El Niño Outlook · Winter 2026-27
Aletsch Arena El Niño rank & forecast
Aletsch Arena ranks #46 of 488 SnowSure resorts — Tier A, +12% in strong El Niño winters.
Tier A — Prime El Niño terrain: Historically snowed much more than normal in strong El Niño winters (≥ +8% vs this resort’s own 30-year average).
#46 of 488Tier A — Prime El Niño terrain
Strong-event signal: +12% vs this resort's 30-yr avg
In the three strongest El Niño winters on record ('97-98, '15-16, '23-24), Aletsch Arena averaged +12% versus its own 30-year snowfall baseline. The pattern has historically been a friend here. With a record-strength event forecast for winter 2026-27, Aletsch Arena sits on the favorable side of the ledger. Analog winters: '97-98 -10%, '15-16 +3%, '23-24 +44%. A pattern, not a promise.
'97-98 −10%'15-16 +3%'23-24 +44%
