August weather forecast
Naalehu, HI

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Weather in August

August in Naalehu offers the highest temperatures of the year, averaging around 73.2°F (22.9°C), where humidity stays steady at 81%. Rain becomes more frequent with rainfall amounting to 1.73" (44mm). Despite minimal shifts in cloud cover and daylight hours, the overall conditions remain quite similar to July. The warm, yet comfortable, weather during this month brings a unique flavor to the Hawaiian summer.

Temperature

August and October are characterised by peak temperatures, with an average high of 73.2°F (22.9°C).

Humidity

June through September, with an average relative humidity of 81%, are the most humid months in Naalehu.

Rainfall

In Naalehu, during August, the rain falls for 21.8 days and regularly aggregates up to 1.73" (44mm) of precipitation. In Naalehu, Hawaii, during the entire year, the rain falls for 216.1 days and collects up to 16.57" (421mm) of precipitation.

Daylight

In Naalehu, the average length of the day in August is 12h and 45min.
On the first day of August in Naalehu, sunrise is at 5:59 am and sunset at 6:57 pm. On the last day of the month, sunrise is at 6:07 am and sunset at 6:37 pm HST.

Sunshine

In August, the average sunshine is 8.7h.

UV index

The months with the highest UV index are May through October, with an average maximum UV index of 6. A UV Index reading of 6 to 7 represents a high health hazard from exposure to the Sun's UV radiation for average individuals.
Note: During August, 6 as the daily maximum UV index converts into the following advice:
Avoid excessive sunlight. Those with lighter skin may experience burning in less than 20 minutes. Avoid direct Sun exposure and stay in the shade between 10 a.m. and 4 p.m., a time when UV radiation is most intense, noting that not all shade structures offer full protection. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage.
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Frequently asked questions

What are the warmest months in Naalehu?

During August and October, Naalehu registers its highest temperatures, averaging a high of 73.2°F (22.9°C).

What are August temperatures in Naalehu?

Naalehu in August has an average high-temperature of 73.2°F (22.9°C) and an average low-temperature of 69.1°F (20.6°C).

What is the most humid month in Naalehu?

June through September, with an average relative humidity of 81%, are most humid months in Naalehu, Hawaii.

What is the average humidity in August in Naalehu?

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

How many days does it rain in August in Naalehu?

In August, the rain falls for 21.8 days. Throughout August, 1.73" (44mm) of precipitation is accumulated.

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

In August, the average day length is 12h and 45min.

When is the sunrise / sunset in August in Naalehu?

In August, on the first day of the month, sunrise is at 5:59 am and sunset at 6:57 pm. On the last day of the month, sunrise is at 6:07 am and sunset at 6:37 pm HST.

How many hours of sunshine does Naalehu have in August?

In August, the average sunshine duration is 8.7h.

What are the months with the highest UV index in Naalehu?

The months with the highest UV index are May through October, with an average maximum UV index of 6.

What is the UV index reading in August in Naalehu?

In August, the average daily maximum UV index in Naalehu, Hawaii, is 6. A UV Index reading of 6 to 7 represents a high health vulnerability 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
Naalehu, HI

Average temperature in August - Naalehu, HI
  • Average high temperature in August: 73.2°F

The warmest months (with the highest average high temperature) are August and October (73.2°F).
The month with the lowest average high temperature is February (68.9°F).

  • Average low temperature in August: 69.1°F

The month with the highest average low temperature is October (70°F).
The coldest month (with the lowest average low temperature) is March (64.8°F).

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Average pressure in August
Naalehu, HI

Average pressure in August - Naalehu, HI
  • Average pressure in August: 29.97"Hg

The month with the highest atmospheric pressure is April (30.04"Hg).
The months with the lowest atmospheric pressure are September and October (29.96"Hg).

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Average wind speed in August
Naalehu, HI

Average wind speed in August - Naalehu, HI
  • Average wind speed in August: 6.1mph

The windiest month (with the highest average wind speed) is May (6.3mph).
The calmest month (with the lowest average wind speed) is December (5.3mph).

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Average humidity in August
Naalehu, HI

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

The months with the highest relative humidity are June, July, August and September (81%).
The month with the lowest relative humidity is February (73%).

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Average rainfall in August
Naalehu, HI

Average rainfall in August - Naalehu, HI
  • Average rainfall in August: 1.73"

The wettest month (with the highest rainfall) is September (1.81").
The driest month (with the least rainfall) is January (0.75").

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Average rainfall days in August
Naalehu, HI

Average rainfall days in August - Naalehu, HI
  • Average rainfall days in August: 21.8 days

The month with the highest number of rainy days is August (21.8 days).
The month with the least rainy days is January (10.8 days).

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

Average daylight in August / Average sunshine in August - Naalehu, 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 4min

The month with the most sunshine is May (Average sunshine: 10h and 42min).
The months with the least sunshine are November and December (Average sunshine: 7h and 18min).

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Average sunshine days in August
Naalehu, HI

Average sunshine days in August - Naalehu, HI
  • Average sunshine days in August: 4 days

The month with the most sunshine days is January (12.7 days).
The month with the least sunshine days is May (3.2 days).

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Average UV index in August
Naalehu, HI

Average UV index in August - Naalehu, HI
  • Average UV index in August: 6

The months with the highest UV index are May, June, July, August, September and October (UV index 6).
The months with the lowest UV index are January, February, March, April, November and December (UV index 5).

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Average cloud cover in August
Naalehu, HI

Average cloud cover in August - Naalehu, HI
  • Average cloud cover in August: 28

The month with the most cloud cover is June (Cloud cover 31).
The month with the least cloud cover is January (Cloud cover 15).

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Average visibility in August
Naalehu, HI

Average visibility in August - Naalehu, 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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Naalehu, Hawaii, USA

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