Jeju
South Korea
Long-term weather forecast
Long-term weather forecast

June 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
The first month of the summer, June, is a warm month in Jeju, South Korea, with average temperature ranging between max 24.8°C (76.6°F) and min 18.7°C (65.7°F).

Temperature

In June, the average high-temperature marginally rises, from an agreeable 21.6°C (70.9°F) in May, to a moderately hot 24.8°C (76.6°F). In June, in Jeju, the average low-temperature is 18.7°C (65.7°F).

Humidity

In June, the average relative humidity is 76.8%.

Rainfall

In June, the rain falls for 11.8 days. Throughout June, 181.4mm (7.1") of precipitation is accumulated. In Jeju, South Korea, during the entire year, the rain falls for 130.2 days and collects up to 1497.7mm (59") of precipitation.

Sea temperature

In June, the average sea temperature is 20.6°C (69.1°F).
Note: For most, swimming in 20.6°C (69.1°F) is not an enjoyable activity. Furthermore, controlling your breathing becomes progressively more difficult as the water temperature decreases from 21°C (69.8°F) to 15°C (59°F).

Daylight

With an average of 14.4h of daylight, June has the longest days of the year.

Sunshine

In Jeju, the average sunshine is 5.7h.

UV index

The average daily maximum UV index in Jeju is 10. A UV Index value of 8 to 10 symbolizes a very high threat to health from unsafe exposure to the UV radiation for ordinary individuals.
Note: The average daily UV index of 10 transform into the following instructions:
Take special precautions, as unprotected eyes and skin can be burned and damaged quickly. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.

What is the temperature in June in Jeju?

In June, in Jeju, South Korea, the average high-temperature is 24.8°C (76.6°F), and the average low-temperature is 18.7°C (65.7°F).

What is the average humidity in June in Jeju?

In Jeju, South Korea, the average relative humidity in June is 76.8%.

How much does it rain in Jeju in June?

In Jeju, South Korea, in June, during 11.8 rainfall days, 181.4mm (7.1") of precipitation is typically accumulated.

What is the sea water temperature in June in Jeju?

In Jeju, South Korea, the average seawater temperature in June is 20.6°C (69.1°F). For most, swimming in 20.6°C (69.1°F) is not an enjoyable activity. Furthermore, controlling your breathing becomes progressively more difficult as the water temperature decreases from 21°C (69.8°F) to 15°C (59°F).

When are the longest days in Jeju?

With an average of 14.4h of daylight, June has the longest days of the year in Jeju.

What is the average length of the day in June in Jeju?

The average length of the day in June in Jeju is 14.4h.

How many hours of sunshine does Jeju have in June?

The average sunshine in June in Jeju is 5.7h.

What is the UV index intensity in June in Jeju?

In Jeju, South Korea, the average daily maximum UV index in June is 10. A UV Index of 8 to 10 symbolizes a very high health vulnerability from the exposure to the Sun's UV radiation.
Average temperature in June - Jeju, South Korea
  • Average high temperature in June: 24.8°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 June: 18.7°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 June - Jeju, South Korea
  • Average humidity in June: 76.8%

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 June - Jeju, South Korea
  • Average rainfall in June: 181.4mm

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 June - Jeju, South Korea
  • Average rainfall days in June: 11.8 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 June - Jeju, South Korea
  • Average sea temperature in June: 20.6°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 June / Average sunshine in June - Jeju, South Korea
  • Average daylight in June: 14.4h

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 June: 5.7h

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 June - Jeju, South Korea
  • Average UV index in June: 10

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).