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
August's average high-temperature stands at a still warm 79.5°F (26.4°C), showing little deviation from July's 79°F (26.1°C). Kapaa's nighttime temperature in August shows a minor descent, with a steady average of 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 Kapaa, Hawaii, in August, during 21.1 rainfall days, 1.89" (48mm) of precipitation is typically accumulated. In Kapaa, Hawaii, during the entire year, the rain falls for 218.4 days and collects up to 22.13" (562mm) of precipitation.Ocean temperature
In Kapaa, the average seawater temperature in August is 79.2°F (26.2°C).Note: Water temperature ranging from 77°F (25°C) to 84.2°F (29°C) is recognized as warm and pleasant by all, making water activities comfortable and delightful for long durations.
Daylight
In August, the average length of the day is 12h and 52min.On the first day of August, sunrise is at 6:10 am and sunset at 7:17 pm. On the last day of the month, sunrise is at 6:20 am and sunset at 6:54 pm HST.
Sunshine
In Kapaa, 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 in Kapaa, Hawaii. A UV Index value of 6 to 7 symbolizes a high health vulnerability from unprotected exposure to Sun's UV rays for the average person.Note: A daily high UV index of 6 in August leads to these guidelines:
Shield from overexposure. Defense against sun-related harm is required. Make an effort to avoid direct sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation, and note that objects like parasols or canopies might not offer full sun protection. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration. Take warning! Reflective sand and water surfaces intensify the Sun's UV rays.
Frequently asked questions
What are the temperatures in Kapaa in August?
What are the most humid months in Kapaa?
What is the average humidity in August in Kapaa?
How much does it rain in Kapaa in August?
How warm is the water in August in Kapaa?
How many hours of daylight does Kapaa have in August?
When is the sunrise / sunset in August in Kapaa?
How many hours of sunshine does Kapaa have in August?
When is the lowest UV index in Kapaa?
What is the UV index reading in August in Kapaa?
Average temperature in August
Kapaa, 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
Kapaa, 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
Kapaa, 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
Kapaa, 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
Kapaa, 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
Kapaa, 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
Kapaa, 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
Kapaa, 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
Kapaa, 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
Kapaa, 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
Kapaa, 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
Kapaa, 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).
Kapaa, Hawaii, USA
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