May Weather in San Luis Obispo

Last updated: March 2, 2024

The weather in San Luis Obispo, United States, during May is characterized by an average temperature of 15°C (59°F). Highs can soar to 23°C (74°F), while lows may dip to 9°C (49°F). Typically, the humidity level in San Luis Obispo throughout May hovers around 75%.

9°C (49°F)

Minimum temperature

15°C (59°F)

Average temperature

23°C (74°F)

Maximum temperature

75%

Humidity

Precipitation and Sunshine hours

In May, San Luis Obispo averages 12 mm (0.5 inches) of rainfall, typically over the course of 2 rainy days. The month enjoys an average of 14 hours 1 minutes of daylight, with the sun shining for approximately 11 hours 52 minutes each day. Additionally, there is a 72% probability of sunny days during this period.

12 mm (0.5 inches)

Precipitation

2 rainy days

Rainy days

11 hours 52 minutes

Sunshine hours

72%

Chance of sun

UV Index

In May, the UV Index in San Luis Obispo reaches a maximum of 10, indicating a level of VeryHigh exposure. The most intense UV radiation typically occurs between 12:00 and 14:00, during which unprotected skin may burn in as little as 15 minutes.

Average solar exposure data for the current time of the year. Actual values may vary and depend on many factors, such as cloud cover, vegetation cover, surface type, etc.
	07:00	08:00	09:00	10:00	11:00	12:00	13:00	14:00	15:00	16:00	17:00	18:00	19:00
UVI	1	2	4	6	8	10	10	10	8	5	3	2	1
Exposure	Low		Moderate	High	VeryHigh					Moderate		Low
Time to burn	45 min		30 min	25 min	15 min					30 min		45 min