Arroyo Grande Weather in August

August in Arroyo Grande averages 22°C (72°F) during the day and 13°C (55°F) at night. With just 0.2 mm (0.01 in) of rainfall on average, it doesn't get much drier than this.

Rainfall in Arroyo Grande in August

With the driest weather of the year, this month is ideal for outdoor fun. This month experiences about 0 days of rain according to historical data, averaging 0.2 mm (0.01 in).

Temperature in Arroyo Grande in August

Weather in Arroyo Grande is at its excellent in August. Highs reach 22°C (72°F), while nights settle around 13°C (55°F). This kind of day-to-night contrast is typical for this time of year. Nights cool down to 13°C (55°F), so a light jacket or extra layer is useful once the sun goes down. On the plus side, the cooler nights make for comfortable sleeping conditions.

Sunshine in Arroyo Grande in August

The days are predominantly sunny, with an estimated total of around 344 hours of sunshine. These sun-filled days are perfect for playing sports, visiting parks, or going for a bike ride.

Our weather planner can help you find worldwide destinations with pleasant weather during this period. March, April, May, June, July, August, September, October and November typically offer the best weather for Arroyo Grande.