Is the coral bleached in the Maldives right now?
20 years of NOAA data over the reefs we score: only 5 carried real heat stress, each peaking May–June. What that means for when you go.
It’s the question that quietly sits behind every Maldives booking: will the coral actually be there when I arrive, or will it be bleached white? Most travel articles answer with a vague “it depends on the year.” We can do better than that, because we measure it.
What bleaching actually is — briefly
Coral bleaching isn’t the coral dying, at least not immediately. When the water stays too warm for too long, coral expels the algae that give it colour and most of its food, and turns white. If the heat passes, it can recover. If it lingers, it starts to die. So “is it bleached” is really a question about accumulated heat, and heat you can measure from space.
What 20 years of measurement shows
We took NOAA’s satellite heat record and re-read it, month by month, over the 206 five-kilometre ocean cells that our scored reefs actually sit in — not the open ocean, the reefs. Across 20 measured years, the finding is clearer than the travel calendars suggest:
- Only 5 of those 20 years carried heat stress worth the name — 2010, 2015, 2016, 2024 and 2025. The other fifteen sat at essentially zero all season.
- Every one of those five peaked in May or June. Not scattered through the year — concentrated in the pre-monsoon warm-up.
- The worst on record was 2016. The others were milder.
- March, August and September have never once registered a stressed reef in the whole record.
So the honest answer to “will the coral be bleached” is: in most years, no. And in the years it happens, it happens in a predictable window.
What this means for when you go
Two useful takeaways, neither of which a brochure will give you:
A bleaching event, if it comes, comes in late spring. If you’re anxious about it, the back half of the year — roughly August onward — has never shown stress in our record. That’s not a guarantee about the future, but it’s twenty years of past behaviour, which is more than anyone else is offering you.
Bleached doesn’t mean barren. This is the part worth holding onto: a reef can be heat-stressed and still be full of fish, and it can recover within a season or two. Heat stress is a statement about the reef’s health, not about whether your holiday is ruined. We fold it into every reef’s score as a penalty — recent heat pulls a score down — but we say plainly that no reef in the index has been surveyed in the water. The satellite tells us about the heat, not the coral you’ll personally see.
See the full picture
We publish the whole month-by-month heat-stress chart, built from that NOAA record, alongside the monsoon and the wildlife seasons — so you can line up “when’s the coral safest” against “when can I see mantas” and decide for yourself.
See heat stress by month, and everything else about when to go →
Or check a specific reef: browse by atoll, open any reef page, and the heat penalty applied to its score — and the peak heat it’s seen since the imagery was taken — is shown with the evidence behind it.