French Polynesia
Score moved 8 → 7 (severe impact → high impact). “A super El Niño is building — and French Polynesia's reefs, rains and voyaging plans are already feeling it”
A 'super' El Niño appears to be emerging, with articles warning of intensified coral bleaching and shifting climate patterns across the Pacific. For French Polynesia, the measured dry-season window (9 July–6 October 2026) ran +82% wetter than the 1991–2020 normal and +0.5°C warmer, consistent with the canonical wet El Niño signal even though absolute dry-season totals are small. The Polynesian Voyaging Society has already added a year to the Moananuiākea Voyage in response to the updated climate outlook, underscoring how the strengthening event is reshaping planning across the region.
152.2 mm vs 83.6 mm normal
Reanalysis for 9 July–6 October 2026 shows rainfall at +82% versus the 1991–2020 normal, though this falls in the climatological dry season when totals are normally under 20 mm, so the meaningful signal is the outlook for the coming wet season.
26.16°C mean vs 25.71°C normal
Mean temperature for the same window ran +0.5°C above normal, consistent with the warming background that articles say is amplifying El Niño's coral-reef impacts.
El Niño typically makes French Polynesia wetter. Observed rainfall is running +82% — in line with the canonical response.
NASA POWER (MERRA-2) reanalysis, 9 Jul 2026 – 6 Oct 2026, sampled at the country centroid (-15.0°, -140.0°). Normals are 1991–2020. How this is computed
When it matters
Agricultural calendar for French Polynesia and where the El Niño impact window falls
Last 12 months vs normal
Observed monthly rainfall against the 1991–2020 climatology
Sector by sector
Peak El Niño impact is expected in the November–March wet season, when above-normal rainfall could boost some crops but also raise waterlogging, fungal disease and pest pressure.
Dry-season rainfall already ran well above normal, and the coming wet season is likely to bring further surplus, easing drought risk but increasing flood and runoff concerns.
Warmer, wetter conditions are likely to expand mosquito breeding and raise risks of waterborne and vector-borne disease, alongside heat stress on vulnerable populations.
Above-normal rainfall may support hydropower generation on high islands, while warmer conditions could lift cooling demand and electricity load.
Warming seas and coral stress are expected to shift tuna and reef-fish distributions, with bleaching articles warning of knock-on effects for lagoon fisheries.
What happened last time
Past El Niño episodes and how French Polynesia responded. See the full ENSO timeline →
2023-24
A strong El Niño that intensified global coral bleaching and prompted regional climate adaptation planning, including adjustments to Polynesian voyaging schedules.
unsourced background2015-16
A powerful El Niño linked to widespread coral mortality in Polynesian reefs and disruption to pearl-farming and lagoon ecosystems.
unsourced background1997-98
One of the strongest El Niño events on record, associated with severe coral bleaching across French Polynesia and major shifts in regional rainfall and fisheries.
unsourced backgroundLatest coverage
RSSSuper El Niño Builds as French Polynesia Braces for a Wetter, Warmer Season
A 'super' El Niño appears to be emerging, with articles warning of intensified coral bleaching and shifting climate patterns across the Pacific. For French Polynesia, the measured dry-season window (9
A ‘Super El Niño’ may be on the way. What does that mean?
Super-boosting coral reefs as El Niño looms
Corals show how El Nino is intensifying as the planet warms
Nearby
Other countries in Polynesia