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 reports an average high-temperature of a still moderately hot 83.3°F (28.5°C), slightly varied from August's 85.5°F (29.7°C). Santa Margarita in September observes a sharp transition from the daytime heat, falling to an average low of 59.9°F (15.5°C).Heat index
The heat index value for September is appraised at 84.2°F (29°C). Exposure and extended activity could potentially cause a state of fatigue and lead to heat cramps.The metrics for the heat index are tailored for both shady environments and light winds. An exposure to direct sunlight may lift the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', is an index that combines air temperature and relative humidity to determine the human-perceived temperature equivalent. An individual's perception of weather can be swayed by a variety of elements including metabolic differences, pregnancy status, and their level of physical exertion. It is noteworthy that being in direct sunlight can enhance the weather's impact, raising the heat index by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely vital to babies and toddlers. Young ones often ignore the need to take a break and drink fluids. Thirst is a late-stage symptom of dehydration - hence, maintaining hydration, particularly during extended physical activities, is crucial.
Humidity
With an average relative humidity of 50%, September is the least humid month in Santa Margarita.Rainfall
In Santa Margarita, California, in September, it is raining for 1.8 days, with typically 0.12" (3mm) of accumulated precipitation. In Santa Margarita, during the entire year, the rain falls for 54.8 days and collects up to 8.66" (220mm) of precipitation.Daylight
In Santa Margarita, California, the average length of the day in September is 12h and 23min.On the first day of September, sunrise is at 6:35 am and sunset at 7:28 pm. On the last day of the month, sunrise is at 6:57 am and sunset at 6:47 pm PDT.
Sunshine
In September, the average sunshine is 11.3h.UV index
The months with the highest UV index are June through September, with an average maximum UV index of 6. A UV Index reading of 6 to 7 represents a high health hazard from exposure to the Sun's UV radiation for ordinary individuals.Note: The daily high UV index of 6 in September translates into this advice:
Adopt measures and apply sun safety strategies. Shielding from skin and eye damage is necessary. Avoid direct sunlight between the hours of 10 a.m. and 4 p.m., when UV radiation is at its peak. Keep in mind that shade structures may not provide complete protection. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses.
Frequently asked questions
How hot is it in Santa Margarita in September?
What is the least humid month in Santa Margarita?
What is the average humidity in September in Santa Margarita?
How many days does it rain in September in Santa Margarita?
How many hours of daylight does Santa Margarita have in September?
When is the sunrise / sunset in September in Santa Margarita?
How long on average sun shines in September in Santa Margarita?
What are the months with the highest UV index in Santa Margarita?
How high is the UV index in September in Santa Margarita?
Average temperature in September
Santa Margarita, CA
- Average high temperature in September: 83.3°F
The warmest month (with the highest average high temperature) is August (85.5°F).
The month with the lowest average high temperature is December (58.5°F).
- Average low temperature in September: 59.9°F
The month with the highest average low temperature is September (59.9°F).
The coldest month (with the lowest average low temperature) is December (42.8°F).
Average pressure in September
Santa Margarita, CA
- Average pressure in September: 29.91"Hg
The month with the highest atmospheric pressure is January (30.12"Hg).
The months with the lowest atmospheric pressure are June, August and September (29.91"Hg).
Average wind speed in September
Santa Margarita, CA
- Average wind speed in September: 4.5mph
The windiest months (with the highest average wind speed) are March and April (5.9mph).
The calmest months (with the lowest average wind speed) are August and September (4.5mph).
Average humidity in September
Santa Margarita, CA
- Average humidity in September: 50%
The months with the highest relative humidity are February and March (68%).
The month with the lowest relative humidity is September (50%).
Average rainfall in September
Santa Margarita, CA
- Average rainfall in September: 0.12"
The wettest month (with the highest rainfall) is March (1.73").
The driest months (with the least rainfall) are June and August (0.04").
Average rainfall days in September
Santa Margarita, CA
- Average rainfall days in September: 1.8 days
The month with the highest number of rainy days is March (10.2 days).
The month with the least rainy days is June (0.8 days).
Average daylight in September /
Average sunshine in September
Santa Margarita, CA
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 30min).
The month with the shortest days is December (Average daylight: 9h and 48min).
- Average sunshine in September: 11h and 2min
The months with the most sunshine are June and July (Average sunshine: 12h and 0min).
The months with the least sunshine are February and December (Average sunshine: 6h and 18min).
Average sunshine days in September
Santa Margarita, CA
- Average sunshine days in September: 28 days
The month with the most sunshine days is August (29.8 days).
The month with the least sunshine days is February (19.7 days).
Average UV index in September
Santa Margarita, CA
- Average UV index in September: 6
The months with the highest UV index are June, July, August and September (UV index 6).
The months with the lowest UV index are February, November and December (UV index 3).
Average cloud cover in September
Santa Margarita, CA
- Average cloud cover in September: 7
The month with the most cloud cover is March (Cloud cover 31).
The month with the least cloud cover is August (Cloud cover 6).
Average visibility in September
Santa Margarita, 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).
Santa Margarita, California, USA
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