October Weather in Hercules, United States

Last updated: June 24, 2025

In Hercules, United States, the average temperature in October is a pleasant 18°C (64°F). However, temperatures can range from a cool 4°C (40°F) to a warm 36°C (97°F). Expect 25 mm (1.0 in) of precipitation over 2 days, contributing to an average humidity level of 62%.

October Temperature in Hercules

In October in Hercules, the average temperature is 18°C (64°F). The maximum can reach 36°C (97°F) and the minimum can be as low as 4°C (40°F). Be prepared for a wide range of temperatures when traveling to Hercules this month!

October Weather in Hercules: Daily Temperature Highs, Lows, and Averages

The chart illustrates October temperature patterns in Hercules, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Hercules, October typically has an average temperature of 18°C (64°F), with highs reaching up to 36°C (97°F) and lows dropping to around 4°C (40°F).

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

October Precipitation in Hercules

In Hercules in October, the precipitation amount is 25 mm (1.0 in) over the course of 2 days.

October Precipitation Trends in Hercules

The chart displays monthly precipitation patterns in Hercules, with values for each month alongside October’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how October’s conditions compare to those of other months. In Hercules, October typically receives around 25 mm (1.0 inches) of precipitation spread over approximately 2 days.

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

Choose your preferred precipitation unit

Millimeters (mm) Inches (in)

October Humidity in Hercules

In Hercules in October humidity is 62%. With an average temperature of 18°C (64°F), this humidity feels like a warm yet refreshing embrace, making it quite pleasant for traveling as long as you stay hydrated and take breaks in the shade.

October Average Humidity in Hercules

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

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

October UV Index in Hercules

In Hercules in October, the maximum UV index is 6, which corresponds to a high Exposure Category. The time to burn is approximately 25 minutes. To find the hourly UV index in Hercules, you can refer to this Hourly UV Index in Hercules.

Maximum UV Index Levels in Hercules for October

The chart shows the monthly maximum UV Index (UVI) for Hercules in October, 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 October, the maximum UV index in Hercules typically reaches 6, which falls under the high exposure category.

Data source: Hercules October 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 October Weather in Hercules Compares to Other Months

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

This table compares monthly weather conditions in Hercules, showing how October’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	10°C (50°F)	101 mm (4.0 inches)	82%	moderate
February Weather	11°C (53°F)	101 mm (4.0 inches)	84%	moderate
March Weather	12°C (54°F)	77 mm (3.0 inches)	82%	very high
April Weather	15°C (59°F)	32 mm (1.3 inches)	78%	very high
May Weather	17°C (63°F)	18 mm (0.7 inches)	71%	very high
June Weather	19°C (67°F)	1 mm (0.1 inches)	64%	extreme
July Weather	19°C (67°F)	0 mm (0.0 inches)	58%	extreme
August Weather	20°C (68°F)	0 mm (0.0 inches)	54%	very high
September Weather	20°C (68°F)	1 mm (0.0 inches)	55%	very high
October Weather	18°C (64°F)	25 mm (1.0 inches)	62%	high
November Weather	13°C (56°F)	41 mm (1.6 inches)	78%	moderate
December Weather	10°C (50°F)	88 mm (3.5 inches)	80%	moderate