Contents
- Weather in August
- Frequently asked questions
- Average temperature in August
- Average pressure in August
- Average wind speed in August
- Average humidity in August
- Average rainfall in August
- Average rainfall days in August
- Average sea temperature in August
- Average daylight in August
- Average sunshine in August
- Average sunshine days in August
- Average UV index in August
- Average cloud cover in August
- Average visibility in August
Weather in August
Temperature
In August, Wailua's weather conditions record an average high-temperature of a still warm 79.5°F (26.4°C), demonstrating little divergence from the preceding month. In Wailua, nights during August observe an average temperature decrease to a still warm 75.7°F (24.3°C).Humidity
The months with the highest humidity are June through August, October and December, with an average relative humidity of 77%.Rainfall
In Wailua, in August, during 21.1 rainfall days, 1.89" (48mm) of precipitation is typically accumulated. In Wailua, during the entire year, the rain falls for 218.4 days and collects up to 22.13" (562mm) of precipitation.Ocean temperature
In Wailua, the average seawater temperature in August is 79.2°F (26.2°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 Wailua, the average length of the day in August is 12h and 52min.On the first day of the month, sunrise is at 6:10 am and sunset at 7:17 pm. On the last day of August, sunrise is at 6:20 am and sunset at 6:54 pm HST.
Sunshine
In August, the average sunshine in Wailua, Hawaii, 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 estimate of 6 to 7 represents a high health hazard from unsafe exposure to UV radiation for ordinary individuals.Note: The UV index of 6 in August translates into these instructions:
Elude overexposure. Fair-skinned people could get burnt in less than 20 minutes. Stay in the shade and limit sun exposure from 10 a.m. to 4 p.m., when UV radiation is most potent. Keep in mind that shade structures like parasols or canopies do not offer full protection. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation. Alert! The Sun's UV rays are heightened by the reflection of sand and water.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in August?
What is the most humid month?
What is the average humidity in August?
How many days does it rain in August?
What is the ocean temperature in August?
How many hours of daylight does Wailua have in August?
What time are sunrise and sunset in August?
How many hours of sunshine does Wailua have in August?
What is the month with the lowest UV index?
How high is the UV index in August?
Average temperature in August
Wailua, 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
Wailua, 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
Wailua, 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
Wailua, 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
Wailua, 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
Wailua, 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 sea temperature in August
Wailua, HI
- Average sea temperature in August: 79.2°F
The best month for swimming (with the highest average sea temperature) is September (80.2°F).
The coldest month (with the lowest average sea temperature) is March (74.8°F).
Average daylight in August /
Average sunshine in August
Wailua, HI
- Average daylight in August: 12h and 5min
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 2min
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
Wailua, 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
Wailua, 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
Wailua, 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
Wailua, 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).
Wailua, Hawaii, USA
Weather forecast for your location
2. Allow the app to use your location