August weather forecastWaimanalo, HI
August
Weather in August
The last month of the summer, August, is also a moderately hot month in Waimanalo, Hawaii, with an average temperature varying between 80.2°F (26.8°C) and 76.8°F (24.9°C).Temperature
Waimanalo, Hawaii, experiences an average high-temperature of a still moderately hot 80.2°F (26.8°C) in August, marking an insignificant shift from 79.7°F (26.5°C) in July. Waimanalo registers a gentle descent to an average nighttime low of 76.8°F (24.9°C) in August from its daytime highs.Humidity
April, June through August and December, with an average relative humidity of 76%, are the most humid months.Rainfall
In Waimanalo, Hawaii, during August, the rain falls for 12.2 days and regularly aggregates up to 0.75" (19mm) of precipitation. Throughout the year, there are 169.9 rainfall days, and 13.15" (334mm) of precipitation is accumulated.Daylight
The average length of the day in August is 12h and 50min.On the first day of August, sunrise is at 6:04 am and sunset at 7:09 pm. On the last day of the month, sunrise is at 6:14 am and sunset at 6:47 pm HST.
Sunshine
In Waimanalo, Hawaii, the average sunshine in August is 9.2h.UV index
July through October, with an average maximum UV index of 7, are months with the highest UV index. A UV Index estimate of 6 to 7 represents a high health risk from unprotected exposure to Sun's UV rays for average individuals.Note: In August, the maximum UV index of 7 suggests this advice:
Resist overexposure. Safeguarding from solar damage is indispensable. Seek shade and limit direct sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation. Keep in mind that shade structures like parasols or canopies do not offer complete sun protection. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Waimanalo, HI
- Average high temperature in August: 80.2°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 August: 76.8°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 August
Waimanalo, HI
- Average pressure in August: 29.98"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 August
Waimanalo, HI
- Average wind speed in August: 13.7mph
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 August
Waimanalo, HI
- Average humidity in August: 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 August
Waimanalo, HI
- Average rainfall in August: 0.75"
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 August
Waimanalo, HI
- Average rainfall days in August: 12.2 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 daylight in August /
Average sunshine in August
Waimanalo, HI
- Average daylight in August: 12h and 48min
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 August: 9h 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 August
Waimanalo, HI
- Average sunshine days in August: 12.8 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 August
Waimanalo, HI
- Average UV index in August: 7
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 August
Waimanalo, HI
- Average cloud cover in August: 30
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 August
Waimanalo, 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).
