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's advent denotes a minor fluctuation in the average high-temperature to a moderately hot 84.9°F (29.4°C) from August's 90°F (32.2°C). Throughout the month of September, Cahuilla observes a dramatic downturn from the daytime peak temperatures, expecting an average low of 61.9°F (16.6°C).Heat index
Throughout September, the heat index is evaluated at 84.2°F (29°C). Continued exposure and engagement in activity might trigger tiredness and subsequently heat cramps.Understand that the heat index values take into account shaded locations and mild winds. The heat index may experience an enhancement of 15 Fahrenheit (8 Celsius) degrees under direct sunlight.
Note: The heat index, also known as 'felt air temperature' or 'feels like', provides an understanding of perceived warmth by combining temperature and relative humidity. Elements such as metabolic variations, pregnancy, and physical exertion can shape one's weather perception. Direct sun rays can make one feel hotter, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially vital to children. Children often do not understand the need to rest and hydrate. Thirst is a late manifestation of dehydration - therefore, it is essential to stay hydrated, particularly during prolonged physical activities.
Humidity
In September, the average relative humidity is 41%.Rainfall
In Cahuilla, in September, during 3.6 rainfall days, 0.24" (6mm) of precipitation is typically accumulated. Throughout the year, in Cahuilla, there are 52.8 rainfall days, and 7.01" (178mm) of precipitation is accumulated.Snowfall
In Cahuilla, snow does not fall in January, April through October and December.Daylight
The average length of the day in September in Cahuilla, California, is 12h and 22min.On the first day of September, sunrise is at 6:21 am and sunset at 7:11 pm. On the last day of the month, 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
In Cahuilla, the average daily maximum UV index in September is 6. A UV Index estimate of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV radiation for ordinary individuals.Note: In September, the maximum UV index of 6 suggests this advice:
Evade overexposure. Individuals with fair skin risk burning in under 20 minutes. The time between 10 a.m. and 4 p.m. is when UV radiation is at its peak. Limit exposure to direct sunlight during these hours. Fend off the sun's harsh rays with appropriate clothing, a wide-brim hat, and UV-protective sunglasses.
Frequently asked questions
How hot does it get in Cahuilla in September?
What is the average humidity in September in Cahuilla?
How many days does it rain in September in Cahuilla?
When it does not snow in Cahuilla?
How many hours of daylight does Cahuilla have in September?
When are sunrise and sunset in September in Cahuilla?
How long on average sun shines in September in Cahuilla?
What is the UV index reading in September in Cahuilla?
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
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