July weather forecast
Kapaa, HI

Weather in July

July, like June, in Kapaa, Hawaii, is another warm summer month, with temperature in the range of an average low of 75°F (23.9°C) and an average high of 79°F (26.1°C).

Temperature

In Kapaa, the average high-temperature in July is relatively the same as in June - a still moderately hot 79°F (26.1°C). The average low-temperature, in July, is 75°F (23.9°C).

Humidity

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

Rainfall

In Kapaa, it is raining for 20.9 days, with typically 1.77" (45mm) of accumulated precipitation. In Kapaa, during the entire year, the rain falls for 218.4 days and collects up to 22.13" (562mm) of precipitation.

Ocean temperature

In Kapaa, in July, the average water temperature is 78.8°F (26°C).
Note: For any water activity, surface water temperatures between 77°F (25°C) and 84.2°F (29°C) are considered as excellent and extremely pleasant for lengthened periods.

Daylight

In July, the average length of the day in Kapaa is 13h and 20min.
On the first day of the month, sunrise is at 5:57 am and sunset at 7:25 pm. On the last day of July, sunrise is at 6:09 am and sunset at 7:18 pm HST.

Sunshine

In July, the average sunshine in Kapaa is 8.6h.

UV index

January through August, October through December, with an average maximum UV index of 6, are months with the lowest UV index in Kapaa. A UV Index of 6 to 7 symbolizes a high health hazard from exposure to the Sun's UV radiation for average individuals.
Note: In July, the average maximum UV index of 6 translate into the following recommendations:
Take precautions and adopt sun safety practices. Protection against sunburn is obliged. 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. Caution! The reflection of sand and water significantly increases the intensity of the Sun's UV radiation.
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FAQ

What are the most humid months in Kapaa?

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

What is the average humidity in July in Kapaa?

In July, the average relative humidity in Kapaa, Hawaii, is 77%.

How much does it rain in Kapaa in July?

In Kapaa, Hawaii, in July, during 20.9 rainfall days, 1.77" (45mm) of precipitation is typically accumulated.

What is the ocean temperature in July in Kapaa?

In Kapaa, Hawaii, the average seawater temperature in July is 78.8°F (26°C). For any water activity, surface water temperatures between 77°F (25°C) and 84.2°F (29°C) are considered as excellent and extremely pleasant for lengthened periods.

How many hours of daylight does Kapaa have in July?

In Kapaa, Hawaii, the average day length in July is 13h and 20min.

When is the sunrise / sunset in July in Kapaa?

On the first day of July, sunrise is at 5:57 am and sunset at 7:25 pm. On the last day of the month, sunrise is at 6:09 am and sunset at 7:18 pm HST.

How many hours of sunshine does Kapaa have in July?

The average sunshine duration in July is 8.6h.

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

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

How high is the UV index in July in Kapaa?

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

Average temperature in July
Kapaa, HI

Average temperature in July - Kapaa, HI
  • Average high temperature in July: 79°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 July: 75°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 July
Kapaa, HI

Average pressure in July - Kapaa, HI
  • Average pressure in July: 30.02"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 July
Kapaa, HI

Average wind speed in July - Kapaa, HI
  • Average wind speed in July: 12.3mph

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 July
Kapaa, HI

Average humidity in July - Kapaa, HI
  • Average humidity in July: 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 July
Kapaa, HI

Average rainfall in July - Kapaa, HI
  • Average rainfall in July: 1.77"

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 July
Kapaa, HI

Average rainfall days in July - Kapaa, HI
  • Average rainfall days in July: 20.9 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 sea temperature in July
Kapaa, HI

Average sea temperature in July - Kapaa, HI
  • Average sea temperature in July: 78.7°F

The best month for swimming (with the highest average sea temperature) is September (80.2°F).
The coldest month (with the lowest average sea temperature) is March (74.8°F).

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Average daylight in July /
Average sunshine in July
Kapaa, HI

Average daylight in July / Average sunshine in July - Kapaa, HI
  • Average daylight in July: 13h and 20min

The month with the longest days is June (Average daylight: 13h and 28min).
The month with the shortest days is December (Average daylight: 10h and 49min).

  • Average sunshine in July: 8h and 36min

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 July
Kapaa, HI

Average sunshine days in July - Kapaa, HI
  • Average sunshine days in July: 3.9 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 July
Kapaa, HI

Average UV index in July - Kapaa, HI
  • Average UV index in July: 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 July
Kapaa, HI

Average cloud cover in July - Kapaa, HI
  • Average cloud cover in July: 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 July
Kapaa, HI

Average visibility in July - Kapaa, HI
  • Average visibility in July: 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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