August weather forecastKeauhou, HI
August
Weather in August
The last month of the summer, August, is also an agreeable month in Keauhou, Hawaii, with an average temperature fluctuating between 73.2°F (22.9°C) and 69.1°F (20.6°C).Temperature
Temperatures reach their maximum during August and October, recording an average high-temperature of 73.2°F (22.9°C).Humidity
June through September, with an average relative humidity of 81%, are the most humid months.Rainfall
In Keauhou, in August, during 21.8 rainfall days, 1.73" (44mm) of precipitation is typically accumulated. In Keauhou, during the entire year, the rain falls for 216.1 days and collects up to 16.57" (421mm) of precipitation.Ocean temperature
In August, the average ocean temperature is 79.5°F (26.4°C).Note: For any water activity, the surface water temperatures in the range of 77°F (25°C) to 84.2°F (29°C) are deemed excellent and incredibly pleasant for longer durations.
Daylight
In Keauhou, the average length of the day in August is 12h and 46min.On the first day of August, sunrise is at 6:00 am and sunset at 7:00 pm. On the last day of the month, sunrise is at 6:08 am and sunset at 6:39 pm HST.
Sunshine
In Keauhou, Hawaii, the average sunshine in August is 8.7h.UV index
May through October, with an average maximum UV index of 6, are months with the highest UV index in Keauhou, Hawaii. A UV Index reading of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV radiation for the ordinary person.Note: In August, a regular UV index of 6 translates into these guidelines:
Stay clear of intense sun exposure. Solar protection is of utmost significance. Avoid direct Sun exposure and stay in the shade between 10 a.m. and 4 p.m., a time when UV radiation is most intense, noting that not all shade structures offer full protection. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays. Be mindful! Sand and water reflections can up the Sun's UV exposure.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Keauhou, HI
- Average high temperature in August: 73.2°F
The warmest months (with the highest average high temperature) are August and October (73.2°F).
The month with the lowest average high temperature is February (68.9°F).
- Average low temperature in August: 69.1°F
The month with the highest average low temperature is October (70°F).
The coldest month (with the lowest average low temperature) is March (64.8°F).
Average pressure in August
Keauhou, HI
- Average pressure in August: 29.97"Hg
The month with the highest atmospheric pressure is April (30.04"Hg).
The months with the lowest atmospheric pressure are September and October (29.96"Hg).
Average wind speed in August
Keauhou, HI
- Average wind speed in August: 6.1mph
The windiest month (with the highest average wind speed) is May (6.3mph).
The calmest month (with the lowest average wind speed) is December (5.3mph).
Average humidity in August
Keauhou, HI
- Average humidity in August: 81%
The months with the highest relative humidity are June, July, August and September (81%).
The month with the lowest relative humidity is February (73%).
Average rainfall in August
Keauhou, HI
- Average rainfall in August: 1.73"
The wettest month (with the highest rainfall) is September (1.81").
The driest month (with the least rainfall) is January (0.75").
Average rainfall days in August
Keauhou, HI
- Average rainfall days in August: 21.8 days
The month with the highest number of rainy days is August (21.8 days).
The month with the least rainy days is January (10.8 days).
Average sea temperature in August
Keauhou, HI
- Average sea temperature in August: 79.5°F
The best month for swimming (with the highest average sea temperature) is September (80°F).
The coldest month (with the lowest average sea temperature) is March (76°F).
Average daylight in August /
Average sunshine in August
Keauhou, 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: 8h and 42min
The month with the most sunshine is May (Average sunshine: 10h and 42min).
The months with the least sunshine are November and December (Average sunshine: 7h and 18min).
Average sunshine days in August
Keauhou, HI
- Average sunshine days in August: 4 days
The month with the most sunshine days is January (12.7 days).
The month with the least sunshine days is May (3.2 days).
Average UV index in August
Keauhou, HI
- Average UV index in August: 6
The months with the highest UV index are May, June, July, August, September and October (UV index 6).
The months with the lowest UV index are January, February, March, April, November and December (UV index 5).
Average cloud cover in August
Keauhou, HI
- Average cloud cover in August: 28
The month with the most cloud cover is June (Cloud cover 31).
The month with the least cloud cover is January (Cloud cover 15).
Average visibility in August
Keauhou, 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).
