September weather forecast
University Village, CA

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Weather in September

The first month of the autumn, September, is still a hot month in University Village, California, with an average temperature varying between 61.7°F (16.5°C) and 86.2°F (30.1°C).

Temperature

The beginning of September records an average high-temperature of a still tropical 86.2°F (30.1°C), marking a negligible difference from August's 90.3°F (32.4°C). Nightly readings in September display a noticeable downturn from daily highs in University Village, with the average low-temperature registering a comfortable 61.7°F (16.5°C).

Heat index

The heat index in September is calculated to be a hot 86°F (30°C). If one remains active during constant exposure, it might cause exhaustion and heat cramps.
Heat index's context suggests values are appropriate for shady areas and slight breezes. Under direct sunshine, the heat index values might be elevated by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', takes into account both air temperature and humidity to illustrate what people actually feel. This effect tends to be personal, with the weather perception differing among individuals due to variations in body mass, height, and exertion. Realize that direct exposure to sunlight can augment the felt heat, leading to a potential increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are essentially critical for children. Kids are generally in more danger than adults because they perspire less. Their large skin surface area compared to their small bodies and the excessive heat due to their actions raises their risk.

Humidity

In September, the average relative humidity is 40%.

Rainfall

In University Village, during September, the rain falls for 2.5 days and regularly aggregates up to 0.16" (4mm) of precipitation. In University Village, during the entire year, the rain falls for 49.1 days and collects up to 6.5" (165mm) of precipitation.

Snowfall

January, March through December are months without snowfall in University Village.

Daylight

In September, the average length of the day is 12h and 22min.
On the first day of the month, sunrise is at 6:22 am and sunset at 7:13 pm. On the last day of September, in University Village, sunrise is at 6:42 am and sunset at 6:33 pm PDT.

Sunshine

In September, the average sunshine is 10.6h.

UV index

The average daily maximum UV index in September in University Village is 6. A UV Index estimate of 6 to 7 represents a high health hazard from unsafe exposure to UV radiation for the ordinary person.
Note: In September, the average maximum UV index of 6 translates into the following recommendations:
Resist overexposure. Safeguarding from solar damage is indispensable. The Sun's UV radiation is most potent between 10 a.m. and 4 p.m. Try to limit direct exposure to the Sun during this period. Outfit yourself in sun-safe attire, like long sleeves, pants, a hat, and UV-blocking sunglasses.
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Frequently asked questions

How hot is it in University Village in September?

In September, the average high-temperature and low-temperature are 86.2°F (30.1°C) and 61.7°F (16.5°C) respectively. In September, the average heat index (a.k.a. 'real feel', 'feels like'), which takes the relative humidity and factors it into the air temperature reading, is calculated to be 86°F (30°C).

What is the average humidity in September in University Village?

In University Village, California, the average relative humidity in September is 40%.

How many days does it rain in September in University Village?

In University Village, California, in September, during 2.5 rainfall days, 0.16" (4mm) of precipitation is typically accumulated.

When it does not snow in University Village?

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

What is the average length of the day in September in University Village?

The average day length in September in University Village is 12h and 22min.

What time are sunrise and sunset in September in University Village?

In September, on the first day of the month, sunrise is at 6:22 am and sunset at 7:13 pm. On the last day of the month, sunrise is at 6:42 am and sunset at 6:33 pm PDT.

How many hours of sunshine does University Village have in September?

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

How high is the UV index in September in University Village?

In September, the average daily maximum UV index in University Village is 6. A UV Index of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV radiation.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
University Village, CA

Average temperature in September - University Village, CA
  • Average high temperature in September: 86.2°F

The warmest months (with the highest average high temperature) are July and August (90.3°F).
The month with the lowest average high temperature is December (58.8°F).

  • Average low temperature in September: 61.7°F

The month with the highest average low temperature is August (64.2°F).
The coldest month (with the lowest average low temperature) is December (41.4°F).

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Average pressure in September
University Village, CA

Average pressure in September - University Village, CA
  • Average pressure in September: 29.86"Hg

The month with the highest atmospheric pressure is January (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.84"Hg).

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Average wind speed in September
University Village, CA

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

The windiest month (with the highest average wind speed) is April (6.3mph).
The calmest month (with the lowest average wind speed) is September (4.7mph).

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Average humidity in September
University Village, CA

Average humidity in September - University Village, CA
  • Average humidity in September: 40%

The month with the highest relative humidity is February (53%).
The month with the lowest relative humidity is August (37%).

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Average rainfall in September
University Village, CA

Average rainfall in September - University Village, CA
  • Average rainfall in September: 0.16"

The wettest month (with the highest rainfall) is December (1.42").
The driest month (with the least rainfall) is June (0.04").

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Average rainfall days in September
University Village, CA

Average rainfall days in September - University Village, CA
  • Average rainfall days in September: 2.5 days

The month with the highest number of rainy days is March (6.7 days).
The month with the least rainy days is June (1.3 days).

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Average snowfall days in September
University Village, CA

Average snowfall days in September - University Village, 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
University Village, CA

Average daylight in September / Average sunshine in September - University Village, 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: 9h and 54min).

  • Average sunshine in September: 10h and 4min

The month with the most sunshine is July (Average sunshine: 12h and 12min).
The month with the least sunshine is December (Average sunshine: 6h and 48min).

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Average sunshine days in September
University Village, CA

Average sunshine days in September - University Village, CA
  • Average sunshine days in September: 25.1 days

The month with the most sunshine days is June (28 days).
The month with the least sunshine days is February (21.3 days).

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Average UV index in September
University Village, CA

Average UV index in September - University Village, CA
  • Average UV index in September: 6

The month with the highest UV index is July (UV index 7).
The month with the lowest UV index is December (UV index 3).

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Average cloud cover in September
University Village, CA

Average cloud cover in September - University Village, CA
  • Average cloud cover in September: 6

The months with the most cloud cover are February, March and December (Cloud cover 22).
The month with the least cloud cover is August (Cloud cover 5).

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Average visibility in September
University Village, CA

Average visibility in September - University Village, 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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University Village, California, USA

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