August weather forecastKeaau, HI
August
Weather in August
The last month of the summer, August, is another warm month in Keaau, Hawaii, with temperature in the range of an average high of 75.4°F (24.1°C) and an average low of 68.9°F (20.5°C).Temperature
The temperatures reach their highest averages in August, with 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 Keaau, during August, the rain falls for 19.5 days and regularly aggregates up to 2.52" (64mm) of precipitation. Throughout the year, there are 227.7 rainfall days, and 27.83" (707mm) of precipitation is accumulated.Daylight
In Keaau, the average length of the day in August is 12h and 46min.On the first day of August in Keaau, sunrise is at 5:56 am and sunset at 6:56 pm. On the last day of the month, sunrise is at 6:04 am and sunset at 6:35 pm HST.
Sunshine
In August, the average sunshine in Keaau is 9h.UV index
May through December, with an average maximum UV index of 6, are months with the highest UV index in Keaau, Hawaii. A UV Index estimate of 6 to 7 represents a high threat to health from unsafe exposure to UV radiation for average individuals.Note: The UV index of 6 during August translates into the following guidance:
Take precautions against overexposure. Fair-skinned people may get burned in less than 20 minutes. Attempt to stay under shade and limit exposure to the Sun between 10 a.m. and 4 p.m., when UV radiation is at its peak. Remember, devices such as parasols or canopies might not provide complete sun protection. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Keaau, 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
Keaau, 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
Keaau, 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
Keaau, 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
Keaau, 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
Keaau, 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 daylight in August /
Average sunshine in August
Keaau, 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
Keaau, 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
Keaau, 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
Keaau, 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
Keaau, 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).
