September weather forecast
Menifee Lakes, CA

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Weather in September

The first month of the autumn, September, is still a warm month in Menifee Lakes, California, with an average temperature varying between 85.8°F (29.9°C) and 61.3°F (16.3°C).

Temperature

With September's advent, Menifee Lakes, California, sees an average high-temperature of a moderately hot 85.8°F (29.9°C), subtly shifted from August's 89.6°F (32°C). The month of September sees a significant daily temperature drop, recording an average low-temperature of 61.3°F (16.3°C) in Menifee Lakes.

Heat index

For September, the heat index is evaluated at a hot 87.8°F (31°C). If activity and exposure persist, they could induce fatigue, leading to possible heat cramps.
Consider that heat index readings are for situations in the shade and light wind. The heat index might be elevated by 15 Fahrenheit (8 Celsius) degrees due to direct sun exposure.
Note: The heat index, also known as 'feels like' or 'felt air temperature', is calculated by taking the relative humidity value for a specific location and factoring it into the air temperature reading. The individual's impression of temperature can be affected by numerous factors such as metabolic variations, physical exertion, and attire. Exposure to direct sun rays can influence the heat you feel, pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values remain especially vital for babies and toddlers. Young ones often do not realize the necessity to rest and replenish their fluids. Thirst is a delayed indication of dehydration - keeping hydrated, particularly in prolonged physical activity, is crucial.

Humidity

In Menifee Lakes, the average relative humidity in September is 49%.

Rainfall

In September, in Menifee Lakes, the rain falls for 3.5 days. Throughout September, 0.2" (5mm) of precipitation is accumulated. Throughout the year, in Menifee Lakes, there are 55.7 rainfall days, and 7.05" (179mm) of precipitation is accumulated.

Snowfall

January, March through December are months without snowfall.

Daylight

In September, the average length of the day in Menifee Lakes is 12h and 22min.
On the first day of September, sunrise is at 6:23 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.

Sunshine

The average sunshine in September is 10.6h.

UV index

In Menifee Lakes, the average daily maximum UV index in September is 6. A UV Index value of 6 to 7 symbolizes a high health vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.
Note: The daily high UV index of 6 in September translates into this advice:
Guard oneself from overexposure. Defence against sun injury is vital. Stay in the shade and avoid direct Sun exposure from 10 a.m. to 4 p.m., a period when UV radiation is particularly strong, noting that parasols or canopies may not offer total sun protection. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation.
Updated: Feb 10, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How hot is it in Menifee Lakes in September?

In September, the average high-temperature and low-temperature are 85.8°F (29.9°C) and 61.3°F (16.3°C) respectively. In September, the average heat index (a.k.a. 'apparent temperature', 'real feel'), which factors the actual air temperature with the relative humidity, is evaluated at 87.8°F (31°C).

What is the average humidity in September in Menifee Lakes?

In September, the average relative humidity in Menifee Lakes is 49%.

How many days does it rain in September in Menifee Lakes?

In Menifee Lakes, California, during September, the rain falls for 3.5 days and regularly aggregates up to 0.2" (5mm) of precipitation.

When it does not snow in Menifee Lakes?

January, March through December are months without snowfall in Menifee Lakes.

What is the average length of the day in September in Menifee Lakes?

In Menifee Lakes, California, the average day length in September is 12h and 22min.

When are sunrise and sunset in September in Menifee Lakes?

In September, on the first day of the month, sunrise is at 6:23 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 Menifee Lakes have in September?

In September, the average sunshine duration in Menifee Lakes is 10.6h.

How high is the UV index in September in Menifee Lakes?

The average daily maximum UV index in September in Menifee Lakes, California, is 6. A UV Index of 6 to 7 symbolizes a high hazard to health from unsafe exposure to Sun's UV rays.
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
Menifee Lakes, CA

Average temperature in September - Menifee Lakes, CA
  • Average high temperature in September: 85.8°F

The warmest month (with the highest average high temperature) is August (89.6°F).
The month with the lowest average high temperature is December (61°F).

  • Average low temperature in September: 61.3°F

The month with the highest average low temperature is August (63.3°F).
The coldest month (with the lowest average low temperature) is December (43°F).

Average pressure in September
Menifee Lakes, CA

Average pressure in September - Menifee Lakes, CA
  • Average pressure in September: 29.87"Hg

The month with the highest atmospheric pressure is January (30.1"Hg).
The month with the lowest atmospheric pressure is June (29.85"Hg).

Average wind speed in September
Menifee Lakes, CA

Average wind speed in September - Menifee Lakes, CA
  • Average wind speed in September: 4.2mph

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

Average humidity in September
Menifee Lakes, CA

Average humidity in September - Menifee Lakes, CA
  • Average humidity in September: 49%

The month with the highest relative humidity is May (60%).
The month with the lowest relative humidity is August (47%).

Average rainfall in September
Menifee Lakes, CA

Average rainfall in September - Menifee Lakes, CA
  • Average rainfall in September: 0.2"

The wettest month (with the highest rainfall) is December (1.38").
The driest month (with the least rainfall) is June (0.04").

Average rainfall days in September
Menifee Lakes, CA

Average rainfall days in September - Menifee Lakes, CA
  • Average rainfall days in September: 3.5 days

The month with the highest number of rainy days is March (7.2 days).
The month with the least rainy days is June (1.3 days).

Average snowfall in September
Menifee Lakes, CA

Average snowfall in September - Menifee Lakes, 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").

Average snowfall days in September
Menifee Lakes, CA

Average snowfall days in September - Menifee Lakes, CA
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is February (0.2 days).
The months with the least snowfall days are January, March, April, May, June, July, August, September, October, November and December (0 days).

Average daylight in September /
Average sunshine in September
Menifee Lakes, CA

Average daylight in September / Average sunshine in September - Menifee Lakes, 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: 10h and 0min).

  • Average sunshine in September: 10h and 4min

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 42min).

Average sunshine days in September
Menifee Lakes, CA

Average sunshine days in September - Menifee Lakes, CA
  • Average sunshine days in September: 23.4 days

The month with the most sunshine days is June (26.9 days).
The month with the least sunshine days is February (21.6 days).

Average UV index in September
Menifee Lakes, CA

Average UV index in September - Menifee Lakes, 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).

Average cloud cover in September
Menifee Lakes, CA

Average cloud cover in September - Menifee Lakes, CA
  • Average cloud cover in September: 8

The months with the most cloud cover are March and December (Cloud cover 24).
The month with the least cloud cover is August (Cloud cover 5).

Average visibility in September
Menifee Lakes, CA

Average visibility in September - Menifee Lakes, 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).

Menifee Lakes, California, USA

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