Over the course of September in Honolulu, the length of the day is decreasing. From the start to the end of the month, the length of the day decreases by 35 minutes, implying an average daily decrease of 1 minute, 12 seconds, and weekly decrease of 8 minutes, 25 seconds.
https://weatherspark.com/m/139/9/Average-Weather-in-September-in-Honolulu-Hawaii-United-States
Average monthly weather in Honolulu, Hawaii. Honolulu experiences a mostly dry summer season. It’s summer between months May and October and becomes winter between October and April. The best time to visit Honolulu is from September to November when temperatures are mild. Annual average rainfall is 433 mm (17.05 inches), it mainly rains during the winter months.
https://weather-and-climate.com/average-monthly-Rainfall-Temperature-Sunshine,Honolulu,Hawaii
Climate Honolulu - Hawaii. °C | °F. Climate data for honolulu intl ap 703, Longitude: -157.929, Latitude: 21.3239. Average weather Honolulu, HI - 96819 - 1981-2010 normals. Jan: January, Feb: February, Mar: March, Apr: April, May: May, Jun: June, Jul: July, Aug: August, Sep: September, Oct: October, Nov: November, Dec: December.
http://www.usclimatedata.com/climate/honolulu/hawaii/united-states/ushi0026
Averages are for Honolulu International Airport, which is 4 miles from Honolulu.
https://www.timeanddate.com/weather/usa/honolulu/climate
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https://www.wunderground.com/history/airport/PHNL/2014/3/4/DailyHistory.html
Average Weather in September in Honolulu Hawaii, United States. In Honolulu, the month of September is characterized by essentially constant daily high temperatures, with daily highs around 87°F throughout the month, rarely exceeding 89°F or dropping below 84°F. Daily low temperatures are around 76°F, rarely falling below 73°F or exceeding 78°F.
https://weatherspark.com/m/139/9/Average-Weather-in-September-in-Honolulu-Hawaii-United-States
Honolulu: Annual Weather Averages. The most daily sunshine hours in Honolulu are 11 in July. The wettest month is January with an average of 61.2mm of rain. The best month to swim in the sea is in August when the average sea temperature is 27°C (81°F). Average High/Low Temperature: Honolulu. Loading weather data.
http://www.holiday-weather.com/honolulu/averages/
For more information, see the weather forecast and our average climate infomation (by month in graphs) below. * Data from nearest weather station: Honolulu, Hawaii (0.0 KM).
https://weather-and-climate.com/average-monthly-Rainfall-Temperature-Sunshine,Honolulu,Hawaii
The temperature range for Honolulu on the southeastern coast of Oahu in September is 73ºF (low) to 88ºF (high). Honolulu and adjacent areas average 1.02 inches of rainfall in September. The average wind speed is 11.2 mph. September humidity averages 69%. Pacific water (sea surface) temperature averages 81ºF.
http://www.goin2travel.com/oahu-hawaii-september-weather-and-activities
Days of Hot Weather in Honolulu. Over half the days from December to March in Honolulu have temperatures reaching at least 80 degrees Fahrenheit. Most nights then cool down to below 70, but no less than 50 degrees. Indeed only six nights a year on average have a low temperature cooler than 60. From May to October in Honolulu, daytime highs are consistently above 79 °F, and occasionally get into the 90s. Ninety-degree weather is mostly likely to happen in August and September. Seldom then do the nights have temperatures lower than 70 degrees. Days per month in Honolulu of at least 80 or 90 °F.
https://www.currentresults.com/Weather/Hawaii/Places/honolulu-temperature-averages-by-month.php
average weather in honolulu in september
The average weather in Honolulu in September ranges from 73ºF low to 88ºF high. The average weather in Honolulu in September is between 73ºF, which is lowest to 88ºF, which is highest.