July weather forecastWahiawa, HI

July

Weather in July

July experiences a further increase in temperature, making it the perfect month to immerse in Wahiawa's beach culture. The warm Hawaiian sun coupled with an adequate breeze creates an ideal summer weather. A lesser need for a jacket comes as days and nights grow warmer, and summer outfits rule the city's fashion trends. A dip in the sea becomes more appealing during this period. In July, the temperature reaches its apex at 81.1°F (27.3°C), reinforcing the dominance of summer.

Temperature

Entering July, the average high-temperature is recorded at a still warm 81.1°F (27.3°C), exhibiting a minimal shift from June's 80.1°F (26.7°C). July introduces a small decrease to a nighttime average of 73.6°F (23.1°C).

Heat index

For most parts of July, the heat index is estimated at a tropical 86°F (30°C). Uninterrupted activity during exposure could lead to a sense of exhaustion, possibly causing heat cramps.
Heat index readings emphasize conditions of light breezes and shaded spots. Exposure to the direct sun might augment heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', is an indicator that blends the effects of temperature and humidity to depict perceived warmth. This effect is personal, shaped by the individual's physical activity and heat sensitivity, influenced by factors including wind, clothing, and metabolic variances. Keep in mind that direct sunshine exposure can amplify the weather's effects, possibly increasing the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values hold great significance to children. Younglings are generally more in peril than adults due to their reduced perspiration. Coupled with a larger skin surface relative to their tiny bodies and greater heat production because of their activity, they become more at risk.

Humidity

In July, the average relative humidity is 74%.

Rainfall

July is the month with the least rainfall. Rain falls for 22.7 days and accumulates 1.26" (32mm) of precipitation.

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

In July, the average sunshine is 8h.

UV index

The months with the highest UV index are March through November, with an average maximum UV index of 6. A UV Index of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV rays for average individuals.
Note: In July, a regular UV index of 6 translates into these guidelines:
Apply measures and align with sun safety principles. Safeguarding against skin and eye injury is pivotal. Make an effort to avoid direct sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation, and note that objects like parasols or canopies might not offer full 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.

Updated: Aug 27, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

The high-temperature, in July, in Wahiawa, is 81.1°F (27.3°C), while the low-temperature averages to 73.6°F (23.1°C). The average heat index (a.k.a. 'felt air temperature', 'real feel'), which factors the actual air temperature with the relative humidity, in July is estimated at 86°F (30°C).

The average relative humidity in July in Wahiawa is 74%.

July is the month with the least rainfall. Rain falls for 22.7 days and accumulates 1.26" (32mm) of precipitation.

In Wahiawa, during July, the rain falls for 22.7 days and regularly aggregates up to 1.26" (32mm) of precipitation.

In July, the average day length is 13h and 17min.

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, sunrise is at 6:05 am and sunset at 7:11 pm HST.

The average sunshine duration in July is 8h.

The months with the highest UV index are March through November, with an average maximum UV index of 6.

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

Today

Tomorrow

Long-term

Year J F M A M J July A S O N D

Jun

July

Aug

Average high temperature

80.1°F

81.1°F

82.6°F

Average low temperature

Average pressure

Average wind speed

Average max. wind speed

10.6mph

9.8mph

Average wind speed gusts

Average humidity

Average rainfall

Average rainfall days

Average daylight

Average sunshine

Average sunshine days

4.9

3.8

3.3

Average UV index

Average cloud cover

52%

51%

Average visibility

6mi

Average temperature in July
Wahiawa, HI

Average high temperature in July: 81.1°F

The warmest month (with the highest average high temperature) is August (82.6°F).
The month with the lowest average high temperature is February (75.6°F).

Average low temperature in July: 73.6°F

The month with the highest average low temperature is September (74.3°F).
The coldest month (with the lowest average low temperature) is February (66.7°F).

Average pressure in July
Wahiawa, 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
Wahiawa, HI

Average wind speed in July: 10.2mph

The windiest months (with the highest average wind speed) are June and July (10.2mph).
The calmest month (with the lowest average wind speed) is October (7.6mph).

Average humidity in July
Wahiawa, HI

Average humidity in July: 74%

The months with the highest relative humidity are February and December (77%).
The month with the lowest relative humidity is September (73%).

Average rainfall in July
Wahiawa, HI

Average rainfall in July: 1.26"

The wettest month (with the highest rainfall) is October (2.6").
The driest month (with the least rainfall) is July (1.26").

Average rainfall days in July
Wahiawa, HI

Average rainfall days in July: 22.7 days

The month with the highest number of rainy days is August (23.8 days).
The month with the least rainy days is January (16 days).

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

Average daylight in July: 13h and 18min

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: 8h and 0min

The month with the most sunshine is June (Average sunshine: 8h and 24min).
The month with the least sunshine is November (Average sunshine: 5h and 36min).

Average sunshine days in July
Wahiawa, HI

Average sunshine days in July: 3.8 days

The month with the most sunshine days is January (10.8 days).
The month with the least sunshine days is August (3.3 days).

Average UV index in July
Wahiawa, HI

Average UV index in July: 6

The months with the highest UV index are March, April, May, June, July, August, September, October and November (UV index 6).
The months with the lowest UV index are January, February and December (UV index 5).

Average cloud cover in July
Wahiawa, HI

Average cloud cover in July: 51

The month with the most cloud cover is June (Cloud cover 52).
The month with the least cloud cover is January (Cloud cover 43).

Average visibility in July
Wahiawa, 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).