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
With the beginning of September, the average high-temperature shows a small decrease, transitioning from a hot 91.2°F (32.9°C) in August to a warm 85.8°F (29.9°C). San Carlos observes an average nighttime temperature of 66°F (18.9°C) during September.Heat index
Throughout September, the heat index is calculated to be a hot 86°F (30°C). Constant activity during exposure could result in a state of weariness and possibly heat cramps.Consider that heat index readings are for situations in the shade and light wind. Direct sunlight exposure may result in a rise of the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', is an index that combines air temperature and relative humidity to determine the human-perceived temperature equivalent. The impression of weather on a person can be swayed by additional aspects, including metabolic variations, pregnancy, and activity levels. Awareness is key; direct sunlight can enhance the weather's impact, possibly boosting the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are of high significance for children. Kids frequently ignore the importance of taking a break and rehydrating. Thirst is a late symptom of dehydration - thus, it is crucial to stay hydrated, especially during long-lasting physical activities.
Humidity
In September, the average relative humidity in San Carlos is 40%.Rainfall
In San Carlos, during September, the rain falls for 8.7 days and regularly aggregates up to 0.87" (22mm) of precipitation. Throughout the year, there are 75.1 rainfall days, and 8.82" (224mm) of precipitation is accumulated.Snowfall
April through November are months without snowfall.Daylight
In September, the average length of the day in San Carlos is 12h and 22min.On the first day of the month, sunrise is at 5:56 am and sunset at 6:46 pm. On the last day of September, sunrise is at 6:15 am and sunset at 6:07 pm MST.
Sunshine
In San Carlos, the average sunshine in September is 10h.UV index
The average daily maximum UV index in September is 6. A UV Index estimate of 6 to 7 represents a high health hazard from exposure to the Sun's UV radiation for the ordinary person.Note: The UV index of 6 during September translates into the following guidance:
Prevent overexposure. Protection from the sun's harmful effects is needed. The Sun's UV radiation is at its strongest between the hours of 10 a.m. and 4 p.m. Minimize direct exposure to the sun during this period. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes. Take heed! The reflection of snow can intensify the Sun's UV radiation nearly double.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot does it get in September?
What is the average humidity in September?
How much does it rain in September?
When it does not snow in San Carlos?
How many hours of daylight does San Carlos have in September?
When is the sunrise / sunset in September?
How long on average sun shines in September?
How high is the UV index in September?
Average temperature in September
San Carlos, AZ
- Average high temperature in September: 85.8°F
The warmest month (with the highest average high temperature) is July (92.8°F).
The month with the lowest average high temperature is December (55.2°F).
- Average low temperature in September: 66°F
The month with the highest average low temperature is July (72.5°F).
The coldest month (with the lowest average low temperature) is December (36.9°F).
Average pressure in September
San Carlos, AZ
- Average pressure in September: 29.93"Hg
The month with the highest atmospheric pressure is January (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.87"Hg).
Average wind speed in September
San Carlos, AZ
- Average wind speed in September: 5.5mph
The windiest month (with the highest average wind speed) is May (7.2mph).
The calmest months (with the lowest average wind speed) are August and December (5.2mph).
Average humidity in September
San Carlos, AZ
- Average humidity in September: 40%
The month with the highest relative humidity is December (53%).
The month with the lowest relative humidity is June (21%).
Average rainfall in September
San Carlos, AZ
- Average rainfall in September: 0.87"
The wettest month (with the highest rainfall) is August (1.22").
The driest month (with the least rainfall) is June (0.12").
Average rainfall days in September
San Carlos, AZ
- Average rainfall days in September: 8.7 days
The month with the highest number of rainy days is July (13.3 days).
The month with the least rainy days is June (2.9 days).
Average snowfall in September
San Carlos, AZ
- Average snowfall in September: 0"
The month with the highest snowfall is January (0.08").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").
Average snowfall days in September
San Carlos, AZ
- Average snowfall days in September: 0.1 days
The months with the highest number of snowfall days are January and February (0.3 days).
The months with the least snowfall days are April, May, June, July, August, October and November (0 days).
Average daylight in September /
Average sunshine in September
San Carlos, AZ
- 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 0min
The month with the most sunshine is August (Average sunshine: 12h and 18min).
The month with the least sunshine is December (Average sunshine: 6h and 42min).
Average sunshine days in September
San Carlos, AZ
- Average sunshine days in September: 18.2 days
The month with the most sunshine days is May (26.8 days).
The month with the least sunshine days is July (13.1 days).
Average UV index in September
San Carlos, AZ
- Average UV index in September: 6
The months with the highest UV index are June, July and August (UV index 7).
The month with the lowest UV index is December (UV index 2).
Average cloud cover in September
San Carlos, AZ
- Average cloud cover in September: 13
The month with the most cloud cover is December (Cloud cover 23).
The month with the least cloud cover is June (Cloud cover 7).
Average visibility in September
San Carlos, AZ
- 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).
San Carlos, Arizona, USA
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