September weather forecast
Nacomis Indian Rancheria, CA

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Weather in September

The first month of the autumn, September, is still a warm month in Nacomis Indian Rancheria, California, with an average temperature ranging between max 84.9°F (29.4°C) and min 54°F (12.2°C).

Temperature

September's climate shows a minor adjustment in average high-temperatures to a moderately hot 84.9°F (29.4°C) from August's 89.8°F (32.1°C). Nacomis Indian Rancheria in September observes a sharp transition from the daytime heat, falling to an average low of 54°F (12.2°C).

Heat index

The heat index in September is calculated to be a hot 86°F (30°C). Persisting in activity during exposure could lead to weariness and subsequently to heat cramps.
The metrics for the heat index are tailored for both shady environments and light winds. A rise of up to 15 Fahrenheit (8 Celsius) degrees in the heat index could result from direct sunlight.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', unifies temperature and humidity readings to offer a comprehensive feel of warmth. The impact of weather is individual, with diverse individuals experiencing it differently due to variations in body mass, height, and activity levels. When exposed to direct sunlight, it's possible for the heat index to increase by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly meaningful for babies and toddlers. Children often fail to recognize the requirement to rest and rehydrate. Thirst, being a late symptom of dehydration, underlines the importance of maintaining hydration, especially during ongoing physical activities.

Humidity

In September, the average relative humidity in Nacomis Indian Rancheria, California, is 49%.

Rainfall

In Nacomis Indian Rancheria, in September, during 2.4 rainfall days, 0.12" (3mm) of precipitation is typically accumulated. In Nacomis Indian Rancheria, during the entire year, the rain falls for 88.1 days and collects up to 20.28" (515mm) of precipitation.

Snowfall

In Nacomis Indian Rancheria, snow does not fall in April through October.

Daylight

In September, the average length of the day is 12h and 25min.
On the first day of September, sunrise is at 6:41 am and sunset at 7:42 pm. On the last day of the month, sunrise is at 7:08 am and sunset at 6:55 pm PDT.

Sunshine

The average sunshine in September is 11h.

UV index

In Nacomis Indian Rancheria, the average daily maximum UV index in September is 5. A UV Index of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV rays for the ordinary person.
Note: An average UV index of 5 in September transforms into this advice:
Exercise prevention - Protecting skin and eyes from harm is required. Avoid the Sun's strongest UV rays by seeking shade and limiting exposure during midday. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key.
Updated: Jul 30, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How hot is it in September?

The high-temperature, in September, in Nacomis Indian Rancheria, is 84.9°F (29.4°C), while the low-temperature averages to 54°F (12.2°C). The average heat index (a.k.a. 'feels like', 'apparent temperature'), which calculates the temperature value influenced by the moisture in the air, in September is calculated to be 86°F (30°C).

What is the average humidity in September?

In September, the average relative humidity is 49%.

How much does it rain in September?

In Nacomis Indian Rancheria, in September, during 2.4 rainfall days, 0.12" (3mm) of precipitation is typically accumulated.

When it does not snow?

In Nacomis Indian Rancheria, snow does not fall in April through October.

What is the average length of the day in September?

In Nacomis Indian Rancheria, the average day length in September is 12h and 25min.

What time are sunrise and sunset in September?

In September, on the first day of the month, sunrise is at 6:41 am and sunset at 7:42 pm. On the last day of the month, sunrise is at 7:08 am and sunset at 6:55 pm PDT.

How many hours of sunshine does Nacomis Indian Rancheria have in September?

The average sunshine duration in September is 11h.

What is the UV index reading in September?

In September, the average daily maximum UV index is 5. A UV Index value of 3 to 5 symbolizes a moderate health threat from unprotected exposure to UV radiation.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Nacomis Indian Rancheria, CA

Average temperature in September - Nacomis Indian Rancheria, CA
  • Average high temperature in September: 84.9°F

The warmest month (with the highest average high temperature) is July (90.1°F).
The month with the lowest average high temperature is December (52.9°F).

  • Average low temperature in September: 54°F

The months with the highest average low temperature are July and August (56.7°F).
The coldest month (with the lowest average low temperature) is December (37.2°F).

Average pressure in September
Nacomis Indian Rancheria, CA

Average pressure in September - Nacomis Indian Rancheria, CA
  • Average pressure in September: 29.92"Hg

The month with the highest atmospheric pressure is January (30.14"Hg).
The months with the lowest atmospheric pressure are June and August (29.91"Hg).

Average wind speed in September
Nacomis Indian Rancheria, CA

Average wind speed in September - Nacomis Indian Rancheria, CA
  • Average wind speed in September: 4.4mph

The windiest months (with the highest average wind speed) are April and May (5.5mph).
The calmest month (with the lowest average wind speed) is November (4.2mph).

Average humidity in September
Nacomis Indian Rancheria, CA

Average humidity in September - Nacomis Indian Rancheria, CA
  • Average humidity in September: 49%

The month with the highest relative humidity is March (75%).
The month with the lowest relative humidity is July (48%).

Average rainfall in September
Nacomis Indian Rancheria, CA

Average rainfall in September - Nacomis Indian Rancheria, CA
  • Average rainfall in September: 0.12"

The wettest month (with the highest rainfall) is February (3.94").
The driest months (with the least rainfall) are July and August (0.04").

Average rainfall days in September
Nacomis Indian Rancheria, CA

Average rainfall days in September - Nacomis Indian Rancheria, CA
  • Average rainfall days in September: 2.4 days

The month with the highest number of rainy days is March (15.2 days).
The month with the least rainy days is July (1.1 days).

Average snowfall in September
Nacomis Indian Rancheria, CA

Average snowfall in September - Nacomis Indian Rancheria, CA
  • Average snowfall in September: 0"

The months with the highest snowfall are January and February (0.47").
The months with the least snowfall are April, May, June, July, August, September and October (0").

Average snowfall days in September
Nacomis Indian Rancheria, CA

Average snowfall days in September - Nacomis Indian Rancheria, CA
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is February (0.8 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).

Average daylight in September /
Average sunshine in September
Nacomis Indian Rancheria, CA

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

The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 30min).

  • Average sunshine in September: 11h and 0min

The month with the most sunshine is July (Average sunshine: 12h and 0min).
The month with the least sunshine is December (Average sunshine: 5h and 18min).

Average sunshine days in September
Nacomis Indian Rancheria, CA

Average sunshine days in September - Nacomis Indian Rancheria, CA
  • Average sunshine days in September: 27.2 days

The month with the most sunshine days is July (29.7 days).
The month with the least sunshine days is March (14.3 days).

Average UV index in September
Nacomis Indian Rancheria, CA

Average UV index in September - Nacomis Indian Rancheria, CA
  • Average UV index in September: 5

The month with the highest UV index is July (UV index 7).
The month with the lowest UV index is November (UV index 2).

Average cloud cover in September
Nacomis Indian Rancheria, CA

Average cloud cover in September - Nacomis Indian Rancheria, CA
  • Average cloud cover in September: 10

The month with the most cloud cover is March (Cloud cover 45).
The month with the least cloud cover is July (Cloud cover 5).

Average visibility in September
Nacomis Indian Rancheria, CA

Average visibility in September - Nacomis Indian Rancheria, CA
  • Average visibility in September: 6mi

The months with the highest visibility are February, April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January, March and December (5mi).

Nacomis Indian Rancheria, California, USA

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