March weather forecast and climate
Jeju, South Korea

A high sunrise Panorama of the Jeju Island in Jeju, South Korea
A high sunrise Panorama of the Jeju Island in Jeju, South Korea

What is the temperature in March in Jeju?

In Jeju, in March, the average high-temperature is 12.8°C (55°F), and the average low-temperature is 6.1°C (43°F).

How many days does it rain in March in Jeju?

In March, in Jeju, the rain falls for 11.2 days. Throughout March, 88.6mm (3.5") of precipitation is accumulated.

When is the sea coldest in Jeju?

Month with the coldest seawater is March, with an average sea temperature of 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.

How cold is the water in March in Jeju?

In Jeju, South Korea, in March, 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.
Average temperature in March - Jeju, South Korea
  • Average high temperature in March: 12.8°C

The warmest month (with the highest average high temperature) is August (29.8°C).
The month with the lowest average high temperature is January (8.3°C).

  • Average low temperature in March: 6.1°C

The month with the highest average low temperature is August (24.3°C).
The coldest month (with the lowest average low temperature) is January (3.2°C).

Average humidity in March - Jeju, South Korea
  • Average humidity in March: 64.9%

The month with the highest relative humidity is July (78.3%).
Months with the lowest relative humidity are February and March (64.9%).

Average rainfall in March - Jeju, South Korea
  • Average rainfall in March: 88.6mm

The wettest month (with the highest rainfall) is August (262.5mm).
The driest month (with the lowest rainfall) is December (47.7mm).

Average rainfall days in March - Jeju, South Korea
  • Average rainfall days in March: 11.2 days

The month with the highest number of rainy days is August (13.5 days).
The month with the lowest number of rainy days is October (7 days).

Average sea temperature in March - Jeju, South Korea
  • Average sea temperature in March: 13.3°C

The best month for swimming (with the highest average sea temperature) is August (26.2°C).
The coldest month (with the lowest average sea temperature) is March (13.3°C).

Average daylight in March / Average sunshine in March - Jeju, South Korea
  • Average daylight in March: 12h

The month with the longest days is June (Average daylight: 14.4h).
The month with shortest days is December (Average daylight: 10h).

  • Average sunshine in March: 5.1h

The month with most sunshine is May (Average sunshine: 6.8h).
The month with least sunshine is January (Average sunshine: 2.3h).

Average UV index in March - Jeju, South Korea
  • Average UV index in March: 6

The month with the highest UV index is July (UV index 11).
Months with the lowest UV index are January and December (UV index 3).

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