July Weather in Suffolk, United States

Last updated: June 24, 2025

In July, the average temperature in Suffolk, United States reaches a warm 27°C (81°F), with a notable range where it can dip to a minimum of 14°C (57°F) and soar up to a maximum of 37°C (99°F). Visitors should be prepared for 140 mm (5.5 in) of precipitation spread over 14 days, contributing to a lush environment. The average humidity also lingers around a notable 81%, enhancing the tropical feel of the region.

July Temperature in Suffolk

In July in Suffolk, the average temperature is 27°C (81°F), with maximums reaching 37°C (99°F) and minimums dipping as low as 14°C (57°F). This pleasant climate makes it an ideal destination for travelers seeking warm weather and diverse outdoor activities.

July Weather in Suffolk: Daily Temperature Highs, Lows, and Averages

The chart illustrates July temperature patterns in Suffolk, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Suffolk, July typically has an average temperature of 27°C (81°F), with highs reaching up to 37°C (99°F) and lows dropping to around 14°C (57°F).

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

July Precipitation in Suffolk

In Suffolk in July, the precipitation amount is 140 mm (5.5 in) over the course of 14 days.

July Precipitation Trends in Suffolk

The chart displays monthly precipitation patterns in Suffolk, 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 Suffolk, July typically receives around 140 mm (5.5 inches) of precipitation spread over approximately 14 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 Suffolk

In Suffolk in July humidity is 81%. With an average temperature of 27°C (81°F), this humidity feels like a warm, heavy blanket enveloping you, making travel quite uncomfortable as it can quickly drain your energy and require frequent hydration breaks.

July Average Humidity in Suffolk

This chart illustrates the average monthly humidity levels in Suffolk, 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 Suffolk is approximately 81%, 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 Suffolk

In Suffolk in July, the maximum UV index reaches 11, which corresponds to an extreme Exposure Category. With a time to burn of just 10 minutes, it's essential to take precautions. For more details, you can check the Hourly UV Index in Suffolk.

Maximum UV Index Levels in Suffolk for July

The chart shows the monthly maximum UV Index (UVI) for Suffolk 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 Suffolk typically reaches 11, which falls under the extreme exposure category.

Data source: Suffolk 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 Suffolk Compares to Other Months

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

This table compares monthly weather conditions in Suffolk, showing how July’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	6°C (42°F)	91 mm (3.6 inches)	84%	moderate
February Weather	8°C (47°F)	102 mm (4.0 inches)	83%	high
March Weather	11°C (51°F)	84 mm (3.3 inches)	82%	very high
April Weather	16°C (61°F)	101 mm (4.0 inches)	81%	very high
May Weather	20°C (69°F)	120 mm (4.7 inches)	80%	very high
June Weather	24°C (76°F)	118 mm (4.6 inches)	82%	very high
July Weather	27°C (81°F)	140 mm (5.5 inches)	81%	extreme
August Weather	26°C (79°F)	168 mm (6.6 inches)	81%	very high
September Weather	23°C (75°F)	130 mm (5.1 inches)	78%	very high
October Weather	19°C (66°F)	84 mm (3.3 inches)	80%	very high
November Weather	11°C (52°F)	76 mm (3.0 inches)	84%	moderate
December Weather	8°C (47°F)	89 mm (3.5 inches)	84%	moderate