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September weather forecast in El Cajon

Average data for 10 years

  • 30 August, Sunday. morning, 29°; night, 19°; ; Feels like +24°; Pressure 733 millimeters of mercury; Humidity 66%; Wind speed 3.5 Meters per second, westerly; Daytime water temperature +21°

  • 31 August, Monday. morning, 29°; night, 19°; ; Feels like +24°; Pressure 733 millimeters of mercury; Humidity 66%; Wind speed 3.7 Meters per second, westerly; Daytime water temperature +22°

  • 1 September, Tuesday. morning, 29°; night, 19°; ; Feels like +24°; Pressure 733 millimeters of mercury; Humidity 65%; Wind speed 3.7 Meters per second, south-westerly; Daytime water temperature +22°

  • 2 September, Wednesday. morning, 29°; night, 19°; ; Feels like +24°; Pressure 733 millimeters of mercury; Humidity 67%; Wind speed 3.7 Meters per second, westerly; Daytime water temperature +22°

  • 3 September, Thursday. morning, 29°; night, 19°; ; Feels like +24°; Pressure 734 millimeters of mercury; Humidity 68%; Wind speed 3.9 Meters per second, westerly; Daytime water temperature +22°

  • 4 September, Friday. morning, 29°; night, 19°; ; Feels like +24°; Pressure 733 millimeters of mercury; Humidity 68%; Wind speed 3.9 Meters per second, westerly; Daytime water temperature +21°

  • 5 September, Saturday. morning, 29°; night, 19°; ; Feels like +24°; Pressure 733 millimeters of mercury; Humidity 66%; Wind speed 3.5 Meters per second, westerly; Daytime water temperature +21°

  • 6 September, Sunday. morning, 29°; night, 19°; ; Feels like +24°; Pressure 734 millimeters of mercury; Humidity 65%; Wind speed 3.7 Meters per second, westerly; Daytime water temperature +21°

  • 7 September, Monday. morning, 29°; night, 19°; ; Feels like +24°; Pressure 734 millimeters of mercury; Humidity 66%; Wind speed 3.7 Meters per second, westerly; Daytime water temperature +21°

  • 8 September, Tuesday. morning, 28°; night, 18°; ; Feels like +24°; Pressure 733 millimeters of mercury; Humidity 67%; Wind speed 3.7 Meters per second, westerly; Daytime water temperature +21°

  • 9 September, Wednesday. morning, 28°; night, 18°; ; Feels like +23°; Pressure 733 millimeters of mercury; Humidity 66%; Wind speed 3.9 Meters per second, westerly; Daytime water temperature +21°

  • 10 September, Thursday. morning, 27°; night, 18°; rain; Feels like +23°; Pressure 733 millimeters of mercury; Humidity 68%; Wind speed 3.7 Meters per second, westerly; Daytime water temperature +21°

  • 11 September, Friday. morning, 28°; night, 17°; ; Feels like +23°; Pressure 734 millimeters of mercury; Humidity 67%; Wind speed 3.7 Meters per second, westerly; Daytime water temperature +21°

  • 12 September, Saturday. morning, 27°; night, 17°; ; Feels like +22°; Pressure 734 millimeters of mercury; Humidity 67%; Wind speed 3.7 Meters per second, westerly; Daytime water temperature +21°

  • 13 September, Sunday. morning, 27°; night, 17°; ; Feels like +22°; Pressure 733 millimeters of mercury; Humidity 68%; Wind speed 3.7 Meters per second, westerly; Daytime water temperature +21°

  • 14 September, Monday. morning, 27°; night, 17°; ; Feels like +22°; Pressure 733 millimeters of mercury; Humidity 68%; Wind speed 3.7 Meters per second, westerly; Daytime water temperature +21°

  • 15 September, Tuesday. morning, 27°; night, 17°; ; Feels like +22°; Pressure 734 millimeters of mercury; Humidity 68%; Wind speed 3.7 Meters per second, westerly; Daytime water temperature +21°

  • 16 September, Wednesday. morning, 27°; night, 17°; ; Feels like +21°; Pressure 734 millimeters of mercury; Humidity 68%; Wind speed 3.5 Meters per second, westerly; Daytime water temperature +21°

  • 17 September, Thursday. morning, 26°; night, 16°; ; Feels like +21°; Pressure 734 millimeters of mercury; Humidity 68%; Wind speed 3.5 Meters per second, westerly; Daytime water temperature +21°

  • 18 September, Friday. morning, 26°; night, 16°; ; Feels like +21°; Pressure 734 millimeters of mercury; Humidity 68%; Wind speed 3.7 Meters per second, westerly; Daytime water temperature +21°

  • 19 September, Saturday. morning, 26°; night, 16°; ; Feels like +21°; Pressure 733 millimeters of mercury; Humidity 69%; Wind speed 3.7 Meters per second, westerly; Daytime water temperature +21°

  • 20 September, Sunday. morning, 26°; night, 16°; rain; Feels like +21°; Pressure 733 millimeters of mercury; Humidity 70%; Wind speed 3.5 Meters per second, westerly; Daytime water temperature +21°

  • 21 September, Monday. morning, 26°; night, 16°; ; Feels like +20°; Pressure 734 millimeters of mercury; Humidity 70%; Wind speed 3.7 Meters per second, westerly; Daytime water temperature +21°

  • 22 September, Tuesday. morning, 26°; night, 16°; ; Feels like +20°; Pressure 734 millimeters of mercury; Humidity 67%; Wind speed 3.7 Meters per second, south-westerly; Daytime water temperature +21°

  • 23 September, Wednesday. morning, 27°; night, 16°; ; Feels like +21°; Pressure 734 millimeters of mercury; Humidity 65%; Wind speed 3.7 Meters per second, westerly; Daytime water temperature +21°

  • 24 September, Thursday. morning, 28°; night, 16°; ; Feels like +21°; Pressure 734 millimeters of mercury; Humidity 64%; Wind speed 3.7 Meters per second, westerly; Daytime water temperature +21°

  • 25 September, Friday. morning, 27°; night, 17°; ; Feels like +21°; Pressure 734 millimeters of mercury; Humidity 65%; Wind speed 3.7 Meters per second, westerly; Daytime water temperature +21°

  • 26 September, Saturday. morning, 26°; night, 17°; ; Feels like +21°; Pressure 734 millimeters of mercury; Humidity 67%; Wind speed 3.7 Meters per second, westerly; Daytime water temperature +21°

  • 27 September, Sunday. morning, 27°; night, 16°; ; Feels like +21°; Pressure 734 millimeters of mercury; Humidity 67%; Wind speed 3.5 Meters per second, westerly; Daytime water temperature +21°

  • 28 September, Monday. morning, 27°; night, 16°; ; Feels like +21°; Pressure 734 millimeters of mercury; Humidity 66%; Wind speed 3.5 Meters per second, westerly; Daytime water temperature +21°

  • 29 September, Tuesday. morning, 26°; night, 16°; ; Feels like +20°; Pressure 734 millimeters of mercury; Humidity 65%; Wind speed 3.7 Meters per second, westerly; Daytime water temperature +21°

  • 30 September, Wednesday. morning, 27°; night, 16°; ; Feels like +21°; Pressure 734 millimeters of mercury; Humidity 63%; Wind speed 3.5 Meters per second, westerly; Daytime water temperature +21°

  • 1 October, Thursday. morning, 27°; night, 16°; ; Feels like +21°; Pressure 734 millimeters of mercury; Humidity 63%; Wind speed 3.5 Meters per second, westerly; Daytime water temperature +21°

  • 2 October, Friday. morning, 26°; night, 15°; ; Feels like +20°; Pressure 734 millimeters of mercury; Humidity 65%; Wind speed 3.5 Meters per second, westerly; Daytime water temperature +21°

  • 3 October, Saturday. morning, 25°; night, 15°; ; Feels like +19°; Pressure 734 millimeters of mercury; Humidity 66%; Wind speed 3.7 Meters per second, south-westerly; Daytime water temperature +21°

In September, the weather in El Cajon is typically warm. The average daily high in September is 23 degrees above zero. On average, El Cajon has 23 sunnyand 2 rainy days in September. September along with June, July, and August is considered the most comfortable time to visit El Cajon.