Monthly weather forecast and climate
Arroyo Grande, CA

Contents

FAQ

What is the coldest month in Arroyo Grande?

The coldest months in Arroyo Grande are January and December, with an average high-temperature of 60.1°F (15.6°C).

What is the warmest month in Arroyo Grande?

The warmest month in Arroyo Grande, California, is September, with an average high-temperature of 68°F (20°C) and an average low-temperature of 54°F (12.2°C).

Average temperature
Arroyo Grande, CA

Average temperature - Arroyo Grande, CA

The warmest month (with the highest average high temperature) is September (68°F).
Months with the lowest average high temperature are January and December (60°F).

The month with the highest average low temperature is August (55°F).
The coldest month (with the lowest average low temperature) is December (44°F).

Average daylight
Arroyo Grande, CA

Average daylight - Arroyo Grande, CA

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

°Celsius°Fahrenheit
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