San Diego
San Diego travel guide
Balboa Park museums, La Jolla sea lions and fish tacos by the bay
San Diego mixes a long sunny coastline with the zoo, the museums of Balboa Park and a short trip to the Mexican border. Go from August to October for the warmest sea and clearest skies. Allow four or five days. Costs are very high by global standards, and an ESTA is required for Visa Waiver passports.
California's southernmost big city curls around a deep natural bay a few kilometres north of the Mexican border. Visitors come for some 110 km of coastline, a climate that rarely strays far from 20C, the San Diego Zoo in Balboa Park and an easy day across the border in Tijuana.
Spanish settlement in California began here in 1769 with the Presidio and Mission San Diego de Alcalá. Old Town keeps adobe buildings from the Mexican era. Across the city, Spanish is heard on the street and printed on shop signs.
The Navy shapes the waterfront. Carriers dock at North Island on Coronado, and the decommissioned USS Midway is now a museum moored beside downtown. Planes into the airport descend so close to the downtown towers that first-timers tend to grip the armrest.
Each beach has its own character. Pacific Beach and Mission Beach share a boardwalk busy with bikes and skaters. Ocean Beach is scruffier and more local. La Jolla has tide pools, sea caves and a colony of sea lions. Coronado's wide sand runs in front of the Hotel del Coronado, the white-and-red wooden resort from 1888.
The metro area sprawls; a car helps for anything beyond downtown and the trolley lines. Four or five days covers the city, the zoo and a beach or two. A gray marine layer often hangs over the coast in May and June. September is the clear, warm month.
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Top things to do in San Diego
Beaches, cliffs and tide pools, a park full of museums, a world-famous zoo, naval history and the Mexican border on the Trolley.
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Best time to visit San Diego
Month by month, so you can pick the weather and the crowds you want.
Highs of 24 to 25C, almost no rain and the warmest sea of the year.
Mild at 21 to 22C but often gray along the coast until midday, a pattern locals call May Gray and June Gloom.
Still around 19C by day, with most of the year's rain (about 50 mm in January) and good whale-watching offshore.
Comic-Con International takes over the Convention Center and the Gaslamp Quarter for several days each July; downtown hotels sell out months ahead.
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Getting there
Route 992, the SAN Flyer and Santa Fe Depot
San Diego International sits on the bay at Lindbergh Field, only a few kilometres from downtown. Alaska and Southwest carry most traffic, with nonstops across the US plus Mexico, Canada and a few long-haul routes to Europe and Japan. MTS Route 992 runs from both terminals to downtown and Santa Fe Depot about every 15 minutes. The free SAN Flyer shuttle goes to Old Town Transit Center for the Trolley, Coaster and Amtrak. Taxis and rideshares reach the Gaslamp in about 10 minutes. Amtrak's Pacific Surfliner runs from Los Angeles to Santa Fe Depot. Travellers from Mexico can use the Cross Border Xpress bridge from Tijuana airport.
- MTS Route 992
- Terminals to downtown and Santa Fe Depot, about every 15 minutes until the end of service
- SAN Flyer
- Free shuttle to Old Town Transit Center for Trolley, Coaster and Amtrak
- Amtrak Pacific Surfliner
- Los Angeles Union Station to Santa Fe Depot along the coast
- Cross Border Xpress
- Pedestrian bridge from Tijuana airport straight into San Diego
- Many international visitors fly into Los Angeles instead; the Surfliner then makes a scenic ride south.
- Check the current Route 992 stop at Terminal 1, which has moved during the new terminal's construction.
Where to stay
Gaslamp, Little Italy, La Jolla or Coronado
Downtown is the hub for transit and nightlife, the beaches suit longer stays, and Coronado and La Jolla are the calm, upmarket choices. Plan around a car or the Trolley.
- Gaslamp Quarter
- Victorian blocks of bars and restaurants by the Convention Center; noisy and pricey during events
- Little Italy
- Walkable restaurant streets near the airport and Santa Fe Depot, with the Saturday market
- Pacific Beach and Mission Beach
- On the sand and the boardwalk; young party crowd at weekends
- La Jolla and Coronado
- Quiet, polished seaside streets; far from the Trolley and expensive
- Hillcrest and North Park, near Balboa Park, have smaller hotels and the city's best neighbourhood restaurants.
Getting around
The Trolley, Coronado ferry and coast roads
MTS runs the San Diego Trolley (Blue, Orange, Green and Copper lines) and city buses; pay with the PRONTO card or app. The Blue Line runs from downtown to the San Ysidro border and north to UC San Diego, while the Green Line links Old Town, Mission Valley and the Gaslamp. Ferries cross the bay from Broadway Pier to Coronado. Beaches and La Jolla are poorly served by rail, so most visitors rent a car for those; parking along the coast is metered and tight in summer. Downtown, the Embarcadero waterfront is easy to walk.
- Blue Line Trolley
- Downtown to San Ysidro border crossing in about 45 minutes
- Green Line Trolley
- Old Town, Mission Valley stadium area and the Gaslamp
- Coronado ferry
- Broadway Pier to Coronado Ferry Landing across the bay
- Car
- Freeways are called by number (I-5, I-8, SR-163), not by name
- Downtown addresses west of First Avenue carry the word West; elsewhere, directions are usually left off.
Know before you go
What makes San Diego worth the trip, and what catches visitors out.
Why travelers love it
- Balboa Park's Spanish Revival halls, built for the 1915 exposition, with some 17 museums, gardens and the zoo in one park.
- La Jolla Cove at low tide, when seals and sea lions haul out on the rocks below Ellen Browning Scripps Park.
- The flight deck of USS Midway, a carrier museum moored on the Embarcadero.
- Sunset at Cabrillo National Monument on Point Loma, looking over the bay entrance and the downtown skyline.
- Torrey Pines State Natural Reserve, where sandstone cliff trails drop to a long, quiet beach.
Good to know
- The ocean is cold for much of the year; water stays cool until late summer even when the air is warm.
- Bars stop serving at 2am, with last call around 1:30.
- Leave nothing in parked cars at beach lots and trailheads; break-ins are the common crime here.
- Crossing to Tijuana needs a passport for the return, and the San Ysidro queue back can be long.
Trip fit
BookingMentor editorial ratings out of 5, based on a first-time visitor's experience.
Weather in San Diego, month by month
San Diego is mild all year, with grey June Gloom mornings in early summer and the warmest sea in August and September. Month by month, the averages show how small the swings are.
Climate figures are approximate long-term averages for San Diego (NOAA, via Wikipedia).
Balboa Park, Point Loma and La Jolla Cove in four days
Day one. Give the morning to the San Diego Zoo in Balboa Park, arriving at opening before the heat and the school groups. After lunch, wander the Prado past the Botanical Building and the California Tower, and choose one or two museums, perhaps the San Diego Museum of Art or the Museum of Us. In the evening, eat in Hillcrest or North Park, just north of the park.
Day two. Walk the Embarcadero to USS Midway, then take the ferry from Broadway Pier to Coronado and walk along the sand to the Hotel del Coronado. Back downtown, finish in Little Italy or the Gaslamp Quarter.
Day three. Drive or ride to Old Town for the adobe buildings and Mexican-era history, then head west to Cabrillo National Monument on Point Loma. Time it for low tide to explore the tide pools on the western side, and stay for sunset over the bay.
Day four. Spend the morning at La Jolla Cove watching seals and sea lions, then hike the cliff trails at Torrey Pines. With a fifth day, take the Blue Line Trolley to San Ysidro and walk across to Tijuana, or ride the Surfliner north to Los Angeles.
Balboa Park deserves a full day on its own. The city lists it at more than 1,000 acres (most sources say about 1,200), with 15 or more museums along El Prado and the San Diego Zoo inside its boundary, though the zoo is run separately from the city parks department. More than 14 million people a year come through. Walking the Spanish Revival arcades and gardens costs nothing; each museum and the zoo charges its own entry, and several museums close one weekday, so check before building a museum route.
On the downtown waterfront at Navy Pier, 910 North Harbor Drive, the USS Midway Museum fills the 1,001-foot carrier that served from the end of the Second World War to Desert Storm. Around 30 restored aircraft sit on the flight and hangar decks, and the ticket includes a self-guided audio tour narrated by former Midway sailors. Allow two to four hours.
Fish tacos, California burritos and Little Italy's Mercato
Baja California is next door, and the food shows it. The fish taco, battered white fish in a corn tortilla with cabbage, crema and salsa, is the local signature, sold at taco shops and beach stands along the coast. The California burrito puts carne asada and French fries inside a flour tortilla; its cousin, carne asada fries, is late-night fuel after the bars.
Old Town's restaurants lean towards Mexican plates in a historic setting, while the most loved taco shops are often unremarkable buildings in neighbourhoods like Barrio Logan and Mission Hills. Head across the border to Tijuana for street tacos with a different accent.
Little Italy, by the airport, has the most concentrated restaurant streets downtown, with Italian delis and newer seafood and Californian kitchens. Its Saturday Mercato farmers' market is one of the biggest in the region. Hillcrest, North Park and Kensington have the neighbourhood places locals use, and Convoy Street in Kearny Mesa is the area for Asian food.
Beer is a local pride: San Diego has dozens of craft breweries, many with tasting rooms in North Park and Miramar. Remember that alcohol sales stop at 2am.
June Gloom, Comic-Con and the winter whale migration
San Diego's climate barely moves. Highs stay between 19C in winter and 25C in August and September, and lows only drop to about 10C. Almost all rain falls between November and March, with February the wettest at about 56 mm; from May to September there is next to none.
That does not mean every summer day is sunny. In May and June, a low marine layer often covers the coast until early afternoon, known locally as May Gray and June Gloom. Inland areas burn off first. The sea is warmest in August and September, which is also when the beaches are at their best.
Each July, Comic-Con International fills the San Diego Convention Center and spills into the Gaslamp Quarter for several days. Badges sell out long before the event and hotel rooms downtown are booked months in advance, so plan other trips around it unless you are going.
Winter has its own draw: gray whales migrate along the coast roughly from December to April, and boats leave from the bay to watch them. December brings holiday lights to Balboa Park, and the weather stays mild enough for a walk on the beach at Christmas.
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How we research our San Diego travel guide
San Diego's Trolley routes, Comic-Con dates and the grey and blue whale seasons are rechecked when they change. City details follow the City of San Diego website, with entry rules from the State Department and park facts from the National Park Service.
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Checked against trusted sources:
Official website of San DiegoUS State DepartmentNational Park Service
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Frequently Asked Questions (FAQs)
Quick answers to the questions travelers ask most before visiting San Diego.
Getting there
MTS Route 992 runs from both terminals to downtown about every 15 minutes. Taxis and rideshares take about 10 minutes to the Gaslamp.
General
A free airport shuttle to Old Town Transit Center, timed to connect with the Trolley, Coaster commuter trains and Amtrak.
Yes. The Blue Line runs from downtown to San Ysidro in about 45 minutes, and you walk across into Tijuana. Bring a passport for the return.
At La Jolla Cove and the nearby Children's Pool, where they rest on rocks and sand. Keep your distance; the animals are protected.
In late summer, yes. It is coolest in winter and spring; August and September are the warmest months for the water. Many surfers wear wetsuits year-round.
A low cloud layer from the ocean that often covers the coast until early afternoon in May and June. It is mild, rarely rainy, and usually clears inland first.
It helps, as the Trolley only reaches UC San Diego, a drive from the coast. Buses run, but a car or rideshare saves time; beach parking fills in summer.
MTS runs the San Diego Trolley (Blue, Orange, Green and Copper lines) and city buses; pay with the PRONTO card or app. The Blue Line runs from downtown to the San Ysidro border and north to UC San Diego, while the Green Line links Old Town, Mission Valley and the Gaslamp. Ferries cross the bay from Broadway Pier to Coronado.
Booking
Four or five days lets you see the zoo, Balboa Park, Coronado and La Jolla without rushing. Add a day for Tijuana or the Safari Park near Escondido.
Timing & weather
Each July, over several days at the San Diego Convention Center. Hotels downtown sell out, so visit at another time unless you have a badge.
The best time to visit San Diego is Aug to Oct. Highs of 24 to 25C, almost no rain and the marine layer of May and June gone.
- Best overall: August - October (Highs of 24 to 25C, almost no rain and the warmest sea of the year)
- Early summer: May - June (Mild at 21 to 22C but often gray along the coast until midday, a pattern locals call May Gray and June Gloom)
- Winter: December - March (Still around 19C by day, with most of the year's rain (about 50 mm in January) and good whale-watching offshore)
August is the warmest month in San Diego, with average highs of 25°C, and January the coolest, with lows of 10°C. February is the wettest month, at about 56 mm of rain; August is the driest. San Diego is mild all year, with grey June Gloom mornings in early summer and the warmest sea in August and September.
Stay & facilities
Fish tacos and the California burrito with fries inside are the local classics. Little Italy and Convoy Street are good areas for broader dining.
Visa & documents
With an approved ESTA, citizens of Visa Waiver Program countries (most of Europe, the UK, Japan, South Korea, Australia and New Zealand among them) can stay up to 90 days. Everyone else needs a B-2 visitor visa, which means an interview at a US embassy. Since January 2026 nationals of a number of countries face full or partial entry restrictions.
Health & safety
Trouble is rare on a US trip. Petty theft and car break-ins are the most common problems for visitors, so leave nothing visible in a parked car, especially at trailheads. Natural hazards deserve real respect: hurricanes hit the south-east from June to November, and the west sees wildfires and extreme heat.