August weather forecast
Keanakolu, HI

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Weather in August

The last month of the summer, August, is another refreshing month in Keanakolu, Hawaii, with an average temperature fluctuating between 58.3°F (14.6°C) and 67.5°F (19.7°C).

Temperature

August, recognised by an average high temperature of 67.5°F (19.7°C) and a low of 58.3°F (14.6°C), is Keanakolu's warmest month.

Humidity

In August, the average relative humidity in Keanakolu is 81%.

Rainfall

The month with the most rainfall in Keanakolu is August, when the rain falls for 25.7 days and typically aggregates up to 4.13" (105mm) of precipitation.

Daylight

In Keanakolu, the average length of the day in August is 12h and 47min.
On the first day of August, sunrise is at 5:57 am and sunset at 6:58 pm. On the last day of the month, sunrise is at 6:05 am and sunset at 6:36 pm HST.

Sunshine

The average sunshine in August is 8h.

UV index

The months with the highest UV index are May through October, with an average maximum UV index of 5. A UV Index value of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV radiation for the ordinary person.
Note: A maximum high UV index of 5 in August translates into the following recommendations:
Take precautions. Light skin individuals may get burned in less than 30 minutes. The most potent solar radiation is around mid-day, so one should minimize exposure to direct sunlight during this period. Employ a hat with a wide brim for robust protection, cutting UV exposure by half.
Updated: Feb 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the hottest time of year in Keanakolu?

In Keanakolu, August is the warmest month, with temperatures averaging a high of 67.5°F (19.7°C) and a low of 58.3°F (14.6°C).

What is the average August temperature in Keanakolu?

The high-temperature, in August, in Keanakolu, is 67.5°F (19.7°C), while the low-temperature averages to 58.3°F (14.6°C).

What is the average humidity in August in Keanakolu?

In August, the average relative humidity in Keanakolu, Hawaii, is 81%.

What is the rainiest month in Keanakolu?

The month with the most rainfall is August, when the rain falls for 25.7 days and typically aggregates up to 4.13" (105mm) of precipitation.

How much does it rain in Keanakolu in August?

In Keanakolu, in August, during 25.7 rainfall days, 4.13" (105mm) of precipitation is typically accumulated.

How many hours of daylight does Keanakolu have in August?

In Keanakolu, the average day length in August is 12h and 47min.

What time are sunrise and sunset in August in Keanakolu?

On the first day of August in Keanakolu, Hawaii, sunrise is at 5:57 am and sunset at 6:58 pm. On the last day of the month, sunrise is at 6:05 am and sunset at 6:36 pm HST.

How many hours of sunshine does Keanakolu have in August?

In Keanakolu, Hawaii, the average sunshine duration in August is 8h.

What is the month with the highest UV index in Keanakolu?

The months with the highest UV index in Keanakolu are May through October, with an average maximum UV index of 5.

How high is the UV index in August in Keanakolu?

In Keanakolu, Hawaii, the average daily maximum UV index in August is 5. A UV Index of 3 to 5 symbolizes a medium health risk from unprotected exposure to UV radiation.
Average humidity
Average rainfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in August
Keanakolu, HI

Average temperature in August - Keanakolu, HI
  • Average high temperature in August: 67.5°F

The warmest month (with the highest average high temperature) is August (67.5°F).
The month with the lowest average high temperature is March (61.9°F).

  • Average low temperature in August: 58.3°F

The month with the highest average low temperature is September (59°F).
The coldest month (with the lowest average low temperature) is February (52°F).

Average pressure in August
Keanakolu, HI

Average pressure in August - Keanakolu, HI
  • Average pressure in August: 29.98"Hg

The month with the highest atmospheric pressure is April (30.05"Hg).
The months with the lowest atmospheric pressure are September and October (29.97"Hg).

Average wind speed in August
Keanakolu, HI

Average wind speed in August - Keanakolu, HI
  • Average wind speed in August: 5.5mph

The windiest months (with the highest average wind speed) are July and August (5.5mph).
The calmest months (with the lowest average wind speed) are January, May and October (4.5mph).

Average humidity in August
Keanakolu, HI

Average humidity in August - Keanakolu, HI
  • Average humidity in August: 81%

The months with the highest relative humidity are September and October (84%).
The month with the lowest relative humidity is February (78%).

Average rainfall in August
Keanakolu, HI

Average rainfall in August - Keanakolu, HI
  • Average rainfall in August: 4.13"

The wettest month (with the highest rainfall) is August (4.13").
The driest month (with the least rainfall) is June (1.57").

Average rainfall days in August
Keanakolu, HI

Average rainfall days in August - Keanakolu, HI
  • Average rainfall days in August: 25.7 days

The month with the highest number of rainy days is September (27.3 days).
The month with the least rainy days is January (17.1 days).

Average daylight in August /
Average sunshine in August
Keanakolu, HI

Average daylight in August / Average sunshine in August - Keanakolu, HI
  • Average daylight in August: 12h and 5min

The month with the longest days is June (Average daylight: 13h and 18min).
The month with the shortest days is December (Average daylight: 11h and 0min).

  • Average sunshine in August: 8h and 0min

The month with the most sunshine is July (Average sunshine: 10h and 0min).
The month with the least sunshine is December (Average sunshine: 6h and 30min).

Average sunshine days in August
Keanakolu, HI

Average sunshine days in August - Keanakolu, HI
  • Average sunshine days in August: 2.3 days

The month with the most sunshine days is January (9.7 days).
The month with the least sunshine days is September (0.8 days).

Average UV index in August
Keanakolu, HI

Average UV index in August - Keanakolu, HI
  • Average UV index in August: 5

The months with the highest UV index are May, June, July, August, September and October (UV index 5).
The months with the lowest UV index are January, February, March, April, November and December (UV index 4).

Average cloud cover in August
Keanakolu, HI

Average cloud cover in August - Keanakolu, HI
  • Average cloud cover in August: 40

The months with the most cloud cover are April and September (Cloud cover 43).
The month with the least cloud cover is January (Cloud cover 29).

Average visibility in August
Keanakolu, HI

Average visibility in August - Keanakolu, 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).

Keanakolu, Hawaii, USA

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