August weather forecastKapalua, HI
August
Weather in August
August in Kapalua, Hawaii, showcases very minor fluctuations in climatic conditions compared to the previous month of July. The temperatures are relatively high, heat indexes and temperature highs do not display much deviation, and daylight hours start to reduce marginally. Despite this minor reduction in daylight hours, the intensity of sunlight remains high. In correlation with past trends, sea temperature holds at a high level in August, and wind speed shows trivial yet noticeable increments.Temperature
As August takes its course, Kapalua's average high-temperature registers at a still moderately hot 79.3°F (26.3°C), closely aligning with the preceding month. Kapalua maintains an average of approximately a still moderately hot 76.5°F (24.7°C) during August nights, with only a minimal decrease from the daytime temperature.Humidity
In Kapalua, the average relative humidity in August is 76%.Rainfall
In Kapalua, in August, it is raining for 7.9 days, with typically 0.39" (10mm) of accumulated precipitation. In Kapalua, during the entire year, the rain falls for 112.6 days and collects up to 7.91" (201mm) of precipitation.Ocean temperature
In Kapalua, the average seawater temperature in August is 78.8°F (26°C).Note: Swimming, diving, and other water-related activities in temperatures between 77°F (25°C) and 84.2°F (29°C) are considered highly enjoyable and satisfying for longer durations without uneasiness.
Daylight
The average length of the day in August is 12h and 49min.On the first day of the month, sunrise is at 6:00 am and sunset at 7:04 pm. On the last day of August, in Kapalua, sunrise is at 6:10 am and sunset at 6:43 pm HST.
Sunshine
The average sunshine in August in Kapalua is 9.1h.UV index
The months with the highest UV index in Kapalua are July through October, with an average maximum UV index of 7. A UV Index reading of 6 to 7 represents a high health hazard from unsafe exposure to UV radiation for the average person.Note: In August, a regular UV index of 7 translates into these guidelines:
Take precautions and utilize sun safety practices. Protection against skin and eye damage is required. Minimize exposure to direct sunlight and seek shade from 10 a.m. to 4 p.m., when UV radiation is most intense, but remember that shade structures may not offer complete protection. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes. Take note! Sand and water reflections strengthen the Sun's UV exposure.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Kapalua, HI
- Average high temperature in August: 79.3°F
The warmest month (with the highest average high temperature) is September (79.7°F).
The month with the lowest average high temperature is February (73.9°F).
- Average low temperature in August: 76.5°F
The months with the highest average low temperature are August and October (76.5°F).
The coldest month (with the lowest average low temperature) is March (70.7°F).
Average pressure in August
Kapalua, HI
- Average pressure in August: 29.98"Hg
The month with the highest atmospheric pressure is April (30.06"Hg).
The months with the lowest atmospheric pressure are September and October (29.97"Hg).
Average wind speed in August
Kapalua, HI
- Average wind speed in August: 13.5mph
The windiest month (with the highest average wind speed) is July (13.9mph).
The calmest month (with the lowest average wind speed) is January (10.6mph).
Average humidity in August
Kapalua, HI
- Average humidity in August: 76%
The month with the highest relative humidity is July (77%).
The months with the lowest relative humidity are January, February, March, September and November (75%).
Average rainfall in August
Kapalua, HI
- Average rainfall in August: 0.39"
The wettest month (with the highest rainfall) is March (1.1").
The driest month (with the least rainfall) is July (0.35").
Average rainfall days in August
Kapalua, HI
- Average rainfall days in August: 7.9 days
The month with the highest number of rainy days is March (13.4 days).
The month with the least rainy days is November (7.7 days).
Average sea temperature in August
Kapalua, HI
- Average sea temperature in August: 79°F
The best months for swimming (with the highest average sea temperature) are September and October (81°F).
The coldest months (with the lowest average sea temperature) are January, February, March and April (75°F).
Average daylight in August /
Average sunshine in August
Kapalua, HI
- Average daylight in August: 12h and 48min
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 54min).
- Average sunshine in August: 9h and 6min
The month with the most sunshine is June (Average sunshine: 11h and 12min).
The month with the least sunshine is December (Average sunshine: 6h and 42min).
Average sunshine days in August
Kapalua, HI
- Average sunshine days in August: 17.7 days
The month with the most sunshine days is October (18.4 days).
The month with the least sunshine days is March (12.6 days).
Average UV index in August
Kapalua, HI
- Average UV index in August: 7
The months with the highest UV index are July, August, September and October (UV index 7).
The months with the lowest UV index are January, February, March, April, May, June, November and December (UV index 6).
Average cloud cover in August
Kapalua, HI
- Average cloud cover in August: 28
The month with the most cloud cover is March (Cloud cover 35).
The month with the least cloud cover is September (Cloud cover 25).
Average visibility in August
Kapalua, 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).
