July Weather in Fairfield, United States

Last updated: June 24, 2025

In July, the average temperature in Fairfield, United States hovers around 26°C (80°F). However, temperatures can range from a cool 16°C (60°F) to a scorching 39°C (102°F). Expect some rain, with an average precipitation of 111 mm (4.4 in) spread across 11 days. The air is quite humid, with an average humidity level of 75%, creating a warm and tropical atmosphere.

July Temperature in Fairfield

In July in Fairfield, the average temperature is 26°C (80°F), with maximums reaching 39°C (102°F) and minimums dropping to as low as 16°C (60°F). It's a perfect time for travelers to enjoy warm weather while also being prepared for cooler evenings.

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

The chart illustrates July temperature patterns in Fairfield, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Fairfield, July typically has an average temperature of 26°C (80°F), with highs reaching up to 39°C (102°F) and lows dropping to around 16°C (60°F).

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

July Precipitation in Fairfield

In Fairfield in July, the precipitation amount is 111 mm (4.4 in), occurring over the course of 11 days.

July Precipitation Trends in Fairfield

The chart displays monthly precipitation patterns in Fairfield, 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 Fairfield, July typically receives around 111 mm (4.4 inches) of precipitation spread over approximately 11 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 Fairfield

In Fairfield in July humidity is 75%. With an average temperature of 26°C (80°F), this humidity feels like a warm, muggy embrace, making travel a bit sticky and uncomfortable but also inviting you to slow down and savor the local culture in shaded cafes and breezy spots by the water.

July Average Humidity in Fairfield

This chart illustrates the average monthly humidity levels in Fairfield, 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 Fairfield is approximately 75%, 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 Fairfield

In Fairfield 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 Fairfield.

Maximum UV Index Levels in Fairfield for July

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

Data source: Fairfield 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 Fairfield Compares to Other Months

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

This table compares monthly weather conditions in Fairfield, showing how July’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	4°C (39°F)	91 mm (3.6 inches)	82%	moderate
February Weather	5°C (42°F)	116 mm (4.6 inches)	79%	high
March Weather	11°C (53°F)	144 mm (5.7 inches)	77%	high
April Weather	14°C (58°F)	169 mm (6.7 inches)	78%	very high
May Weather	20°C (68°F)	210 mm (8.3 inches)	82%	extreme
June Weather	24°C (76°F)	93 mm (3.6 inches)	81%	extreme
July Weather	26°C (80°F)	111 mm (4.4 inches)	75%	extreme
August Weather	25°C (78°F)	148 mm (5.8 inches)	61%	very high
September Weather	23°C (74°F)	83 mm (3.3 inches)	59%	very high
October Weather	16°C (61°F)	169 mm (6.7 inches)	69%	high
November Weather	9°C (49°F)	83 mm (3.3 inches)	82%	moderate
December Weather	7°C (44°F)	89 mm (3.5 inches)	87%	moderate