May Weather in Poway, United States

Last updated: June 24, 2025

In Poway, United States, the average temperature in May hovers around 17°C (63°F), making it a pleasant time to explore. Visitors can expect a minimum temperature of 8°C (47°F) and a maximum of 31°C (88°F), offering a comfortable range for outdoor activities. With an average precipitation of 30 mm (1.2 in) spread over 5 days, it's wise to pack a light raincoat. The air tends to be moderately humid, averaging around 46%, ensuring a refreshing atmosphere.

May Temperature in Poway

In May in Poway, the average temperature is 17°C (63°F). The maximum can reach 31°C (88°F), and the minimum can be as low as 8°C (47°F). Overall, it's a great time to visit Poway, offering a pleasant range of temperatures for outdoor activities.

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

The chart illustrates May temperature patterns in Poway, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Poway, May typically has an average temperature of 17°C (63°F), with highs reaching up to 31°C (88°F) and lows dropping to around 8°C (47°F).

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

May Precipitation in Poway

In Poway in May, the precipitation amount is 30 mm (1.2 in) over the course of 5 days.

May Precipitation Trends in Poway

The chart displays monthly precipitation patterns in Poway, 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 Poway, May typically receives around 30 mm (1.2 inches) of precipitation spread over approximately 5 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 Poway

In Poway in May, humidity is 46%. With an average temperature of 17°C (63°F), this humidity feels like a mild embrace—comfortable for exploring the sights, though you might notice a slight heaviness in the air that encourages a leisurely pace as you take in the vibrant surroundings.

May Average Humidity in Poway

This chart illustrates the average monthly humidity levels in Poway, 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 Poway is approximately 46%, 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 Poway

In Poway 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 Poway.

Maximum UV Index Levels in Poway for May

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

Data source: Poway 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 Poway Compares to Other Months

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

This table compares monthly weather conditions in Poway, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	12°C (55°F)	73 mm (2.9 inches)	72%	moderate
February Weather	12°C (55°F)	88 mm (3.5 inches)	77%	high
March Weather	14°C (57°F)	76 mm (3.0 inches)	67%	very high
April Weather	16°C (61°F)	35 mm (1.4 inches)	56%	very high
May Weather	17°C (63°F)	30 mm (1.2 inches)	46%	extreme
June Weather	20°C (68°F)	4 mm (0.2 inches)	48%	extreme
July Weather	23°C (74°F)	4 mm (0.1 inches)	46%	extreme
August Weather	24°C (75°F)	2 mm (0.1 inches)	42%	very high
September Weather	22°C (73°F)	5 mm (0.2 inches)	52%	very high
October Weather	20°C (68°F)	15 mm (0.6 inches)	58%	high
November Weather	16°C (62°F)	39 mm (1.5 inches)	66%	moderate
December Weather	13°C (55°F)	74 mm (2.9 inches)	74%	moderate