Contents
- Weather in July
- Frequently asked questions
- Average temperature in July
- Average pressure in July
- Average wind speed in July
- Average humidity in July
- Average rainfall in July
- Average rainfall days in July
- Average sea temperature in July
- Average daylight in July
- Average sunshine in July
- Average sunshine days in July
- Average UV index in July
- Average cloud cover in July
- Average visibility in July
Weather in July
Temperature
Waialua records a slight change with July's average high-temperatures adjusting to a still warm 80.8°F (27.1°C) from June's 79.9°F (26.6°C). Waialua's nighttime temperature in July experiences a slight dip from daytime highs, falling to an average of 75.2°F (24°C).Heat index
The heat index for July is evaluated at 84.2°F (29°C). With unrelenting exposure and activity, one might experience exhaustion, leading to potential heat cramps.Understanding the heat index involves considering values for shaded locales with light wind. Exposure to the direct sun could elevate the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'feels like', is an indicator that blends the effects of temperature and humidity to depict perceived warmth. The impact of weather is individual, with diverse individuals experiencing it differently due to variations in body mass, height, and activity levels. Understand that direct sun rays can influence the weather's impact, leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical for babies and toddlers. Youngsters often neglect the necessity for rest and hydration. Thirst is a sign of advancing dehydration - thus the importance of maintaining hydration, specifically during long-lasting physical activities.
Humidity
The average relative humidity in July is 75%.Rainfall
The month with the least rainfall is July, when the rain falls for 16.6 days and typically collects 0.63" (16mm) of precipitation.Ocean temperature
In Waialua, the average seawater temperature in July is 78.6°F (25.9°C).Note: For swimming, diving, and various water activities, the temperatures ranging from 77°F (25°C) to 84.2°F (29°C) are seen as highly enjoyable and comfortable for extended durations without any discomfort.
Daylight
In July, the average length of the day is 13h and 18min.On the first day of July in Waialua, sunrise is at 5:53 am and sunset at 7:19 pm. On the last day of the month, sunrise is at 6:05 am and sunset at 7:12 pm HST.
Sunshine
In July, the average sunshine in Waialua is 9.2h.UV index
July and September, with an average maximum UV index of 7, are months with the highest UV index in Waialua. A UV Index value of 6 to 7 symbolizes a high health risk from unsafe exposure to UV radiation for average individuals.Note: The maximum UV index of 7 during July leads to these instructions:
Shield from overexposure. Defense against sun-related harm is required. Try to minimize direct Sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation. Also note that objects like parasols or canopies might not provide complete sun protection. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage. Be on guard! The reflective nature of sand and water boosts UV exposure.
Frequently asked questions
What are July temperatures in Waialua?
What is the average humidity in July in Waialua?
What is the driest month in Waialua?
How many days does it rain in July in Waialua?
How warm is the water in July in Waialua?
How many hours of daylight does Waialua have in July?
When is the sunrise / sunset in July in Waialua?
How many hours of sunshine does Waialua have in July?
What are the months with the highest UV index in Waialua?
What is the UV index reading in July in Waialua?
Average temperature in July
Waialua, HI
- Average high temperature in July: 80.8°F
The warmest month (with the highest average high temperature) is September (81.7°F).
The month with the lowest average high temperature is February (75°F).
- Average low temperature in July: 75.2°F
The months with the highest average low temperature are August and September (75.7°F).
The coldest month (with the lowest average low temperature) is February (68.5°F).
Average pressure in July
Waialua, HI
- Average pressure in July: 30.01"Hg
The month with the highest atmospheric pressure is April (30.06"Hg).
The month with the lowest atmospheric pressure is October (29.97"Hg).
Average wind speed in July
Waialua, HI
- Average wind speed in July: 11.6mph
The windiest month (with the highest average wind speed) is July (11.6mph).
The calmest month (with the lowest average wind speed) is January (9mph).
Average humidity in July
Waialua, 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 May and September (74%).
Average rainfall in July
Waialua, HI
- Average rainfall in July: 0.63"
The wettest months (with the highest rainfall) are February and October (1.34").
The driest month (with the least rainfall) is July (0.63").
Average rainfall days in July
Waialua, HI
- Average rainfall days in July: 16.6 days
The month with the highest number of rainy days is March (17.7 days).
The month with the least rainy days is January (12.5 days).
Average sea temperature in July
Waialua, 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 (75.2°F).
Average daylight in July /
Average sunshine in July
Waialua, 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 48min).
- Average sunshine in July: 9h and 1min
The month with the most sunshine is June (Average sunshine: 9h and 54min).
The month with the least sunshine is November (Average sunshine: 6h and 12min).
Average sunshine days in July
Waialua, HI
- Average sunshine days in July: 6.8 days
The month with the most sunshine days is January (12.9 days).
The month with the least sunshine days is September (6.5 days).
Average UV index in July
Waialua, HI
- Average UV index in July: 7
The months with the highest UV index are July and September (UV index 7).
The months with the lowest UV index are January, February, March, April, May, June, August, October, November and December (UV index 6).
Average cloud cover in July
Waialua, HI
- Average cloud cover in July: 41
The month with the most cloud cover is March (Cloud cover 44).
The months with the least cloud cover are January and September (Cloud cover 37).
Average visibility in July
Waialua, 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).
Waialua, Hawaii, USA
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