September weather forecast
Omus, CA

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Weather in September

The first month of the autumn, September, is still a warm month in Omus, California, with temperature in the range of an average high of 82.6°F (28.1°C) and an average low of 53.6°F (12°C).

Temperature

With the onset of September, a modest change to a still moderately hot 82.6°F (28.1°C) from August's 84.6°F (29.2°C) is noted in high-temperature. Omus's September nights see a large temperature deviation, with temperatures resting at a low of 53.6°F (12°C).

Heat index

Throughout September, the heat index is appraised at 84.2°F (29°C). Constant exposure and activity lead to possible fatigue. Prolonged exercise may result in heat cramps.
Remember that heat index calculations are made for conditions in the shade with light wind. The heat index has the potential to rise by 15 Fahrenheit (8 Celsius) degrees with direct sunshine exposure.
Note: The heat index, also known as 'feels like' or 'apparent temperature', gauges the sensation of temperature factoring in the air's moisture content. The experience of temperature can be subjective, varying based on the individual's activity and heat perception, influenced by factors like wind, attire, and metabolic variations. Direct sunlight can potentially raise the heat index by 15 Fahrenheit (8 Celsius) degrees, so it's crucial to consider. Heat index values are particularly meaningful for babies and toddlers. Children usually face more risks than adults as their ability to sweat is less. Additionally, their larger skin surface in relation to their petite bodies and higher heat output due to their activities increases their vulnerability.

Humidity

With an average relative humidity of 57%, September is the least humid month.

Rainfall

In Omus, in September, it is raining for 2.2 days, with typically 0.12" (3mm) of accumulated precipitation. In Omus, during the entire year, the rain falls for 81.2 days and collects up to 19.84" (504mm) of precipitation.

Snowfall

January, March through December are months without snowfall in Omus, California.

Daylight

In Omus, the average length of the day in September is 12h and 25min.
On the first day of September, sunrise is at 6:41 am and sunset at 7:41 pm. On the last day of the month, sunrise is at 7:07 am and sunset at 6:55 pm PDT.

Sunshine

In Omus, the average sunshine in September is 11h.

UV index

The average daily maximum UV index in September is 5. A UV Index estimate of 3 to 5 represents a moderate threat to health from unsafe exposure to UV radiation for average individuals.
Note: A daily high UV index of 5 in September leads to these guidelines:
Undertake protective steps - Obligation to safeguard skin and eyes from harm is in place. Solar radiation peaks around mid-day, so it's wise to limit exposure to the Sun at this time. Combat UV radiation's detrimental effects with sun-safe clothing and UV-blocking eyewear.
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Frequently asked questions

Is it hot in Omus during September?

In September, in Omus, the average high-temperature is 82.6°F (28.1°C), and the average low-temperature is 53.6°F (12°C). In September, the average heat index (a.k.a. 'apparent temperature', 'feels like'), which factors the actual air temperature with the relative humidity, is appraised at 84.2°F (29°C).

What is the least humid month in Omus?

With an average relative humidity of 57%, September is the least humid month in Omus.

What is the average humidity in September in Omus?

In September, the average relative humidity in Omus is 57%.

How many days does it rain in September in Omus?

In Omus, during September, the rain falls for 2.2 days and regularly aggregates up to 0.12" (3mm) of precipitation.

When it does not snow in Omus?

In Omus, California, snow does not fall in January, March through December.

How many hours of daylight does Omus have in September?

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

When are sunrise and sunset in September in Omus?

On the first day of September in Omus, California, sunrise is at 6:41 am and sunset at 7:41 pm. On the last day of the month, sunrise is at 7:07 am and sunset at 6:55 pm PDT.

How many hours of sunshine does Omus have in September?

In Omus, the average sunshine duration in September is 11h.

What is the UV index reading in September in Omus?

The average daily maximum UV index in September is 5. A UV Index reading of 3 to 5 represents a medium hazard to health from exposure to the Sun's 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
Omus, CA

Average temperature in September - Omus, CA
  • Average high temperature in September: 82.6°F

The warmest month (with the highest average high temperature) is July (84.7°F).
The month with the lowest average high temperature is December (55°F).

  • Average low temperature in September: 53.6°F

The month with the highest average low temperature is August (55°F).
The coldest month (with the lowest average low temperature) is December (40.1°F).

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Average pressure in September
Omus, CA

Average pressure in September - Omus, CA
  • Average pressure in September: 29.92"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 (29.92"Hg).

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Average wind speed in September
Omus, CA

Average wind speed in September - Omus, CA
  • Average wind speed in September: 4.7mph

The windiest months (with the highest average wind speed) are April and May (6.2mph).
The calmest month (with the lowest average wind speed) is November (4.5mph).

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Average humidity in September
Omus, CA

Average humidity in September - Omus, CA
  • Average humidity in September: 57%

The month with the highest relative humidity is March (76%).
The month with the lowest relative humidity is September (57%).

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Average rainfall in September
Omus, CA

Average rainfall in September - Omus, CA
  • Average rainfall in September: 0.12"

The wettest month (with the highest rainfall) is February (4.33").
The driest months (with the least rainfall) are July and August (0.04").

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Average rainfall days in September
Omus, CA

Average rainfall days in September - Omus, CA
  • Average rainfall days in September: 2.2 days

The month with the highest number of rainy days is March (14.2 days).
The month with the least rainy days is August (0.8 days).

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Average snowfall in September
Omus, CA

Average snowfall in September - Omus, CA
  • Average snowfall in September: 0"

The month with the highest snowfall is February (0.04").
The months with the least snowfall are January, March, April, May, June, July, August, September, October, November and December (0").

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Average snowfall days in September
Omus, CA

Average snowfall days in September - Omus, CA
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is February (0.1 days).
The months with the least snowfall days are January, March, April, May, June, July, August, September, October, November and December (0 days).

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

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

The month with the longest days is June (Average daylight: 14h and 48min).
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 36min).

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Average sunshine days in September
Omus, CA

Average sunshine days in September - Omus, CA
  • Average sunshine days in September: 27 days

The month with the most sunshine days is July (29.8 days).
The month with the least sunshine days is March (14.8 days).

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Average UV index in September
Omus, CA

Average UV index in September - Omus, CA
  • Average UV index in September: 5

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

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Average cloud cover in September
Omus, CA

Average cloud cover in September - Omus, CA
  • Average cloud cover in September: 9

The month with the most cloud cover is March (Cloud cover 41).
The months with the least cloud cover are July and August (Cloud cover 6).

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Average visibility in September
Omus, CA

Average visibility in September - Omus, 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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Omus, California, USA

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