September weather forecast
Lake Elsinore, CA

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The vast valley of the city of Lake Elsinore, California
The vast valley of the city of Lake Elsinore, California

Weather in September

September, the first month of the autumn in Lake Elsinore, is still a warm month, with an average temperature fluctuating between 61.7°F (16.5°C) and 85.3°F (29.6°C).

Temperature

At the start of September, Lake Elsinore's average high-temperature reaches a warm 85.3°F (29.6°C), subtly different from the preceding month. Lake Elsinore's average low-temperature of 61.7°F (16.5°C) in September reflects a considerable decline from the daytime peak.

Heat index

In September, the heat index is calculated to be a hot 87.8°F (31°C). Unrelenting activity during exposure could cause fatigue and potentially lead to heat cramps.
Factoring in the heat index, values are geared towards shaded areas with light breezes. A direct sunlight exposure may boost the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'real feel', is a calculation that merges air temperature and relative humidity to depict the sensation of warmth. The impact of weather on an individual can be subjective, affected by the person's activity and heat perception, which can vary due to elements including wind, clothing, and metabolic differences. Direct exposure to sun rays can potentially augment the heat sensation, elevating the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. Children frequently do not understand the need for recuperation and hydration. Thirst, being a late manifestation of dehydration, underlines the need to hydrate frequently, especially when engaging in prolonged physical exercises.

Humidity

The average relative humidity in September in Lake Elsinore is 51%.

Rainfall

In Lake Elsinore, in September, it is raining for 1.8 days, with typically 0.04" (1mm) of accumulated precipitation. Throughout the year, in Lake Elsinore, there are 34.6 rainfall days, and 2.56" (65mm) of precipitation is accumulated.

Daylight

The average length of the day in September in Lake Elsinore is 12h and 22min.
On the first day of September, sunrise is at 6:23 am and sunset at 7:14 pm. On the last day of the month, sunrise is at 6:43 am and sunset at 6:34 pm PDT.

Sunshine

The average sunshine in September is 10.6h.

UV index

In September, the average daily maximum UV index in Lake Elsinore, California, is 6. A UV Index estimate of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV radiation for the average person.
Note: The maximum UV index of 6 during September leads to these instructions:
Skirt overexposure. People with light complexions might get scorched in under 20 minutes. Avoid direct Sun exposure and stay in the shade between 10 a.m. and 4 p.m., a time when UV radiation is most intense, noting that not all shade structures offer full protection. Employ a hat with a wide brim for robust protection, cutting UV exposure by half.
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Frequently asked questions

Is it hot in Lake Elsinore during September?

The high-temperature, in September, in Lake Elsinore, records 85.3°F (29.6°C), while the low-temperature is 61.7°F (16.5°C). In September, the average heat index (a.k.a. 'real feel', 'apparent temperature'), which factors the actual air temperature with the relative humidity, is calculated to be 87.8°F (31°C).

What is the average humidity in September in Lake Elsinore?

In September, the average relative humidity in Lake Elsinore, California, is 51%.

How much does it rain in Lake Elsinore in September?

In Lake Elsinore, during September, the rain falls for 1.8 days and regularly aggregates up to 0.04" (1mm) of precipitation.

What is the average length of the day in September in Lake Elsinore?

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

When are sunrise and sunset in September in Lake Elsinore?

In September, on the first day of the month, sunrise is at 6:23 am and sunset at 7:14 pm. On the last day of the month, in Lake Elsinore, sunrise is at 6:43 am and sunset at 6:34 pm PDT.

How many hours of sunshine does Lake Elsinore have in September?

In Lake Elsinore, California, the average sunshine duration in September is 10.6h.

What is the UV index reading in September in Lake Elsinore?

In September, the average daily maximum UV index is 6. A UV Index of 6 to 7 symbolizes a high health vulnerability from unprotected exposure to 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
Lake Elsinore, CA

Average temperature in September - Lake Elsinore, CA
  • Average high temperature in September: 85.3°F

The warmest month (with the highest average high temperature) is August (89.1°F).
The month with the lowest average high temperature is December (61.5°F).

  • Average low temperature in September: 61.7°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 (43.7°F).

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Average pressure in September
Lake Elsinore, CA

Average pressure in September - Lake Elsinore, 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 (29.86"Hg).

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Average wind speed in September
Lake Elsinore, CA

Average wind speed in September - Lake Elsinore, CA
  • Average wind speed in September: 4.1mph

The windiest month (with the highest average wind speed) is April (5.4mph).
The calmest months (with the lowest average wind speed) are August and September (4.1mph).

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Average humidity in September
Lake Elsinore, CA

Average humidity in September - Lake Elsinore, CA
  • Average humidity in September: 51%

The month with the highest relative humidity is May (62%).
The months with the lowest relative humidity are August and November (50%).

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Average rainfall in September
Lake Elsinore, CA

Average rainfall in September - Lake Elsinore, CA
  • Average rainfall in September: 0.04"

The wettest month (with the highest rainfall) is February (0.55").
The driest month (with the least rainfall) is June (0").

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Average rainfall days in September
Lake Elsinore, CA

Average rainfall days in September - Lake Elsinore, CA
  • Average rainfall days in September: 1.8 days

The month with the highest number of rainy days is March (6.3 days).
The month with the least rainy days is June (0.8 days).

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Average daylight in September /
Average sunshine in September
Lake Elsinore, CA

Average daylight in September / Average sunshine in September - Lake Elsinore, 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 36min).

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Average sunshine days in September
Lake Elsinore, CA

Average sunshine days in September - Lake Elsinore, CA
  • Average sunshine days in September: 26.6 days

The month with the most sunshine days is June (28.6 days).
The month with the least sunshine days is February (22.8 days).

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Average UV index in September
Lake Elsinore, CA

Average UV index in September - Lake Elsinore, CA
  • Average UV index in September: 6

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

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Average cloud cover in September
Lake Elsinore, CA

Average cloud cover in September - Lake Elsinore, 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).

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Average visibility in September
Lake Elsinore, CA

Average visibility in September - Lake Elsinore, 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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Lake Elsinore, California, USA

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