Waimalu
Hawaii, USA
Long-term weather forecast
Long-term weather forecast

July weather forecast and climate
Waimalu, HI

July, the same as June, is another warm summer month in Waimalu, Hawaii, with temperature in the range of an average low of 74.5°F (23.6°C) and an average high of 81.1°F (27.3°C).

Temperature

In Waimalu, the average high-temperature in July is essentially the same as in June - a still moderately hot 81.1°F (27.3°C). In July, in Waimalu, Hawaii, the average low-temperature is 74.5°F (23.6°C).

Heat index

In July, the average heat index is evaluated at 85.8°F (29.9°C). Constant exposure and activity lead to possible fatigue. Prolonged exercise may result in heat cramps.
Take into consideration that the heat index values are calculated for shade and light wind conditions. Exposure to direct sunshine can increase heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature', 'apparent temperature', 'feels like', or 'real feel', is a measure that combines both air temperature and relative humidity into a single value that indicates how hot the weather feels. Additional factors like activity, wind, clothing, and differences in body mass, height, and shape affect individual temperature impact. Be aware that direct exposure to sunlight increases heat impact, and may raise the heat index additionally, by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. Children are often less aware of the need to rest and re-hydrate. Thirst is a late sign of dehydration - it is vital to remain hydrated, particularly during prolonged physical activities.

Humidity

In Waimalu, the average relative humidity in July is 75%.

Rainfall

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

Ocean temperature

In Waimalu, the average seawater temperature is 78.8°F (26°C).
Note: For swimming, diving, and other water activities, temperatures between 77°F (25°C) and 84.2°F (29°C) are perceived as very enjoyable and pleasurable for prolonged periods without feeling uncomfortable.

Daylight

The average length of the day in Waimalu is 13.3h.

Sunshine

In July, the average sunshine in Waimalu 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 estimate of 6 to 7 represents a high health risk from the exposure to the Sun's UV radiation for average individuals.
Note: The average daily UV index of 6 transform into the following instructions:
Take precautions against overexposure. Fair-skinned people may get burned in less than 20 minutes. 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. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects. Beware! The reflection of water and sand dramatically increases exposure to the UV rays.

What is the temperature in July in Waimalu?

In July, the average high-temperature is 81.1°F (27.3°C), and the average low-temperature is 74.5°F (23.6°C). The average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), that combines relative humidity and air temperature, in July is appraised at 85.8°F (29.9°C).

What is the average humidity in July in Waimalu?

In July, the average relative humidity is 75%.

How much does it rain in Waimalu in July?

In July, the rain falls for 16.4 days. Throughout July, 0.71" (18mm) of precipitation is accumulated.

What is the driest month in Waimalu?

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

What is the water temperature in July in Waimalu?

In July, the average ocean temperature in Waimalu, Hawaii, 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?

In July, the average length of the day in Waimalu, Hawaii, is 13.3h.

How many hours of sunshine does Waimalu have in July?

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

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

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

What is the UV index intensity in July in Waimalu?

The average daily maximum UV index in July in Waimalu is 6. A UV Index of 6 to 7 symbolizes a high health risk from unprotected exposure to the UV radiation.
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).
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 humidity in July - Waimalu, HI
  • Average humidity in July: 75%

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

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: 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: 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: 13.3h

The month with the longest days is June (Average daylight: 13.4h).
The month with the shortest days is December (Average daylight: 10.8h).

  • Average sunshine in July: 9.3h

The month with the most sunshine is June (Average sunshine: 9.9h).
Months with the least sunshine are November and December (Average sunshine: 6.3).

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).
Months with the lowest UV index are January, February, March, April, May, June, July, August, October, November and December (UV index 6).