The verdict

Best places to dive with southern elephant seals

Mirounga leonina

The most reliable place to dive with southern elephant seals is Peninsula Valdes, from October to November.

Illustration of a southern elephant seal
How many of the top 4 destinations are at their peak for southern elephant seals each month
JanFebMarAprMayJunJulAugSepOctNovDec
January: 1 of 4 at peakFebruary: 2 of 4 at peakMarch: 1 of 4 at peakApril: 0 of 4 at peakMay: 0 of 4 at peakJune: 0 of 4 at peakJuly: 3 of 4 at peakAugust: 0 of 4 at peakSeptember: 0 of 4 at peakOctober: 1 of 4 at peakNovember: 1 of 4 at peakDecember: 0 of 4 at peak
Most sites at peak Some at peak Possible only Not common

Based on 638 OBIS records of southern elephant seal (Mirounga leonina) within 60 km of 4 dive destinations.

Top destinations to dive with southern elephant seals

4 on record

Ranked on how reliably they turn up, then on how long the record runs.

Destinations to dive with southern elephant seals, most reliable first
#DestinationCountry / areaSeasonReliabilityEvidenceDive type
1Peninsula ValdesArgentinaOct–NovNear-guaranteed23 of 28 yearsSnorkel
2Cape Town / False BaySouth AfricaFeb–Mar, JulHit-or-miss9 of 32 yearsDay boat, Shore
3GansbaaiSouth AfricaFeb, JulHit-or-miss5 of 32 yearsCage
4Puerto Vallarta / BanderasMexico PacificJan, JulHit-or-miss2 of 32 yearsfew recordsDay boat

When to dive with southern elephant seals

Hover a month to isolate it
Peak and possible months for southern elephant seals at each destination
JanFebMarAprMayJunJulAugSepOctNovDec
Peninsula ValdesJan: PossibleFeb: PossibleMar: Not commonApr: Not commonMay: Not commonJun: Not commonJul: PossibleAug: Not commonSep: Not commonOct: Peak seasonNov: Peak seasonDec: Possible
Cape Town / False BayJan: PossibleFeb: Peak seasonMar: Peak seasonApr: Not commonMay: Not commonJun: Not commonJul: Peak seasonAug: PossibleSep: Not commonOct: Not commonNov: PossibleDec: Possible
GansbaaiJan: Not commonFeb: Peak seasonMar: Not commonApr: Not commonMay: Not commonJun: Not commonJul: Peak seasonAug: Not commonSep: PossibleOct: PossibleNov: PossibleDec: Possible
Puerto Vallarta / BanderasJan: Peak seasonFeb: PossibleMar: Not commonApr: Not commonMay: Not commonJun: Not commonJul: Peak seasonAug: Not commonSep: Not commonOct: Not commonNov: Not commonDec: Not common
Peak season Possible Not common

Southern elephant seal month by month

January
The one peak month at Puerto Vallarta / Banderas.
February
Season starts at Cape Town / False Bay. Also good at Gansbaai.
March
Last peak month at Cape Town / False Bay.
Apr–Jun
Not a month for southern elephant seals.
July
The one peak month at Cape Town / False Bay. Also good at Gansbaai and Puerto Vallarta / Banderas.
August
Off-peak everywhere. Your best chance is Cape Town / False Bay.
September
Off-peak everywhere. Your best chance is Gansbaai.
October
Season starts at Peninsula Valdes.
November
Last peak month at Peninsula Valdes.
December
Off-peak everywhere. Your best chance is Peninsula Valdes.

What to expect in the water

Water temperature and the suit to pack at the top sites, in the months southern elephant seals are there.

Water temperature and wetsuit at the top sites for southern elephant seals in season
DestinationSeasonWaterSuit
Peninsula ValdesOct–Nov1213 °CDrysuit
Cape Town / False BayFeb–Mar, Jul1519 °C7 mm semi-dry
GansbaaiFeb, Jul1520 °C7 mm semi-dry
Puerto Vallarta / BanderasJan, Jul2530 °C5 mm full suit

What else you'll see with southern elephant seals

Animals at their peak in the same places and months.

Diving with southern elephant seals: common questions

Where is the best place to dive with southern elephant seals?
The most reliable place to dive with southern elephant seals is Peninsula Valdes, from October to November.
When is the best time to dive with southern elephant seals?
July, when 3 of the 4 best-evidenced destinations are at their peak. It varies by place: Peninsula Valdes peaks October to November; Cape Town / False Bay peaks February to March, July; Gansbaai peaks February, July.
What wetsuit do you need to dive with southern elephant seals?
At Peninsula Valdes from October to November, the water is 12 °C to 13 °C, so bring a drysuit.
How many places can you dive with southern elephant seals?
besttimetodive.com has southern elephant seals on record at 4 of the destinations it scores. Not an exhaustive list — these are the sites we hold verified data for.