July Weather in Arcata, United States

Last updated: June 24, 2025

In Arcata, United States, the average temperature in July settles around 15°C (59°F). During this time, temperatures can dip as low as 8°C (48°F) and reach a pleasant 24°C (75°F). Expect minimal precipitation with just 6 mm (0.2 in) over the month, spread across 0 days. With an average humidity of 70%, the climate remains comfortably mild.

July Temperature in Arcata

In July in Arcata, the average temperature is 15°C (59°F). Maximums can reach 24°C (75°F), while minimums can dip as low as 8°C (48°F). This mild weather makes it an ideal time for travelers to explore and enjoy outdoor activities in Arcata.

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

The chart illustrates July temperature patterns in Arcata, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Arcata, July typically has an average temperature of 15°C (59°F), with highs reaching up to 24°C (75°F) and lows dropping to around 8°C (48°F).

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

July Precipitation in Arcata

In Arcata in July, the total precipitation amount is 6 mm (0.2 in), spread over a duration of 0 days.

July Precipitation Trends in Arcata

The chart displays monthly precipitation patterns in Arcata, 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 Arcata, July typically receives around 6 mm (0.2 inches) of precipitation spread over approximately 0 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 Arcata

In Arcata in July, humidity is 70%. With an average temperature of 15°C (59°F), this humidity feels like a warm embrace, making it slightly uncomfortable while traveling, as the moist air clings to your skin and can leave you feeling slightly lethargic.

July Average Humidity in Arcata

This chart illustrates the average monthly humidity levels in Arcata, 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 Arcata is approximately 70%, 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 Arcata

In Arcata in July, the maximum UV index reaches 10, which corresponds to a very high Exposure Category. With a time to burn of just 15 minutes, it's crucial to take precautions. For more detailed information, you can check the Hourly UV Index in Arcata.

Maximum UV Index Levels in Arcata for July

The chart shows the monthly maximum UV Index (UVI) for Arcata 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 Arcata typically reaches 10, which falls under the very high exposure category.

Data source: Arcata 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 Arcata Compares to Other Months

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

This table compares monthly weather conditions in Arcata, showing how July’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	8°C (46°F)	219 mm (8.6 inches)	86%	moderate
February Weather	7°C (45°F)	212 mm (8.3 inches)	85%	moderate
March Weather	8°C (46°F)	176 mm (6.9 inches)	85%	high
April Weather	9°C (49°F)	108 mm (4.2 inches)	82%	very high
May Weather	11°C (52°F)	64 mm (2.5 inches)	81%	very high
June Weather	14°C (57°F)	22 mm (0.9 inches)	79%	extreme
July Weather	15°C (59°F)	6 mm (0.2 inches)	70%	very high
August Weather	16°C (61°F)	5 mm (0.2 inches)	60%	very high
September Weather	15°C (59°F)	29 mm (1.1 inches)	62%	very high
October Weather	12°C (54°F)	62 mm (2.4 inches)	72%	high
November Weather	10°C (49°F)	133 mm (5.2 inches)	87%	moderate
December Weather	7°C (45°F)	165 mm (6.5 inches)	86%	low