September weather forecastEssex, MD

September

Weather in September

Essex weather in September hints towards the impending arrival of autumn. The temperature starts to taper off, signaling the departure of summer. The first traces of autumnal beauty start to show, with weather conditions becoming more tolerable. September also brings a noticeable reduction in rainfall compared to August. Wind gusts pick up slightly, sending ripples across the mesmerizing evening light painting the city's skyline.

Temperature

A mild drop in Essex's average high-temperature is observed in September, transitioning from 82.9°F (28.3°C) in August to a still warm 76.6°F (24.8°C). An average low-temperature of 61.3°F (16.3°C) marks the nights throughout September.

Humidity

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

Rainfall

In Essex, in September, during 9.8 rainfall days, 0.71" (18mm) of precipitation is typically accumulated. In Essex, during the entire year, the rain falls for 127.2 days and collects up to 12.32" (313mm) of precipitation.

Snowfall

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

Ocean temperature

In Essex, the average seawater temperature in September is 73°F (22.8°C).
Note: Individual cold sensitivities, influenced by sunshine, wind, and the ambient temperature, play a role in finding a swim in 73°F (22.8°C) water pleasant. (Olympic swimming events mandate water temperatures from 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 6:35 am and sunset at 7:36 pm. On the last day of September, in Essex, Maryland, sunrise is at 7:01 am and sunset at 6:49 pm EDT.

Sunshine

In September, the average sunshine is 9.2h.

UV index

In September, the average daily maximum UV index is 5. A UV Index estimate of 3 to 5 represents a moderate threat to health from unprotected exposure to Sun's UV rays for the ordinary person.
Note: In September, the maximum UV index of 5 suggests this advice:
Be careful. Light complexion individuals might get burns in fewer than 30 minutes. Midday is the peak time for the Sun's radiation; stay in the shade and protect yourself. Always opt for UVA and UVB-resistant sunglasses on radiant days. Beware! Reflecting off water and sand, UV rays are much stronger.

Updated: Aug 18, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

In September, in Essex, the average high-temperature is 76.6°F (24.8°C), and the average low-temperature is 61.3°F (16.3°C). The average heat index (a.k.a. 'felt air temperature', 'feels like'), which combines relative humidity and air temperature, in August is computed to be 89.6°F (32°C).

In September, the average relative humidity is 76%.

In Essex, during September, the rain falls for 9.8 days and regularly aggregates up to 0.71" (18mm) of precipitation.

April through November are months without snowfall.

In Essex, in September, the average water temperature is 73°F (22.8°C). Depending on a person's sensitivity to cold, with regards to sunshine, wind, and air temperature, a quick swim in 73°F (22.8°C) water may be enjoyable.

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

In September, on the first day of the month, sunrise is at 6:35 am and sunset at 7:36 pm. On the last day of the month, sunrise is at 7:01 am and sunset at 6:49 pm EDT.

In September, the average sunshine duration in Essex, Maryland, is 9.2h.

In Essex, the average daily maximum UV index in September is 5. A UV Index estimate of 3 to 5 represents a moderate health threat from exposure to Sun's UV rays.

Today

Tomorrow

Long-term

Year J F M A M J J A September O N D

Aug

September

Oct

Average high temperature

82.9°F

76.6°F

65.1°F

Average low temperature

Average pressure

Average wind speed

Average max. wind speed

6.4mph

6.9mph

8.6mph

Average wind speed gusts

Average humidity

Average rainfall

Average rainfall days

14.3

9.8

9.2

Average snowfall

Average snowfall days

Average sea temperature

Average daylight

Average sunshine

Average sunshine days

13.9

17.8

19.5

Average UV index

Average cloud cover

Average visibility

Average temperature in September
Essex, MD

Average high temperature in September: 76.6°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 (38.5°F).

Average low temperature in September: 61.3°F

The month with the highest average low temperature is July (69.4°F).
The coldest month (with the lowest average low temperature) is January (27°F).

Average pressure in September
Essex, 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).

Average wind speed in September
Essex, MD

Average wind speed in September: 6.6mph

The windiest months (with the highest average wind speed) are January, February and March (9.3mph).
The calmest month (with the lowest average wind speed) is July (5.8mph).

Average humidity in September
Essex, MD

Average humidity in September: 76%

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

Average rainfall in September
Essex, MD

Average rainfall in September: 0.71"

The wettest month (with the highest rainfall) is August (2.01").
The driest month (with the least rainfall) is January (0.59").

Average rainfall days in September
Essex, MD

Average rainfall days in September: 9.8 days

The month with the highest number of rainy days is May (14.8 days).
The month with the least rainy days is November (6.3 days).

Average snowfall in September
Essex, MD

Average snowfall in September: 0"

The month with the highest snowfall is January (0.75").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").

Average snowfall days in September
Essex, MD

Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (3.1 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

Average sea temperature in September
Essex, MD

Average sea temperature in September: 73.1°F

The best month for swimming (with the highest average sea temperature) is August (77.2°F).
The coldest month (with the lowest average sea temperature) is February (43.7°F).

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

Average daylight in September: 12h and 24min

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 12min

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 0min).

Average sunshine days in September
Essex, MD

Average sunshine days in September: 17.8 days

The month with the most sunshine days is November (22.3 days).
The month with the least sunshine days is July (12.9 days).

Average UV index in September
Essex, 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, November and December (UV index 2).

Average cloud cover in September
Essex, MD

Average cloud cover in September: 34

The month with the most cloud cover is March (Cloud cover 46).
The month with the least cloud cover is July (Cloud cover 29).

Average visibility in September
Essex, 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).