August weather forecast
Wailuku, HI

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Weather in August

August is marked by warm temperatures consistent with July, while rainfall shows only a slight increase. The rainfall recorded measures around 0.43" (11mm) over approximately 8.7 days. This month provides ample sunshine hours and a comfortable level of humidity. Wailuku's August weather brings plenty of opportunities for beach activities or sight-seeing around the locale.

Temperature

Wailuku experiences a recorded average high-temperature of a still moderately hot 79.5°F (26.4°C) in August, closely aligned with July's 78.8°F (26°C). Nighttime, during August, brings an average low of 76.3°F (24.6°C), a modest reduction from the day's peak.

Humidity

The months with the highest humidity are July and August, with an average relative humidity of 76%.

Rainfall

In Wailuku, during August, the rain falls for 8.7 days and regularly aggregates up to 0.43" (11mm) of precipitation. In Wailuku, during the entire year, the rain falls for 103.4 days and collects up to 6.57" (167mm) of precipitation.

Daylight

In August, the average length of the day in Wailuku is 12h and 49min.
On the first day of August in Wailuku, sunrise is at 6:00 am and sunset at 7:04 pm. On the last day of the month, sunrise is at 6:09 am and sunset at 6:42 pm HST.

Sunshine

In Wailuku, the average sunshine in August is 9.2h.

UV index

The months with the highest UV index are July through October, with an average maximum UV index of 7. A UV Index of 6 to 7 symbolizes a high health vulnerability from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: The daily maximum UV index of 7 in August interprets into the following advice:
Exercise precautions and adapt sun safety practices. Defence against skin and eye affliction is paramount. Seek shade and limit direct sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation. Keep in mind that shade structures like parasols or canopies do not offer complete sun protection. For a sun-safe wardrobe, go for clothes that are tightly woven and generously sized.
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Frequently asked questions

What is the average August temperature in Wailuku?

Wailuku in August has an average high-temperature of 79.5°F (26.4°C) and an average low-temperature of 76.3°F (24.6°C).

What is the most humid month in Wailuku?

The months with the highest humidity in Wailuku are July and August, with an average relative humidity of 76%.

What is the average humidity in August in Wailuku?

The average relative humidity in August in Wailuku, Hawaii, is 76%.

How many days does it rain in August in Wailuku?

In August, the rain falls for 8.7 days. Throughout August, 0.43" (11mm) of precipitation is accumulated.

How many hours of daylight does Wailuku have in August?

In August, the average day length in Wailuku, Hawaii, is 12h and 49min.

When is the sunrise / sunset in August in Wailuku?

In August, on the first day of the month, sunrise is at 6:00 am and sunset at 7:04 pm. On the last day of the month, sunrise is at 6:09 am and sunset at 6:42 pm HST.

How long on average sun shines in August in Wailuku?

In Wailuku, Hawaii, the average sunshine duration in August is 9.2h.

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

July through October, with an average maximum UV index of 7, are months with the highest UV index.

What is the UV index reading in August in Wailuku?

In Wailuku, the average daily maximum UV index in August is 7. A UV Index value of 6 to 7 symbolizes a high hazard to health from exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in August
Wailuku, HI

Average temperature in August - Wailuku, HI
  • Average high temperature in August: 79.5°F

The warmest month (with the highest average high temperature) is September (79.9°F).
The month with the lowest average high temperature is February (73.9°F).

  • Average low temperature in August: 76.3°F

The month with the highest average low temperature is October (76.5°F).
The coldest months (with the lowest average low temperature) are February and March (70.7°F).

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Average pressure in August
Wailuku, HI

Average pressure in August - Wailuku, 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).

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Average wind speed in August
Wailuku, HI

Average wind speed in August - Wailuku, HI
  • Average wind speed in August: 13.4mph

The windiest month (with the highest average wind speed) is June (13.6mph).
The calmest month (with the lowest average wind speed) is January (10.4mph).

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Average humidity in August
Wailuku, HI

Average humidity in August - Wailuku, HI
  • Average humidity in August: 76%

The months with the highest relative humidity are July and August (76%).
The months with the lowest relative humidity are January and February (74%).

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Average rainfall in August
Wailuku, HI

Average rainfall in August - Wailuku, HI
  • Average rainfall in August: 0.43"

The wettest months (with the highest rainfall) are March and December (0.87").
The driest month (with the least rainfall) is June (0.2").

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Average rainfall days in August
Wailuku, HI

Average rainfall days in August - Wailuku, HI
  • Average rainfall days in August: 8.7 days

The month with the highest number of rainy days is March (11.9 days).
The month with the least rainy days is June (6.6 days).

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

Average daylight in August / Average sunshine in August - Wailuku, 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 54min).

  • Average sunshine in August: 9h and 1min

The month with the most sunshine is June (Average sunshine: 11h and 30min).
The month with the least sunshine is December (Average sunshine: 7h and 0min).

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Average sunshine days in August
Wailuku, HI

Average sunshine days in August - Wailuku, HI
  • Average sunshine days in August: 15.8 days

The month with the most sunshine days is June (19.9 days).
The month with the least sunshine days is March (15.2 days).

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Average UV index in August
Wailuku, HI

Average UV index in August - Wailuku, 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).

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Average cloud cover in August
Wailuku, HI

Average cloud cover in August - Wailuku, HI
  • Average cloud cover in August: 24

The month with the most cloud cover is March (Cloud cover 30).
The months with the least cloud cover are June and September (Cloud cover 21).

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Average visibility in August
Wailuku, HI

Average visibility in August - Wailuku, 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).

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Wailuku, Hawaii, USA

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