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
Stepping into August, Waialua records an average high-temperature of a still moderately hot 81.5°F (27.5°C), almost consistent with July. In Waialua, nights during August observe an average temperature decrease to a still warm 75.7°F (24.3°C).Heat index
For August, the heat index is evaluated at a hot 86°F (30°C). Continuous activity in exposure could lead to a feeling of fatigue and heat cramps.Heat index guidelines indicate values are for light wind scenarios and shaded regions. Heat index values might soar by up to 15 Fahrenheit (8 Celsius) degrees with exposure to direct sunshine.
Note: The heat index, also known as 'feels like' or 'real feel', is a value derived by merging air temperature with the humidity to convey how the climate feels. This effect tends to be personal, with the weather perception differing among individuals due to variations in body mass, height, and exertion. Direct exposure to the sun's rays can enhance the felt temperature, increasing the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially vital to children. Typically, young kids are at a higher risk than adults since they sweat less. Also, the larger skin surface in proportion to their small bodies and the heightened heat production due to their active nature adds to their vulnerability.
Humidity
The average relative humidity in August in Waialua is 75%.Rainfall
In August, in Waialua, the rain falls for 16.3 days. Throughout August, 0.79" (20mm) of precipitation is accumulated. In Waialua, during the entire year, the rain falls for 190.2 days and collects up to 11.65" (296mm) of precipitation.Ocean temperature
In August, the average ocean temperature in Waialua, Hawaii, is 79.3°F (26.3°C).Note: For swimming, diving, and other water activities, temperatures between 77°F (25°C) and 84.2°F (29°C) are perceived as very enjoyable and pleasurable for prolonged periods without feeling uncomfortable.
Daylight
The average length of the day in August is 12h and 51min.On the first day of the month, sunrise is at 6:05 am and sunset at 7:11 pm. On the last day of August, in Waialua, sunrise is at 6:15 am and sunset at 6:49 pm HST.
Sunshine
In August, the average sunshine in Waialua is 8.2h.UV index
January through June, August, October through December, with an average maximum UV index of 6, are months with the lowest UV index in Waialua. A UV Index of 6 to 7 symbolizes a high health hazard from unsafe exposure to UV radiation for the ordinary person.Note: The UV index of 6 in August translates into these instructions:
Skirt overexposure. People with light complexions might get scorched in under 20 minutes. Stay in the shade and avoid direct Sun exposure from 10 a.m. to 4 p.m., a time when UV radiation is at its strongest, and remember that parasols or canopies do not offer full protection. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades. Caution! Sand and water surfaces escalate the UV intensity from the Sun.
Frequently asked questions
What are the temperatures in Waialua in August?
What is the average humidity in August in Waialua?
How many days does it rain in August in Waialua?
What is the ocean temperature in August in Waialua?
What is the average length of the day in August in Waialua?
What time are sunrise and sunset in August in Waialua?
How long on average sun shines in August in Waialua?
What are the months with the lowest UV index in Waialua?
How high is the UV index in August in Waialua?
Average temperature in August
Waialua, HI
- Average high temperature in August: 81.5°F
The warmest month (with the highest average high temperature) is September (81.7°F).
The month with the lowest average high temperature is February (75°F).
- Average low temperature in August: 75.7°F
The months with the highest average low temperature are August and September (75.7°F).
The coldest month (with the lowest average low temperature) is February (68.5°F).
Average pressure in August
Waialua, HI
- Average pressure in August: 29.99"Hg
The month with the highest atmospheric pressure is April (30.06"Hg).
The month with the lowest atmospheric pressure is October (29.97"Hg).
Average wind speed in August
Waialua, HI
- Average wind speed in August: 10.9mph
The windiest month (with the highest average wind speed) is July (11.6mph).
The calmest month (with the lowest average wind speed) is January (9mph).
Average humidity in August
Waialua, HI
- Average humidity in August: 75%
The months with the highest relative humidity are February and December (76%).
The months with the lowest relative humidity are May and September (74%).
Average rainfall in August
Waialua, HI
- Average rainfall in August: 0.79"
The wettest months (with the highest rainfall) are February and October (1.34").
The driest month (with the least rainfall) is July (0.63").
Average rainfall days in August
Waialua, HI
- Average rainfall days in August: 16.3 days
The month with the highest number of rainy days is March (17.7 days).
The month with the least rainy days is January (12.5 days).
Average sea temperature in August
Waialua, HI
- Average sea temperature in August: 79.3°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 (75.2°F).
Average daylight in August /
Average sunshine in August
Waialua, HI
- Average daylight in August: 12h and 5min
The month with the longest days is June (Average daylight: 13h and 24min).
The month with the shortest days is December (Average daylight: 10h and 48min).
- Average sunshine in August: 8h and 1min
The month with the most sunshine is June (Average sunshine: 9h and 54min).
The month with the least sunshine is November (Average sunshine: 6h and 12min).
Average sunshine days in August
Waialua, HI
- Average sunshine days in August: 7.2 days
The month with the most sunshine days is January (12.9 days).
The month with the least sunshine days is September (6.5 days).
Average UV index in August
Waialua, HI
- Average UV index in August: 6
The months with the highest UV index are July and September (UV index 7).
The months with the lowest UV index are January, February, March, April, May, June, August, October, November and December (UV index 6).
Average cloud cover in August
Waialua, HI
- Average cloud cover in August: 41
The month with the most cloud cover is March (Cloud cover 44).
The months with the least cloud cover are January and September (Cloud cover 37).
Average visibility in August
Waialua, 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).
Waialua, Hawaii, USA
Weather forecast for your location
2. Allow the app to use your location
