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
With the start of September, Shandon measures an average high-temperature of a warm 85.3°F (29.6°C), not significantly differing from August's 88.3°F (31.3°C). Throughout September nights, a significant departure from daytime temperatures, with an average low of 60.3°F (15.7°C), is recognized in Shandon, California.Heat index
Throughout September, the heat index is appraised at a tropical 86°F (30°C). Prolonged exposure and physical activity might induce exhaustion, potentially causing heat cramps.Note that heat index values are valued for light wind and location in the shade. The heat index may scale up by 15 Fahrenheit (8 Celsius) degrees with direct sun exposure.
Note: The heat index, also known as 'feels like' or 'felt air temperature', evaluates the perceived heat by adding the effect of moisture in the air. Elements such as metabolic variations, pregnancy, and physical exertion can shape one's weather perception. Direct exposure to the sun's rays can enhance the felt temperature, increasing the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are of high significance for children. Young individuals usually face more risks than adults due to their lower sweat production. Their large skin surface area relative to their tiny bodies and high heat production from their activities adds to their risk.
Humidity
With an average relative humidity of 46%, September is the least humid month in Shandon.Rainfall
In Shandon, in September, during 1.4 rainfall days, 0.08" (2mm) of precipitation is typically accumulated. Throughout the year, there are 55.4 rainfall days, and 7.91" (201mm) of precipitation is accumulated.Daylight
The average length of the day in September in Shandon, California, is 12h and 23min.On the first day of September in Shandon, sunrise is at 6:34 am and sunset at 7:28 pm. On the last day of the month, sunrise is at 6:56 am and sunset at 6:46 pm PDT.
Sunshine
In September, the average sunshine in Shandon is 11.4h.UV index
June through September, with an average maximum UV index of 6, are months with the highest UV index. A UV Index of 6 to 7 symbolizes a high health hazard from unsafe exposure to UV radiation for ordinary individuals.Note: The UV index of 6 in September translates into these instructions:
Resist overexposure. Safeguarding from solar damage is indispensable. Between 10 a.m. and 4 p.m., the Sun's UV radiation is at its peak. Limit your exposure to direct sunlight during these hours. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears.
Frequently asked questions
How hot is it in Shandon in September?
What is the least humid month in Shandon?
What is the average humidity in September in Shandon?
How much does it rain in Shandon in September?
How many hours of daylight does Shandon have in September?
What time are sunrise and sunset in September in Shandon?
How many hours of sunshine does Shandon have in September?
When is the highest UV index in Shandon?
What is the UV index reading in September in Shandon?
Average temperature in September
Shandon, CA
- Average high temperature in September: 85.3°F
The warmest months (with the highest average high temperature) are July and August (88.3°F).
The month with the lowest average high temperature is December (57.7°F).
- Average low temperature in September: 60.3°F
The month with the highest average low temperature is August (60.8°F).
The coldest month (with the lowest average low temperature) is December (41.9°F).
Average pressure in September
Shandon, CA
- Average pressure in September: 29.91"Hg
The month with the highest atmospheric pressure is January (30.13"Hg).
The months with the lowest atmospheric pressure are June, August and September (29.91"Hg).
Average wind speed in September
Shandon, CA
- Average wind speed in September: 4.3mph
The windiest month (with the highest average wind speed) is April (5.8mph).
The calmest month (with the lowest average wind speed) is September (4.3mph).
Average humidity in September
Shandon, CA
- Average humidity in September: 46%
The month with the highest relative humidity is February (68%).
The month with the lowest relative humidity is September (46%).
Average rainfall in September
Shandon, CA
- Average rainfall in September: 0.08"
The wettest month (with the highest rainfall) is March (1.65").
The driest month (with the least rainfall) is August (0.04").
Average rainfall days in September
Shandon, CA
- Average rainfall days in September: 1.4 days
The month with the highest number of rainy days is March (10.3 days).
The month with the least rainy days is August (0.9 days).
Average daylight in September /
Average sunshine in September
Shandon, 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 month with the most sunshine is July (Average sunshine: 12h and 6min).
The months with the least sunshine are February and December (Average sunshine: 6h and 18min).
Average sunshine days in September
Shandon, CA
- Average sunshine days in September: 28.1 days
The month with the most sunshine days is August (29.4 days).
The month with the least sunshine days is February (20 days).
Average UV index in September
Shandon, 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
Shandon, CA
- Average cloud cover in September: 6
The month with the most cloud cover is March (Cloud cover 31).
The months with the least cloud cover are July and August (Cloud cover 5).
Average visibility in September
Shandon, 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).
Shandon, California, USA
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