August weather forecast
Poipu, HI

Weather in August

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

Temperature

In August, the average high-temperature is relatively the same as in July - a still warm 79.5°F (26.4°C). In August, the average low-temperature is 75.7°F (24.3°C).

Humidity

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

Rainfall

In Poipu, in August, during 21.1 rainfall days, 1.89" (48mm) of precipitation is typically accumulated. Throughout the year, in Poipu, Hawaii, there are 218.4 rainfall days, and 22.13" (562mm) of precipitation is accumulated.

Daylight

In August, the average length of the day in Poipu is 12h and 52min.
On the first day of August in Poipu, 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 6:55 pm HST.

Sunshine

In Poipu, 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. A UV Index estimate of 6 to 7 represents a high health risk from unsafe exposure to UV radiation for ordinary individuals.
Note: The average daily UV index of 6 in August transform into the following instructions:
Take precautions against overexposure. Fair-skinned people may get burned in less than 20 minutes. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.
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FAQ

What is the temperature in August in Poipu?

In August, in Poipu, the average high-temperature is 79.5°F (26.4°C), and the average low-temperature is 75.7°F (24.3°C).

What is the most humid month in Poipu?

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

What is the average humidity in August in Poipu?

In Poipu, the average relative humidity in August is 77%.

How many days does it rain in August in Poipu?

In August, in Poipu, the rain falls for 21.1 days. Throughout August, 1.89" (48mm) of precipitation is accumulated.

What is the average length of the day in August in Poipu?

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

What time are sunrise and sunset in August in Poipu?

In August, on the first day of the month, sunrise is at 6:10 am and sunset at 7:17 pm. On the last day of the month, in Poipu, Hawaii, sunrise is at 6:20 am and sunset at 6:55 pm HST.

How long on average sun shines in August in Poipu?

The average sunshine duration in August in Poipu, Hawaii, is 8.4h.

When is the lowest UV index in Poipu?

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

What is the UV index intensity in August in Poipu?

In Poipu, the average daily maximum UV index in August is 6. A UV Index of 6 to 7 symbolizes a high health vulnerability from unprotected exposure to UV radiation.
Average humidity
Average rainfall days
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in August
Poipu, HI

Average temperature in August - Poipu, 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).

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Average pressure in August
Poipu, HI

Average pressure in August - Poipu, 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).

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Average wind speed in August
Poipu, HI

Average wind speed in August - Poipu, 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).

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Average humidity in August
Poipu, HI

Average humidity in August - Poipu, 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%).

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Average rainfall in August
Poipu, HI

Average rainfall in August - Poipu, 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").

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Average rainfall days in August
Poipu, HI

Average rainfall days in August - Poipu, 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).

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

Average daylight in August / Average sunshine in August - Poipu, HI
  • Average daylight in August: 12h and 52min

The month with the longest days is June (Average daylight: 13h and 27min).
The month with the shortest days is December (Average daylight: 10h and 49min).

  • Average sunshine in August: 8h and 24min

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).

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Average sunshine days in August
Poipu, HI

Average sunshine days in August - Poipu, 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).

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Average UV index in August
Poipu, HI

Average UV index in August - Poipu, 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).

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Average cloud cover in August
Poipu, HI

Average cloud cover in August - Poipu, 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).

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Average visibility in August
Poipu, HI

Average visibility in August - Poipu, 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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