August weather forecastKapaau, HI
August
Weather in August
August, the last month of the summer in Kapaau, is also an enjoyable month, with temperature in the range of an average high of 67.5°F (19.7°C) and an average low of 58.3°F (14.6°C).Temperature
August is the month that records the highest temperatures, with averages ranging from a high of 67.5°F (19.7°C) to a low of 58.3°F (14.6°C).Humidity
In August, the average relative humidity is 81%.Rainfall
August is the month with the most rainfall. Rain falls for 25.7 days and accumulates 4.13" (105mm) of precipitation.Daylight
In Kapaau, the average length of the day in August is 12h and 48min.On the first day of the month, sunrise is at 5:58 am and sunset at 7:00 pm. On the last day of August, sunrise is at 6:07 am and sunset at 6:39 pm HST.
Sunshine
In August, the average sunshine is 8h.UV index
May through October, with an average maximum UV index of 5, are months with the highest UV index. A UV Index estimate of 3 to 5 represents a moderate health risk from exposure to the Sun's UV rays for average individuals.Note: In August, a regular UV index of 5 translates into these guidelines:
Be mindful. Individuals with a lighter skin tone may suffer burns in less than 30 minutes. Around midday, solar radiation is most harmful; hence, exposure should be limited. Boost your sun resistance with garments that are densely woven yet spacious.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Kapaau, HI
- Average high temperature in August: 67.5°F
The warmest month (with the highest average high temperature) is August (67.5°F).
The month with the lowest average high temperature is March (61.9°F).
- Average low temperature in August: 58.3°F
The month with the highest average low temperature is September (59°F).
The coldest month (with the lowest average low temperature) is February (52°F).
Average pressure in August
Kapaau, 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
Kapaau, HI
- Average wind speed in August: 5.5mph
The windiest months (with the highest average wind speed) are July and August (5.5mph).
The calmest months (with the lowest average wind speed) are January, May and October (4.5mph).
Average humidity in August
Kapaau, HI
- Average humidity in August: 81%
The months with the highest relative humidity are September and October (84%).
The month with the lowest relative humidity is February (78%).
Average rainfall in August
Kapaau, HI
- Average rainfall in August: 4.13"
The wettest month (with the highest rainfall) is August (4.13").
The driest month (with the least rainfall) is June (1.57").
Average rainfall days in August
Kapaau, HI
- Average rainfall days in August: 25.7 days
The month with the highest number of rainy days is September (27.3 days).
The month with the least rainy days is January (17.1 days).
Average daylight in August /
Average sunshine in August
Kapaau, 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: 10h and 54min).
- Average sunshine in August: 8h and 0min
The month with the most sunshine is July (Average sunshine: 10h and 0min).
The month with the least sunshine is December (Average sunshine: 6h and 30min).
Average sunshine days in August
Kapaau, HI
- Average sunshine days in August: 2.3 days
The month with the most sunshine days is January (9.7 days).
The month with the least sunshine days is September (0.8 days).
Average UV index in August
Kapaau, HI
- Average UV index in August: 5
The months with the highest UV index are May, June, July, August, September and October (UV index 5).
The months with the lowest UV index are January, February, March, April, November and December (UV index 4).
Average cloud cover in August
Kapaau, HI
- Average cloud cover in August: 40
The months with the most cloud cover are April and September (Cloud cover 43).
The month with the least cloud cover is January (Cloud cover 29).
Average visibility in August
Kapaau, 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).
