Best Time to Visit San Francisco Overview By Travel Tourister | Updated February 2026 Quick Answer: September-November is the best time to visit San Francisco. These months offer the warmest temperatures (65-75°F), clearest skies, minimal fog, and comfortable conditions for sightseeing. Contrary to popular belief, summer (June-August) is San Francisco’s COLDEST and foggiest season—tourists shivering … Continue reading Best Time to Visit San Francisco: Complete 2026 Guide