Weather in Maryland, United States in September

So you're interested in going to Maryland, United States in September

September is a hot and rainy time for sunbathing in Maryland. September is a good month for swimming in Maryland with warm sea temperatures. Consider visiting Maryland in the months of June, July, August, September, for the best beach weather. Also consider one of our other suggestions for September.

Temperature in Maryland in September

The average maximum temperature in Maryland in September is 25°. The average maximum temperature is 29° in the previous month and 20° in the next month.

The average temperature in Maryland in September is 21°. The average temperature ranges is 24° in the previous month and 15° in the next month.

The average minimum temperature in Maryland in September is 17°. The minimum temperature is 20° in the previous month and 11° in the next month.

Sunshine in Maryland in September

The average day light hours per day in Maryland in September are 12.5 and there are 8.8 hours of sunshine per day on average during September making it a sunny month with few clouds.

The ultraviolet index in Maryland in September is typically 7.2 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 Maryland in September

The average sea water temperature in Maryland in September is 20.4° which is comfortable for swimming though some may prefer warmer water.

Rainfall in Maryland in September

The average total rainfall in Maryland in September is 70.8cm and on average there are 11.9 rainy days in September making it a wet time to visit the beach.

Humidity in Maryland in September

The maximum dew point (an indicator of humidity) in Maryland in September is 19° which is somewhat uncomfortable for most people in cities but fine on a beach. The dew point is 22° in the previous month and 14° in the next month.

The average maximum relative humidity in Maryland in September is typically 91.8%. The maximum relative humidity is 92.3% in the previous month and 92.5% in the next month.

The average relative humidity in Maryland in September is typically 77.3%. The average relative humidity is 78.2% in the previous month and 77% in the next month.

Wind Speed in Maryland in September

The average maximum wind speed in Maryland in September is typically 21kmh. The average maximum wind speed is 19kmh in the previous month and 23kmh in the next month.

The average wind speed in Maryland in September is typically 11kmh. The average wind speed is 9kmh in the previous month and 12kmh in the next month.

The average wind direction in Maryland in September is from the East-Northeast.

Monthly Averages

Suggested Beaches in September

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