June weather forecast and climate
Honolulu, HI

Waikiki beach with clear calm waters on the foot of Honolulu city, Hawaii, with the vast cityscape and mountains in the distance
Waikiki beach 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 essentially the same as in May - a still moderately hot 79.5°F (26.4°C). In June, in Honolulu, Hawaii, the average low-temperature is 74.3°F (23.5°C).

Humidity

The average relative humidity in Honolulu, Hawaii, is 75%.

Rainfall

In June, the rain falls for 15.6 days. Throughout June, 0.94" (24mm) of precipitation is accumulated. In Honolulu, during the entire year, the rain falls for 197.2 days and collects up to 14.61" (371mm) of precipitation.

Ocean temperature

In Honolulu, the average water 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

The month with the longest days is June, with an average of 13.4h of daylight.

Sunshine

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

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 hazard from the exposure to the Sun's UV radiation for the average person.
Note: In June, the average maximum UV index of 6 translate into the following recommendations:
Take precautions and utilize sun safety practices. Protection against the skin and eye damage is required. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. 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. 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?

In June, the average relative humidity in Honolulu, Hawaii, is 75%.

How many days does it rain in June in Honolulu?

In Honolulu, in June, it is raining for 15.6 days, with typically 0.94" (24mm) of accumulated precipitation.

What is the ocean temperature in June in Honolulu?

In Honolulu, Hawaii, in June, the average water temperature 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, Hawaii, with an average of 13.4h of daylight.

How many hours of daylight does Honolulu have in June?

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

What month has the most sunshine in Honolulu?

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

How many hours of sunshine does Honolulu have in June?

In June, the average sunshine in Honolulu 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, Hawaii.

How high is the UV index in June in Honolulu?

In Honolulu, Hawaii, the average daily maximum UV index in June is 6. A UV Index reading of 6 to 7 represents a high hazard to health from unsafe exposure to the Sun's UV rays.
Average temperature in June - Honolulu, HI
  • Average high temperature in June: 79.5°F

The warmest month (with the highest average high temperature) is September (81.5°F).
Months with the lowest average high temperature are February and March (75°F).

  • Average low temperature in June: 74.3°F

The month with the highest average low temperature is August (75.7°F).
The coldest month (with the lowest average low temperature) is February (69.1°F).

Average pressure in June - Honolulu, HI
  • Average pressure in June: 30.03"

The month with the highest atmospheric pressure is April (30.06").
Months with the lowest atmospheric pressure are September and October (29.97").

Average wind speed in June - Honolulu, HI
  • Average wind speed in June: 11.8mph

The windiest month (with the highest average wind speed) is July (12.1mph).
The calmest month (with the lowest average wind speed) is January (9mph).

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: 0.94"

The wettest months (with the highest rainfall) are March and October (1.81").
The driest month (with the least rainfall) is July (0.67").

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 least rainy days is January (12.6 days).

Average sea temperature in June - Honolulu, HI
  • Average sea temperature in June: 78.6°F

The best month for swimming (with the highest average sea temperature) is September (80.4°F).
The coldest month (with the lowest average sea temperature) is March (75.7°F).

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 the shortest days is December (Average daylight: 10.9h).

  • Average sunshine in June: 10.8h

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

Average sunshine days in June - Honolulu, HI
  • Average sunshine days in June: 9.8 days

The month with the most sunshine days is January (12.8 days).
The month with the least sunshine days is October (6.3 days).

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).

Average cloud cover in June - Honolulu, HI
  • Average cloud cover in June: 35

The month with the most cloud cover is March (Cloud cover 40).
Months with the least cloud cover are January and September (Cloud cover 33).

Average visibility in June - Honolulu, HI
  • Average visibility in June: 6mi

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