May Weather in La Mesa, United States

Last updated: June 24, 2025

In May, the average temperature in La Mesa, United States is a comfortable 24°C (76°F). Daytime highs can reach a maximum of 37°C (100°F) while nights might drop to a refreshing minimum of 4°C (39°F). With only 4 mm (0.1 in) of precipitation occurring over 0 days, you can expect mostly dry conditions and an average humidity of 51%. Enjoy the perfect weather!

May Temperature in La Mesa

In May in La Mesa, the average temperature is 24°C (76°F). Maximums can reach 37°C (100°F), and minimums can be as low as 4°C (39°F). It's essential to pack layers and prepare for both warm days and cooler nights when traveling during this month in La Mesa.

May Weather in La Mesa: Daily Temperature Highs, Lows, and Averages

The chart illustrates May temperature patterns in La Mesa, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In La Mesa, May typically has an average temperature of 24°C (76°F), with highs reaching up to 37°C (100°F) and lows dropping to around 4°C (39°F).

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

May Precipitation in La Mesa

In La Mesa in May, the precipitation amount is 4 mm (0.1 in) recorded over a span of 0 days.

May Precipitation Trends in La Mesa

The chart displays monthly precipitation patterns in La Mesa, 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 La Mesa, May typically receives around 4 mm (0.1 inches) of precipitation spread over approximately 0 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 La Mesa

In La Mesa in May humidity is 51%. With an average temperature of 24°C (76°F), this humidity feels like a warm, gentle embrace, making it comfortable for exploring outdoor attractions while still requiring occasional breaks in the shade to stay refreshed.

May Average Humidity in La Mesa

This chart illustrates the average monthly humidity levels in La Mesa, 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 La Mesa is approximately 51%, 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 La Mesa

In La Mesa in May, the maximum UV index reaches 13, which corresponds to an extreme Exposure Category. With a time to burn of just 10 minutes, it's crucial to take protective measures. For detailed information, you can check the Hourly UV Index in La Mesa.

Maximum UV Index Levels in La Mesa for May

The chart shows the monthly maximum UV Index (UVI) for La Mesa 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 La Mesa typically reaches 13, which falls under the extreme exposure category.

Data source: La Mesa 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 La Mesa Compares to Other Months

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

This table compares monthly weather conditions in La Mesa, showing how May’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	7°C (45°F)	12 mm (0.5 inches)	81%	moderate
February Weather	10°C (51°F)	13 mm (0.5 inches)	77%	high
March Weather	15°C (59°F)	17 mm (0.7 inches)	65%	very high
April Weather	20°C (68°F)	4 mm (0.1 inches)	53%	extreme
May Weather	24°C (76°F)	4 mm (0.1 inches)	51%	extreme
June Weather	29°C (84°F)	26 mm (1.0 inches)	51%	extreme
July Weather	29°C (84°F)	34 mm (1.4 inches)	60%	extreme
August Weather	28°C (83°F)	34 mm (1.4 inches)	63%	extreme
September Weather	25°C (77°F)	30 mm (1.2 inches)	74%	extreme
October Weather	19°C (67°F)	22 mm (0.9 inches)	75%	very high
November Weather	13°C (56°F)	14 mm (0.6 inches)	82%	high
December Weather	8°C (47°F)	15 mm (0.6 inches)	87%	moderate