September weather forecast
Silverado, CA

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Weather in September

The first month of the autumn, September, is also a moderately hot month in Silverado, California, with temperature in the range of an average high of 81°F and an average low of 63.7°F.

Temperature

At the start of September, Silverado's average high-temperature reaches a still warm 81°F, subtly different from the preceding month. In Silverado, an average temperature of 63.7°F is noted during September nights.

Heat index

Throughout September, the heat index is appraised at 82.4°F. Long-standing exposure coupled with ongoing activity could result in exhaustion, possibly causing heat cramps.
Keep in mind the heat index values are meant for areas in shade and with light wind. Heat index values might soar by up to 15 Fahrenheit (8 Celsius) degrees with exposure to direct sunshine.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', comes about by integrating the temperature readings with the humidity levels. Factors such as metabolic variations, being pregnant, and physical activity can impact an individual's weather perception. Consider the fact that direct sun exposure can influence how hot one feels, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to children. Young children are generally more endangered than adults, as they usually less sweat. And also, due to larger skin surface relative to their small bodies and higher heat production as a result of their activity.

Humidity

In Silverado, California, the average relative humidity in September is 61%.

Rainfall

In Silverado, in September, during 4.6 rainfall days, 0.31" of precipitation is typically accumulated. Throughout the year, there are 65.4 rainfall days, and 9.17" of precipitation is accumulated.

Daylight

In Silverado, the average length of the day in September is 12h and 22min.
On the first day of September in Silverado, sunrise is at 6:24 am and sunset at 7:16 pm. On the last day of the month, sunrise is at 6:44 am and sunset at 6:36 pm PDT.

Sunshine

In Silverado, the average sunshine in September is 10.6h.

UV index

June through September, with an average maximum UV index of 6, are months with the highest UV index in Silverado, California. A UV Index of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV radiation for the average person.
Note: In September, the average maximum UV index of 6 translates into the following recommendations:
Inhibit overexposure. Warding off sun damage is of utmost importance. Stay out of direct sunlight and seek shade between 10 a.m. and 4 p.m., when UV radiation is strongest, but remember that shade devices may not offer full sun protection. For excellent sun protection for the eyes, ears, face, and neck, consider a wide-brim hat.
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FAQ

What are the temperatures in Silverado in September?

During September, Silverado experiences an average high-temperature of 81°F and a low-temperature of 63.7°F. The average heat index (a.k.a. 'felt air temperature', 'real feel'), which represents the influence of relative humidity on air temperature, in September is appraised at 82.4°F.

What is the average humidity in September in Silverado?

The average relative humidity in September is 61%.

How many days does it rain in September in Silverado?

In September, in Silverado, the rain falls for 4.6 days. Throughout September, 0.31" of precipitation is accumulated.

How many hours of daylight does Silverado have in September?

In September, the average day length in Silverado is 12h and 22min.

What time are sunrise and sunset in September in Silverado?

On the first day of September, sunrise is at 6:24 am and sunset at 7:16 pm. On the last day of the month, sunrise is at 6:44 am and sunset at 6:36 pm PDT.

How long on average sun shines in September in Silverado?

In Silverado, the average sunshine duration in September is 10.6h.

What are the months with the highest UV index in Silverado?

The months with the highest UV index are June through September, with an average maximum UV index of 6.

What is the UV index intensity in September in Silverado?

In Silverado, the average daily maximum UV index in September is 6. A UV Index of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV radiation.
Average high temperature
Average low temperature
Average pressure
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
Average rainfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Silverado, CA

Average temperature in September - Silverado, CA
  • Average high temperature in September: 81°F

The warmest month (with the highest average high temperature) is August (82°F).
The month with the lowest average high temperature is December (63.1°F).

  • Average low temperature in September: 63.7°F

The month with the highest average low temperature is August (64.4°F).
The coldest month (with the lowest average low temperature) is February (48.7°F).

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Average pressure in September
Silverado, CA

Average pressure in September - Silverado, CA
  • Average pressure in September: 29.88"Hg

The month with the highest atmospheric pressure is January (30.1"Hg).
The months with the lowest atmospheric pressure are June and September (29.88"Hg).

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Average wind speed in September
Silverado, CA

Average wind speed in September - Silverado, CA
  • Average wind speed in September: 4.5mph

The windiest months (with the highest average wind speed) are April and May (5.7mph).
The calmest months (with the lowest average wind speed) are August and September (4.5mph).

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Average humidity in September
Silverado, CA

Average humidity in September - Silverado, CA
  • Average humidity in September: 61%

The months with the highest relative humidity are May and June (69%).
The month with the lowest relative humidity is November (55%).

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Average rainfall in September
Silverado, CA

Average rainfall in September - Silverado, CA
  • Average rainfall in September: 0.31"

The wettest month (with the highest rainfall) is December (1.85").
The driest month (with the least rainfall) is June (0.08").

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Average rainfall days in September
Silverado, CA

Average rainfall days in September - Silverado, CA
  • Average rainfall days in September: 4.6 days

The month with the highest number of rainy days is March (8.1 days).
The month with the least rainy days is June (2 days).

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Average daylight in September /
Average sunshine in September
Silverado, CA

Average daylight in September / Average sunshine in September - Silverado, CA
  • Average daylight in September: 12h and 2min

The month with the longest days is June (Average daylight: 14h and 24min).
The month with the shortest days is December (Average daylight: 10h and 0min).

  • Average sunshine in September: 10h and 4min

The months with the most sunshine are July and August (Average sunshine: 12h and 0min).
The month with the least sunshine is December (Average sunshine: 6h and 36min).

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Average sunshine days in September
Silverado, CA

Average sunshine days in September - Silverado, CA
  • Average sunshine days in September: 21.8 days

The months with the most sunshine days are January and October (24.2 days).
The month with the least sunshine days is May (19.3 days).

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Average UV index in September
Silverado, CA

Average UV index in September - Silverado, 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 January, February, March, November and December (UV index 4).

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Average cloud cover in September
Silverado, CA

Average cloud cover in September - Silverado, CA
  • Average cloud cover in September: 10

The months with the most cloud cover are March and December (Cloud cover 24).
The month with the least cloud cover is August (Cloud cover 6).

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Average visibility in September
Silverado, CA

Average visibility in September - Silverado, 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).

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Silverado, California, USA

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