June weather forecastMaunaloa, HI
June
Weather in June
Transitioning into June, Maunaloa witnesses the year's longest daylight hours, stretching to 13.4. Rainfall minimizes to one of the lowest levels, reaching 0.67" (17mm) and marking the beginning of the dryer summer months. Temperatures, both land and sea, remain evenly high, reaffirming the summer season. The trade winds persist, ensuring relief during the warmest part of the day. With clear skies and little cloud interference, stargazers will find June to be a favorable month.Temperature
In June, Maunaloa experiences a barely noticeable shift in meteorological conditions, with average high-temperatures moving from 77°F (25°C) in May to a still moderately hot 78.4°F (25.8°C). Maunaloa records a negligible downturn from daytime temperatures, averaging a low of 75.6°F (24.2°C) in the month of June.Humidity
The months with the highest humidity in Maunaloa are April through August, with an average relative humidity of 76%.Rainfall
In June, the rain falls for 8.8 days. Throughout June, 0.67" (17mm) of precipitation is accumulated. Throughout the year, there are 126.4 rainfall days, and 9.84" (250mm) of precipitation is accumulated.Ocean temperature
In June, the average ocean temperature is 77°F (25°C).Note: For swimming, diving, or other water activities, the temperature range of 77°F (25°C) to 84.2°F (29°C) is perceived as exceptionally enjoyable and comfortable even for prolonged periods.
Daylight
The month with the longest days is June, with an average of 13h and 24min of daylight.On the first day of the month, sunrise is at 5:46 am and sunset at 7:07 pm. On the last day of June, sunrise is at 5:50 am and sunset at 7:14 pm HST.
Sunshine
June has the most sunshine of the year, with an average of 11.5h of sunshine.UV index
The months with the highest UV index are June through October, with an average maximum UV index of 7. A UV Index reading of 6 to 7 represents a high health vulnerability from unprotected exposure to Sun's UV rays for average individuals.Note: A daily high UV index of 7 in June leads to these guidelines:
Sustain precautions and conform to sun safety norms. Preventing sunburn is necessary. Minimize exposure to direct sunlight and seek shade from 10 a.m. to 4 p.m., when UV radiation is most intense, but remember that shade structures may not offer complete protection. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes. Watch out! Sand and water enhance the UV exposure you receive.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in June
Maunaloa, HI
- Average high temperature in June: 78.4°F
The warmest months (with the highest average high temperature) are August and September (80.2°F).
The month with the lowest average high temperature is February (74.3°F).
- Average low temperature in June: 75.6°F
The months with the highest average low temperature are September and October (77.2°F).
The coldest month (with the lowest average low temperature) is March (71.2°F).
Average pressure in June
Maunaloa, HI
- Average pressure in June: 30.03"Hg
The months with the highest atmospheric pressure are March and April (30.05"Hg).
The months with the lowest atmospheric pressure are September and October (29.97"Hg).
Average wind speed in June
Maunaloa, HI
- Average wind speed in June: 13.5mph
The windiest month (with the highest average wind speed) is July (13.9mph).
The calmest month (with the lowest average wind speed) is January (10.8mph).
Average humidity in June
Maunaloa, HI
- Average humidity in June: 76%
The months with the highest relative humidity are April, May, June, July and August (76%).
The months with the lowest relative humidity are January and November (74%).
Average rainfall in June
Maunaloa, HI
- Average rainfall in June: 0.67"
The wettest month (with the highest rainfall) is March (1.3").
The driest month (with the least rainfall) is July (0.31").
Average rainfall days in June
Maunaloa, HI
- Average rainfall days in June: 8.8 days
The month with the highest number of rainy days is March (13.2 days).
The month with the least rainy days is July (8.5 days).
Average sea temperature in June
Maunaloa, HI
- Average sea temperature in June: 77°F
The best months for swimming (with the highest average sea temperature) are September and October (81°F).
The coldest months (with the lowest average sea temperature) are January, February, March and April (75°F).
Average daylight in June /
Average sunshine in June
Maunaloa, HI
- Average daylight in June: 13h and 24min
The month with the longest days is June (Average daylight: 13h and 24min).
The month with the shortest days is December (Average daylight: 10h and 54min).
- Average sunshine in June: 11h and 30min
The month with the most sunshine is June (Average sunshine: 11h and 30min).
The month with the least sunshine is December (Average sunshine: 6h and 48min).
Average sunshine days in June
Maunaloa, HI
- Average sunshine days in June: 15.7 days
The month with the most sunshine days is July (16.1 days).
The month with the least sunshine days is November (10.8 days).
Average UV index in June
Maunaloa, HI
- Average UV index in June: 7
The months with the highest UV index are June, July, August, September and October (UV index 7).
The months with the lowest UV index are January, February, March, April, May, November and December (UV index 6).
Average cloud cover in June
Maunaloa, HI
- Average cloud cover in June: 24
The months with the most cloud cover are February and March (Cloud cover 30).
The month with the least cloud cover is September (Cloud cover 23).
Average visibility in June
Maunaloa, HI
- Average visibility in June: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).





