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 snowfall in September
- Average snowfall 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 sees a slight reduction in average high-temperature, with a shift from a warm 75.7°F (24.3°C) in August to an agreeable 69.3°F (20.7°C). The month of September sees a significant daily temperature drop, recording an average low-temperature of 43.7°F (6.5°C).Humidity
The average relative humidity in September is 44%.Rainfall
In Carnelian Bay, in September, during 1.8 rainfall days, 0.2" (5mm) of precipitation is typically accumulated. Throughout the year, there are 46.9 rainfall days, and 17.28" (439mm) of precipitation is accumulated.Snowfall
January through June, September through December are months with snowfall. September is the first month it typically snows. Throughout September, in the average 0.3 snowfall days, it receives 0.08" (2mm) of snow. In Carnelian Bay, California, during the entire year, snow falls for 65.4 days and aggregates up to 93.39" (2372mm) of snow.Daylight
The average length of the day in September is 12h and 26min.On the first day of September, sunrise is at 6:29 am and sunset at 7:30 pm. On the last day of the month, sunrise is at 6:56 am and sunset at 6:43 pm PDT.
Sunshine
In Carnelian Bay, California, the average sunshine in September is 11.2h.UV index
In Carnelian Bay, the average daily maximum UV index in September is 3. A UV Index estimate of 3 to 5 represents a moderate threat to health from unprotected exposure to Sun's UV rays for the average person.Note: During September, 3 as the daily maximum UV index converts into the following advice:
Put precautions into practice - Ensuring skin and eye safety is a necessity. Avoiding direct sunlight during midday hours helps reduce the risk from intense UV radiation. For a sun-safe wardrobe, go for clothes that are tightly woven and generously sized. Be prepared! The intensity of the Sun's UV radiation can be amplified nearly double due to snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Carnelian Bay in September?
What is the average humidity in September?
How many days does it rain in September?
When does it start snowing?
What is the average length of the day in September?
When are sunrise and sunset in September?
How many hours of sunshine does Carnelian Bay have in September?
How high is the UV index in September in Carnelian Bay?
Average temperature in September
Carnelian Bay, CA
- Average high temperature in September: 69.3°F
The warmest month (with the highest average high temperature) is July (76.5°F).
The month with the lowest average high temperature is December (36.5°F).
- Average low temperature in September: 43.7°F
The month with the highest average low temperature is July (48.7°F).
The coldest month (with the lowest average low temperature) is December (21.4°F).
Average pressure in September
Carnelian Bay, CA
- Average pressure in September: 29.94"Hg
The month with the highest atmospheric pressure is January (30.18"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).
Average wind speed in September
Carnelian Bay, CA
- Average wind speed in September: 5.7mph
The windiest month (with the highest average wind speed) is March (7.3mph).
The calmest month (with the lowest average wind speed) is August (5.3mph).
Average humidity in September
Carnelian Bay, CA
- Average humidity in September: 44%
The month with the highest relative humidity is March (79%).
The month with the lowest relative humidity is August (39%).
Average rainfall in September
Carnelian Bay, CA
- Average rainfall in September: 0.2"
The wettest month (with the highest rainfall) is February (3.35").
The driest months (with the least rainfall) are June and August (0.12").
Average rainfall days in September
Carnelian Bay, CA
- Average rainfall days in September: 1.8 days
The month with the highest number of rainy days is March (6.5 days).
The month with the least rainy days is September (1.8 days).
Average snowfall in September
Carnelian Bay, CA
- Average snowfall in September: 0.08"
The month with the highest snowfall is March (20.63").
The months with the least snowfall are July and August (0").
Average snowfall days in September
Carnelian Bay, CA
- Average snowfall days in September: 0.3 days
The month with the highest number of snowfall days is March (13.3 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in September /
Average sunshine in September
Carnelian Bay, CA
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 30min).
- Average sunshine in September: 11h and 1min
The month with the most sunshine is July (Average sunshine: 12h and 6min).
The month with the least sunshine is December (Average sunshine: 5h and 42min).
Average sunshine days in September
Carnelian Bay, CA
- Average sunshine days in September: 28 days
The month with the most sunshine days is September (28 days).
The month with the least sunshine days is March (15.2 days).
Average UV index in September
Carnelian Bay, CA
- Average UV index in September: 3
The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January, February, March, November and December (UV index 2).
Average cloud cover in September
Carnelian Bay, CA
- Average cloud cover in September: 9
The month with the most cloud cover is March (Cloud cover 39).
The month with the least cloud cover is July (Cloud cover 7).
Average visibility in September
Carnelian Bay, CA
- Average visibility in September: 6mi
The months with the highest visibility are April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January, February, March and December (5mi).
Carnelian Bay, California, USA
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