Average Weather in September in Ojai California, United States
In Ojai, the month of September is characterized by gradually falling daily high temperatures, with daily highs decreasing by 4°F, from 83°F to 79°F over the course of the month, and rarely exceeding 88°F or dropping below 72°F.
Daily low temperatures decrease by 4°F, from 60°F to 56°F, rarely falling below 49°F or exceeding 65°F.
For reference, on August 2, the hottest day of the year, temperatures in Ojai typically range from 61°F to 84°F, while on December 25, the coldest day of the year, they range from 41°F to 62°F.
Average High and Low Temperature in September
The figure below shows you a compact characterization of the hourly average temperatures for the quarter of the year centered on September. The horizontal axis is the day, the vertical axis is the hour of the day, and the color is the average temperature for that hour and day.
Average Hourly Temperature in September
The month of September in Ojai experiences gradually increasing cloud cover, with the percentage of time that the sky is overcast or mostly cloudy increasing from 10% to 14%.
The clearest day of the month is September 5, with clear, mostly clear, or partly cloudy conditions 90% of the time.
For reference, on February 20, the cloudiest day of the year, the chance of overcast or mostly cloudy conditions is 47%, while on August 9, the clearest day of the year, the chance of clear, mostly clear, or partly cloudy skies is 90%.
Cloud Cover in September
A wet day is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. In Ojai, the chance of a wet day over the course of September is gradually increasing, starting the month at 1% and ending it at 3%.
For reference, the year's highest daily chance of a wet day is 22% on February 20, and its lowest chance is 0% on June 24.
Probability of Precipitation in September
The average sliding 31-day rainfall during September in Ojai is gradually increasing, starting the month at 0.1 inches, when it rarely exceeds 0.2 inches or falls below -0.0 inches, and ending the month at 0.3 inches, when it rarely exceeds 1.0 inches or falls below -0.0 inches.
Average Monthly Rainfall in September
Over the course of September in Ojai, the length of the day is rapidly decreasing. From the start to the end of the month, the length of the day decreases by 1 hour, 1 minute, implying an average daily decrease of 2 minutes, 7 seconds, and weekly decrease of 14 minutes, 50 seconds.
The shortest day of the month is September 30, with 11 hours, 51 minutes of daylight and the longest day is September 1, with 12 hours, 52 minutes of daylight.
Hours of Daylight and Twilight in September
The earliest sunrise of the month in Ojai is 6:30 AM on September 1 and the latest sunrise is 21 minutes later at 6:51 AM on September 30.
The latest sunset is 7:22 PM on September 1 and the earliest sunset is 41 minutes earlier at 6:41 PM on September 30.
Daylight saving time is observed in Ojai during 2017, but it neither starts nor ends during September, so the entire month is in daylight saving time.
For reference, on June 21, the longest day of the year, the Sun rises at 5:45 AM and sets 14 hours, 28 minutes later, at 8:12 PM, while on December 21, the shortest day of the year, it rises at 6:59 AM and sets 9 hours, 51 minutes later, at 4:50 PM.
Sunrise & Sunset with Twilight in September
The chance that a given day will be muggy in Ojai is essentially constant during September, remaining around 0% throughout.
For reference, on September 11, the muggiest day of the year, there are muggy conditions 0% of the time, while on January 1, the least muggy day of the year, there are muggy conditions 0% of the time.
Humidity Comfort Levels in September
The average hourly wind speed in Ojai is essentially constant during September, remaining within 0.1 miles per hour of 2.7 miles per hour throughout.
For reference, on December 10, the windiest day of the year, the daily average wind speed is 3.8 miles per hour, while on August 6, the calmest day of the year, the daily average wind speed is 2.5 miles per hour.
Average Wind Speed in September
Wind Direction in September
Ojai is located near a large body of water (e.g., ocean, sea, or large lake). This section reports on the wide-area average surface temperature of that water.
The average surface water temperature in Ojai is essentially constant during September, remaining around 65°F throughout.
The highest average surface water temperature during September is 66°F on September 2.
Average Water Temperature in September
The average daily incident shortwave solar energy in Ojai is decreasing during September, falling by 1.3 kWh, from 7.1 kWh to 5.8 kWh, over the course of the month.
Average Daily Incident Shortwave Solar Energy in September
For the purposes of this report, the geographical coordinates of Ojai are 34.448 deg latitude, -119.243 deg longitude, and 984 ft elevation.
The topography within 2 miles of Ojai contains very significant variations in elevation, with a maximum elevation change of 1,450 feet and an average elevation above sea level of 936 feet. Within 10 miles contains very significant variations in elevation (6,316 feet). Within 50 miles also contains extreme variations in elevation (8,819 feet).
The area within 2 miles of Ojai is covered by shrubs (56%), cropland (19%), artificial surfaces (14%), and grassland (11%), within 10 miles by shrubs (70%) and grassland (14%), and within 50 miles by shrubs (39%) and water (30%).
This report illustrates the typical weather in Ojai year round, based on a statistical analysis of historical hourly weather reports and model reconstructions from January 1, 1980 to December 31, 2016.
Temperature and Dew Point
There are 4 weather stations near enough to contribute to our estimation of the temperature and dew point in Ojai.
For each station, the records are corrected for the elevation difference between that station and Ojai according to the International Standard Atmosphere , and by the relative change present in the MERRA-2 satellite-era reanalysis between the two locations.
The estimated value at Ojai is computed as the weighted average of the individual contributions from each station, with weights proportional to the inverse of the distance between Ojai and a given station.
The stations contributing to this reconstruction are: Oxnard Airport (37%, 28 kilometers, south); Camarillo Airport (37%, 30 kilometers, southeast); Santa Barbara Municipal Airport (19%, 55 kilometers, west); and Sandberg (7%, 58 kilometers, northeast).
Time zones for aiports and weather stations are provided by AskGeo.com .