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
The transition from August to September brings an average high-temperature of a moderately hot 84.9°F (29.4°C), barely different from August's 90°F (32.2°C). Cahuilla endures a clear shift from daytime heat to a mean low-temperature of 61.9°F (16.6°C) during September nights.Heat index
The average heat index in September is appraised at 84.2°F (29°C). With ongoing exposure and activity, one might experience weariness, and heat cramps could ensue.Be informed that the heat index values are oriented around shady conditions and gentle breezes. The heat index may scale up by 15 Fahrenheit (8 Celsius) degrees with direct sun exposure.
Note: The heat index, also known as 'felt air temperature' or 'feels like', is a composite of temperature and humidity figures to convey how warm it feels. Elements of metabolic variation, physical activity, and clothing contribute to the effect of temperature on an individual. Keep aware, the sun, when shining directly, can intensify the heat experience, pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly meaningful for babies and toddlers. Youngsters frequently overlook the need for breaks and fluid intake. Thirst is an advanced sign of dehydration - thereby highlighting the importance of keeping hydrated, particularly during long physical activities.
Humidity
In Cahuilla, the average relative humidity in September is 41%.Rainfall
In September, the rain falls for 3.6 days. Throughout September, 0.24" (6mm) of precipitation is accumulated. In Cahuilla, during the entire year, the rain falls for 52.8 days and collects up to 7.01" (178mm) of precipitation.Snowfall
In Cahuilla, California, snow does not fall in January, April through October and December.Daylight
In September, the average length of the day is 12h and 22min.On the first day of the month, sunrise is at 6:21 am and sunset at 7:11 pm. On the last day of September, in Cahuilla, sunrise is at 6:41 am and sunset at 6:32 pm PDT.
Sunshine
In September, the average sunshine in Cahuilla is 10.5h.UV index
The average daily maximum UV index in September is 6. A UV Index of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV rays for the ordinary person.Note: A maximum high UV index of 6 in September translates into the following recommendations:
Stay clear of intense sun exposure. Solar protection is of utmost significance. Seek shade and limit direct sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation. Keep in mind that shade structures like parasols or canopies do not offer complete sun protection. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Is it hot during September?
What is the average humidity in September in Cahuilla?
How much does it rain in September?
When it does not snow?
What is the average length of the day in September?
What time are sunrise and sunset in September?
How many hours of sunshine does Cahuilla have in September?
What is the UV index reading in September?
Average temperature in September
Cahuilla, CA
- Average high temperature in September: 84.9°F
The warmest month (with the highest average high temperature) is August (90°F).
The month with the lowest average high temperature is December (57°F).
- Average low temperature in September: 61.9°F
The month with the highest average low temperature is August (65.3°F).
The coldest month (with the lowest average low temperature) is December (40.5°F).
Average pressure in September
Cahuilla, CA
- Average pressure in September: 29.86"Hg
The month with the highest atmospheric pressure is January (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.83"Hg).
Average wind speed in September
Cahuilla, CA
- Average wind speed in September: 5.1mph
The windiest months (with the highest average wind speed) are April and May (6.8mph).
The calmest month (with the lowest average wind speed) is September (5.1mph).
Average humidity in September
Cahuilla, CA
- Average humidity in September: 41%
The month with the highest relative humidity is February (54%).
The month with the lowest relative humidity is August (37%).
Average rainfall in September
Cahuilla, CA
- Average rainfall in September: 0.24"
The wettest month (with the highest rainfall) is February (1.38").
The driest month (with the least rainfall) is June (0.08").
Average rainfall days in September
Cahuilla, CA
- Average rainfall days in September: 3.6 days
The month with the highest number of rainy days is July (6.3 days).
The month with the least rainy days is June (1.8 days).
Average snowfall in September
Cahuilla, CA
- Average snowfall in September: 0"
The month with the highest snowfall is February (0.28").
The months with the least snowfall are January, April, May, June, July, August, September, October and December (0").
Average snowfall days in September
Cahuilla, CA
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (0.3 days).
The months with the least snowfall days are January, April, May, June, July, August, September and October (0 days).
Average daylight in September /
Average sunshine in September
Cahuilla, CA
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 18min).
The month with the shortest days is December (Average daylight: 10h and 0min).
- Average sunshine in September: 10h and 3min
The months with the most sunshine are June and July (Average sunshine: 12h and 6min).
The month with the least sunshine is December (Average sunshine: 6h and 48min).
Average sunshine days in September
Cahuilla, CA
- Average sunshine days in September: 23.2 days
The month with the most sunshine days is October (27.2 days).
The month with the least sunshine days is July (20.7 days).
Average UV index in September
Cahuilla, CA
- Average UV index in September: 6
The month with the highest UV index is July (UV index 7).
The months with the lowest UV index are February, November and December (UV index 3).
Average cloud cover in September
Cahuilla, CA
- Average cloud cover in September: 7
The month with the most cloud cover is December (Cloud cover 23).
The months with the least cloud cover are June and August (Cloud cover 6).
Average visibility in September
Cahuilla, 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).
Cahuilla, California, USA
Weather forecast for your location
2. Allow the app to use your location