May Weather in Hollister, United States

Last updated: June 24, 2025

In Hollister, United States, the average temperature in May hovers around 14°C (58°F), but don’t be surprised by the extremes—temperatures can dip as low as 4°C (39°F) or soar to a warm 31°C (87°F). Expect about 17 mm (0.7 in) of precipitation over the course of 3 days, contributing to an average humidity level of 71%.

May Temperature in Hollister

In May in Hollister, the average temperature is 14°C (58°F). Maximums can reach 31°C (87°F), and minimums can drop to as low as 4°C (39°F). Be prepared for a range of temperatures, making it ideal for layering your clothing during your travels.

May Weather in Hollister: Daily Temperature Highs, Lows, and Averages

The chart illustrates May temperature patterns in Hollister, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Hollister, May typically has an average temperature of 14°C (58°F), with highs reaching up to 31°C (87°F) and lows dropping to around 4°C (39°F).

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

May Precipitation in Hollister

In Hollister in May, the precipitation amount is 17 mm (0.7 in) over the course of 3 days.

May Precipitation Trends in Hollister

The chart displays monthly precipitation patterns in Hollister, with values for each month alongside May’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how May’s conditions compare to those of other months. In Hollister, May typically receives around 17 mm (0.7 inches) of precipitation spread over approximately 3 days.

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

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Millimeters (mm) Inches (in)

May Humidity in Hollister

In Hollister in May humidity is 71%. With an average temperature of 14°C (58°F), this humidity feels like a damp embrace, making it essential for travelers to pack light, breathable clothing and stay hydrated while exploring the sights.

May Average Humidity in Hollister

This chart illustrates the average monthly humidity levels in Hollister, with May’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In May, average humidity in Hollister is approximately 71%, offering insight into how humid the weather typically is during this month.

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

May UV Index in Hollister

In Hollister in May, 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 Hollister.

Maximum UV Index Levels in Hollister for May

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

Data source: Hollister May 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 May Weather in Hollister Compares to Other Months

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

This table compares monthly weather conditions in Hollister, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	10°C (50°F)	99 mm (3.9 inches)	82%	moderate
February Weather	10°C (51°F)	76 mm (3.0 inches)	84%	moderate
March Weather	11°C (53°F)	83 mm (3.3 inches)	82%	very high
April Weather	13°C (56°F)	26 mm (1.0 inches)	78%	very high
May Weather	14°C (58°F)	17 mm (0.7 inches)	71%	extreme
June Weather	17°C (63°F)	1 mm (0.0 inches)	64%	extreme
July Weather	18°C (65°F)	0 mm (0.0 inches)	58%	extreme
August Weather	19°C (67°F)	1 mm (0.0 inches)	54%	very high
September Weather	18°C (65°F)	5 mm (0.2 inches)	55%	very high
October Weather	16°C (61°F)	15 mm (0.6 inches)	62%	high
November Weather	13°C (55°F)	32 mm (1.3 inches)	78%	moderate
December Weather	10°C (50°F)	83 mm (3.3 inches)	80%	moderate