Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
Weather in September
Temperature
As Glen Arbor, California, steps into September, the average high-temperature is measured at a still warm 74.5°F (23.6°C), displaying minor differences from August's 74.8°F (23.8°C). The nighttime temperature dips to a moderate 55.4°F (13°C) on average during September.Humidity
In September, the average relative humidity is 69%.Rainfall
In Glen Arbor, during September, the rain falls for 2.9 days and regularly aggregates up to 0.12" (3mm) of precipitation. Throughout the year, there are 72.5 rainfall days, and 13.58" (345mm) of precipitation is accumulated.Daylight
In September, the average length of the day in Glen Arbor, California, is 12h and 24min.On the first day of September, sunrise is at 6:39 am and sunset at 7:36 pm. On the last day of the month, sunrise is at 7:03 am and sunset at 6:52 pm PDT.
Sunshine
In September, the average sunshine in Glen Arbor is 10.9h.UV index
The months with the highest UV index in Glen Arbor are June through October, with an average maximum UV index of 5. A UV Index value of 3 to 5 symbolizes a moderate threat to health from unsafe exposure to UV radiation for ordinary individuals.Note: The maximum daily UV index of 5 in September converts into the following recommendations:
Put precautions into practice - Ensuring skin and eye safety is a necessity. To protect against the Sun's most potent rays, avoid direct exposure around midday. Opt for tightly woven and loose clothing to enhance protection from the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are September temperatures in Glen Arbor?
What is the average humidity in September in Glen Arbor?
How many days does it rain in September in Glen Arbor?
What is the average length of the day in September in Glen Arbor?
When is the sunrise / sunset in September in Glen Arbor?
How long on average sun shines in September in Glen Arbor?
When is the highest UV index in Glen Arbor?
How high is the UV index in September in Glen Arbor?
Average temperature in September
Glen Arbor, CA
- Average high temperature in September: 74.5°F
The warmest month (with the highest average high temperature) is August (74.8°F).
The month with the lowest average high temperature is December (57°F).
- Average low temperature in September: 55.4°F
The month with the highest average low temperature is September (55.4°F).
The coldest month (with the lowest average low temperature) is February (45.1°F).
Average pressure in September
Glen Arbor, CA
- Average pressure in September: 29.92"Hg
The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is September (29.92"Hg).
Average wind speed in September
Glen Arbor, CA
- Average wind speed in September: 5.4mph
The windiest month (with the highest average wind speed) is April (7.1mph).
The calmest month (with the lowest average wind speed) is August (5.2mph).
Average humidity in September
Glen Arbor, CA
- Average humidity in September: 69%
The month with the highest relative humidity is March (75%).
The month with the lowest relative humidity is October (67%).
Average rainfall in September
Glen Arbor, CA
- Average rainfall in September: 0.12"
The wettest month (with the highest rainfall) is February (2.6").
The driest months (with the least rainfall) are July and August (0.04").
Average rainfall days in September
Glen Arbor, CA
- Average rainfall days in September: 2.9 days
The month with the highest number of rainy days is March (12.8 days).
The month with the least rainy days is August (0.8 days).
Average daylight in September /
Average sunshine in September
Glen Arbor, CA
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 42min).
- Average sunshine in September: 10h and 5min
The month with the most sunshine is July (Average sunshine: 11h and 54min).
The month with the least sunshine is December (Average sunshine: 5h and 48min).
Average sunshine days in September
Glen Arbor, CA
- Average sunshine days in September: 26 days
The month with the most sunshine days is August (28.9 days).
The month with the least sunshine days is March (17.5 days).
Average UV index in September
Glen Arbor, CA
- Average UV index in September: 5
The months with the highest UV index are June, July, August, September and October (UV index 5).
The months with the lowest UV index are February, November and December (UV index 3).
Average cloud cover in September
Glen Arbor, CA
- Average cloud cover in September: 14
The month with the most cloud cover is March (Cloud cover 37).
The month with the least cloud cover is July (Cloud cover 12).
Average visibility in September
Glen Arbor, CA
- Average visibility in September: 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).
Glen Arbor, California, USA
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