May Weather in Irvine, United States

Last updated: June 24, 2025

In Irvine, United States, the average temperature in May hovers around 17°C (64°F). During this time, you can expect a pleasant range, with minimum temperatures dropping to 9°C (48°F) and highs reaching up to 31°C (88°F). Precipitation is light, totaling 13 mm (0.5 in) over approximately 4 days, while the average humidity sits at a comfortable 70%. This makes for a delightful month to explore!

May Temperature in Irvine

In May in Irvine, the average temperature is 17°C (64°F). The maximum can reach 31°C (88°F) and the minimum can be as low as 9°C (48°F). This range makes it ideal for travelers seeking comfortable weather while exploring the area's attractions.

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

The chart illustrates May temperature patterns in Irvine, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Irvine, May typically has an average temperature of 17°C (64°F), with highs reaching up to 31°C (88°F) and lows dropping to around 9°C (48°F).

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

May Precipitation in Irvine

In Irvine in May, the precipitation amount is 13 mm (0.5 in) over a span of 4 days.

May Precipitation Trends in Irvine

The chart displays monthly precipitation patterns in Irvine, 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 Irvine, May typically receives around 13 mm (0.5 inches) of precipitation spread over approximately 4 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 Irvine

In Irvine in May, humidity is 70%. With an average temperature of 17°C (64°F), this humidity feels like a warm blanket wrapping around you, making traveling a bit sticky but still enjoyable as you explore the sights while staying hydrated.

May Average Humidity in Irvine

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

In Irvine 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 Irvine.

Maximum UV Index Levels in Irvine for May

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

Data source: Irvine 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 Irvine Compares to Other Months

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

This table compares monthly weather conditions in Irvine, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	13°C (56°F)	71 mm (2.8 inches)	74%	moderate
February Weather	13°C (56°F)	60 mm (2.3 inches)	79%	high
March Weather	14°C (58°F)	68 mm (2.7 inches)	75%	very high
April Weather	17°C (62°F)	27 mm (1.1 inches)	70%	very high
May Weather	17°C (64°F)	13 mm (0.5 inches)	70%	extreme
June Weather	20°C (68°F)	1 mm (0.0 inches)	72%	extreme
July Weather	23°C (73°F)	2 mm (0.1 inches)	73%	extreme
August Weather	23°C (74°F)	2 mm (0.1 inches)	69%	very high
September Weather	22°C (72°F)	3 mm (0.1 inches)	68%	very high
October Weather	20°C (69°F)	10 mm (0.4 inches)	67%	high
November Weather	17°C (62°F)	25 mm (1.0 inches)	68%	moderate
December Weather	13°C (56°F)	74 mm (2.9 inches)	71%	moderate