Caribbean Pop. 180k Capital: Castries 5 articles · good coverage

Saint Lucia

High impact · 7/10 Typically drier in El Niño years
What changed since 9 Oct 2026

Narrative updated. “Taps are running dry and the rains are late — El Niño's grip on Saint Lucia is tightening”

Saint Lucia is in the grip of a strong El Niño, with reanalysis showing rainfall 66% below normal for 9 July–6 October 2026 and mean temperatures 0.8°C above average. NEMO warned in July of an impending dry season, and by late August St. Lucia Times reported a hot spell that offered a glimpse of El Niño's reach. The Guardian's June reporting on water rationing — 'people shouldn't expect there will be water in their taps every day' — shows the strain is already being felt across households and sectors.

Sources: [1][2][3] · AI-summarised from 5 articles
RAINFALL · LAST 90 DAYS
-66%

194.6 mm vs 563.6 mm normal

Reanalysis shows rainfall for 9 July–6 October 2026 at 66% below the 1991–2020 normal, consistent with the canonical El Niño drying signal and with NEMO's July warning of an impending dry season.

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TEMPERATURE · LAST 90 DAYS
+0.8°C

28.94°C mean vs 28.19°C normal

Mean temperature for the same window ran 0.8°C above normal, matching the hot spell described by St. Lucia Times as a glimpse of El Niño's grip.

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SIGNAL CHECK
Signal showing

El Niño typically makes Saint Lucia drier. Observed rainfall is running -66% — in line with the canonical response.

NASA POWER (MERRA-2) reanalysis, 9 Jul 2026 – 6 Oct 2026, sampled at the country centroid (13.9°, -61.0°). Normals are 1991–2020. How this is computed

When it matters

Agricultural calendar for Saint Lucia and where the El Niño impact window falls

JFMAMJJASOND
Peak El Niño impact
Wet season
Dry season
Harvest
Peak El Niño impactRainy seasonDry seasonHarvest Now inside the peak-impact window. Drought, water rationing; fewer but not zero hurricanes.

Last 12 months vs normal

Observed monthly rainfall against the 1991–2020 climatology

050100150200Nov2025: 44.3 mm (normal 203 mm)NovDec2025: 31.4 mm (normal 95.7 mm)DecJan2026: 24.5 mm (normal 75.9 mm)JanFeb2026: 8.1 mm (normal 59 mm)FebMar2026: 26.4 mm (normal 86.8 mm)MarApr2026: 29.6 mm (normal 106 mm)AprMay2026: 24.1 mm (normal 115.3 mm)MayJun2026: 35.4 mm (normal 146.8 mm)JunJul2026: 54.9 mm (normal 161 mm)JulAug2026: 57.9 mm (normal 191.8 mm)AugSep2026: 86.1 mm (normal 205.6 mm)Sep
Observed monthly rain (mm) 1991–2020 normal

Sector by sector

Agriculture

With the wet season suppressed and the November–January harvest approaching, planting is expected to be delayed by about a month and yields of rain-fed crops are likely to fall.

Water & flooding

Reservoirs and intakes are under severe stress, with The Guardian reporting that households should not expect daily tap water as the dry season deepens.

Health

Heat stress, dehydration and waterborne disease risks are expected to rise as temperatures run 0.8°C above normal and water quality deteriorates under rationing.

Energy

Hydropower generation is likely to decline with reduced streamflow, raising reliance on imported fuel for electricity and increasing costs.

Fisheries

Warmer coastal waters and shifting currents associated with El Niño are expected to displace fish stocks, pressuring nearshore catches and aquaculture as highlighted by FAO.

What happened last time

Past El Niño episodes and how Saint Lucia responded. See the full ENSO timeline →

2023-24

A strong El Niño amplified regional drought and heat, with Saint Lucia among Caribbean states reporting below-normal rainfall and stress on water supplies.

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2015-16

A powerful El Niño contributed to one of the driest spells in Saint Lucia's recent history, forcing water restrictions and reducing agricultural output across the island.

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1997-98

One of the strongest El Niño events on record brought severe drought and water rationing to the eastern Caribbean, with Saint Lucia experiencing significant crop losses and reservoir depletion.

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Anomalies, signal, sectors and score side by side — on one shareable URL.