September weather forecast
Rancho Rinconada, CA

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Weather in September

September, the first month of the autumn in Rancho Rinconada, is also a moderately hot month, with temperature in the range of an average high of 77.5°F (25.3°C) and an average low of 55.8°F (13.2°C).

Temperature

September's presence marks an average high-temperature of a still warm 77.5°F (25.3°C), subtly varied from August's 79.2°F (26.2°C). In Rancho Rinconada, the nighttime chill during September is a clear shift from the day's highs, with an average of 55.8°F (13.2°C).

Humidity

The months with the lowest humidity in Rancho Rinconada are July, September and October, with an average relative humidity of 64%.

Rainfall

In Rancho Rinconada, in September, it is raining for 2.5 days, with typically 0.08" (2mm) of accumulated precipitation. Throughout the year, in Rancho Rinconada, there are 53.6 rainfall days, and 5.39" (137mm) of precipitation is accumulated.

Daylight

In Rancho Rinconada, the average length of the day in September is 12h and 25min.
On the first day of September in Rancho Rinconada, sunrise is at 6:39 am and sunset at 7:36 pm. On the last day of the month, sunrise is at 7:03 am and sunset at 6:52 pm PDT.

Sunshine

In Rancho Rinconada, the average sunshine in September is 11.1h.

UV index

In Rancho Rinconada, the average daily maximum UV index in September is 5. A UV Index value of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV rays for ordinary individuals.
Note: An average maximum UV index of 5 in September leads to these recommendations:
Put precautions into practice - Ensuring skin and eye safety is a necessity. To protect against the Sun's most potent rays, avoid direct exposure around midday. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears.
Updated: Feb 10, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the average September temperature in Rancho Rinconada?

In September, in Rancho Rinconada, the average high-temperature is 77.5°F (25.3°C), and the average low-temperature is 55.8°F (13.2°C).

What are the least humid months in Rancho Rinconada?

July, September and October, with an average relative humidity of 64%, are the least humid months in Rancho Rinconada.

What is the average humidity in September in Rancho Rinconada?

In Rancho Rinconada, the average relative humidity in September is 64%.

How many days does it rain in September in Rancho Rinconada?

In Rancho Rinconada, California, in September, it is raining for 2.5 days, with typically 0.08" (2mm) of accumulated precipitation.

How many hours of daylight does Rancho Rinconada have in September?

In September, the average day length in Rancho Rinconada, California, is 12h and 25min.

When are sunrise and sunset in September in Rancho Rinconada?

On the first day of September in Rancho Rinconada, sunrise is at 6:39 am and sunset at 7:36 pm. On the last day of the month, sunrise is at 7:03 am and sunset at 6:52 pm PDT.

How long on average sun shines in September in Rancho Rinconada?

The average sunshine duration in September is 11.1h.

What is the UV index intensity in September in Rancho Rinconada?

In September, the average daily maximum UV index in Rancho Rinconada is 5. A UV Index of 3 to 5 symbolizes a medium health risk from unprotected exposure to UV radiation.
Average humidity
Average rainfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Rancho Rinconada, CA

Average temperature in September - Rancho Rinconada, CA
  • Average high temperature in September: 77.5°F

The warmest month (with the highest average high temperature) is July (79.3°F).
The month with the lowest average high temperature is December (57°F).

  • Average low temperature in September: 55.8°F

The month with the highest average low temperature is August (56.1°F).
The coldest months (with the lowest average low temperature) are February and March (44.2°F).

Average pressure in September
Rancho Rinconada, CA

Average pressure in September - Rancho Rinconada, CA
  • Average pressure in September: 29.92"Hg

The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is September (29.92"Hg).

Average wind speed in September
Rancho Rinconada, CA

Average wind speed in September - Rancho Rinconada, CA
  • Average wind speed in September: 4.6mph

The windiest month (with the highest average wind speed) is April (6.2mph).
The calmest month (with the lowest average wind speed) is September (4.6mph).

Average humidity in September
Rancho Rinconada, CA

Average humidity in September - Rancho Rinconada, CA
  • Average humidity in September: 64%

The month with the highest relative humidity is March (74%).
The months with the lowest relative humidity are July, September and October (64%).

Average rainfall in September
Rancho Rinconada, CA

Average rainfall in September - Rancho Rinconada, CA
  • Average rainfall in September: 0.08"

The wettest month (with the highest rainfall) is February (1.02").
The driest months (with the least rainfall) are July and August (0.04").

Average rainfall days in September
Rancho Rinconada, CA

Average rainfall days in September - Rancho Rinconada, CA
  • Average rainfall days in September: 2.5 days

The month with the highest number of rainy days is March (9 days).
The month with the least rainy days is August (0.8 days).

Average daylight in September /
Average sunshine in September
Rancho Rinconada, CA

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

The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 36min).

  • Average sunshine in September: 11h and 1min

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: 5h and 54min).

Average sunshine days in September
Rancho Rinconada, CA

Average sunshine days in September - Rancho Rinconada, CA
  • Average sunshine days in September: 26.5 days

The month with the most sunshine days is August (28.5 days).
The months with the least sunshine days are February and March (20.8 days).

Average UV index in September
Rancho Rinconada, CA

Average UV index in September - Rancho Rinconada, CA
  • Average UV index in September: 5

The month with the highest UV index is June (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 3).

Average cloud cover in September
Rancho Rinconada, CA

Average cloud cover in September - Rancho Rinconada, CA
  • Average cloud cover in September: 10

The month with the most cloud cover is March (Cloud cover 35).
The month with the least cloud cover is July (Cloud cover 7).

Average visibility in September
Rancho Rinconada, CA

Average visibility in September - Rancho Rinconada, 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).

Rancho Rinconada, California, USA

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