September weather forecast
Empire, CA

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Weather in September

September, the first month of the autumn in Empire, is still a hot month, with an average temperature fluctuating between 90.9°F (32.7°C) and 59.9°F (15.5°C).

Temperature

Empire experiences a moderate temperature shift at the start of September, with average high-temperatures adjusting a bit from a sweltering 96.4°F (35.8°C) in August to a tropical 90.9°F (32.7°C). Empire's September nights represent a significant downturn from the day's heat, with an average temperature of 59.9°F (15.5°C).

Heat index

September's average heat index is calculated to be a tropical 93.2°F (34°C). Undertake additional precautions, heat cramps and heat exhaustion could happen. Heatstroke could occur from sustained activity.
It is worth noting that heat index values are gauged for conditions in the shade and light breezes. Direct sunlight might cause an increase of up to 15 Fahrenheit (8 Celsius) degrees in the heat index.
Note: The heat index, also known as 'felt air temperature' or 'feels like', takes into account both air temperature and humidity to illustrate what people actually feel. One's perception of weather can be shaped by other factors, involving metabolic differences, pregnancy, and physical exertion. Direct sunlight exposure should be noted as it has the potential to increase the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are essentially critical for children. Children frequently underestimate the necessity to rest and hydrate. Thirst is a late sign of dehydration - thus, it is vital to stay hydrated, particularly during lengthy physical exercises.

Humidity

In September, the average relative humidity is 41%.

Rainfall

In September, in Empire, the rain falls for 1.6 days. Throughout September, 0.08" (2mm) of precipitation is accumulated. Throughout the year, there are 54.3 rainfall days, and 6.54" (166mm) of precipitation is accumulated.

Daylight

The average length of the day in September in Empire is 12h and 25min.
On the first day of September, sunrise is at 6:34 am and sunset at 7:32 pm. On the last day of the month, sunrise is at 6:59 am and sunset at 6:47 pm PDT.

Sunshine

In Empire, the average sunshine in September is 11.5h.

UV index

The average daily maximum UV index in September in Empire is 6. A UV Index of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV rays for the average person.
Note: The daily high UV index of 6 in September translates into this advice:
Persist with safeguards and heed sun safety doctrines. Keeping sunburn at bay is of prime importance. Remember that UV radiation from the Sun is strongest between 10 a.m. and 4 p.m. Make an effort to limit direct sun exposure during this time. A hat with a broad brim is indispensable, filtering out up to half of UV rays.
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Frequently asked questions

How hot does it get in Empire in September?

An average high-temperature, in September, in Empire, is 90.9°F (32.7°C) and the average low-temperature is 59.9°F (15.5°C). In September, the average heat index (a.k.a. 'feels like', 'real feel'), which combines relative humidity and air temperature, is calculated to be 93.2°F (34°C).

What is the average humidity in September in Empire?

The average relative humidity in September in Empire, California, is 41%.

How many days does it rain in September in Empire?

In September, the rain falls for 1.6 days. Throughout September, 0.08" (2mm) of precipitation is accumulated.

How many hours of daylight does Empire have in September?

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

When are sunrise and sunset in September in Empire?

In September, on the first day of the month, sunrise is at 6:34 am and sunset at 7:32 pm. On the last day of the month, in Empire, California, sunrise is at 6:59 am and sunset at 6:47 pm PDT.

How many hours of sunshine does Empire have in September?

In Empire, California, the average sunshine duration in September is 11.5h.

What is the UV index reading in September in Empire?

The average daily maximum UV index in September in Empire, California, is 6. A UV Index value of 6 to 7 symbolizes a high health threat from exposure to the Sun's 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
Empire, CA

Average temperature in September - Empire, CA
  • Average high temperature in September: 90.9°F

The warmest month (with the highest average high temperature) is July (97.7°F).
The month with the lowest average high temperature is December (55.6°F).

  • Average low temperature in September: 59.9°F

The month with the highest average low temperature is July (62.1°F).
The coldest months (with the lowest average low temperature) are January and December (41.9°F).

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Average pressure in September
Empire, CA

Average pressure in September - Empire, CA
  • Average pressure in September: 29.93"Hg

The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).

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Average wind speed in September
Empire, CA

Average wind speed in September - Empire, CA
  • Average wind speed in September: 5.8mph

The windiest month (with the highest average wind speed) is June (7.3mph).
The calmest month (with the lowest average wind speed) is November (5.2mph).

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Average humidity in September
Empire, CA

Average humidity in September - Empire, CA
  • Average humidity in September: 41%

The month with the highest relative humidity is January (72%).
The month with the lowest relative humidity is July (37%).

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Average rainfall in September
Empire, CA

Average rainfall in September - Empire, CA
  • Average rainfall in September: 0.08"

The wettest month (with the highest rainfall) is March (1.3").
The driest months (with the least rainfall) are July and August (0.04").

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Average rainfall days in September
Empire, CA

Average rainfall days in September - Empire, CA
  • Average rainfall days in September: 1.6 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).

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

Average daylight in September / Average sunshine in September - Empire, 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 3min

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

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Average sunshine days in September
Empire, CA

Average sunshine days in September - Empire, CA
  • Average sunshine days in September: 27.1 days

The month with the most sunshine days is August (29.2 days).
The month with the least sunshine days is March (19.6 days).

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Average UV index in September
Empire, CA

Average UV index in September - Empire, CA
  • Average UV index in September: 6

The months with the highest UV index are June, July and August (UV index 7).
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
Empire, CA

Average cloud cover in September - Empire, CA
  • Average cloud cover in September: 6

The month with the most cloud cover is March (Cloud cover 33).
The month with the least cloud cover is July (Cloud cover 4).

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Average visibility in September
Empire, CA

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

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