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September weather forecast in Fountain Valley

Average data for 10 years

  • 30 August, Sunday. morning, 27°; night, 19°; ; Feels like +23°; Pressure 758 millimeters of mercury; Humidity 71%; Wind speed 4.1 Meters per second, south-westerly; Daytime water temperature +26°

  • 31 August, Monday. morning, 27°; night, 19°; ; Feels like +23°; Pressure 758 millimeters of mercury; Humidity 72%; Wind speed 4.3 Meters per second, south-westerly; Daytime water temperature +26°

  • 1 September, Tuesday. morning, 27°; night, 19°; ; Feels like +23°; Pressure 758 millimeters of mercury; Humidity 72%; Wind speed 4.3 Meters per second, south-westerly; Daytime water temperature +26°

  • 2 September, Wednesday. morning, 28°; night, 19°; ; Feels like +23°; Pressure 758 millimeters of mercury; Humidity 72%; Wind speed 4.4 Meters per second, south-westerly; Daytime water temperature +26°

  • 3 September, Thursday. morning, 28°; night, 19°; ; Feels like +23°; Pressure 758 millimeters of mercury; Humidity 71%; Wind speed 4.6 Meters per second, south-westerly; Daytime water temperature +26°

  • 4 September, Friday. morning, 28°; night, 19°; ; Feels like +23°; Pressure 758 millimeters of mercury; Humidity 71%; Wind speed 4.5 Meters per second, south-westerly; Daytime water temperature +25°

  • 5 September, Saturday. morning, 28°; night, 19°; ; Feels like +24°; Pressure 758 millimeters of mercury; Humidity 71%; Wind speed 4.4 Meters per second, south-westerly; Daytime water temperature +26°

  • 6 September, Sunday. morning, 28°; night, 19°; ; Feels like +24°; Pressure 759 millimeters of mercury; Humidity 70%; Wind speed 4.3 Meters per second, south-westerly; Daytime water temperature +26°

  • 7 September, Monday. morning, 28°; night, 19°; ; Feels like +23°; Pressure 759 millimeters of mercury; Humidity 72%; Wind speed 4.4 Meters per second, south-westerly; Daytime water temperature +25°

  • 8 September, Tuesday. morning, 27°; night, 19°; ; Feels like +23°; Pressure 758 millimeters of mercury; Humidity 72%; Wind speed 4.5 Meters per second, south-westerly; Daytime water temperature +25°

  • 9 September, Wednesday. morning, 27°; night, 18°; ; Feels like +23°; Pressure 758 millimeters of mercury; Humidity 71%; Wind speed 4.5 Meters per second, south-westerly; Daytime water temperature +25°

  • 10 September, Thursday. morning, 26°; night, 18°; ; Feels like +22°; Pressure 759 millimeters of mercury; Humidity 72%; Wind speed 4.4 Meters per second, south-westerly; Daytime water temperature +25°

  • 11 September, Friday. morning, 26°; night, 18°; ; Feels like +22°; Pressure 759 millimeters of mercury; Humidity 72%; Wind speed 4.4 Meters per second, south-westerly; Daytime water temperature +25°

  • 12 September, Saturday. morning, 26°; night, 18°; ; Feels like +22°; Pressure 759 millimeters of mercury; Humidity 73%; Wind speed 4.4 Meters per second, south-westerly; Daytime water temperature +25°

  • 13 September, Sunday. morning, 26°; night, 18°; ; Feels like +21°; Pressure 759 millimeters of mercury; Humidity 74%; Wind speed 4.4 Meters per second, south-westerly; Daytime water temperature +24°

  • 14 September, Monday. morning, 26°; night, 18°; ; Feels like +21°; Pressure 759 millimeters of mercury; Humidity 73%; Wind speed 4.3 Meters per second, south-westerly; Daytime water temperature +25°

  • 15 September, Tuesday. morning, 26°; night, 18°; ; Feels like +22°; Pressure 759 millimeters of mercury; Humidity 74%; Wind speed 4.3 Meters per second, south-westerly; Daytime water temperature +25°

  • 16 September, Wednesday. morning, 26°; night, 18°; ; Feels like +21°; Pressure 759 millimeters of mercury; Humidity 73%; Wind speed 4.1 Meters per second, south-westerly; Daytime water temperature +25°

  • 17 September, Thursday. morning, 25°; night, 17°; ; Feels like +21°; Pressure 759 millimeters of mercury; Humidity 74%; Wind speed 4 Meters per second, south-westerly; Daytime water temperature +24°

  • 18 September, Friday. morning, 25°; night, 17°; ; Feels like +21°; Pressure 759 millimeters of mercury; Humidity 74%; Wind speed 4.1 Meters per second, south-westerly; Daytime water temperature +24°

  • 19 September, Saturday. morning, 25°; night, 17°; ; Feels like +21°; Pressure 759 millimeters of mercury; Humidity 75%; Wind speed 4.1 Meters per second, south-westerly; Daytime water temperature +24°

  • 20 September, Sunday. morning, 25°; night, 17°; rain; Feels like +21°; Pressure 759 millimeters of mercury; Humidity 74%; Wind speed 4.3 Meters per second, south-westerly; Daytime water temperature +24°

  • 21 September, Monday. morning, 25°; night, 17°; ; Feels like +21°; Pressure 759 millimeters of mercury; Humidity 75%; Wind speed 4.4 Meters per second, south-westerly; Daytime water temperature +24°

  • 22 September, Tuesday. morning, 26°; night, 17°; ; Feels like +21°; Pressure 759 millimeters of mercury; Humidity 74%; Wind speed 4.5 Meters per second, south-westerly; Daytime water temperature +25°

  • 23 September, Wednesday. morning, 26°; night, 17°; ; Feels like +21°; Pressure 759 millimeters of mercury; Humidity 73%; Wind speed 4.4 Meters per second, south-westerly; Daytime water temperature +26°

  • 24 September, Thursday. morning, 26°; night, 17°; ; Feels like +21°; Pressure 759 millimeters of mercury; Humidity 72%; Wind speed 4.4 Meters per second, south-westerly; Daytime water temperature +26°

  • 25 September, Friday. morning, 26°; night, 17°; ; Feels like +21°; Pressure 759 millimeters of mercury; Humidity 73%; Wind speed 4.4 Meters per second, south-westerly; Daytime water temperature +26°

  • 26 September, Saturday. morning, 25°; night, 17°; ; Feels like +21°; Pressure 759 millimeters of mercury; Humidity 73%; Wind speed 4.3 Meters per second, south-westerly; Daytime water temperature +27°

  • 27 September, Sunday. morning, 25°; night, 17°; ; Feels like +21°; Pressure 759 millimeters of mercury; Humidity 74%; Wind speed 4 Meters per second, south-westerly; Daytime water temperature +26°

  • 28 September, Monday. morning, 25°; night, 17°; ; Feels like +21°; Pressure 759 millimeters of mercury; Humidity 74%; Wind speed 4.1 Meters per second, south-westerly; Daytime water temperature +25°

  • 29 September, Tuesday. morning, 26°; night, 17°; ; Feels like +21°; Pressure 759 millimeters of mercury; Humidity 72%; Wind speed 4 Meters per second, south-westerly; Daytime water temperature +25°

  • 30 September, Wednesday. morning, 26°; night, 17°; ; Feels like +21°; Pressure 759 millimeters of mercury; Humidity 72%; Wind speed 4.3 Meters per second, south-westerly; Daytime water temperature +26°

  • 1 October, Thursday. morning, 26°; night, 17°; ; Feels like +21°; Pressure 759 millimeters of mercury; Humidity 71%; Wind speed 4.1 Meters per second, south-westerly; Daytime water temperature +26°

  • 2 October, Friday. morning, 25°; night, 17°; ; Feels like +21°; Pressure 759 millimeters of mercury; Humidity 72%; Wind speed 4.1 Meters per second, south-westerly; Daytime water temperature +24°

  • 3 October, Saturday. morning, 24°; night, 16°; ; Feels like +20°; Pressure 759 millimeters of mercury; Humidity 73%; Wind speed 4.1 Meters per second, south-westerly; Daytime water temperature +23°

In September, the weather in Fountain Valley is typically warm. The average daily high in September is 22 degrees above zero. On average, Fountain Valley has 23 sunnyand 1 rainy day in September. September along with July and August is considered the most comfortable time to visit Fountain Valley.