June weather forecastNānākuli, HI
June
Weather in June
June in Nānākuli experiences the amalgamation of previous weather patterns merging with the onset of a warmer period of the year. The shift detects an increase in sun hours and a rise in sea water temperature. The wind speed of 11.4mph (18.3km/h) brings on an enriched wind experience, giving a delightful feel to the month. Moving into July, the climate continues to escalate, promising increased day light hours and further rise in temperature.Temperature
As Nānākuli welcomes June, the average high-temperature records at a still warm 79.7°F (26.5°C), marking an insignificant deviation from the prior month. Nānākuli's June nights experience a subtle temperature dip to an average of 74.7°F (23.7°C).Humidity
January, April through June, August through November, with an average relative humidity of 74%, are the least humid months.Rainfall
In Nānākuli, during June, the rain falls for 15.1 days and regularly aggregates up to 0.98" (25mm) of precipitation. Throughout the year, there are 196.3 rainfall days, and 14.72" (374mm) of precipitation is accumulated.Ocean temperature
In June, the average ocean temperature is 79.2°F (26.2°C).Note: Engaging in water activities, such as swimming or diving, in temperatures from 77°F (25°C) to 84.2°F (29°C) is very pleasurable for extended periods, without any discomfort.
Daylight
June has the longest days of the year, with an average of 13h and 24min of daylight.On the first day of June, sunrise is at 5:49 am and sunset at 7:11 pm. On the last day of the month, sunrise is at 5:54 am and sunset at 7:18 pm HST.
Sunshine
June has the most sunshine of the year, with an average of 10.8h of sunshine.UV index
The months with the highest UV index are June through September, with an average maximum UV index of 7. A UV Index estimate of 6 to 7 represents a high health risk from exposure to the Sun's UV rays for ordinary individuals.Note: The maximum UV index of 7 during June leads to these instructions:
Skirt overexposure. People with light complexions might get scorched in under 20 minutes. Stay in the shade and avoid direct Sun exposure from 10 a.m. to 4 p.m., a period when UV radiation is particularly strong, noting that parasols or canopies may not offer total sun protection. Stay sun-safe with clothing that is both closely woven and worn loosely. Caution! The reflection of sand and water significantly amplifies the Sun's UV radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in June
Nānākuli, HI
- Average high temperature in June: 79.7°F
The warmest months (with the highest average high temperature) are August and September (81.7°F).
The month with the lowest average high temperature is February (75°F).
- Average low temperature in June: 74.7°F
The months with the highest average low temperature are August and September (75.9°F).
The coldest month (with the lowest average low temperature) is February (69.1°F).
Average pressure in June
Nānākuli, HI
- Average pressure in June: 30.03"Hg
The month with the highest atmospheric pressure is April (30.06"Hg).
The months with the lowest atmospheric pressure are September and October (29.97"Hg).
Average wind speed in June
Nānākuli, HI
- Average wind speed in June: 11.4mph
The windiest month (with the highest average wind speed) is July (11.6mph).
The calmest month (with the lowest average wind speed) is October (8.8mph).
Average humidity in June
Nānākuli, HI
- Average humidity in June: 74%
The month with the highest relative humidity is December (76%).
The months with the lowest relative humidity are January, April, May, June, August, September, October and November (74%).
Average rainfall in June
Nānākuli, HI
- Average rainfall in June: 0.98"
The wettest month (with the highest rainfall) is March (1.81").
The driest month (with the least rainfall) is July (0.67").
Average rainfall days in June
Nānākuli, HI
- Average rainfall days in June: 15.1 days
The month with the highest number of rainy days is September (18.9 days).
The month with the least rainy days is January (13.8 days).
Average sea temperature in June
Nānākuli, HI
- Average sea temperature in June: 79.1°F
The best month for swimming (with the highest average sea temperature) is September (80.6°F).
The coldest month (with the lowest average sea temperature) is March (75.7°F).
Average daylight in June /
Average sunshine in June
Nānākuli, 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: 10h and 48min
The month with the most sunshine is June (Average sunshine: 10h and 48min).
The month with the least sunshine is November (Average sunshine: 6h and 36min).
Average sunshine days in June
Nānākuli, HI
- Average sunshine days in June: 9.8 days
The month with the most sunshine days is January (11.8 days).
The month with the least sunshine days is November (6.4 days).
Average UV index in June
Nānākuli, HI
- Average UV index in June: 7
The months with the highest UV index are June, July, August and September (UV index 7).
The months with the lowest UV index are January, February, March, April, May, October, November and December (UV index 6).
Average cloud cover in June
Nānākuli, HI
- Average cloud cover in June: 34
The month with the most cloud cover is March (Cloud cover 38).
The months with the least cloud cover are January and September (Cloud cover 32).
Average visibility in June
Nānākuli, 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).





