Top Things to Do in San Diego This September: Events, Ocean Adventures & Coastal Fun

 

Whale Breaching, Whale Blows, Whale Fluke and Whale breaching in front of whale watching boat

Planning a San Diego vacation in September? You’re in luck! September offers warm weather, fewer crowds, and some of the most exciting seasonal events in Southern California. Whether you’re looking for family-friendly activities, outdoor adventures, or coastal entertainment, here are the top things to do in San Diego this September.

Miramar Air Show: America’s Largest Military Air Show

One of the most anticipated San Diego September events, the Miramar Air Show is a must-see for aviation enthusiasts and families alike. Held over three days in late September or early October, this high-energy event features:

  • Aerial performances by fighter jets and vintage aircraft
  • Flight simulators and interactive exhibits
  • Ground displays and entertainment for all ages

It’s the largest military air show in the U.S., and a thrilling way to experience San Diego’s aviation history and innovation.

Whale Watching in San Diego: September Sightings

September is a fantastic time for whale watching in San Diego, thanks to calm ocean conditions and active marine life. Book a tour with a trusted operator like Next Level Sailing and enjoy:

  • Possible sightings of blue whales, the largest animals on Earth
  • Humpback whales known for their acrobatic breaches
  • Peaceful ocean views with fewer tourists

Whether you’re a seasoned marine enthusiast or a first-time visitor, San Diego whale watching tours in September offer unforgettable coastal experiences.

San Diego Bayfair: Mission Bay’s High-Speed Weekend

Looking for waterfront events in San Diego? Don’t miss San Diego Bayfair, a three-day festival held at Mission Bay featuring:

  • H1 Unlimited hydroplane racing on one of the sport’s fastest saltwater tracks
  • Beach camping on East Vacation Island—the only time it’s allowed all year
  • RV parking, pit row access, and family-friendly entertainment

With speeds topping 170 MPH and stunning views of the bay, Bayfair is a thrilling way to wrap up summer in San Diego.

Why Visit San Diego in September?

  • Warm weather and sunny skies
  • Lower hotel rates and fewer crowds
  • Ideal conditions for beach days, outdoor dining, and coastal hikes
  • Easy access to North County San Diego gems like Del Mar, Solana Beach, and Encinitas

Where to Stay: Stubbs Vacation Rentals

Make the most of your September getaway with a stay in one of our coastal vacation homes. Stubbs Vacation Rentals offers:

  • Oceanfront properties in Del Mar, Solana Beach, and Encinitas
  • Pet-friendly rentals, family-sized homes, and romantic escapes
  • Easy access to beaches, restaurants, and seasonal events

Browse available homes at Vacation Beach Homes and experience the best of San Diego’s coastal lifestyle.

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