July weather forecastWainaku, HI
July
Weather in July
July, like June, in Wainaku, Hawaii, is a moderately hot summer month, with an average temperature ranging between min 68.4°F (20.2°C) and max 74.7°F (23.7°C).Temperature
July's commencement is accompanied by an average high-temperature of a still warm 74.7°F (23.7°C), diverging marginally from June's 73.6°F (23.1°C). Consistently, Wainaku reports average nighttime temperatures of 68.4°F (20.2°C) during July, a marginal step down from its daytime highs.Humidity
The months with the lowest humidity are January, May through July, with an average relative humidity of 78%.Rainfall
In Wainaku, during July, the rain falls for 17.8 days and regularly aggregates up to 1.61" (41mm) of precipitation. Throughout the year, there are 227.7 rainfall days, and 27.83" (707mm) of precipitation is accumulated.Ocean temperature
In Wainaku, Hawaii, the average seawater temperature in July is 78.4°F (25.8°C).Note: Water temperatures between 77°F (25°C) and 84.2°F (29°C) are regarded as very warm, ensuring all water activities are pleasurable for extended periods without feeling uneasy.
Daylight
In July, the average length of the day is 13h and 11min.On the first day of July in Wainaku, sunrise is at 5:45 am and sunset at 7:03 pm. On the last day of the month, sunrise is at 5:56 am and sunset at 6:57 pm HST.
Sunshine
In July, the average sunshine is 10.7h.UV index
May through December, with an average maximum UV index of 6, are months with the highest UV index. A UV Index estimate of 6 to 7 represents a high health hazard from unprotected exposure to Sun's UV rays for the ordinary person.Note: The maximum daily UV index of 6 in July interprets into the following recommendations:
Implement precautions and maintain sun safety methods. Avoidance of sunburn is demanded. Limit direct sun exposure and seek shade between 10 a.m. and 4 p.m., the time of the most intense UV radiation, noting that shade structures may not provide total sun protection. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear. Take heed! Reflections of sand and water make the Sun's UV rays stronger.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in July
Wainaku, HI
- Average high temperature in July: 74.7°F
The warmest month (with the highest average high temperature) is August (75.4°F).
The month with the lowest average high temperature is March (69.6°F).
- Average low temperature in July: 68.4°F
The month with the highest average low temperature is September (70°F).
The coldest month (with the lowest average low temperature) is March (64°F).
Average pressure in July
Wainaku, 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
Wainaku, HI
- Average wind speed in July: 7.1mph
The windiest month (with the highest average wind speed) is August (7.6mph).
The calmest month (with the lowest average wind speed) is October (6.7mph).
Average humidity in July
Wainaku, HI
- Average humidity in July: 78%
The month with the highest relative humidity is March (80%).
The months with the lowest relative humidity are January, May, June and July (78%).
Average rainfall in July
Wainaku, HI
- Average rainfall in July: 1.61"
The wettest month (with the highest rainfall) is February (3.78").
The driest month (with the least rainfall) is June (1.1").
Average rainfall days in July
Wainaku, HI
- Average rainfall days in July: 17.8 days
The month with the highest number of rainy days is March (22.9 days).
The month with the least rainy days is January (13.3 days).
Average sea temperature in July
Wainaku, HI
- Average sea temperature in July: 78.4°F
The best month for swimming (with the highest average sea temperature) is September (79.3°F).
The coldest month (with the lowest average sea temperature) is March (75.7°F).
Average daylight in July /
Average sunshine in July
Wainaku, 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: 11h and 0min).
- Average sunshine in July: 10h and 42min
The month with the most sunshine is June (Average sunshine: 10h and 54min).
The month with the least sunshine is December (Average sunshine: 6h and 30min).
Average sunshine days in July
Wainaku, HI
- Average sunshine days in July: 3.2 days
The month with the most sunshine days is January (12.1 days).
The month with the least sunshine days is August (1.8 days).
Average UV index in July
Wainaku, HI
- Average UV index in July: 6
The months with the highest UV index are May, June, July, August, September, October, November and December (UV index 6).
The months with the lowest UV index are January, February, March and April (UV index 5).
Average cloud cover in July
Wainaku, HI
- Average cloud cover in July: 32
The month with the most cloud cover is March (Cloud cover 42).
The month with the least cloud cover is January (Cloud cover 26).
Average visibility in July
Wainaku, 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).





