August weather forecastKeoneoio, HI
August
Weather in August
The last month of the summer, August, is another warm month in Keoneoio, Hawaii, with temperature in the range of an average high of 78.6°F (25.9°C) and an average low of 75.7°F (24.3°C).Temperature
August brings an average high-temperature of a still warm 78.6°F (25.9°C), showing a slight difference from July's 77.5°F (25.3°C). Keoneoio's August nights exhibit a subtle drop in temperature, averaging at a still moderately hot 75.7°F (24.3°C), closely aligned with the daytime highs.Humidity
July and August, with an average relative humidity of 78%, are the most humid months.Rainfall
In Keoneoio, in August, it is raining for 10.8 days, with typically 0.59" (15mm) of accumulated precipitation. Throughout the year, there are 136.7 rainfall days, and 13.94" (354mm) of precipitation is accumulated.Snowfall
January through August, October through December are months without snowfall.Daylight
The average length of the day in August is 12h and 49min.On the first day of August, sunrise is at 6:00 am and sunset at 7:03 pm. On the last day of the month, sunrise is at 6:09 am and sunset at 6:41 pm HST.
Sunshine
The average sunshine in August is 9.2h.UV index
The months with the lowest UV index are January through August, October through December, with an average maximum UV index of 6. A UV Index reading of 6 to 7 represents a high health vulnerability from unprotected exposure to Sun's UV rays for ordinary individuals.Note: The maximum daily UV index of 6 in August interprets into the following recommendations:
Beware of overexposure. Fair-skinned individuals risk burning in less than 20 minutes. Limit your direct sun exposure, especially between 10 a.m. and 4 p.m., when UV radiation is strongest. Shade structures might not provide complete sun protection. Always opt for UVA and UVB-resistant sunglasses on radiant days.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Keoneoio, HI
- Average high temperature in August: 78.6°F
The warmest month (with the highest average high temperature) is September (79°F).
The month with the lowest average high temperature is March (72.9°F).
- Average low temperature in August: 75.7°F
The month with the highest average low temperature is September (76.1°F).
The coldest month (with the lowest average low temperature) is March (69.8°F).
Average pressure in August
Keoneoio, HI
- Average pressure in August: 29.99"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
Keoneoio, HI
- Average wind speed in August: 14.1mph
The windiest month (with the highest average wind speed) is June (14.4mph).
The calmest month (with the lowest average wind speed) is January (10.9mph).
Average humidity in August
Keoneoio, HI
- Average humidity in August: 78%
The months with the highest relative humidity are July and August (78%).
The months with the lowest relative humidity are January and February (76%).
Average rainfall in August
Keoneoio, HI
- Average rainfall in August: 0.59"
The wettest month (with the highest rainfall) is October (2.17").
The driest month (with the least rainfall) is September (0.43").
Average rainfall days in August
Keoneoio, HI
- Average rainfall days in August: 10.8 days
The month with the highest number of rainy days is March (14.1 days).
The month with the least rainy days is September (8.1 days).
Average snowfall days in August
Keoneoio, HI
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is September (0.1 days).
The months with the least snowfall days are January, February, March, April, May, June, July, August, October, November and December (0 days).
Average daylight in August /
Average sunshine in August
Keoneoio, 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 months with the most sunshine are June and July (Average sunshine: 11h and 18min).
The month with the least sunshine is December (Average sunshine: 6h and 42min).
Average sunshine days in August
Keoneoio, HI
- Average sunshine days in August: 13.2 days
The month with the most sunshine days is January (16.8 days).
The month with the least sunshine days is November (11.2 days).
Average UV index in August
Keoneoio, HI
- Average UV index in August: 6
The month with the highest UV index is September (UV index 7).
The months with the lowest UV index are January, February, March, April, May, June, July, August, October, November and December (UV index 6).
Average cloud cover in August
Keoneoio, HI
- Average cloud cover in August: 26
The month with the most cloud cover is March (Cloud cover 33).
The month with the least cloud cover is September (Cloud cover 23).
Average visibility in August
Keoneoio, 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).





