July weather forecast
Waimalu, HI

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Weather in July

July in Waimalu is noted for its tropical summer luster with consistent temperature readings. Despite the steady heat, life in this Hawaiian city is remarkably pleasant due to the moderated wind and relative humidity. Intermittent rains escort an invigorating burst of freshness while the daylight of 13.3 hours ensures adequate sun exposure for residents. Waimalu embarks on an airborne ride with a noticeable top wind speed of 11.7mph (18.8km/h) during this month. As the city transitions from June to July, the epoch gifts a well-adjusted climate ecology, offering an optimum blend of sun and showers through the days.

Temperature

As Waimalu transitions into July, the average high-temperature stands at a still moderately hot 81.1°F (27.3°C), offering little variation from the preceding month. Waimalu's nights in July maintain a consistent average of 74.5°F (23.6°C), demonstrating a minimal differential from its daytime temperature.

Heat index

For July, the heat index is calculated to be a tropical 86°F (30°C). Exhaustion might be the outcome of enduring exposure and continuous activity, with a risk of heat cramps.
Evaluating the heat index requires understanding its values in the shade and with gentle winds. With exposure to direct sunlight, the heat index may be increased by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'feels like', provides an understanding of perceived warmth by combining temperature and relative humidity. The individual's temperature perception can be influenced by numerous factors such as metabolic variations, physical activity, and clothing. Recognize that direct exposure to the sun can escalate the heat effect, potentially adding 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values are particularly meaningful for babies and toddlers. Young ones are generally more prone to risk than adults due to their reduced ability to sweat. Their large skin surface area relative to their diminutive bodies and elevated heat production from their activities further enhance this risk.

Humidity

The average relative humidity in July is 75%.

Rainfall

July is the month with the least rainfall. Rain falls for 16.4 days and accumulates 0.71" (18mm) of precipitation.

Ocean temperature

In Waimalu, in July, the average water temperature is 78.8°F (26°C).
Note: For engaging in water activities including swimming and diving, temperatures from 77°F (25°C) to 84.2°F (29°C) are perceived as perfect, providing pleasure for extended durations.

Daylight

In July, the average length of the day 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

The average sunshine in July is 9.3h.

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 reading of 6 to 7 represents a high threat to health from exposure to the Sun's UV rays for ordinary individuals.
Note: The maximum UV index, 6 during July, leads to the following recommendations:
Persist with safeguards and heed sun safety doctrines. Keeping sunburn at bay is of prime importance. The Sun's UV radiation is most potent between 10 a.m. and 4 p.m. Try to limit direct exposure to the Sun during this period. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays. Alert! UV radiation becomes sharper due to reflections from sand and water.
Updated: Aug 23, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the temperature in July?

July temperatures vary between a high-temperature of 81.1°F (27.3°C) and a low-temperature of 74.5°F (23.6°C). In July, the average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which takes the relative humidity and factors it into the air temperature reading, is calculated to be 86°F (30°C).

What is the average humidity in July?

In July, the average relative humidity is 75%.

What is the driest month?

The month with the least rainfall is July, when the rain falls for 16.4 days and typically collects 0.71" (18mm) of precipitation.

How many days does it rain in July?

In Waimalu, in July, it is raining for 16.4 days, with typically 0.71" (18mm) of accumulated precipitation.

What is the ocean temperature in July in Waimalu?

In Waimalu, the average seawater temperature in July is 78.8°F (26°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 Waimalu have in July?

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

When is the sunrise / sunset in July?

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.

How many hours of sunshine does Waimalu have in July?

In Waimalu, the average sunshine duration in July is 9.3h.

What are the months with the lowest UV index?

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

How high is the UV index in July?

In Waimalu, the average daily maximum UV index in July is 6. A UV Index reading of 6 to 7 represents a high health vulnerability from unsafe 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 July
Waimalu, HI

Average temperature in July - Waimalu, HI
  • Average high temperature in July: 81.1°F

The warmest months (with the highest average high temperature) are August and September (82°F).
The months with the lowest average high temperature are February and March (75.4°F).

  • Average low temperature in July: 74.5°F

The month with the highest average low temperature is September (75°F).
The coldest month (with the lowest average low temperature) is February (68°F).

Average pressure in July
Waimalu, HI

Average pressure in July - Waimalu, 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).

Average wind speed in July
Waimalu, HI

Average wind speed in July - Waimalu, HI
  • Average wind speed in July: 11.3mph

The windiest month (with the highest average wind speed) is July (11.3mph).
The calmest month (with the lowest average wind speed) is January (8.4mph).

Average humidity in July
Waimalu, HI

Average humidity in July - Waimalu, 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, June and September (74%).

Average rainfall in July
Waimalu, HI

Average rainfall in July - Waimalu, HI
  • Average rainfall in July: 0.71"

The wettest month (with the highest rainfall) is October (2.09").
The driest month (with the least rainfall) is July (0.71").

Average rainfall days in July
Waimalu, HI

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

The month with the highest number of rainy days is March (20 days).
The month with the least rainy days is January (13.5 days).

Average sea temperature in July
Waimalu, HI

Average sea temperature in July - Waimalu, HI
  • Average sea temperature in July: 79°F

The best months for swimming (with the highest average sea temperature) are August, September and October (81°F).
The coldest months (with the lowest average sea temperature) are January, February, March and April (75°F).

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

Average daylight in July / Average sunshine in July - Waimalu, 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 2min

The month with the most sunshine is June (Average sunshine: 9h and 54min).
The months with the least sunshine are November and December (Average sunshine: 6h and 18min).

Average sunshine days in July
Waimalu, HI

Average sunshine days in July - Waimalu, HI
  • Average sunshine days in July: 9.8 days

The month with the most sunshine days is January (12.3 days).
The month with the least sunshine days is November (6.2 days).

Average UV index in July
Waimalu, HI

Average UV index in July - Waimalu, 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).

Average cloud cover in July
Waimalu, HI

Average cloud cover in July - Waimalu, HI
  • Average cloud cover in July: 40

The month with the most cloud cover is March (Cloud cover 44).
The month with the least cloud cover is January (Cloud cover 36).

Average visibility in July
Waimalu, HI

Average visibility in July - Waimalu, 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).

Waimalu, Hawaii, USA

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