incheon, South Korea, during the entire year, the rain falls for 101.9 days and collects up to 1234.5mm (48.6") of precipitation.

Sea temperature

In May, the average sea temperature in Incheon, South Korea, is 13.3°C (55.9°F). Swimming in 13.3°C (55.9°F) is considered life-threatening. Even a few minutes in 13°C (55.4°F) water is uncomfortable, and swimming below 10°C (50°F) may cause total loss of breathing control and cold shock, depending on a person's physique.

Daylight

The average length of the day in May is 14.2h.

Sunshine

With an average of 7.5h of sunshine, May has the most sunshine of the year in Incheon.

What is the temperature in May in Incheon?

The average high-temperature, in May, in Incheon, is 21.3°C (70.3°F), while the average low-temperature is 12.8°C (55°F).

What is the average humidity in May in Incheon?

In Incheon, the average relative humidity in May is 70.3%.

How much does it rain in Incheon in May?

In May, in Incheon, South Korea, the rain falls for 8.7 days. Throughout May, 100.3mm (3.9") of precipitation is accumulated.

What is the sea water temperature in May in Incheon?

In Incheon, South Korea, in May, the average water temperature is 13.3°C (55.9°F). At temperatures below 10°C (50°F), swimming in a suitably protected swimsuit is feasible; otherwise, cold shock and loss of breathing control are imminent. Even a short swim, without thermal protection, at temperatures around 13°C (55.4°F) is not comfortable.

How many hours of daylight does Incheon have in May?

In May, the average length of the day in Incheon, South Korea, is 14.2h.

What month has the most sunshine in Incheon?

With an average of 7.5h of sunshine, May has the most sunshine of the year in Incheon.

How long on average sun shines in May in Incheon?

The average sunshine in May is 7.5h.
Average temperature in May - Incheon, South Korea
  • Average high temperature in May: 21.3°C

The warmest month (with the highest average high temperature) is August (29°C).
The month with the lowest average high temperature is January (1.7°C).

  • Average low temperature in May: 12.8°C

The month with the highest average low temperature is August (22.4°C).
The coldest month (with the lowest average low temperature) is January (-5.4°C).

Average humidity in May - Incheon, South Korea
  • Average humidity in May: 70.3%

The month with the highest relative humidity is July (82.2%).
The month with the lowest relative humidity is January (61.5%).

Average rainfall in May - Incheon, South Korea
  • Average rainfall in May: 100.3mm

The wettest month (with the highest rainfall) is July (319.6mm).
The driest month (with the lowest rainfall) is December (19.3mm).

Average rainfall days in May - Incheon, South Korea
  • Average rainfall days in May: 8.7 days

The month with the highest number of rainy days is July (14.9 days).
The month with the lowest number of rainy days is February (5.3 days).

Average sea temperature in May - Incheon, South Korea
  • Average sea temperature in May: 13.3°C

The best month for swimming (with the highest average sea temperature) is August (23.4°C).
The coldest month (with the lowest average sea temperature) is February (3.3°C).

Average daylight in May / Average sunshine in May - Incheon, South Korea
  • Average daylight in May: 14.2h

The month with the longest days is June (Average daylight: 14.7h).
The month with shortest days is December (Average daylight: 9.6h).

  • Average sunshine in May: 7.5h

The month with most sunshine is May (Average sunshine: 7.5h).
The month with least sunshine is July (Average sunshine: 5.1h).

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