September Weather in Essex, United States

Last updated: June 24, 2025

In Essex, United States, the average temperature in September hovers around 20°C (69°F). However, it's not unusual to experience a minimum of 4°C (39°F) and a maximum of 35°C (95°F) during this time. Expect around 84 mm (3.3 in) of precipitation over 9 days, accompanied by an average humidity of 80%. Enjoy the dynamic climate!

September Temperature in Essex

In September in Essex, the average temperature is 20°C (69°F), with maximums reaching up to 35°C (95°F) and minimums dropping as low as 4°C (39°F). This climate makes Essex an ideal destination for travelers seeking a pleasant mix of warmth and cooler evenings.

September Weather in Essex: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Essex, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Essex, September typically has an average temperature of 20°C (69°F), with highs reaching up to 35°C (95°F) and lows dropping to around 4°C (39°F).

Data source: Temperature data for Essex generated using information from the Copernicus Climate Change Service.

September Precipitation in Essex

In Essex in September, the precipitation amount is 84 mm (3.3 in) spread over 9 days.

September Precipitation Trends in Essex

The chart displays monthly precipitation patterns in Essex, with values for each month alongside September’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how September’s conditions compare to those of other months. In Essex, September typically receives around 84 mm (3.3 inches) of precipitation spread over approximately 9 days.

Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.

Choose your preferred precipitation unit

Millimeters (mm) Inches (in)

September Humidity in Essex

In Essex in September, humidity is 80%. With an average temperature of 20°C (69°F), this humidity feels like a warm blanket enveloping you, making every step slightly more challenging as you navigate the air that clings to your skin, often leaving you longing for a cool breeze while exploring the sights.

September Average Humidity in Essex

This chart illustrates the average monthly humidity levels in Essex, with September’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In September, average humidity in Essex is approximately 80%, offering insight into how humid the weather typically is during this month.

Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Essex

In Essex in September, the maximum UV index is 8, which corresponds to a very high Exposure Category. This means that the time to burn is only 15 minutes. For more detailed information, you can refer to the Hourly UV Index in Essex.

Maximum UV Index Levels in Essex for September

The chart shows the monthly maximum UV Index (UVI) for Essex in September, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In September, the maximum UV index in Essex typically reaches 8, which falls under the very high exposure category.

Data source: Essex September UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

Extreme (11+): Avoid the sun, stay in shade.
Very High (8-10): Limit sun exposure.
High (6-7): Use SPF 30+ and protective clothing.
Moderate (3-5): Midday shade recommended.
Low (0-2): No protection needed.

How September Weather in Essex Compares to Other Months

Weather in Essex varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Essex, focusing on differences in temperature, rainfall, humidity, and UV levels.

This table compares monthly weather conditions in Essex, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	-3°C (27°F)	65 mm (2.6 inches)	82%	moderate
February Weather	-2°C (29°F)	68 mm (2.7 inches)	83%	moderate
March Weather	5°C (41°F)	93 mm (3.6 inches)	84%	high
April Weather	10°C (50°F)	121 mm (4.8 inches)	85%	very high
May Weather	17°C (63°F)	164 mm (6.4 inches)	79%	very high
June Weather	23°C (73°F)	135 mm (5.3 inches)	82%	very high
July Weather	24°C (76°F)	100 mm (4.0 inches)	80%	very high
August Weather	23°C (74°F)	84 mm (3.3 inches)	81%	very high
September Weather	20°C (69°F)	84 mm (3.3 inches)	80%	very high
October Weather	13°C (56°F)	138 mm (5.4 inches)	82%	high
November Weather	4°C (40°F)	59 mm (2.3 inches)	88%	moderate
December Weather	1°C (34°F)	56 mm (2.2 inches)	84%	low