Typical Weather in San Luis Obispo, CA in August
80° F Avg High
54° F Avg Low
0 Rainy Days
☀️ Temperature Summary
August is one of the warmer months of the year for San Luis Obispo, with highs averaging around 80°F. Overnight lows will be around 54°F on average. Daily high temperatures can range between 79°F and 81°F, and typically fall throughout the month.
The warm, dry temperatures in August make San Luis Obispo a great destination to relax and soak up the sun.
High Temps Throughout the Year
🎒 What to Pack
Pick up a few of these items to keep your trip fun and comfortable.
☔ Rain Summary
In August you can expect close to a 0% chance of rain for any given day. It rains less than usual in August, with total rainfall for the month typically near 0 inches.
Rainfall Throughout the Year
Planning a trip to San Luis Obispo? Try our free trip weather planner