July weather forecast
Aiea, HI

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Weather in July

July is undisputedly a summer month in Aiea where the climate reaches its warmest period. However, the Hawaiian respect for natural moderation ensures that 'warm' does not translate into 'uncomfortably hot.' Along with the extended daylight hours, the wind speed slightly increases, bringing the fresh ocean air inland. The most striking characteristic of July, however, is the highest sea temperature of the year, 79.1°F (26.2°C), turning the beaches into a haven for residents and tourists.

Temperature

The commencement of July records an average high-temperature of a still moderately hot 80.4°F (26.9°C), barely varying from June's 79.5°F (26.4°C). During July, Aiea perceives a slight decrease in temperature from daytime highs, settling at an average low of 75°F (23.9°C).

Humidity

The average relative humidity in July in Aiea is 75%.

Rainfall

July is the month with the least rainfall in Aiea. Rain falls for 16.4 days and accumulates 0.67" (17mm) of precipitation.

Ocean temperature

In Aiea, the average seawater temperature in July is 79.2°F (26.2°C).
Note: For engaging in any water activities, temperatures from 77°F (25°C) to 84.2°F (29°C) are viewed as outstanding and exceptionally pleasing for prolonged durations.

Daylight

The average length of the day in July in Aiea is 13h and 17min.
On the first day of July, sunrise is at 5:53 am and sunset at 7:18 pm. On the last day of the month, sunrise is at 6:05 am and sunset at 7:11 pm HST.

Sunshine

In July, the average sunshine in Aiea is 9.9h.

UV index

July through September, with an average maximum UV index of 7, are months with the highest UV index. A UV Index estimate of 6 to 7 represents a high health hazard from exposure to the Sun's UV rays for the ordinary person.
Note: A maximum daily UV index of 7 during July morphs into the following directions:
Adhere to precautions and respect sun safety doctrines. Avoiding sunburn is vital. Avoid direct Sun exposure and seek shade from 10 a.m. to 4 p.m., the period of highest UV radiation. Remember, however, that not all shade structures offer full protection. For minimizing sun-related eye damage, always choose sunglasses with UVA and UVB coverage. Notice! The Sun's UV exposure elevates with sand and water reflections.
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Frequently asked questions

What is the usual temperature for Aiea in July?

In Aiea, in July, the average high-temperature is 80.4°F (26.9°C), and the average low-temperature is 75°F (23.9°C).

What is the average humidity in July in Aiea?

The average relative humidity in July in Aiea is 75%.

What is the driest month in Aiea?

July is the month with the least rainfall in Aiea, Hawaii. Rain falls for 16.4 days and accumulates 0.67" (17mm) of precipitation.

How much does it rain in Aiea in July?

In July, in Aiea, Hawaii, the rain falls for 16.4 days. Throughout July, 0.67" (17mm) of precipitation is accumulated.

What is the ocean temperature in July in Aiea?

In Aiea, Hawaii, the average seawater temperature in July is 79.2°F (26.2°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 Aiea have in July?

The average day length in July in Aiea, Hawaii, is 13h and 17min.

When is the sunrise / sunset in July in Aiea?

In July, on the first day of the month, sunrise is at 5:53 am and sunset at 7:18 pm. On the last day of the month, in Aiea, Hawaii, sunrise is at 6:05 am and sunset at 7:11 pm HST.

How long on average sun shines in July in Aiea?

In July, the average sunshine duration is 9.9h.

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

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

What is the UV index reading in July in Aiea?

In Aiea, the average daily maximum UV index in July is 7. A UV Index estimate of 6 to 7 represents a high hazard to health from exposure to the Sun's UV radiation.

Average temperature in July
Aiea, HI

Average temperature in July - Aiea, HI
  • Average high temperature in July: 80.4°F

The warmest month (with the highest average high temperature) is September (81.5°F).
The months with the lowest average high temperature are February and March (75°F).

  • Average low temperature in July: 75°F

The month with the highest average low temperature is August (75.7°F).
The coldest month (with the lowest average low temperature) is February (69.1°F).

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Average pressure in July
Aiea, HI

Average pressure in July - Aiea, HI
  • Average pressure in July: 30.01"Hg

The month with the highest atmospheric pressure is April (30.06"Hg).
The months with the lowest atmospheric pressure are September and October (29.97"Hg).

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Average wind speed in July
Aiea, HI

Average wind speed in July - Aiea, HI
  • Average wind speed in July: 12.1mph

The windiest month (with the highest average wind speed) is July (12.1mph).
The calmest month (with the lowest average wind speed) is January (9mph).

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Average humidity in July
Aiea, HI

Average humidity in July - Aiea, HI
  • Average humidity in July: 75%

The months with the highest relative humidity are February and December (76%).
The months with the lowest relative humidity are April, May, September and November (74%).

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Average rainfall in July
Aiea, HI

Average rainfall in July - Aiea, HI
  • Average rainfall in July: 0.67"

The wettest months (with the highest rainfall) are March and October (1.81").
The driest month (with the least rainfall) is July (0.67").

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Average rainfall days in July
Aiea, HI

Average rainfall days in July - Aiea, HI
  • Average rainfall days in July: 16.4 days

The months with the highest number of rainy days are March and October (18 days).
The month with the least rainy days is January (12.6 days).

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Average sea temperature in July
Aiea, HI

Average sea temperature in July - Aiea, HI
  • Average sea temperature in July: 79.1°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 (75.7°F).

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

Average daylight in July / Average sunshine in July - Aiea, HI
  • Average daylight in July: 13h and 2min

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 July: 9h and 5min

The month with the most sunshine is June (Average sunshine: 10h and 48min).
The months with the least sunshine are November and December (Average sunshine: 6h and 30min).

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Average sunshine days in July
Aiea, HI

Average sunshine days in July - Aiea, HI
  • Average sunshine days in July: 8.8 days

The month with the most sunshine days is January (12.8 days).
The month with the least sunshine days is October (6.3 days).

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Average UV index in July
Aiea, HI

Average UV index in July - Aiea, HI
  • Average UV index in July: 7

The months with the highest UV index are July, August and September (UV index 7).
The months with the lowest UV index are January, February, March, April, May, June, October, November and December (UV index 6).

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Average cloud cover in July
Aiea, HI

Average cloud cover in July - Aiea, HI
  • Average cloud cover in July: 35

The month with the most cloud cover is March (Cloud cover 40).
The months with the least cloud cover are January and September (Cloud cover 33).

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Average visibility in July
Aiea, HI

Average visibility in July - Aiea, 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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Aiea, Hawaii, USA

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