July Weather in Watertown, United States

Last updated: June 24, 2025

In July, the average temperature in Watertown, United States hovers around 26°C (80°F), with a range that can dip to a cool 16°C (62°F) and soar to a sizzling 36°C (96°F). Visitors should expect around 131 mm (5.1 in) of precipitation spread over 16 days, contributing to an average humidity level of 78%. Be prepared for a mix of warm days and refreshing rainfall during your stay!

July Temperature in Watertown

In July in Watertown, the average temperature is 26°C (80°F), with a maximum that can reach 36°C (96°F) and a minimum that can drop to as low as 16°C (62°F). This pleasant climate makes it an ideal destination for those looking to enjoy outdoor activities and explore the beauty of Watertown.

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

The chart illustrates July temperature patterns in Watertown, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Watertown, July typically has an average temperature of 26°C (80°F), with highs reaching up to 36°C (96°F) and lows dropping to around 16°C (62°F).

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

July Precipitation in Watertown

In Watertown in July, the total precipitation amount is 131 mm (5.1 in) over a span of 16 days.

July Precipitation Trends in Watertown

The chart displays monthly precipitation patterns in Watertown, 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 Watertown, July typically receives around 131 mm (5.1 inches) of precipitation spread over approximately 16 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 Watertown

In Watertown in July, humidity is 78%. With an average temperature of 26°C (80°F), this humidity feels like a warm blanket wrapping around you, making travel feel sticky and heavy, while the air clings to your skin and encourages frequent breaks in shaded spots to stay cool.

July Average Humidity in Watertown

This chart illustrates the average monthly humidity levels in Watertown, 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 Watertown is approximately 78%, 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 Watertown

In Watertown 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 Watertown.

Maximum UV Index Levels in Watertown for July

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

Data source: Watertown 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 Watertown Compares to Other Months

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

This table compares monthly weather conditions in Watertown, showing how July’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	5°C (41°F)	109 mm (4.3 inches)	87%	moderate
February Weather	8°C (46°F)	190 mm (7.5 inches)	87%	high
March Weather	12°C (53°F)	176 mm (6.9 inches)	85%	high
April Weather	15°C (60°F)	151 mm (5.9 inches)	82%	very high
May Weather	21°C (70°F)	123 mm (4.8 inches)	83%	very high
June Weather	25°C (76°F)	149 mm (5.9 inches)	82%	extreme
July Weather	26°C (80°F)	131 mm (5.1 inches)	78%	extreme
August Weather	25°C (78°F)	124 mm (4.9 inches)	67%	very high
September Weather	23°C (74°F)	130 mm (5.1 inches)	64%	very high
October Weather	17°C (64°F)	140 mm (5.5 inches)	74%	high
November Weather	9°C (49°F)	81 mm (3.2 inches)	87%	moderate
December Weather	8°C (46°F)	151 mm (6.0 inches)	88%	moderate