Honolulu
Hawaii, USA
Long-term weather forecast
Long-term weather forecast

June weather forecast and climate
Honolulu, HI

Waikiki beach viewed from above, with clear calm waters on the foot of Honolulu city, Hawaii, with the vast cityscape and mountains in the distance
Waikiki beach viewed from above, with clear calm waters on the foot of Honolulu city, Hawaii, with the vast cityscape and mountains in the distance
The first month of the summer, June, is still a warm month in Honolulu, Hawaii, with average temperature varying between 79.5°F (26.4°C) and 74.3°F (23.5°C).

Temperature

In June, the average high-temperature is relatively the same as in May - a still moderately hot 79.5°F (26.4°C). In June, the average low-temperature is 74.3°F (23.5°C).

Humidity

The average relative humidity in June is 75%.

Rainfall

In Honolulu, in June, during 15.6 rainfall days, 0.94" (24mm) of precipitation is typically accumulated. Throughout the year, there are 197.2 rainfall days, and 14.61" (371mm) of precipitation is accumulated.

Ocean temperature

In June, the average ocean temperature is 78.6°F (25.9°C).
Note: For any water activity, surface water temperatures between 77°F (25°C) and 84.2°F (29°C) are considered as excellent and extremely pleasant for lengthened periods.

Daylight

With an average of 13.4h of daylight, June has the longest days of the year.

Sunshine

The month with the most sunshine is June, with an average of 10.8h of sunshine.

UV index

January through June, October through December, with an average maximum UV index of 6, are months with the lowest UV index in Honolulu. A UV Index reading of 6 to 7 represents a high health vulnerability from the exposure to the Sun's UV radiation for the average person.
Note: The average daily UV index of 6 transform into the following instructions:
Take precautions and adopt sun safety practices. Protection against sunburn is obliged. 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. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. Beware! The reflection of water and sand dramatically increases exposure to the UV rays.

What is the temperature in June in Honolulu?

In June, in Honolulu, the average high-temperature is 79.5°F (26.4°C), and the average low-temperature is 74.3°F (23.5°C).

What is the average humidity in June in Honolulu?

The average relative humidity in June in Honolulu is 75%.

How many days does it rain in June in Honolulu?

In June, in Honolulu, Hawaii, the rain falls for 15.6 days. Throughout June, 0.94" (24mm) of precipitation is accumulated.

What is the ocean temperature in June in Honolulu?

In Honolulu, Hawaii, the average seawater temperature in June is 78.6°F (25.9°C). For swimming, diving, and other water activities, temperatures between 77°F (25°C) and 84.2°F (29°C) are perceived as very enjoyable and pleasurable for prolonged periods without feeling uncomfortable.

When are the longest days in Honolulu?

June has the longest days of the year in Honolulu, with an average of 13.4h of daylight.

How many hours of daylight does Honolulu have in June?

In June, the average length of the day in Honolulu, Hawaii, is 13.4h.

What month has the most sunshine in Honolulu?

With an average of 10.8h of sunshine, June has the most sunshine of the year.

How long on average sun shines in June in Honolulu?

The average sunshine in June in Honolulu, Hawaii, is 10.8h.

What is the month with the lowest UV index in Honolulu?

January through June, October through December, with an average maximum UV index of 6, are months with the lowest UV index in Honolulu.

What is the UV index intensity in June in Honolulu?

In Honolulu, the average daily maximum UV index in June is 6. A UV Index estimate of 6 to 7 represents a high health threat from the exposure to the Sun's UV rays.
Average temperature in June - Honolulu, HI
  • Average high temperature in June: 26.4°C

The warmest month (with the highest average high temperature) is September (27.5°C).
Months with the lowest average high temperature are February and March (23.9°C).

  • Average low temperature in June: 23.5°C

The month with the highest average low temperature is August (24.3°C).
The coldest month (with the lowest average low temperature) is February (20.6°C).

Average humidity in June - Honolulu, HI
  • Average humidity in June: 75%

Months with the highest relative humidity are February and December (76%).
Months with the lowest relative humidity are April, May, September and November (74%).

Average rainfall in June - Honolulu, HI
  • Average rainfall in June: 24mm

Wettest months (with the highest rainfall) are March and October (46mm).
The driest month (with the lowest rainfall) is July (17mm).

Average rainfall days in June - Honolulu, HI
  • Average rainfall days in June: 15.6 days

Months with the highest number of rainy days are March and October (18 days).
The month with the lowest number of rainy days is January (12.6 days).

Average sea temperature in June - Honolulu, HI
  • Average sea temperature in June: 25.9°C

The best month for swimming (with the highest average sea temperature) is September (26.9°C).
The coldest month (with the lowest average sea temperature) is March (24.3°C).

Average daylight in June / Average sunshine in June - Honolulu, HI
  • Average daylight in June: 13.4h

The month with the longest days is June (Average daylight: 13.4h).
The month with shortest days is December (Average daylight: 10.9h).

  • Average sunshine in June: 10.8h

The month with most sunshine is June (Average sunshine: 10.8h).
Months with least sunshine are November and December (Average sunshine: 6.5).

Average UV index in June - Honolulu, HI
  • Average UV index in June: 6

Months with the highest UV index are July, August and September (UV index 7).
Months with the lowest UV index are January, February, March, April, May, June, October, November and December (UV index 6).