July Weather in Port Jefferson Station, United States

Last updated: June 24, 2025

In July, the average temperature in Port Jefferson Station, United States hovers around 24°C (76°F), providing a pleasant atmosphere. Expect the temperature to range from a cool 16°C (60°F) to a warm 33°C (91°F). However, be prepared for some rain, as precipitation amounts to 131 mm (5.2 in) spread over 12 days. With an average humidity of 62%, the air will feel comfortably refreshing.

July Temperature in Port Jefferson Station

In July in Port Jefferson Station, the average temperature is 24°C (76°F). Maximums can reach 33°C (91°F), and minimums can be as low as 16°C (60°F). This pleasant climate makes it an ideal time for outdoor activities and exploration.

July Weather in Port Jefferson Station: Daily Temperature Highs, Lows, and Averages

The chart illustrates July temperature patterns in Port Jefferson Station, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Port Jefferson Station, July typically has an average temperature of 24°C (76°F), with highs reaching up to 33°C (91°F) and lows dropping to around 16°C (60°F).

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

July Precipitation in Port Jefferson Station

In Port Jefferson Station in July, the precipitation amount is 131 mm (5.2 in) spread over 12 days.

July Precipitation Trends in Port Jefferson Station

The chart displays monthly precipitation patterns in Port Jefferson Station, with values for each month alongside July’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how July’s conditions compare to those of other months. In Port Jefferson Station, July typically receives around 131 mm (5.2 inches) of precipitation spread over approximately 12 days.

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

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Millimeters (mm) Inches (in)

July Humidity in Port Jefferson Station

In Port Jefferson Station in July, humidity is 62%. With an average temperature of 24°C (76°F), this humidity feels like a warm, slightly sticky embrace, making it essential for travelers to stay hydrated and take breaks in the shade as they explore the vibrant surroundings.

July Average Humidity in Port Jefferson Station

This chart illustrates the average monthly humidity levels in Port Jefferson Station, with July’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In July, average humidity in Port Jefferson Station is approximately 62%, offering insight into how humid the weather typically is during this month.

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

July UV Index in Port Jefferson Station

In Port Jefferson Station in July, the maximum UV index is 9, which corresponds to a very high Exposure Category. The time to burn is just 15 minutes, so it's essential to take precautions. For detailed information, you can check the Hourly UV Index in Port Jefferson Station.

Maximum UV Index Levels in Port Jefferson Station for July

The chart shows the monthly maximum UV Index (UVI) for Port Jefferson Station in July, 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 July, the maximum UV index in Port Jefferson Station typically reaches 9, which falls under the very high exposure category.

Data source: Port Jefferson Station July 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 July Weather in Port Jefferson Station Compares to Other Months

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

This table compares monthly weather conditions in Port Jefferson Station, showing how July’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	2°C (35°F)	80 mm (3.1 inches)	84%	moderate
February Weather	2°C (36°F)	112 mm (4.4 inches)	82%	moderate
March Weather	4°C (40°F)	104 mm (4.1 inches)	81%	high
April Weather	9°C (49°F)	132 mm (5.2 inches)	78%	very high
May Weather	14°C (58°F)	119 mm (4.7 inches)	69%	very high
June Weather	20°C (68°F)	87 mm (3.4 inches)	69%	very high
July Weather	24°C (76°F)	131 mm (5.2 inches)	62%	very high
August Weather	24°C (75°F)	103 mm (4.0 inches)	65%	very high
September Weather	21°C (70°F)	94 mm (3.7 inches)	68%	very high
October Weather	16°C (61°F)	143 mm (5.6 inches)	74%	high
November Weather	9°C (49°F)	103 mm (4.0 inches)	82%	moderate
December Weather	5°C (40°F)	140 mm (5.5 inches)	80%	low