Climate Insights for Arroyo Grande

The climate in Arroyo Grande is hot. The average annual temperature is 25°C and approximately 1,458 mm of precipitation falls per year. Arroyo Grande receives a notable amount of rainfall throughout the year, including during its driest month. Arroyo Grande is in the Northern Hemisphere. Summer begins at the end of June and lasts through September. The summer months are: August, July, September. The coldest months are January, February, December, when temperatures can drop to 19°C.The climate in Arroyo Grande is hot. The average annual temperature is 77°F and approximately 57.4 in of precipitation falls per year. Arroyo Grande receives a notable amount of rainfall throughout the year, including during its driest month. Arroyo Grande is in the Northern Hemisphere. Summer begins at the end of June and lasts through September. The summer months are: August, July, September. The coldest months are January, February, December, when temperatures can drop to 66°F.

Arroyo Grande sees moderate temperature variation throughout the year, ranging from 19°C to 31°C. The warmest month is August, when average highs reach 31°C and the mean temperature sits around 29°C. January is the coolest month, with minimum temperatures around 19°C and an average of 21°C. Daily temperature variation is modest, with an average difference of 4°C between highs and lows. The sharpest temperature change occurs between October and November, with a 2°C shift in average temperatures.Arroyo Grande sees moderate temperature variation throughout the year, ranging from 66°F to 87°F. The warmest month is August, when average highs reach 87°F and the mean temperature sits around 83°F. January is the coolest month, with minimum temperatures around 66°F and an average of 69°F. Daily temperature variation is modest, with an average difference of 8°F between highs and lows. The sharpest temperature change occurs between October and November, with a 4°F shift in average temperatures.

Arroyo Grande is a fairly wet location, receiving approximately 1,458 mm of precipitation annually, which averages out to around 122 mm per month. The wettest month is October, averaging 279 mm of rainfall. September and June also tend to see above-average precipitation. The driest month is March, with just 58 mm. That's 221 mm less than October, the wettest month. Precipitation varies noticeably between seasons, with the second half (July to December) of the year generally seeing more rainfall.Arroyo Grande is a fairly wet location, receiving approximately 57.4 in of precipitation annually, which averages out to around 4.8 in per month. The wettest month is October, averaging 11 in of rainfall. September and June also tend to see above-average precipitation. The driest month is March, with just 2.3 in. That's 8.7 in less than October, the wettest month. Precipitation varies noticeably between seasons, with the second half (July to December) of the year generally seeing more rainfall.

Arroyo Grande is mildly breezy, with an average annual wind speed of 12km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is January, averaging 13km/h, though still comfortable for most outdoor activities. The calmest conditions occur in September, with average winds dropping to 11km/h, making it an ideal period for wind-sensitive activities. Wind conditions are fairly consistent throughout the year, varying by only 2km/h between the calmest and windiest months.Arroyo Grande is moderately windy, with an average annual wind speed of 8mph. For context, sustained winds below 7mph are generally light, while anything above 16mph is considered strong. The windiest month is January, averaging 8mph, noticeable enough to affect lighter outdoor activities. The calmest conditions occur in September, with average winds dropping to 7mph, making it an ideal period for wind-sensitive activities. Wind conditions are fairly consistent throughout the year, varying by only 1mph between the calmest and windiest months.

The best time to visit Arroyo Grande is during January, February, March and December, when the weather is most comfortable for travellers. During these months, average temperatures hover around 22°C with modest rainfall averaging 74 mm per month. By contrast, August can be uncomfortably hot with temperatures reaching 31°C. Despite being the best months overall, some rain is still likely. Pack a waterproof layer and plan a mix of indoor and outdoor activities.The best time to visit Arroyo Grande is during January, February, March and December, when the weather is most comfortable for travellers. During these months, average temperatures hover around 71°F with modest rainfall averaging 2.9 in per month. By contrast, August can be uncomfortably hot with temperatures reaching 87°F. Despite being the best months overall, some rain is still likely. Pack a waterproof layer and plan a mix of indoor and outdoor activities.

The table below shows monthly climate averages for Arroyo Grande based on historical weather data. Min and max temperatures represent typical overnight lows and afternoon highs for each month, shown in degrees Celsius (°C). Precipitation is measured in millimetres (mm) and indicates the average total rainfall per month. Wind speed is the average sustained speed in kilometres per hour (km/h). All values are based on averages from over 10 years of historical weather data. The current month is highlighted for quick reference.The table below shows monthly climate averages for Arroyo Grande based on historical weather data. Min and max temperatures represent typical overnight lows and afternoon highs for each month, shown in degrees Fahrenheit (°F). Precipitation is measured in millimetres (mm) and indicates the average total rainfall per month. Wind speed is the average sustained speed in miles per hour (mph). All values are based on averages from over 10 years of historical weather data. The current month is highlighted for quick reference.