August weather forecast
Hanamaulu, HI

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Weather in August

August, the last month of the summer in Hanamaulu, is also a moderately hot month, with an average temperature fluctuating between 79.5°F (26.4°C) and 75.7°F (24.3°C).

Temperature

Hanamaulu experiences an average high-temperature of a still moderately hot 79.5°F (26.4°C) with the onset of August, subtly varied from July's 79°F (26.1°C). The low temperature average during August reflects a slight decrease to a still warm 75.7°F (24.3°C) from the day's peak.

Humidity

June through August, October and December, with an average relative humidity of 77%, are the most humid months in Hanamaulu.

Rainfall

In Hanamaulu, during August, the rain falls for 21.1 days and regularly aggregates up to 1.89" (48mm) of precipitation. Throughout the year, there are 218.4 rainfall days, and 22.13" (562mm) of precipitation is accumulated.

Ocean temperature

In Hanamaulu, the average seawater temperature in August is 79.7°F (26.5°C).
Note: In water activities such as swimming and diving, temperatures from 77°F (25°C) to 84.2°F (29°C) are deemed highly pleasurable for extended periods without any unease.

Daylight

In August, the average length of the day in Hanamaulu is 12h and 52min.
On the first day of August in Hanamaulu, 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

The average sunshine in August in Hanamaulu 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 Hanamaulu. A UV Index value of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV rays for the ordinary person.
Note: In August, the average maximum UV index of 6 translates into the following recommendations:
Sustain precautions and conform to sun safety norms. Preventing sunburn is necessary. Limit your exposure to the sun's UV radiation, which is strongest between 10 a.m. and 4 p.m., and note that parasols or canopies may not provide full sun protection. Employ a hat with a wide brim for robust protection, cutting UV exposure by half. Note! Reflective surfaces like sand and water heighten the UV radiation levels.
Updated: Feb 10, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the average August temperature in Hanamaulu?

During August, Hanamaulu experiences an average high-temperature of 79.5°F (26.4°C) and a low-temperature of 75.7°F (24.3°C).

What are the most humid months in Hanamaulu?

The months with the highest humidity in Hanamaulu, Hawaii, are June through August, October and December, with an average relative humidity of 77%.

What is the average humidity in August in Hanamaulu?

The average relative humidity in August is 77%.

How many days does it rain in August in Hanamaulu?

In Hanamaulu, in August, it is raining for 21.1 days, with typically 1.89" (48mm) of accumulated precipitation.

What is the water temperature in August in Hanamaulu?

In Hanamaulu, Hawaii, in August, the average water temperature is 79.7°F (26.5°C). Water temperature between 77°F (25°C) and 84.2°F (29°C) is regarded as very warm and enjoyable by all. With these temperatures, water activities are pleasurable, without feeling uncomfortable for prolonged periods.

How many hours of daylight does Hanamaulu have in August?

The average day length in August is 12h and 52min.

What time are sunrise and sunset in August in Hanamaulu?

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.

How long on average sun shines in August in Hanamaulu?

In Hanamaulu, Hawaii, the average sunshine duration in August is 8.4h.

What is the month with the lowest UV index in Hanamaulu?

The months with the lowest UV index are January through August, October through December, with an average maximum UV index of 6.

What is the UV index intensity in August in Hanamaulu?

In Hanamaulu, the average daily maximum UV index in August is 6. A UV Index estimate of 6 to 7 represents a high health threat from unprotected exposure to UV radiation.

Average temperature in August
Hanamaulu, HI

Average temperature in August - Hanamaulu, 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
Hanamaulu, HI

Average pressure in August - Hanamaulu, 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
Hanamaulu, HI

Average wind speed in August - Hanamaulu, 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
Hanamaulu, HI

Average humidity in August - Hanamaulu, 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
Hanamaulu, HI

Average rainfall in August - Hanamaulu, 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
Hanamaulu, HI

Average rainfall days in August - Hanamaulu, 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
Hanamaulu, HI

Average sea temperature in August - Hanamaulu, HI
  • Average sea temperature in August: 79.6°F

The best month for swimming (with the highest average sea temperature) is September (80.4°F).
The coldest month (with the lowest average sea temperature) is March (75.3°F).

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

Average daylight in August / Average sunshine in August - Hanamaulu, 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
Hanamaulu, HI

Average sunshine days in August - Hanamaulu, 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
Hanamaulu, HI

Average UV index in August - Hanamaulu, 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
Hanamaulu, HI

Average cloud cover in August - Hanamaulu, 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
Hanamaulu, HI

Average visibility in August - Hanamaulu, 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).

Hanamaulu, Hawaii, USA

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