July weather forecastKoloa, HI
July
Weather in July
July, the same as June, is another warm summer month in Koloa, Hawaii, with an average temperature varying between 75°F (23.9°C) and 79°F (26.1°C).Temperature
Koloa records an average high-temperature of a still moderately hot 79°F (26.1°C) in July, closely mirroring the climate of the previous month. With a barely noticeable fluctuation in temperature, Koloa reaches an average low of 75°F (23.9°C) during the July nights.Humidity
June through August, October and December, with an average relative humidity of 77%, are the most humid months in Koloa.Rainfall
In Koloa, Hawaii, in July, during 20.9 rainfall days, 1.77" (45mm) of precipitation is typically accumulated. In Koloa, during the entire year, the rain falls for 218.4 days and collects up to 22.13" (562mm) of precipitation.Daylight
The average length of the day in July is 13h and 19min.On the first day of the month, sunrise is at 5:58 am and sunset at 7:25 pm. On the last day of July, in Koloa, sunrise is at 6:10 am and sunset at 7:18 pm HST.
Sunshine
In July, the average sunshine in Koloa is 8.6h.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 health risk from exposure to the Sun's UV radiation for the average person.Note: A daily high UV index of 6 in July leads to these guidelines:
Adopt measures and apply sun safety strategies. Shielding from skin and eye damage is necessary. Limit direct sun exposure and seek shade between 10 a.m. and 4 p.m., the time of the most intense UV radiation, noting that shade structures may not provide total sun protection. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in July
Koloa, HI
- Average high temperature in July: 79°F
The warmest month (with the highest average high temperature) is September (79.7°F).
The months with the lowest average high temperature are February and March (73.2°F).
- Average low temperature in July: 75°F
The month with the highest average low temperature is September (75.9°F).
The coldest month (with the lowest average low temperature) is February (68.5°F).
Average pressure in July
Koloa, HI
- Average pressure in July: 30.02"Hg
The month with the highest atmospheric pressure is April (30.07"Hg).
The months with the lowest atmospheric pressure are September and October (29.98"Hg).
Average wind speed in July
Koloa, HI
- Average wind speed in July: 12.3mph
The windiest month (with the highest average wind speed) is July (12.3mph).
The calmest month (with the lowest average wind speed) is January (10mph).
Average humidity in July
Koloa, HI
- Average humidity in July: 77%
The months with the highest relative humidity are June, July, August, October and December (77%).
The month with the lowest relative humidity is January (75%).
Average rainfall in July
Koloa, HI
- Average rainfall in July: 1.77"
The wettest month (with the highest rainfall) is March (2.52").
The driest month (with the least rainfall) is April (1.3").
Average rainfall days in July
Koloa, HI
- Average rainfall days in July: 20.9 days
The month with the highest number of rainy days is August (21.1 days).
The month with the least rainy days is January (12.5 days).
Average daylight in July /
Average sunshine in July
Koloa, HI
- Average daylight in July: 13h and 18min
The month with the longest days is June (Average daylight: 13h and 30min).
The month with the shortest days is December (Average daylight: 10h and 48min).
- Average sunshine in July: 8h and 36min
The month with the most sunshine is June (Average sunshine: 9h and 42min).
The month with the least sunshine is November (Average sunshine: 6h and 12min).
Average sunshine days in July
Koloa, HI
- Average sunshine days in July: 3.9 days
The month with the most sunshine days is January (12.8 days).
The month with the least sunshine days is August (2.9 days).
Average UV index in July
Koloa, 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
Koloa, HI
- Average cloud cover in July: 44
The month with the most cloud cover is March (Cloud cover 47).
The months with the least cloud cover are January and September (Cloud cover 38).
Average visibility in July
Koloa, 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).





