Monthly weather forecast and climate
San Luis Obispo, CA

A beautiful view of fog on the blue water surrounded by scenic mountain ranges at the San Luis Obispo, California, a beautiful blue skyline in the far
A beautiful view of fog on the blue water surrounded by scenic mountain ranges at the San Luis Obispo, California, a beautiful blue skyline in the far
The coldest months are January and December, with an average high-temperature of 61.2°F (16.2°C). In San Luis Obispo, during January, the rain falls for 8.8 days and regularly aggregates up to 4.9" (125.7mm) of precipitation.
Weather in January »
The average high-temperature, in February, is 62.1°F (16.7°C), while the average low-temperature is 44.8°F (7.1°C). February is the month with the most rainfall.
Weather in February »
In March, the average high-temperature is 63.7°F (17.6°C), and the average low-temperature is 45.9°F (7.7°C). In San Luis Obispo, in March, it is raining for 9.1 days, with typically 4" (100.8mm) of accumulated precipitation.
Weather in March »
In San Luis Obispo, California, the average high-temperature is 66.4°F (19.1°C), and the average low-temperature is 46.9°F (8.3°C). In April, in San Luis Obispo, the rain falls for 4.4 days.
Weather in April »
In May, in San Luis Obispo, the average high-temperature is 69.3°F (20.7°C), and the average low-temperature is 49.3°F (9.6°C). In San Luis Obispo, during May, the rain falls for 2.2 days and regularly aggregates up to 0.5" (11.9mm) of precipitation.
Weather in May »
In June, the average high-temperature is 73°F (22.8°C), and the average low-temperature is 52.2°F (11.2°C). In San Luis Obispo, California, during June, the rain falls for 0.6 days and regularly aggregates up to 0.1" (2.5mm) of precipitation.
Weather in June »
In July, the average high-temperature is 75.9°F (24.4°C), and the average low-temperature is 54.5°F (12.5°C). July is the month with the least rainfall.
Weather in July »
Warmest months in San Luis Obispo are August and September, with an average high-temperature of 76.8°F (24.9°C). In San Luis Obispo, during 0.3 rainfall days, 0" (1mm) of precipitation is typically accumulated.
Weather in August »
Warmest months are August and September, with an average high-temperature of 76.8°F (24.9°C). In San Luis Obispo, California, in September, it is raining for 1.2 days, with typically 0.3" (6.6mm) of accumulated precipitation.
Weather in September »
In San Luis Obispo, in October, the average high-temperature is 73.8°F (23.2°C), and the average low-temperature is 51.4°F (10.8°C). In San Luis Obispo, during October, the rain falls for 3 days and regularly aggregates up to 0.9" (23.6mm) of precipitation.
Weather in October »
The average high-temperature, in November, is 67.3°F (19.6°C), while the average low-temperature is 47.1°F (8.4°C). In November, the rain falls for 4.9 days.
Weather in November »
The coldest months are January and December, with an average high-temperature of 61.2°F (16.2°C). In San Luis Obispo, during December, the rain falls for 7.7 days and regularly aggregates up to 3.7" (94.2mm) of precipitation.
Weather in December »

What is the coldest month in San Luis Obispo?

The coldest months in San Luis Obispo, California, are January and December, with an average high-temperature of 61.2°F (16.2°C).

How much does it rain in San Luis Obispo?

Throughout the year, there are 52.3 rainfall days, and 23.1" (587mm) of precipitation is accumulated.

What is the rainiest month in San Luis Obispo?

February is the month with the most rainfall. Rain falls for 9.7 days and accumulates 5.1" (130mm) of precipitation.

When are the longest days in San Luis Obispo?

With an average of 14.5h of daylight, June has the longest days of the year in San Luis Obispo.

What is the driest month in San Luis Obispo?

July is the month with the least rainfall in San Luis Obispo. Rain falls for 0.4 days and accumulates 0" (0.5mm) of precipitation.

What are the warmest months in San Luis Obispo?

Warmest months in San Luis Obispo, California, are August and September, with an average high-temperature of 76.8°F (24.9°C).

What is the month with the shortest days in San Luis Obispo?

With an average of 9.8h of daylight, December has the shortest days of the year in San Luis Obispo, California.
Average temperature - San Luis Obispo, CA
Average rainfall - San Luis Obispo, CA
Average rainfall days - San Luis Obispo, CA

The month with the highest number of rainy days is February (9.7 days).
The month with the lowest number of rainy days is August (0.3 days).

Average daylight - San Luis Obispo, CA

The month with the longest days is June (Average daylight: 14.5h).
The month with shortest days is December (Average daylight: 9.8h).

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