Arroyo Grande (CA) Climate by Month
Arroyo Grande maintains a fairly consistent pleasant average temperature.
It maintains fairly dry conditions year-round.
Let's now guide you through the climate details for a complete overview.
Average day and night temperature
In Arroyo Grande temperatures are generally consistent throughout the year. On average, daytime temperatures range from a comfortable 23°C in September to a moderate 18°C in December. Nighttime temperatures can drop, with averages reaching 6°C in December.
The mean minimum and maximum temperatures throughout the year
Precipitation and rainy days
Arroyo Grande's climate is marked by below-average rainfall, accumulating 317 mm of precipitation yearly. The seasons in Arroyo Grande, bring significant changes in precipitation. The wettest month, December, receives moderate rainfall, with an average of 74 mm of precipitation. This rainfall is distributed across 9 rainy days. In contrast, the driest month, August, experiences much less rainfall, totaling 0.2 mm over 0 rainy days. These distinct seasonal differences provide diverse experiences throughout the year.The mean monthly precipitation over the year, including rain, hail and snow
The average number of days each month with precipitation
Sunshine over the year
In Arroyo Grande, summer days are longer and more sunny, with daily sunshine hours peaking at 11.7 hours in July. As the darker season arrives, the brightness of the sun becomes less. January sees a soft sun for only 6.9 hours.Monthly hours of sunshine
Data from: Paso Robles, the United States of America (57 KM, 35 Miles).
Daily hours of sunshine
Data from: Paso Robles, the United States of America (57 KM, 35 Miles).
The best time of year to visit Arroyo Grande in the United States of America
During the months of May, June, July, August, September, October and November you are most likely to experience good weather with pleasant average temperatures that fall between 20°C and 26°C.Other facts from our historical weather data:
Yes, the months of May, June, July, August and September are very dry.
September has an average maximum temperature of 23°C and is the warmest month of the year.
The coldest month is December with an average maximum temperature of 18°C.
December tops the wettest month list with 74 mm of rainfall.
August is the driest month with 0 mm of precipitation.
July is the sunniest month with an average of 352 hours of sunshine.
No idea where to travel to this year? We have a tool that recommends destinations based on your ideal conditions. Find out where to go with our weather planner.
