July weather forecastPoipu, HI
July
Weather in July
July stands out as the warmest month, with the highest maximum and minimum temperatures of 79°F (26.1°C) and 75°F (23.9°C) respectively. The city experiences a slight increase in humidity, providing a typical tropical feel. Despite the subtle variations in wind speed and daylight hours, the overall weather pattern supports an array of beach adventures. July also holds the record for the highest number of rainfall days, suggesting frequent but brief showers. The UV index follows a consistent pattern, underscoring the necessity for sun protection in the summer heat.Temperature
The ushering in of July brings an average high-temperature of a still moderately hot 79°F (26.1°C), closely mirroring the 78.3°F (25.7°C) of June. July witnesses a minor deviation from daytime peaks, with an average nighttime temperature of 75°F (23.9°C).Humidity
The months with the highest humidity are June through August, October and December, with an average relative humidity of 77%.Rainfall
In Poipu, in July, during 20.9 rainfall days, 1.77" (45mm) of precipitation is typically accumulated. Throughout the year, there are 218.4 rainfall days, and 22.13" (562mm) of precipitation is accumulated.Daylight
The average length of the day in July is 13h and 19min.On the first day of July, sunrise is at 5:58 am and sunset at 7:25 pm. On the last day of the month, sunrise is at 6:10 am and sunset at 7:17 pm HST.
Sunshine
In July, the average sunshine 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 estimate of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV rays for ordinary individuals.Note: The maximum daily UV index, 6 in July, converts into the following recommendations:
Incorporate safeguards and honour sun safety principles. Protection from skin and eye damage is obligatory. Attempt to stay under shade and limit exposure to the Sun between 10 a.m. and 4 p.m., when UV radiation is at its peak. Remember, devices such as parasols or canopies might not provide complete sun protection. During bright days, sunglasses that offer UVA and UVB defense are recommended.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in July
Poipu, 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
Poipu, 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
Poipu, 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
Poipu, 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
Poipu, 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
Poipu, 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
Poipu, 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 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
Poipu, 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
Poipu, 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
Poipu, 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
Poipu, 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).
