September weather forecast
Port Tobacco, MD

Share

Weather in September

The first month of the autumn, September, is still a warm month in Port Tobacco, Maryland, with an average temperature fluctuating between 78.6°F (25.9°C) and 61.9°F (16.6°C).

Temperature

In Port Tobacco, entering September brings a subtle temperature decrement, reducing from August's 85.1°F (29.5°C) to a still warm 78.6°F (25.9°C). During the nights in September, the temperature averages to an enjoyable 61.9°F (16.6°C).

Humidity

In September, the average relative humidity is 77%.

Rainfall

In Port Tobacco, in September, during 12.1 rainfall days, 2.05" (52mm) of precipitation is typically accumulated. In Port Tobacco, Maryland, during the entire year, the rain falls for 151.4 days and collects up to 29.33" (745mm) of precipitation.

Snowfall

May through October are months without snowfall.

Daylight

In September, the average length of the day is 12h and 25min.
On the first day of the month, sunrise is at 6:38 am and sunset at 7:37 pm. On the last day of September, sunrise is at 7:03 am and sunset at 6:52 pm EDT.

Sunshine

The average sunshine in September is 8.7h.

UV index

The average daily maximum UV index in September is 5. A UV Index of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV radiation for average individuals.
Note: In September, the maximum UV index of 5 suggests this advice:
Proceed with care. Light skin individuals may be exposed to burns in fewer than 30 minutes. Sun's radiation is most powerful around mid-day, so it's best to limit outdoor activities during this time. For excellent sun protection for the eyes, ears, face, and neck, consider a wide-brim hat.

Frequently asked questions

What are September temperatures?

September temperatures vary between a high-temperature of 78.6°F (25.9°C) and a low-temperature of 61.9°F (16.6°C). In August, the average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which factors the actual air temperature with the relative humidity, is evaluated at 95°F (35°C).

What is the average humidity in September?

The average relative humidity in September is 77%.

How much does it rain in September?

In Port Tobacco, during September, the rain falls for 12.1 days and regularly aggregates up to 2.05" (52mm) of precipitation.

When it does not snow?

In Port Tobacco, snow does not fall in May through October.

How many hours of daylight does Port Tobacco have in September?

In September, the average day length is 12h and 25min.

When is the sunrise / sunset in September?

On the first day of September in Port Tobacco, sunrise is at 6:38 am and sunset at 7:37 pm. On the last day of the month, sunrise is at 7:03 am and sunset at 6:52 pm EDT.

How many hours of sunshine does Port Tobacco have in September?

The average sunshine duration in September is 8.7h.

What is the UV index intensity in September?

In September, the average daily maximum UV index is 5. A UV Index value of 3 to 5 symbolizes a moderate vulnerability from unsafe exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Port Tobacco, MD

Average temperature in September - Port Tobacco, MD
  • Average high temperature in September: 78.6°F

The warmest month (with the highest average high temperature) is July (87.4°F).
The month with the lowest average high temperature is January (41.5°F).

  • Average low temperature in September: 61.9°F

The month with the highest average low temperature is July (68.9°F).
The coldest month (with the lowest average low temperature) is January (28.4°F).

Average pressure in September
Port Tobacco, MD

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

The month with the highest atmospheric pressure is November (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).

Average wind speed in September
Port Tobacco, MD

Average wind speed in September - Port Tobacco, MD
  • Average wind speed in September: 5.8mph

The windiest months (with the highest average wind speed) are March and April (7.8mph).
The calmest months (with the lowest average wind speed) are July and August (5.2mph).

Average humidity in September
Port Tobacco, MD

Average humidity in September - Port Tobacco, MD
  • Average humidity in September: 77%

The month with the highest relative humidity is May (78%).
The months with the lowest relative humidity are January, March and April (73%).

Average rainfall in September
Port Tobacco, MD

Average rainfall in September - Port Tobacco, MD
  • Average rainfall in September: 2.05"

The wettest month (with the highest rainfall) is August (3.31").
The driest month (with the least rainfall) is January (1.85").

Average rainfall days in September
Port Tobacco, MD

Average rainfall days in September - Port Tobacco, MD
  • Average rainfall days in September: 12.1 days

The month with the highest number of rainy days is May (16.8 days).
The month with the least rainy days is November (8.7 days).

Average snowfall in September
Port Tobacco, MD

Average snowfall in September - Port Tobacco, MD
  • Average snowfall in September: 0"

The month with the highest snowfall is January (2.32").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in September
Port Tobacco, MD

Average snowfall days in September - Port Tobacco, MD
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (4.3 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

Average daylight in September /
Average sunshine in September
Port Tobacco, MD

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

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 30min).

  • Average sunshine in September: 8h and 4min

The month with the most sunshine is July (Average sunshine: 10h and 30min).
The months with the least sunshine are February and December (Average sunshine: 5h and 0min).

Average sunshine days in September
Port Tobacco, MD

Average sunshine days in September - Port Tobacco, MD
  • Average sunshine days in September: 15.7 days

The month with the most sunshine days is November (19.6 days).
The month with the least sunshine days is May (11.4 days).

Average UV index in September
Port Tobacco, MD

Average UV index in September - Port Tobacco, 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, February and December (UV index 2).

Average cloud cover in September
Port Tobacco, MD

Average cloud cover in September - Port Tobacco, MD
  • Average cloud cover in September: 38

The month with the most cloud cover is March (Cloud cover 47).
The month with the least cloud cover is July (Cloud cover 32).

Average visibility in September
Port Tobacco, MD

Average visibility in September - Port Tobacco, MD
  • Average visibility in September: 6mi

The months with the highest visibility are January, February, March, April, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is May (5mi).

Port Tobacco, Maryland, USA

Weather forecast for your location

1. Click Locate me button
2. Allow the app to use your location