June weather forecastKapaau, HI
June
Weather in June
June, the first month of the summer in Kapaau, is still a comfortable month, with an average temperature fluctuating between 65.8°F (18.8°C) and 57°F (13.9°C).Temperature
The start of June marks an average high-temperature of a still refreshing 65.8°F (18.8°C), hardly distinguishable from the conditions in May. Kapaau maintains a near steady average temperature of 57°F (13.9°C) during the nights of June, demonstrating little drop from daytime highs.Humidity
The average relative humidity in June is 81%.Rainfall
The month with the least rainfall is June, when the rain falls for 23.8 days and typically collects 1.57" (40mm) of precipitation.Daylight
The month with the longest days is June, with an average of 13h and 18min of daylight.On the first day of June, sunrise is at 5:42 am and sunset at 6:59 pm. On the last day of the month, sunrise is at 5:46 am and sunset at 7:07 pm HST.
Sunshine
In June, the average sunshine is 9.7h.UV index
May through October, with an average maximum UV index of 5, are months with the highest UV index. A UV Index value of 3 to 5 symbolizes a medium vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.Note: The daily high UV index of 5 in June translates into this advice:
Preventative actions are necessary - The mandate to avoid skin and eye damage is in place. It's crucial to reduce time in the direct Sun around mid-day due to the intense solar radiation. 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.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in June
Kapaau, HI
- Average high temperature in June: 65.8°F
The warmest month (with the highest average high temperature) is August (67.5°F).
The month with the lowest average high temperature is March (61.9°F).
- Average low temperature in June: 57°F
The month with the highest average low temperature is September (59°F).
The coldest month (with the lowest average low temperature) is February (52°F).
Average pressure in June
Kapaau, HI
- Average pressure in June: 30.02"Hg
The month with the highest atmospheric pressure is April (30.05"Hg).
The months with the lowest atmospheric pressure are September and October (29.97"Hg).
Average wind speed in June
Kapaau, HI
- Average wind speed in June: 5.3mph
The windiest months (with the highest average wind speed) are July and August (5.5mph).
The calmest months (with the lowest average wind speed) are January, May and October (4.5mph).
Average humidity in June
Kapaau, HI
- Average humidity in June: 81%
The months with the highest relative humidity are September and October (84%).
The month with the lowest relative humidity is February (78%).
Average rainfall in June
Kapaau, HI
- Average rainfall in June: 1.57"
The wettest month (with the highest rainfall) is August (4.13").
The driest month (with the least rainfall) is June (1.57").
Average rainfall days in June
Kapaau, HI
- Average rainfall days in June: 23.8 days
The month with the highest number of rainy days is September (27.3 days).
The month with the least rainy days is January (17.1 days).
Average daylight in June /
Average sunshine in June
Kapaau, HI
- Average daylight in June: 13h and 18min
The month with the longest days is June (Average daylight: 13h and 18min).
The month with the shortest days is December (Average daylight: 10h and 54min).
- Average sunshine in June: 9h and 42min
The month with the most sunshine is July (Average sunshine: 10h and 0min).
The month with the least sunshine is December (Average sunshine: 6h and 30min).
Average sunshine days in June
Kapaau, HI
- Average sunshine days in June: 3.1 days
The month with the most sunshine days is January (9.7 days).
The month with the least sunshine days is September (0.8 days).
Average UV index in June
Kapaau, HI
- Average UV index in June: 5
The months with the highest UV index are May, June, July, August, September and October (UV index 5).
The months with the lowest UV index are January, February, March, April, November and December (UV index 4).
Average cloud cover in June
Kapaau, HI
- Average cloud cover in June: 40
The months with the most cloud cover are April and September (Cloud cover 43).
The month with the least cloud cover is January (Cloud cover 29).
Average visibility in June
Kapaau, 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).
