May Weather in Pleasanton, United States

Last updated: June 24, 2025

In May, the average temperature in Pleasanton, United States hovers around 17°C (63°F). However, you may experience a wide range, with minimums dipping to 5°C (41°F) and soaring up to a sweltering 36°C (96°F). Expect a total precipitation of 16 mm (0.6 in) over 2 days, with humidity levels averaging at 71%. Stay prepared for whatever the weather brings!

May Temperature in Pleasanton

In May in Pleasanton, the average temperature is 17°C (63°F), with maximum temperatures soaring to 36°C (96°F) and minimums dipping as low as 5°C (41°F). It’s a great time to pack for varying weather conditions while exploring the diverse offerings of Pleasanton.

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

The chart illustrates May temperature patterns in Pleasanton, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Pleasanton, May typically has an average temperature of 17°C (63°F), with highs reaching up to 36°C (96°F) and lows dropping to around 5°C (41°F).

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

May Precipitation in Pleasanton

In Pleasanton in May, the precipitation amount is 16 mm (0.6 in) over a period of 2 days.

May Precipitation Trends in Pleasanton

The chart displays monthly precipitation patterns in Pleasanton, 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 Pleasanton, May typically receives around 16 mm (0.6 inches) of precipitation spread over approximately 2 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 Pleasanton

In Pleasanton in May, humidity is 71%. With an average temperature of 17°C (63°F), this humidity feels like a warm embrace, making outdoor activities enjoyable yet a bit sticky, so travelers should stay hydrated and take breaks in the shade.

May Average Humidity in Pleasanton

This chart illustrates the average monthly humidity levels in Pleasanton, 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 Pleasanton 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 Pleasanton

In Pleasanton 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 Pleasanton.

Maximum UV Index Levels in Pleasanton for May

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

Data source: Pleasanton 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 Pleasanton Compares to Other Months

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

This table compares monthly weather conditions in Pleasanton, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	9°C (49°F)	93 mm (3.7 inches)	82%	moderate
February Weather	11°C (51°F)	81 mm (3.2 inches)	84%	moderate
March Weather	12°C (54°F)	74 mm (2.9 inches)	82%	very high
April Weather	14°C (58°F)	28 mm (1.1 inches)	78%	very high
May Weather	17°C (63°F)	16 mm (0.6 inches)	71%	extreme
June Weather	20°C (69°F)	1 mm (0.0 inches)	64%	extreme
July Weather	22°C (72°F)	0 mm (0.0 inches)	58%	extreme
August Weather	22°C (72°F)	0 mm (0.0 inches)	54%	very high
September Weather	21°C (69°F)	2 mm (0.1 inches)	55%	very high
October Weather	17°C (63°F)	22 mm (0.9 inches)	62%	high
November Weather	13°C (55°F)	35 mm (1.4 inches)	78%	moderate
December Weather	9°C (49°F)	78 mm (3.1 inches)	80%	moderate