August weather forecastWainaku, HI
August
Weather in August
The last month of the summer, August, is also a moderately hot month in Wainaku, Hawaii, with an average temperature fluctuating between 75.4°F (24.1°C) and 68.9°F (20.5°C).Temperature
Wainaku's temperature records reveal August as the warmest month, marked by average highs of 75.4°F (24.1°C) and lows of 68.9°F (20.5°C).Humidity
In August, the average relative humidity is 79%.Rainfall
In Wainaku, during August, the rain falls for 19.5 days and regularly aggregates up to 2.52" (64mm) of precipitation. In Wainaku, during the entire year, the rain falls for 227.7 days and collects up to 27.83" (707mm) of precipitation.Ocean temperature
In Wainaku, in August, the average water temperature is 79.2°F (26.2°C).Note: In water activities such as swimming and diving, temperatures from 77°F (25°C) to 84.2°F (29°C) are deemed highly pleasurable for extended periods without any unease.
Daylight
The average length of the day in August is 12h and 47min.On the first day of the month, sunrise is at 5:56 am and sunset at 6:56 pm. On the last day of August, in Wainaku, sunrise is at 6:04 am and sunset at 6:35 pm HST.
Sunshine
In August, the average sunshine is 9h.UV index
The months with the highest UV index are May through December, with an average maximum UV index of 6. A UV Index value of 6 to 7 symbolizes a high threat to health from unprotected exposure to Sun's UV rays for average individuals.Note: In August, the maximum UV index of 6 translates into these guidelines:
Adopt measures and apply sun safety strategies. Shielding from skin and eye damage is necessary. Avoid direct sunlight between the hours of 10 a.m. and 4 p.m., when UV radiation is at its peak. Keep in mind that shade structures may not provide complete protection. A hat with a broad brim is indispensable, filtering out up to half of UV rays. Take warning! Reflective sand and water surfaces intensify the Sun's UV rays.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Wainaku, HI
- Average high temperature in August: 75.4°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 August: 68.9°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 August
Wainaku, HI
- Average pressure in August: 29.98"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 August
Wainaku, HI
- Average wind speed in August: 7.6mph
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 August
Wainaku, HI
- Average humidity in August: 79%
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 August
Wainaku, HI
- Average rainfall in August: 2.52"
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 August
Wainaku, HI
- Average rainfall days in August: 19.5 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 August
Wainaku, HI
- Average sea temperature in August: 79.1°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 August /
Average sunshine in August
Wainaku, HI
- Average daylight in August: 12h and 48min
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 August: 9h and 0min
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 August
Wainaku, HI
- Average sunshine days in August: 1.8 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 August
Wainaku, HI
- Average UV index in August: 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 August
Wainaku, HI
- Average cloud cover in August: 33
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 August
Wainaku, HI
- Average visibility in August: 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).
