June weather forecastKailua, HI
June
Weather in June
June starts the summer season in Kailua with a noticeable increase in temperature, ruling the weather dynamics for this month. Winds escalate, hitting top speeds of 13.8mph (22.2km/h) on average, while gusts surge to 18.5mph (29.8km/h). The city witnesses a drop in rainfall, clearing the way for sunnier days. With a consistent UV index of 6, it provides conditions conducive to outdoor activities. The extended daylight hours ensure the island's beautiful panoramas can be enjoyed for longer.Temperature
As Kailua, Hawaii, steps into June, the average high-temperature is measured at a still warm 78.4°F (25.8°C), displaying minor differences from May's 77.7°F (25.4°C). Kailua registers a small shift from peak daytime temperatures, with a consistent average low-temperature of 75.4°F (24.1°C) during June.Humidity
April, June through August and December, with an average relative humidity of 76%, are the most humid months in Kailua.Rainfall
In Kailua, in June, it is raining for 11.3 days, with typically 0.79" (20mm) of accumulated precipitation. Throughout the year, in Kailua, Hawaii, there are 169.9 rainfall days, and 13.15" (334mm) of precipitation is accumulated.Ocean temperature
In Kailua, the average seawater temperature in June is 78.6°F (25.9°C).Note: Water temperature ranging from 77°F (25°C) to 84.2°F (29°C) is recognized as warm and pleasant by all, making water activities comfortable and delightful for long durations.
Daylight
With an average of 13h and 24min of daylight, June has the longest days of the year in Kailua.On the first day of June in Kailua, sunrise is at 5:48 am and sunset at 7:09 pm. On the last day of the month, sunrise is at 5:52 am and sunset at 7:17 pm HST.
Sunshine
June has the most sunshine of the year, with an average of 11.2h of sunshine.UV index
The months with the lowest UV index are January through June, November and December, with an average maximum UV index of 6. A UV Index of 6 to 7 symbolizes a high health hazard from unsafe exposure to UV radiation for average individuals.Note: The maximum UV index of 6 during June leads to these instructions:
Implement precautions and maintain sun safety methods. Avoidance of sunburn is demanded. Avoid direct exposure to the Sun between 10 a.m. and 4 p.m., the peak period for UV radiation, noting that objects like parasols or canopies might not offer complete sun protection. Opt for tightly woven and loose clothing to enhance protection from the Sun. Caution! The Sun's UV rays become stronger due to reflections from water and sand.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in June
Kailua, HI
- Average high temperature in June: 78.4°F
The warmest month (with the highest average high temperature) is September (80.6°F).
The month with the lowest average high temperature is February (74.5°F).
- Average low temperature in June: 75.4°F
The months with the highest average low temperature are September and October (77°F).
The coldest month (with the lowest average low temperature) is February (70.5°F).
Average pressure in June
Kailua, 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
Kailua, HI
- Average wind speed in June: 13.8mph
The windiest month (with the highest average wind speed) is July (14.1mph).
The calmest month (with the lowest average wind speed) is January (10.7mph).
Average humidity in June
Kailua, HI
- Average humidity in June: 76%
The months with the highest relative humidity are April, June, July, August and December (76%).
The months with the lowest relative humidity are January and November (74%).
Average rainfall in June
Kailua, HI
- Average rainfall in June: 0.79"
The wettest month (with the highest rainfall) is March (1.69").
The driest month (with the least rainfall) is July (0.55").
Average rainfall days in June
Kailua, HI
- Average rainfall days in June: 11.3 days
The month with the highest number of rainy days is March (16.9 days).
The month with the least rainy days is June (11.3 days).
Average sea temperature in June
Kailua, 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
Kailua, 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 12min
The month with the most sunshine is June (Average sunshine: 11h and 12min).
The month with the least sunshine is December (Average sunshine: 6h and 36min).
Average sunshine days in June
Kailua, HI
- Average sunshine days in June: 13.6 days
The month with the most sunshine days is June (13.6 days).
The months with the least sunshine days are March and November (6.6 days).
Average UV index in June
Kailua, HI
- Average UV index in June: 6
The months with the highest UV index are July, August, September and October (UV index 7).
The months with the lowest UV index are January, February, March, April, May, June, November and December (UV index 6).
Average cloud cover in June
Kailua, HI
- Average cloud cover in June: 29
The month with the most cloud cover is March (Cloud cover 36).
The month with the least cloud cover is September (Cloud cover 27).
Average visibility in June
Kailua, 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).
