Incheon
South Korea
Long-term weather forecast
Long-term weather forecast

May weather forecast and climate
Incheon, South Korea

May, the last month of the spring, in Incheon, is an agreeable month, with average temperature fluctuating between 21.3°C (70.3°F) and 12.8°C (55°F).

Temperature

In Incheon, the average high-temperature rises, from a comfortable 16.1°C (61°F) in April, to an agreeable 21.3°C (70.3°F). In May, the average low-temperature is 12.8°C (55°F).

Humidity

In May, the average relative humidity is 70.3%.

Rainfall

In Incheon, in May, during 8.7 rainfall days, 100.3mm (3.9") of precipitation is typically accumulated. Throughout the year, there are 101.9 rainfall days, and 1234.5mm (48.6") of precipitation is accumulated.

Sea temperature

In Incheon, the average water temperature is 13.3°C (55.9°F).
Note: Swimming in 13.3°C (55.9°F) is considered dangerous. Unprotected immersion in temperatures below 10°C (50°F) causes quickly maximum intensity cold shock with hyperventilation.

Daylight

In May, the average length of the day is 14.2h.

Sunshine

May has the most sunshine of the year, with an average of 7.5h of sunshine.

What is the temperature in May in Incheon?

In May, the average high-temperature is 21.3°C (70.3°F), and 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 Incheon, in May, it is raining for 8.7 days, with typically 100.3mm (3.9") of accumulated precipitation.

What is the water temperature in May in Incheon?

In Incheon, the average seawater temperature in May 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.

What is the average length of the day in May in Incheon?

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

What month has the most sunshine in Incheon?

The month with the most sunshine in Incheon is May, with an average of 7.5h of sunshine.

How long on average sun shines in May in Incheon?

The average sunshine in May in Incheon, South Korea, 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).