Monarch Butterfly Migration in San Diego: Where & When to Look

Monarch butterflies pass through and winter in coastal California from about October to early February, but San Diego County has no big, famous overwintering grove. Here you are more likely to see single monarchs in gardens than great hanging clusters. The surest way to see butterflies up close in San Diego is the Safari Park’s spring Butterfly Jungle. For free, wild sightings, visit pollinator gardens like Balboa Park’s Zoro Garden or the San Diego Botanic Garden in Encinitas.

How the western monarch migration works

Monarchs west of the Rocky Mountains mostly spend winter in forested groves along the California coast. The eastern population flies to Mexico instead. According to the Xerces Society, monarchs usually arrive at California sites in October and stay until early February, depending on the weather. Viewing peaks from mid-November through December.

The best-known public groves are well north of San Diego:

• Natural Bridges State Beach (Santa Cruz)
• Pacific Grove (Monterey)
• Pismo State Beach (San Luis Obispo County)
• The Goleta Butterfly Grove at Ellwood Mesa (Santa Barbara County)
• Camino Real Park (Ventura)

How many monarchs are there now?

Far fewer than there used to be. The annual Western Monarch Count, with results released in January 2026, found about 12,260 monarchs at 249 sites. That was the third-lowest total since counting began in 1997. In the 1980s the population was regularly in the low millions (Xerces Society results). The 2025 peak came in late November through early December, and the largest single count was about 2,500 at Natural Bridges.

The latest count does not highlight any San Diego County site. If you want to see a real winter cluster, plan a road trip north. Ventura and Santa Barbara are the closest major groves.

Monarchs in San Diego: what to realistically expect

In San Diego you will mostly see monarchs one or two at a time, feeding on flowers or laying eggs on milkweed in gardens, parks and backyards. Sightings happen in every season because the climate is mild. That year-round breeding is part of a conservation concern (see the milkweed note below).

Good conditions for spotting them:

• Sunny days above about 55°F, when monarchs are active and flying. Xerces gives this threshold for overwintering sites, and the same idea applies in gardens.
• Late morning to mid-afternoon, after the sun has warmed things up.
• Flowering gardens with milkweed and nectar plants such as lantana, verbena, butterfly bush and native sages.

Where to see butterflies in San Diego

Place	Best for	Cost	When
Safari Park Butterfly Jungle (Escondido)	Free-flying butterflies up close	$18 add-on plus park admission (2026)	Spring only
Zoro Garden, Balboa Park	Free, wild butterflies in a historic garden	Free	Year-round
San Diego Botanic Garden (Encinitas)	Large gardens, pollinator plantings	$20 adults	Year-round, closed Tuesdays
Central Coast groves	Winter monarch clusters	Mostly free; parking varies	Oct–Feb

Safari Park: Butterfly Jungle

This is the classic San Diego butterfly experience. Each spring the San Diego Zoo Safari Park turns its Hidden Jungle aviary into Butterfly Jungle, a walk-through aviary of free-flying butterflies with guides and wildlife care specialists inside.

According to the Safari Park’s 2026 listing, the details were:

• Dates: daily, March 21 to April 12, 2026
• Hours: 10am to 4pm
• Cost: $18 per person ages 1 and up. This is a separate ticket that is not included with admission or membership. Infants under 1 need a free infant pass from the Butterfly Jungle booth.
• Length: about 20 minutes, and nectar for feeding is included
• Tickets: timed. If you arrive more than 15 minutes late you can’t get in, and the ticket is non-refundable.
• Strollers: not allowed inside (parking is outside). Only 5 carried infants are allowed in at a time for fire-code reasons.

2027 dates: not announced at the time of writing. The event has followed a late-March to mid-April pattern, so watch the Safari Park site from early 2027. Timed slots sell out on weekends and during spring break.

Butterfly Jungle is not a view of the wild migration, but it is the easiest way in San Diego to show kids butterflies at close range.

Zoro Garden, Balboa Park

Zoro Garden is a sunken stone grotto between the Fleet Science Center and the San Diego History Center. It was built as a nudist colony for the 1935 exposition and is now a butterfly garden. It is planted for the full butterfly life cycle, with milkweed and other host plants plus nectar flowers like lantana, verbena and blanket flower. Balboa Park lists monarchs, sulfurs, skippers and swallowtails among its visitors. It is open daily and free. Read more in our Zoro Garden guide, or combine it with the other Balboa Park gardens on the same walk.

San Diego Botanic Garden, Encinitas

If you searched “butterfly farms Encinitas,” this is the Encinitas garden to visit now. The San Diego Botanic Garden at 300 Quail Gardens Drive is open 9am to 5pm and closed Tuesdays. Walk-up entry ends at 4pm. Current admission is $20 adults, $18 seniors (60+), military and students, $12 for ages 3–17, and free under 3. It also opens on most holidays, but it is closed Thanksgiving and Christmas.

The garden has run volunteer-led butterfly walks on summer and fall Mondays in past years, with surveys tracking which species appear. Check its events calendar to see whether the walks are running this season. Note that some areas may close on select days during the winter Lightscape light show season.

What happened to the Encinitas butterfly farm?

The old page on this site ranked for “butterfly farms Encinitas,” and many people still search for it. Butterfly Farms was a nonprofit butterfly house and education center at 441 Saxony Road, Encinitas. It ran school programs about monarchs, including tagging and release with wildlife agencies.

As of November 2026, it appears to be closed:

• Its former website domain now redirects to a hosting “suspended” page.
• Third-party business listings mark the location closed.

No official closure announcement was found, so if you have a personal connection to it, contact the nonprofit directly. For visitors, the San Diego Botanic Garden (nearby on Quail Gardens Drive) and Butterfly Jungle in spring are the realistic replacements.

A note on milkweed (if you garden)

Many San Diegans plant milkweed to help monarchs. The Monarch Joint Venture advises caution on the coast. Non-native tropical milkweed stays green all winter. That can keep monarchs breeding when they should be resting, and winter breeders can carry far higher levels of the OE parasite. Their guidance is to plant milkweed only where it historically grew and more than a mile from an overwintering site. Otherwise, plant native nectar flowers, which help monarchs year-round.

Visiting etiquette

At overwintering groves and in gardens:

• Never touch or handle monarchs. California restricts handling to permitted research.
• Stay on paths and watch where you step, because monarchs rest on the ground on cool mornings.
• Don’t use bug spray in or near groves.
• Don’t release store-bought or captive-reared butterflies.
• Keep dogs leashed or at home, depending on park rules.

About the “NOVA monarch butterfly video”

A small number of people reach this topic looking for the PBS NOVA monarch documentary. Search PBS directly for current streaming options.

Who this suits

Families with young kids will get the most out of Butterfly Jungle in spring. Photographers and garden lovers should go to Zoro Garden and the Botanic Garden on a warm, sunny day. If you specifically want the famous sight of thousands of monarchs hanging in clusters from trees, plan a winter trip to the Central Coast between mid-November and December. San Diego is a good place for butterflies, but not for that.