September weather forecast
Stevensville, MD

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Weather in September

September in Stevensville signals the advent of fall as average temperatures begin to descend from their summer highs, reaching approximately 77.4°F (25.2°C). A prominent decrease in daylight from August 14.6 hours to 12.4 hours in September is another indication of the incoming fall. With mild climate conditions persisting, September creates a pleasant environment in Stevensville. As the days begin to shorten and temperatures cool down, September brings a subtle yet perceptible change in atmosphere. Yet, the remnants of the summer’s warmth still linger, providing a gentle transition into the fall season.

Temperature

The average high-temperature in Stevensville, Maryland, for September is a still moderately hot 77.4°F (25.2°C), closely aligning with the temperature of the preceding month. Stevensville records an average nighttime low-temperature of 63.5°F (17.5°C) throughout September.

Humidity

In Stevensville, the average relative humidity in September is 77%.

Rainfall

The month with the least rainfall in Stevensville is September, when the rain falls for 12.5 days and typically collects 1.89" (48mm) of precipitation.

Snowfall

In Stevensville, snow does not fall in May through October.

Ocean temperature

In Stevensville, the average seawater temperature in September is 73.9°F (23.3°C).
Note: If someone is sensitive to cold, the enjoyment of swimming in 73.9°F (23.3°C) water hinges on factors like sunshine, wind, and the current air temperature. (For context: Olympic swimming competitions are held in water temperatures of 77°F (25°C) to 82.4°F (28°C).)

Daylight

The average length of the day in September is 12h and 26min.
On the first day of the month, sunrise is at 6:34 am and sunset at 7:35 pm. On the last day of September, in Stevensville, sunrise is at 7:00 am and sunset at 6:49 pm EDT.

Sunshine

In Stevensville, the average sunshine in September is 9.3h.

UV index

In September, the average daily maximum UV index in Stevensville, Maryland, is 5. A UV Index of 3 to 5 symbolizes a medium vulnerability from unsafe exposure to UV radiation for ordinary individuals.
Note: In September, a daily maximum UV index of 5 leads to the following instructions:
Be vigilant - Preventing sunburn is recommended. Sun exposure should be minimized, especially during midday, to avoid harmful UV radiation. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days. Alert! Sand and water increase UV exposure due to their reflective properties.
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Frequently asked questions

What is the usual temperature for Stevensville in September?

Stevensville in September has an average high-temperature of 77.4°F (25.2°C) and an average low-temperature of 63.5°F (17.5°C). In August, the average heat index (a.k.a. 'felt air temperature', 'feels like'), which calculates the temperature value influenced by the moisture in the air, is estimated at 89.6°F (32°C).

What is the average humidity in September in Stevensville?

In September, the average relative humidity in Stevensville, Maryland, is 77%.

What is the driest month in Stevensville?

September is the month with the least rainfall. Rain falls for 12.5 days and accumulates 1.89" (48mm) of precipitation.

How many days does it rain in September in Stevensville?

In Stevensville, Maryland, during September, the rain falls for 12.5 days and regularly aggregates up to 1.89" (48mm) of precipitation.

When it does not snow in Stevensville?

In Stevensville, snow does not fall in May through October.

What is the ocean temperature in September in Stevensville?

In Stevensville, the average seawater temperature in September is 73.9°F (23.3°C). Depending on a person's sensitivity to cold, with regards to sunshine, wind, and air temperature, a quick swim in 73.9°F (23.3°C) water may be enjoyable.

How many hours of daylight does Stevensville have in September?

In Stevensville, the average day length in September is 12h and 26min.

When is the sunrise / sunset in September in Stevensville?

On the first day of September in Stevensville, sunrise is at 6:34 am and sunset at 7:35 pm. On the last day of the month, sunrise is at 7:00 am and sunset at 6:49 pm EDT.

How long on average sun shines in September in Stevensville?

In Stevensville, the average sunshine duration in September is 9.3h.

How high is the UV index in September in Stevensville?

In September, the average daily maximum UV index is 5. A UV Index value of 3 to 5 symbolizes a medium health risk from unprotected exposure to UV radiation.
Today
Tomorrow
Long-term
YearJFMAMJJASeptemberOND
Aug
September
Oct
Average high temperature
82.6°F 28.1°C
77.4°F 25.2°C
66°F 18.9°C
Average low temperature
69.6°F 20.9°C
63.5°F 17.5°C
54.3°F 12.4°C
Average pressure
29.99" 762mmHg
30.05" 763mmHg
30.03" 763mmHg
Average wind speed
6.6mph 10.6km/h
7.4mph 11.9km/h
8.8mph 14.2km/h
Average max. wind speed
7.3mph 11.7km/h
7.7mph 12.4km/h
9.6mph 15.4km/h
Average wind speed gusts
10.6mph 17.1km/h
11.7mph 18.8km/h
14.5mph 23.3km/h
Average humidity
76%
77%
76%
Average rainfall
3.19" 81mm
1.89" 48mm
3.11" 79mm
Average rainfall days
14
12.5
12.6
Average snowfall
0" 0mm
0" 0mm
0" 0mm
Average snowfall days
0
0
0
Average sea temperature
77.8°F 25.4°C
73.9°F 23.3°C
66.7°F 19.3°C
Average daylight
13h 4min
12h 2min
11h 1min
Average sunshine
10h 3min
9h 2min
5h 4min
Average sunshine days
15.2
16.2
16.5
Average UV index
6
5
4
Average cloud cover
29%
34%
38%
Average visibility
6mi 9.7km
6mi 9.7km
6mi 9.7km

Average temperature in September
Stevensville, MD

Average temperature in September - Stevensville, MD
  • Average high temperature in September: 77.4°F

The warmest month (with the highest average high temperature) is July (84.4°F).
The month with the lowest average high temperature is January (40.1°F).

  • Average low temperature in September: 63.5°F

The month with the highest average low temperature is July (71.2°F).
The coldest month (with the lowest average low temperature) is January (29.5°F).

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Average pressure in September
Stevensville, MD

Average pressure in September - Stevensville, MD
  • Average pressure in September: 30.05"Hg

The month with the highest atmospheric pressure is November (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).

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Average wind speed in September
Stevensville, MD

Average wind speed in September - Stevensville, MD
  • Average wind speed in September: 7.4mph

The windiest months (with the highest average wind speed) are February and March (10.1mph).
The calmest months (with the lowest average wind speed) are July and August (6.6mph).

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Average humidity in September
Stevensville, MD

Average humidity in September - Stevensville, MD
  • Average humidity in September: 77%

The month with the highest relative humidity is May (79%).
The months with the lowest relative humidity are January and November (73%).

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Average rainfall in September
Stevensville, MD

Average rainfall in September - Stevensville, MD
  • Average rainfall in September: 1.89"

The wettest month (with the highest rainfall) is July (3.31").
The driest month (with the least rainfall) is September (1.89").

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Average rainfall days in September
Stevensville, MD

Average rainfall days in September - Stevensville, MD
  • Average rainfall days in September: 12.5 days

The month with the highest number of rainy days is May (18.1 days).
The month with the least rainy days is November (8.8 days).

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Average snowfall in September
Stevensville, MD

Average snowfall in September - Stevensville, MD
  • Average snowfall in September: 0"

The month with the highest snowfall is January (1.42").
The months with the least snowfall are May, June, July, August, September and October (0").

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Average snowfall days in September
Stevensville, MD

Average snowfall days in September - Stevensville, MD
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (4.2 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

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Average sea temperature in September
Stevensville, MD

Average sea temperature in September - Stevensville, MD
  • Average sea temperature in September: 73.9°F

The best month for swimming (with the highest average sea temperature) is August (77.8°F).
The coldest month (with the lowest average sea temperature) is February (45.1°F).

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Average daylight in September /
Average sunshine in September
Stevensville, MD

Average daylight in September / Average sunshine in September - Stevensville, MD
  • Average daylight in September: 12h and 2min

The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 30min).

  • Average sunshine in September: 9h and 2min

The month with the most sunshine is July (Average sunshine: 10h and 54min).
The month with the least sunshine is February (Average sunshine: 5h and 0min).

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Average sunshine days in September
Stevensville, MD

Average sunshine days in September - Stevensville, MD
  • Average sunshine days in September: 16.2 days

The month with the most sunshine days is November (19.4 days).
The month with the least sunshine days is May (11.1 days).

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Average UV index in September
Stevensville, MD

Average UV index in September - Stevensville, 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).

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Average cloud cover in September
Stevensville, MD

Average cloud cover in September - Stevensville, MD
  • Average cloud cover in September: 34

The months with the most cloud cover are February, March and December (Cloud cover 45).
The month with the least cloud cover is July (Cloud cover 28).

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Average visibility in September
Stevensville, MD

Average visibility in September - Stevensville, 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).

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Stevensville, Maryland, USA

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