July weather forecastCaptain Cook, HI
July
Weather in July
July, the same as June, in Captain Cook, Hawaii, is another pleasant summer month, with an average temperature varying between 73°F (22.8°C) and 69.1°F (20.6°C).Temperature
June's transformation into July witnesses an average high-temperature of a still agreeable 73°F (22.8°C), noting a minor change from the preceding month. Captain Cook registers an average low-temperature of 69.1°F (20.6°C) throughout July, a modest decrease from its daytime highs.Humidity
June through September, with an average relative humidity of 81%, are the most humid months.Rainfall
In July, the rain falls for 21.2 days. Throughout July, 1.38" (35mm) of precipitation is accumulated. In Captain Cook, during the entire year, the rain falls for 216.1 days and collects up to 16.57" (421mm) of precipitation.Daylight
The average length of the day in July is 13h and 10min.On the first day of the month, sunrise is at 5:49 am and sunset at 7:06 pm. On the last day of July, sunrise is at 5:59 am and sunset at 7:00 pm HST.
Sunshine
In Captain Cook, Hawaii, the average sunshine in July is 10.5h.UV index
The months with the highest UV index are May through October, with an average maximum UV index of 6. A UV Index value of 6 to 7 symbolizes a high threat to health from unprotected exposure to Sun's UV rays for average individuals.Note: The daily high UV index of 6 during July translates into the following recommendations:
Persist in precautions and follow sun safety policies. Keeping sunburn at bay is imperative. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in July
Captain Cook, HI
- Average high temperature in July: 73°F
The warmest months (with the highest average high temperature) are August and October (73.2°F).
The month with the lowest average high temperature is February (68.9°F).
- Average low temperature in July: 69.1°F
The month with the highest average low temperature is October (70°F).
The coldest month (with the lowest average low temperature) is March (64.8°F).
Average pressure in July
Captain Cook, HI
- Average pressure in July: 29.99"Hg
The month with the highest atmospheric pressure is April (30.04"Hg).
The months with the lowest atmospheric pressure are September and October (29.96"Hg).
Average wind speed in July
Captain Cook, HI
- Average wind speed in July: 5.8mph
The windiest month (with the highest average wind speed) is May (6.3mph).
The calmest month (with the lowest average wind speed) is December (5.3mph).
Average humidity in July
Captain Cook, HI
- Average humidity in July: 81%
The months with the highest relative humidity are June, July, August and September (81%).
The month with the lowest relative humidity is February (73%).
Average rainfall in July
Captain Cook, HI
- Average rainfall in July: 1.38"
The wettest month (with the highest rainfall) is September (1.81").
The driest month (with the least rainfall) is January (0.75").
Average rainfall days in July
Captain Cook, HI
- Average rainfall days in July: 21.2 days
The month with the highest number of rainy days is August (21.8 days).
The month with the least rainy days is January (10.8 days).
Average daylight in July /
Average sunshine in July
Captain Cook, HI
- Average daylight in July: 13h and 12min
The month with the longest days is June (Average daylight: 13h and 18min).
The month with the shortest days is December (Average daylight: 11h and 0min).
- Average sunshine in July: 10h and 30min
The month with the most sunshine is May (Average sunshine: 10h and 42min).
The months with the least sunshine are November and December (Average sunshine: 7h and 18min).
Average sunshine days in July
Captain Cook, HI
- Average sunshine days in July: 4.5 days
The month with the most sunshine days is January (12.7 days).
The month with the least sunshine days is May (3.2 days).
Average UV index in July
Captain Cook, HI
- Average UV index in July: 6
The months with the highest UV index are May, June, July, August, September and October (UV index 6).
The months with the lowest UV index are January, February, March, April, November and December (UV index 5).
Average cloud cover in July
Captain Cook, HI
- Average cloud cover in July: 30
The month with the most cloud cover is June (Cloud cover 31).
The month with the least cloud cover is January (Cloud cover 15).
Average visibility in July
Captain Cook, 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).





