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    North America

    United States of America weather in September

    North America

    United States of America weather in September

    Tourist destinations in United States of America

    Weather charts for United States of America

    Great Smoky Mountains
    JanFebMarAprMayJunJulAugSepOctNovDec24681012Temperature (° C)-5051015202530Precipitation (mm)0150
    Texas - Coast
    JanFebMarAprMayJunJulAugSepOctNovDecTemperature (° C)05101520253035Precipitation (mm)0170
    Florida - Northwest coast
    JanFebMarAprMayJunJulAugSepOctNovDecTemperature (° C)05101520253035Precipitation (mm)0210
    Data backed by 40 years of history

    We make the most from 40 years of historical weather data to predict the best weather conditions.

    Selection of world's favourite destinations

    Deciding on where to go for a holiday is hard sometimes. Get inspired by the most popular destinations.

    16 500 000 weather records

    We aggregate data from combining multiple weather sources to ensure accuracy of the highest order.

    Countryside in Blue Ridge at dawn
    Galveston in sunny weather with few clouds
    Beach with a lot of people with turquise water in Destin on a day with cloudy weather
    Naples on a cloudy day
    Architecture in Miami in partly cloudy weather
    Edisto Beach at sunset time
    Countryside in Corolla with cloudy sky
    Location near Manzanita with cloudy sky
    Mountain range in Mount Rainier National Park with nice weather and blue sky

    United States of America weather in September

    There is just one region in United States of America in September experiencing the rainy season and this is Florida - Peninsula east. According to September weather statistics, 7 of 24 regions of United States of America have the dry season. These regions are Oregon, Washington, California - West coast, California - South coast, California - Mountains, Wyoming - National parks, Nevada. 22 of 24 regions have the tourist season in United States of America in September. These regions are Great Smoky Mountains, Texas - Coast, Florida - Northwest coast, Florida - Peninsula west, Florida - Peninsula east, South Carolina, North Carolina, Oregon, Washington, California - West coast, California - South coast, California - Mountains, Montana - National parks, Wyoming - National parks, Nevada, Utah - National parks, Arizona - National parks, Delaware, New York, Rhode Island, Michigan, Hawaii.

    The lowest value of the day temperature in September in United States of America can be seen in Alaska with a value of 12.4 °C (54.4 °F). The highest day temperature in United States of America in September can be found in Nevada, where the value of day temperature is 34.6 °C (94.3 °F).

    The lowest night temperature in United States of America in September can be found in Wyoming - National parks, where the value of night temperature is 0.2 °C (32.3 °F). The night temperature in United States of America in September is the highest in Florida - Peninsula east - its value is 23.7 °C (74.6 °F).

    The lowest sea temperature in United States of America in September can be found in Oregon, where the value of sea temperature is 13.8 °C (56.8 °F). The highest value of the sea temperature in United States of America in September can be seen in Florida - Peninsula west with a value of 29.1 °C (84.5 °F).

    The lowest value of the number of rainy days in United States of America in September can be seen in California - South coast with a value of 1 days. The highest number of rainy days in United States of America in September can be found in Alaska, where the value of number of rainy days is 16 days.

    The lowest rainfall amount in September in United States of America can be found in California - South coast, where the value of rainfall amount is 5 mm (0.18 in). The rainfall amount in United States of America in September is the highest in Florida - Peninsula east - its value is 196 mm (7.73 in).

    The wind speed in September in United States of America is the lowest in Great Smoky Mountains - its value is 2.2. The wind speed in September in United States of America is the highest in Hawaii - its value is 5.0.

    The humidity in September in United States of America is the lowest in Nevada - its value is 28 %. In United States of America in September - the region with the highest humidity is Alaska. The value in this region is 80 %.

    In United States of America in September - the region with the lowest number of sun hours (without clouds) is Alaska. The value in this region is 5 hours. The highest value of the number of sun hours (without clouds) in September in United States of America can be seen in Nevada with a value of 11 hours.

    The lowest value of the clear sky percentage in September in United States of America can be seen in Alaska with a value of 39 %. In September in United States of America - the region with the highest clear sky percentage is Nevada. The value in this region is 90 %.

    The lowest day length in United States of America in September can be found in Hawaii, where the value of day length is 12 hours. In September in United States of America - the region with the highest day length is Alaska. The value in this region is 13 hours.