Weather in United States in September

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Visiting United States in September

September is one of the best months to visit United States for the best beach weather. It has the most sunshine and best sunbathing and swimming conditions of the year.

September has average maximum temperatures of 27°C (80°F) which is very warm and perfect for sunbathing on clear days. The sunshine percentage is 65.5% making it sunny but overcast at times. The hours of sunshine per day are 8.1hrs making the days long and bright. September has total rainfall of 7.7cm (3.0inches) making it mostly dry with only intermittent light showers. There are only 10.5 days with some rainfall so you can still enjoy the beach on the majority of days. Sea temperatures are a warm 23°C (74°F). September is a good month for swimming in United States with comfortable temperatures for most people.

Also consider visiting United States in one of the other best months of June, July, August, for the best beach weather.

Also consider one of our other suggestions for September.

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Can you sunbathe in United States in September?

Yes, September is a good time for sunbathing in United States.

September has average maximum temperatures of 27°C (80°F) which is very warm and perfect for sunbathing on clear days. The sunshine percentage is 65.5% making it sunny but overcast at times. The hours of sunshine per day are 8.1hrs making the days long and bright. September has total rainfall of 7.7cm (3.0inches) making it mostly dry with only intermittent light showers. There are only 10.5 days with some rainfall so you can still enjoy the beach on the majority of days.

More about September temperature and sunshine.

Can you swim in United States in September?

Yes, September is a good month for swimming in United States with warm sea temperatures 23°C (74°F).

More about September sea temperatures.

Is September a good time to holiday in United States?

Yes, September is a good time for a holiday in United States.

September has average maximum temperatures of 27°C (80°F) which is very warm and perfect for sunbathing on clear days. The sunshine percentage is 65.5% making it sunny but overcast at times. The hours of sunshine per day are 8.1hrs making the days long and bright. September has total rainfall of 7.7cm (3.0inches) making it mostly dry with only intermittent light showers. There are only 10.5 days with some rainfall so you can still enjoy the beach on the majority of days. Sea temperatures are a warm 23°C (74°F). September is a good month for swimming in United States with comfortable temperatures for most people.

More about the September temperatures and sunshine.

Is United States warm in September?

Yes, United States is very warm and perfect for sunbathing on clear days in September.

The average maximum temperature in United States in September is 27°C (80°F). The average maximum temperature is 27°C (81°) in the previous month and 24°C (76°F) in the next month.

The average temperature in United States in September is 22°C (72°F). The average temperature is 23°C (74°F) in the previous month and 20°C (68°F) in the next month.

More info about the September temperatures and sunshine.

How sunny is United States in September?

The average day light hours per day in United States in September are 12.4. The sunshine percentage is 65.5% making it sunny but overcast at times. The hours of sunshine per day are 8.1hrs making the days long and bright.

More about September sunshine.

Temperature in United States in September

The average maximum temperature in United States in September is 27°C (80°F). The average maximum temperature is 27°C (81°F) in the previous month and 24°C (76°F) in the next month.

The average temperature in United States in September is 22°C (72°F). The average temperature is 23°C (74°F) in the previous month and 20°C (68°F) in the next month.

The average minimum temperature in United States in September is 18°C (65°F). The minimum temperature is 19°C (67°F) in the previous month and 16°C (60°F) in the next month.

Sunshine in United States in September

During September the average day light hours are 12.4 per day in United States. The sunshine percentage is 65.5% making it sunny but overcast at times. The hours of sunshine per day are 8.1hrs making the days long and bright.

The ultraviolet index in United States in September is typically 9.2 during September. An ultraviolet index reading of 8 to 10 indicates a very high risk of harm from unprotected sun exposure. Unprotected skin risks burning in less than 15 minutes. Take extra precautions because unprotected skin and eyes will be damaged and can burn quickly. Tanning will be safest before 10am and after 4pm but only with a good application of sun screen. For those with sensitive skin stay in the shade and wear protective clothing, a wide-brimmed hat, and UV-blocking sunglasses. Generously apply broad spectrum SPF 30+ sunscreen every 2 hours, even on cloudy days. Watch out for relections from water that may increase ultraviolet exposure.

Sea Temperature in United States in September

The average sea water temperature in United States in September is 23.1°C (73.6°F) which is warm and pleasant for relaxing and swimming for long periods.

Rainfall in United States in September

The average total rainfall in United States in September is 7.7cm (3.0inches) and on average there are 10.5 rainy days in September making it a pretty wet time to visit the beach.

Humidity in United States in September

The maximum dew point (an indicator of humidity) in United States in September is 18°C (65°F) which is somewhat uncomfortable for most people in cities but fine on a beach. The dew point is 19°C (67°F) in the previous month and 16°C (16°F) in the next month.

The average maximum relative humidity in United States in September is typically 88.7%. The maximum relative humidity is 88.7% in the previous month and 88% in the next month.

The average relative humidity in United States in September is typically 73.2%. The average relative humidity is 73.8% in the previous month and 72% in the next month.

Wind Speed in United States in September

The average maximum wind speed in United States in September is typically 25KM/H (16MPH). The average maximum wind speed is 26KM/H (16MPH) in the previous month and 25KM/H (15MPH) in the next month.

The average wind speed in United States in September is typically 11KM/H (7MPH). The average wind speed is 11KM/H (7MPH) in the previous month and 11KM/H (7MPH) in the next month.

The average wind direction in United States in September is from the South.

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Monthly Averages

Suggested Beaches in September

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