July weather forecastKapaau, HI
July
Weather in July
July, like June, in Kapaau, Hawaii, is another comfortable summer month, with an average temperature varying between 66.9°F (19.4°C) and 58.3°F (14.6°C).Temperature
Kapaau marks the onset of July with an average high-temperature of a still enjoyable 66.9°F (19.4°C), a subtle shift from June's 65.8°F (18.8°C). The July nights show a slight decrease to a mean low-temperature of 58.3°F (14.6°C).Humidity
In July, the average relative humidity is 81%.Rainfall
In Kapaau, during July, the rain falls for 24.9 days and regularly aggregates up to 2.09" (53mm) of precipitation. In Kapaau, during the entire year, the rain falls for 280.8 days and collects up to 33.9" (861mm) of precipitation.Daylight
In July, the average length of the day is 13h and 13min.On the first day of July, sunrise is at 5:47 am and sunset at 7:07 pm. On the last day of the month, sunrise is at 5:58 am and sunset at 7:00 pm HST.
Sunshine
With an average of 10h of sunshine, July has the most sunshine of the year.UV index
May through October, with an average maximum UV index of 5, are months with the highest UV index. A UV Index reading of 3 to 5 represents a moderate threat to health from unprotected exposure to Sun's UV rays for average individuals.Note: The daily high UV index of 5 in July translates into this advice:
Preventative actions are necessary - The mandate to avoid skin and eye damage is in place. Considering the Sun's intensity during midday, it's wise to minimize direct exposure. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in July
Kapaau, HI
- Average high temperature in July: 66.9°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 July: 58.3°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 July
Kapaau, HI
- Average pressure in July: 30"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 July
Kapaau, HI
- Average wind speed in July: 5.5mph
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 July
Kapaau, HI
- Average humidity in July: 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 July
Kapaau, HI
- Average rainfall in July: 2.09"
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 July
Kapaau, HI
- Average rainfall days in July: 24.9 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 July /
Average sunshine in July
Kapaau, HI
- Average daylight in July: 13h and 12min
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 July: 10h and 0min
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 July
Kapaau, HI
- Average sunshine days in July: 2.6 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 July
Kapaau, HI
- Average UV index in July: 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 July
Kapaau, HI
- Average cloud cover in July: 39
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 July
Kapaau, HI
- Average visibility in July: 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).





