Best Time to Visit San Diego — Understanding “America’s Finest City” Perfect Climate By Travel Tourister | Updated February 2026 San Diego doesn’t have a traditionally “best” time to visit because its Mediterranean climate delivers remarkably consistent conditions year-round: 70°F average temperature (ranging only 60-78°F across entire year), 266 sunny days annually, minimal rainfall concentrated … Continue reading Best Time to Visit San Diego 2026: Perfect Weather Year-Round Guide