September weather forecast
Mariners, MD

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Weather in September

September, the first month of the autumn in Mariners, is still a warm month, with an average temperature ranging between min 68.9°F (20.5°C) and max 76.3°F (24.6°C).

Temperature

A mild drop in Mariners's average high-temperature is observed in September, transitioning from 81.9°F (27.7°C) in August to a still moderately hot 76.3°F (24.6°C). Mariners, in September, logs an average low-temperature of 68.9°F (20.5°C), a subtle step down from daytime readings.

Humidity

In September, the average relative humidity is 76%.

Rainfall

In September, the rain falls for 14.2 days. Throughout September, 2.72" (69mm) of precipitation is accumulated. In Mariners, during the entire year, the rain falls for 158.7 days and collects up to 32.72" (831mm) of precipitation.

Snowfall

April through November are months without snowfall in Mariners, Maryland.

Daylight

The average length of the day in September is 12h and 25min.
On the first day of September, sunrise is at 6:33 am and sunset at 7:32 pm. On the last day of the month, sunrise is at 6:58 am and sunset at 6:47 pm EDT.

Sunshine

In September, the average sunshine is 9.3h.

UV index

In September, the average daily maximum UV index is 5. A UV Index reading of 3 to 5 represents a medium health hazard from exposure to the Sun's UV rays for average individuals.
Note: During September, 5 as the daily maximum UV index converts into the following advice:
Ensure safety - Recommendations to avert sunburn are presented. Being exposed to the midday Sun can have harmful effects due to strong UV radiation; always take precautions. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation.
Updated: Aug 28, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the usual temperature for Mariners in September?

In Mariners, in September, the average high-temperature is 76.3°F (24.6°C), and the average low-temperature is 68.9°F (20.5°C). The average heat index (a.k.a. 'real feel', 'felt air temperature'), which factors the actual air temperature with the relative humidity, in August is computed to be 87.8°F (31°C).

What is the average humidity in September in Mariners?

In Mariners, the average relative humidity in September is 76%.

How much does it rain in September?

In September, in Mariners, the rain falls for 14.2 days. Throughout September, 2.72" (69mm) of precipitation is accumulated.

When it does not snow?

In Mariners, snow does not fall in April through November.

What is the average length of the day in September?

The average day length in September is 12h and 25min.

What time are sunrise and sunset in September?

In September, on the first day of the month, sunrise is at 6:33 am and sunset at 7:32 pm. On the last day of the month, sunrise is at 6:58 am and sunset at 6:47 pm EDT.

How many hours of sunshine does Mariners have in September?

The average sunshine duration in September is 9.3h.

How high is the UV index in September?

In September, the average daily maximum UV index is 5. A UV Index estimate of 3 to 5 represents a medium hazard to health from 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
Mariners, MD

Average temperature in September - Mariners, MD
  • Average high temperature in September: 76.3°F

The warmest month (with the highest average high temperature) is July (82.9°F).
The month with the lowest average high temperature is January (42.4°F).

  • Average low temperature in September: 68.9°F

The month with the highest average low temperature is July (74.7°F).
The coldest month (with the lowest average low temperature) is January (33.3°F).

Average pressure in September
Mariners, MD

Average pressure in September - Mariners, 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
Mariners, MD

Average wind speed in September - Mariners, MD
  • Average wind speed in September: 10mph

The windiest month (with the highest average wind speed) is January (12.1mph).
The calmest month (with the lowest average wind speed) is August (8.7mph).

Average humidity in September
Mariners, MD

Average humidity in September - Mariners, MD
  • Average humidity in September: 76%

The month with the highest relative humidity is May (80%).
The months with the lowest relative humidity are January and November (74%).

Average rainfall in September
Mariners, MD

Average rainfall in September - Mariners, MD
  • Average rainfall in September: 2.72"

The wettest month (with the highest rainfall) is August (4.17").
The driest month (with the least rainfall) is January (1.93").

Average rainfall days in September
Mariners, MD

Average rainfall days in September - Mariners, MD
  • Average rainfall days in September: 14.2 days

The month with the highest number of rainy days is July (18.1 days).
The month with the least rainy days is January (9.3 days).

Average snowfall in September
Mariners, MD

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

The month with the highest snowfall is January (0.79").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").

Average snowfall days in September
Mariners, MD

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

The month with the highest number of snowfall days is January (1.9 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
Mariners, MD

Average daylight in September / Average sunshine in September - Mariners, 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 36min).

  • Average sunshine in September: 9h and 2min

The month with the most sunshine is July (Average sunshine: 10h and 48min).
The month with the least sunshine is February (Average sunshine: 5h and 6min).

Average sunshine days in September
Mariners, MD

Average sunshine days in September - Mariners, MD
  • Average sunshine days in September: 13.5 days

The month with the most sunshine days is November (18.5 days).
The month with the least sunshine days is August (11.2 days).

Average UV index in September
Mariners, MD

Average UV index in September - Mariners, MD
  • Average UV index in September: 5

The month with the highest UV index is August (UV index 7).
The months with the lowest UV index are January and December (UV index 2).

Average cloud cover in September
Mariners, MD

Average cloud cover in September - Mariners, MD
  • Average cloud cover in September: 32

The month with the most cloud cover is March (Cloud cover 45).
The month with the least cloud cover is July (Cloud cover 27).

Average visibility in September
Mariners, MD

Average visibility in September - Mariners, 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).

Mariners, Maryland, USA

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