October weather forecast
El Cajon, CA

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Weather in October

The month of October signals autumn in full swing in El Cajon, with weather becoming noticeably cooler, especially during the night. The decrease in cloud cover promotes clear skies, leading to spectacular sunsets that add a unique charm to the city's evenings. However, the drop in temperature does not deter the fun in outdoors events, with the pleasant fall weather catering ideally to various sports and activities. As the month progresses, the receding heat becomes evident. The high temperature in October is a cooler 77.2°F (25.1°C), a notable drop from September's highs, marking a significant change towards the year's end.

Temperature

October signifies a gentle decline in El Cajon's average high-temperature, easing from a moderately hot 82.6°F (28.1°C) in September to a still warm 77.2°F (25.1°C). During the month of October, the nighttime temperature falls to an average of 59°F (15°C).

Humidity

In October, the average relative humidity is 58%.

Rainfall

In El Cajon, during October, the rain falls for 2.7 days and regularly aggregates up to 0.2" (5mm) of precipitation. In El Cajon, during the entire year, the rain falls for 56.1 days and collects up to 8.27" (210mm) of precipitation.

Daylight

In October, the average length of the day is 11h and 21min.
On the first day of the month, sunrise is at 6:42 am and sunset at 6:31 pm. On the last day of October, sunrise is at 7:05 am and sunset at 5:57 pm PDT.

Sunshine

The average sunshine in October is 9.1h.

UV index

The average daily maximum UV index in October is 5. A UV Index reading of 3 to 5 represents a medium health hazard from exposure to the Sun's UV radiation for average individuals.
Note: A maximum high daily UV index of 5 during October translates into the following directions:
Exercise prevention - Precautions against solar damage are endorsed. Avoiding direct sunlight during midday hours helps reduce the risk from intense UV radiation. Tightly woven clothing, when worn loosely, shields effectively against the Sun.
Updated: Aug 28, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are October temperatures?

The high-temperature, in October, in El Cajon, is 77.2°F (25.1°C), while the low-temperature averages to 59°F (15°C). The average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which calculates the temperature value influenced by the moisture in the air, in September is computed to be 84.2°F (29°C).

What is the average humidity in October?

In October, the average relative humidity is 58%.

How many days does it rain in October?

In October, the rain falls for 2.7 days. Throughout October, 0.2" (5mm) of precipitation is accumulated.

What is the average length of the day in October?

The average day length in October is 11h and 21min.

When are sunrise and sunset in October?

On the first day of October, sunrise is at 6:42 am and sunset at 6:31 pm. On the last day of the month, sunrise is at 7:05 am and sunset at 5:57 pm PDT.

How many hours of sunshine does El Cajon have in October?

In El Cajon, the average sunshine duration in October is 9.1h.

What is the UV index intensity in October?

The average daily maximum UV index in October is 5. A UV Index reading of 3 to 5 represents a medium hazard to health 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 October
El Cajon, CA

Average temperature in October - El Cajon, CA
  • Average high temperature in October: 77.2°F

The warmest month (with the highest average high temperature) is August (83.8°F).
The month with the lowest average high temperature is December (63.7°F).

  • Average low temperature in October: 59°F

The month with the highest average low temperature is August (65.8°F).
The coldest month (with the lowest average low temperature) is December (47.8°F).

Average pressure in October
El Cajon, CA

Average pressure in October - El Cajon, CA
  • Average pressure in October: 29.93"Hg

The month with the highest atmospheric pressure is January (30.09"Hg).
The months with the lowest atmospheric pressure are June and September (29.87"Hg).

Average wind speed in October
El Cajon, CA

Average wind speed in October - El Cajon, CA
  • Average wind speed in October: 4.3mph

The windiest month (with the highest average wind speed) is April (5.5mph).
The calmest month (with the lowest average wind speed) is October (4.3mph).

Average humidity in October
El Cajon, CA

Average humidity in October - El Cajon, CA
  • Average humidity in October: 58%

The month with the highest relative humidity is May (66%).
The month with the lowest relative humidity is November (53%).

Average rainfall in October
El Cajon, CA

Average rainfall in October - El Cajon, CA
  • Average rainfall in October: 0.2"

The wettest month (with the highest rainfall) is February (1.81").
The driest month (with the least rainfall) is June (0.04").

Average rainfall days in October
El Cajon, CA

Average rainfall days in October - El Cajon, CA
  • Average rainfall days in October: 2.7 days

The month with the highest number of rainy days is March (7.7 days).
The month with the least rainy days is June (1.4 days).

Average daylight in October /
Average sunshine in October
El Cajon, CA

Average daylight in October / Average sunshine in October - El Cajon, CA
  • Average daylight in October: 11h and 2min

The month with the longest days is June (Average daylight: 14h and 18min).
The month with the shortest days is December (Average daylight: 10h and 0min).

  • Average sunshine in October: 9h and 1min

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 October
El Cajon, CA

Average sunshine days in October - El Cajon, CA
  • Average sunshine days in October: 26.7 days

The month with the most sunshine days is June (27.7 days).
The month with the least sunshine days is February (21.9 days).

Average UV index in October
El Cajon, CA

Average UV index in October - El Cajon, CA
  • Average UV index in October: 5

The months with the highest UV index are June, July, August and September (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 4).

Average cloud cover in October
El Cajon, CA

Average cloud cover in October - El Cajon, CA
  • Average cloud cover in October: 12

The months with the most cloud cover are March and December (Cloud cover 23).
The month with the least cloud cover is August (Cloud cover 7).

Average visibility in October
El Cajon, CA

Average visibility in October - El Cajon, CA
  • Average visibility in October: 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).

El Cajon, California, USA

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