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
September's arrival subtly correlates with a reduction in the average high-temperature, down from 93.4°F (34.1°C) in August to a still tropical 86.9°F (30.5°C). September brings Sky Valley a consistent average low-temperature of 67.1°F (19.5°C).Humidity
In September, the average relative humidity in Sky Valley is 29%.Rainfall
In Sky Valley, during September, the rain falls for 3 days and regularly aggregates up to 0.24" (6mm) of precipitation. In Sky Valley, during the entire year, the rain falls for 36.2 days and collects up to 3.27" (83mm) of precipitation.Daylight
The average length of the day in September is 12h and 22min.On the first day of September in Sky Valley, sunrise is at 6:19 am and sunset at 7:10 pm. On the last day of the month, sunrise is at 6:39 am and sunset at 6:30 pm PDT.
Sunshine
In September, the average sunshine in Sky Valley is 10.5h.UV index
In Sky Valley, the average daily maximum UV index in September is 6. A UV Index estimate of 6 to 7 represents a high health risk from unprotected exposure to Sun's UV rays for average individuals.Note: The daily maximum UV index of 6 in September interprets into the following advice:
Take precautions and utilize sun safety practices. Protection against skin and eye damage is required. Stay in the shade and avoid direct Sun exposure from 10 a.m. to 4 p.m., a period when UV radiation is particularly strong, noting that parasols or canopies may not offer total sun protection. Outfit yourself in sun-safe attire, like long sleeves, pants, a hat, and UV-blocking sunglasses.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Is it hot in Sky Valley during September?
What is the average humidity in September in Sky Valley?
How many days does it rain in September in Sky Valley?
What is the average length of the day in September in Sky Valley?
When are sunrise and sunset in September in Sky Valley?
How long on average sun shines in September in Sky Valley?
What is the UV index intensity in September in Sky Valley?
Average temperature in September
Sky Valley, CA
- Average high temperature in September: 86.9°F
The warmest month (with the highest average high temperature) is July (93.7°F).
The month with the lowest average high temperature is December (56.8°F).
- Average low temperature in September: 67.1°F
The month with the highest average low temperature is August (72.1°F).
The coldest month (with the lowest average low temperature) is December (42.1°F).
Average pressure in September
Sky Valley, CA
- Average pressure in September: 29.84"Hg
The month with the highest atmospheric pressure is January (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.8"Hg).
Average wind speed in September
Sky Valley, CA
- Average wind speed in September: 7.2mph
The windiest month (with the highest average wind speed) is May (9.4mph).
The calmest month (with the lowest average wind speed) is January (6.8mph).
Average humidity in September
Sky Valley, CA
- Average humidity in September: 29%
The month with the highest relative humidity is December (46%).
The month with the lowest relative humidity is August (25%).
Average rainfall in September
Sky Valley, CA
- Average rainfall in September: 0.24"
The wettest month (with the highest rainfall) is December (0.55").
The driest month (with the least rainfall) is June (0.04").
Average rainfall days in September
Sky Valley, CA
- Average rainfall days in September: 3 days
The month with the highest number of rainy days is July (5.3 days).
The month with the least rainy days is June (0.7 days).
Average daylight in September /
Average sunshine in September
Sky Valley, CA
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 24min).
The month with the shortest days is December (Average daylight: 9h and 54min).
- Average sunshine in September: 10h and 3min
The month with the most sunshine is June (Average sunshine: 12h and 6min).
The month with the least sunshine is December (Average sunshine: 7h and 0min).
Average sunshine days in September
Sky Valley, CA
- Average sunshine days in September: 23.7 days
The month with the most sunshine days is October (28.7 days).
The month with the least sunshine days is July (21.4 days).
Average UV index in September
Sky Valley, CA
- Average UV index in September: 6
The month with the highest UV index is July (UV index 8).
The month with the lowest UV index is December (UV index 3).
Average cloud cover in September
Sky Valley, CA
- Average cloud cover in September: 6
The month with the most cloud cover is December (Cloud cover 20).
The month with the least cloud cover is June (Cloud cover 5).
Average visibility in September
Sky Valley, 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).
Sky Valley, California, USA
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