September weather forecastSolomons, MD
September
Weather in September
September in Solomons sees a decline in temperature and rainfall, heralding the onset of fall. The decrease in the sea temperature to an average of 74.5°F (23.6°C) is an indicator of the progressive cooling overall. Moving into October, further droplets in temperature, daylight hours, and increasingly variable weather mark the full onset of fall. As such, September stands as a transition period, acting as a gradual march towards the more chilly weather of October and November.Temperature
September ushers in a minute temperature change, with average high-temperatures reducing from August's 83.1°F (28.4°C) to a still moderately hot 77.2°F (25.1°C). An average low-temperature of 65.8°F (18.8°C) is observed during September nights.Humidity
The average relative humidity in September is 76%.Rainfall
In Solomons, during September, the rain falls for 14.1 days and regularly aggregates up to 2.76" (70mm) of precipitation. Throughout the year, there are 160.6 rainfall days, and 34.49" (876mm) of precipitation is accumulated.Snowfall
May through October are months without snowfall.Ocean temperature
In September, the average ocean temperature is 74.7°F (23.7°C).Note: Swimming in 74.7°F (23.7°C) waters may not appeal to those sensitive to cold. Yet, the presence of sunshine, the strength of the wind, and the air temperature can alter this experience. Some might even opt for a wetsuit for added comfort.
Daylight
In September, the average length of the day is 12h and 25min.On the first day of the month, sunrise is at 6:35 am and sunset at 7:35 pm. On the last day of September, sunrise is at 7:01 am and sunset at 6:49 pm EDT.
Sunshine
The average sunshine in September in Solomons, Maryland, is 9.1h.UV index
In September, the average daily maximum UV index is 5. A UV Index value of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV rays for the average person.Note: An average maximum UV index of 5 in September leads to these recommendations:
Prioritize safety - Suggestions to prevent sun damage are offered. The Sun is at its harshest during midday; protect yourself by staying in shaded areas and minimizing exposure. A wide-brimmed hat is a staple for defending the face, eyes, ears, and neck from the Sun. Warning! Reflective surfaces like sand and water amplify the Sun's UV radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Solomons, MD
- Average high temperature in September: 77.2°F
The warmest month (with the highest average high temperature) is July (84.7°F).
The month with the lowest average high temperature is January (41.7°F).
- Average low temperature in September: 65.8°F
The month with the highest average low temperature is July (72.1°F).
The coldest month (with the lowest average low temperature) is January (31.5°F).
Average pressure in September
Solomons, MD
- Average pressure in September: 30.04"Hg
The month with the highest atmospheric pressure is November (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).
Average wind speed in September
Solomons, MD
- Average wind speed in September: 8mph
The windiest month (with the highest average wind speed) is March (9.8mph).
The calmest month (with the lowest average wind speed) is July (6.7mph).
Average humidity in September
Solomons, MD
- Average humidity in September: 76%
The month with the highest relative humidity is May (79%).
The months with the lowest relative humidity are January, March and November (73%).
Average rainfall in September
Solomons, MD
- Average rainfall in September: 2.76"
The wettest month (with the highest rainfall) is July (4.53").
The driest month (with the least rainfall) is January (1.93").
Average rainfall days in September
Solomons, MD
- Average rainfall days in September: 14.1 days
The month with the highest number of rainy days is July (18.3 days).
The month with the least rainy days is January (8.8 days).
Average snowfall in September
Solomons, MD
- Average snowfall in September: 0"
The month with the highest snowfall is January (1.77").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in September
Solomons, MD
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (3.5 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average sea temperature in September
Solomons, MD
- Average sea temperature in September: 74.5°F
The best month for swimming (with the highest average sea temperature) is August (78.5°F).
The coldest month (with the lowest average sea temperature) is February (45.6°F).
Average daylight in September /
Average sunshine in September
Solomons, MD
- Average daylight in September: 12h and 24min
The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 36min).
- Average sunshine in September: 9h and 6min
The month with the most sunshine is July (Average sunshine: 10h and 42min).
The month with the least sunshine is February (Average sunshine: 5h and 6min).
Average sunshine days in September
Solomons, MD
- Average sunshine days in September: 14.3 days
The month with the most sunshine days is November (18.9 days).
The month with the least sunshine days is August (10.7 days).
Average UV index in September
Solomons, MD
- Average UV index in September: 5
The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January and December (UV index 2).
Average cloud cover in September
Solomons, MD
- Average cloud cover in September: 35
The month with the most cloud cover is March (Cloud cover 45).
The month with the least cloud cover is July (Cloud cover 29).
Average visibility in September
Solomons, MD
- Average visibility in September: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
