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 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 commences with an average high-temperature of a still tropical 88.5°F (31.4°C), showing little deviation from August's 93.4°F (34.1°C). September, marked by an average low-temperature of 58.8°F (14.9°C), indicates a large temperature drop from the daytime peak.Heat index
September's mean heat index is appraised at a hot 89.6°F (32°C). If exposure and activity are sustained, they might cause a feeling of weariness, resulting in heat cramps.Keep in mind the heat index values are meant for areas in shade and with light wind. Exposure to the direct sun might augment heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'apparent temperature', determines the feeling of heat when you account for the relative humidity. Additional elements encompassing metabolic differences, the degree of physical activity, and attire can impact the individual's perception of temperature. Direct sunlight exposure should be noted as it has the potential to increase the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly meaningful for babies and toddlers. Young ones often do not realize the necessity to rest and replenish their fluids. Thirst is a delayed indication of dehydration - keeping hydrated, particularly in prolonged physical activity, is crucial.
Humidity
July and September, with an average relative humidity of 43%, are the least humid months.Rainfall
In September, the rain falls for 2.4 days. Throughout September, 0.2" (5mm) of precipitation is accumulated. Throughout the year, there are 67.3 rainfall days, and 10.79" (274mm) of precipitation is accumulated.Snowfall
January through November are months without snowfall.Daylight
In September, the average length of the day is 12h and 25min.On the first day of the month, sunrise is at 6:35 am and sunset at 7:34 pm. On the last day of September, sunrise is at 7:01 am and sunset at 6:49 pm PDT.
Sunshine
The average sunshine in September is 11.2h.UV index
The average daily maximum UV index in September is 5. A UV Index value of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV rays for the ordinary person.Note: The maximum UV index of 5 during September leads to these instructions:
Ensure safety - Sun damage prevention is strongly urged. Sun exposure should be minimized, especially during midday, to avoid harmful UV radiation. Equip yourself with UVA and UVB-filtering sunglasses on clear, sunny days.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot is September in Carmichael?
What are the least humid months?
What is the average humidity in September?
How much does it rain in September?
When it does not snow?
How many hours of daylight does Carmichael have in September?
What time are sunrise and sunset in September?
How long on average sun shines in September?
What is the UV index intensity in September in Carmichael?
Average temperature in September
Carmichael, CA
- Average high temperature in September: 88.5°F
The warmest month (with the highest average high temperature) is July (94.5°F).
The month with the lowest average high temperature is December (54.1°F).
- Average low temperature in September: 58.8°F
The months with the highest average low temperature are July and August (60.1°F).
The coldest month (with the lowest average low temperature) is December (40.8°F).
Average pressure in September
Carmichael, CA
- Average pressure in September: 29.92"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).
Average wind speed in September
Carmichael, CA
- Average wind speed in September: 4.1mph
The windiest month (with the highest average wind speed) is February (5.7mph).
The calmest month (with the lowest average wind speed) is September (4.1mph).
Average humidity in September
Carmichael, CA
- Average humidity in September: 43%
The month with the highest relative humidity is March (75%).
The months with the lowest relative humidity are July and September (43%).
Average rainfall in September
Carmichael, CA
- Average rainfall in September: 0.2"
The wettest month (with the highest rainfall) is March (1.97").
The driest months (with the least rainfall) are July and August (0.04").
Average rainfall days in September
Carmichael, CA
- Average rainfall days in September: 2.4 days
The month with the highest number of rainy days is March (12 days).
The months with the least rainy days are June and July (1.3 days).
Average snowfall days in September
Carmichael, CA
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is December (0.1 days).
The months with the least snowfall days are January, February, March, April, May, June, July, August, September, October and November (0 days).
Average daylight in September /
Average sunshine in September
Carmichael, CA
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 48min).
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 48min).
Average sunshine days in September
Carmichael, CA
- Average sunshine days in September: 26.6 days
The month with the most sunshine days is July (29.3 days).
The month with the least sunshine days is March (18.1 days).
Average UV index in September
Carmichael, CA
- Average UV index in September: 5
The months with the highest UV index are June and July (UV index 7).
The months with the lowest UV index are February, November and December (UV index 3).
Average cloud cover in September
Carmichael, CA
- Average cloud cover in September: 8
The month with the most cloud cover is March (Cloud cover 38).
The month with the least cloud cover is July (Cloud cover 4).
Average visibility in September
Carmichael, 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).
Carmichael, California, USA
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