August weather forecastPrinceville, HI
August
Weather in August
In August, temperature values reach the year's peak in Princeville Hawaii, hitting an average of 79.5°F (26.4°C). Beyond the rise in temperature, August also draws the year's highest number of daylight hours, making each day feel longer and richer. The UV index remains steady while the visibility is uniformly high, validating August as a popular month for tourism. Though rainfall is substantially higher than spring months, it is generally well-dispersed. The calm wind speeds further add to the pleasing conditions of the month.Temperature
The dawn of August sees an average high-temperature of a still moderately hot 79.5°F (26.4°C), subtly contrasting with July's 79°F (26.1°C). An average low-temperature of 75.7°F (24.3°C), slightly less than the daytime peak, marks the month of August.Humidity
June through August, October and December, with an average relative humidity of 77%, are the most humid months.Rainfall
In August, the rain falls for 21.1 days. Throughout August, 1.89" (48mm) of precipitation is accumulated. Throughout the year, there are 218.4 rainfall days, and 22.13" (562mm) of precipitation is accumulated.Daylight
The average length of the day in August is 12h and 52min.On the first day of August in Princeville, sunrise is at 6:10 am and sunset at 7:18 pm. On the last day of the month, sunrise is at 6:20 am and sunset at 6:55 pm HST.
Sunshine
The average sunshine in August is 8.4h.UV index
January through August, October through December, with an average maximum UV index of 6, are months with the lowest UV index. A UV Index value of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV radiation for ordinary individuals.Note: In August, a daily UV index of 6 turns into the following recommendations:
Take precautions against overexposure. Protection against sun damage is needed. UV radiation from the sun is at its strongest between 10 a.m. and 4 p.m. Try to limit direct exposure during these hours. 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
Princeville, HI
- Average high temperature in August: 79.5°F
The warmest month (with the highest average high temperature) is September (79.7°F).
The months with the lowest average high temperature are February and March (73.2°F).
- Average low temperature in August: 75.7°F
The month with the highest average low temperature is September (75.9°F).
The coldest month (with the lowest average low temperature) is February (68.5°F).
Average pressure in August
Princeville, HI
- Average pressure in August: 30"Hg
The month with the highest atmospheric pressure is April (30.07"Hg).
The months with the lowest atmospheric pressure are September and October (29.98"Hg).
Average wind speed in August
Princeville, HI
- Average wind speed in August: 12.1mph
The windiest month (with the highest average wind speed) is July (12.3mph).
The calmest month (with the lowest average wind speed) is January (10mph).
Average humidity in August
Princeville, HI
- Average humidity in August: 77%
The months with the highest relative humidity are June, July, August, October and December (77%).
The month with the lowest relative humidity is January (75%).
Average rainfall in August
Princeville, HI
- Average rainfall in August: 1.89"
The wettest month (with the highest rainfall) is March (2.52").
The driest month (with the least rainfall) is April (1.3").
Average rainfall days in August
Princeville, HI
- Average rainfall days in August: 21.1 days
The month with the highest number of rainy days is August (21.1 days).
The month with the least rainy days is January (12.5 days).
Average daylight in August /
Average sunshine in August
Princeville, HI
- Average daylight in August: 12h and 54min
The month with the longest days is June (Average daylight: 13h and 30min).
The month with the shortest days is December (Average daylight: 10h and 48min).
- Average sunshine in August: 8h and 24min
The month with the most sunshine is June (Average sunshine: 9h and 42min).
The month with the least sunshine is November (Average sunshine: 6h and 12min).
Average sunshine days in August
Princeville, HI
- Average sunshine days in August: 2.9 days
The month with the most sunshine days is January (12.8 days).
The month with the least sunshine days is August (2.9 days).
Average UV index in August
Princeville, 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
Princeville, HI
- Average cloud cover in August: 44
The month with the most cloud cover is March (Cloud cover 47).
The months with the least cloud cover are January and September (Cloud cover 38).
Average visibility in August
Princeville, 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).
