Niue
Narrative updated. “El Niño is confirmed across the Pacific, but Niue's dry season has run cooler and drier than normal — what happens next depends on the coming rains”
SPREP and regional monitoring partners have confirmed El Niño conditions and are urging Pacific countries to coordinate their response, with Niue among the small island states in scope. The September regional update and subsequent Pacific statements flag growing climate threats, while WHO's One Health initiative is linking health, environment and climate work across the region. For Niue, the measured dry season has been 28% drier and 1.0°C cooler than the 1991–2020 normal, so the decisive question is whether the November–April wet season arrives on time and delivers enough rain for agriculture and household water storage.
146.5 mm vs 202.3 mm normal
Measured rainfall for 9 July–6 October 2026 ran 28% below the 1991–2020 normal, though this window falls in Niue's climatological dry season when totals are normally under 20 mm, so the meaningful signal is the outlook for the coming wet season rather than the percentage itself.
News source23.3°C mean vs 24.34°C normal
Mean temperature for the same window came in 1.0°C below normal, a cooler-than-average dry season that sits oddly against the strong El Niño signal described in the regional monitoring updates.
News sourceThe dry-season agricultural calendar (May–October) is proceeding on schedule, but the onset and reliability of the November–April wet season rains will determine planting success for taro, cassava and other staple crops.
NASA POWER (MERRA-2) reanalysis, 9 Jul 2026 – 6 Oct 2026, sampled at the country centroid (-19.0°, -169.9°). Normals are 1991–2020. How this is computed
When it matters
Agricultural calendar for Niue and where the El Niño impact window falls
Last 12 months vs normal
Observed monthly rainfall against the 1991–2020 climatology
Sector by sector
Dry-season cropping is on schedule, but a delayed or weak wet season would threaten taro, cassava and other staple plantings that depend on November–April rains.
Below-normal dry-season rainfall has likely drawn down household rainwater tanks, making the timing of the wet season critical for replenishment on an island with limited groundwater.
WHO's One Health approach highlights heightened risks of waterborne and vector-borne disease, plus nutrition and heat stress concerns, as El Niño conditions evolve.
Niue's heavy reliance on diesel generation means any drought-driven water or fuel constraint, or storm damage to infrastructure, would raise electricity costs and supply risk.
El Niño shifts tuna and nearshore fish distributions across the Pacific, which could alter catch rates and nearshore reef fishing conditions for Niue's small fleet.
What happened last time
Past El Niño episodes and how Niue responded. See the full ENSO timeline →
2023-24
A strong El Niño event again raised drought and water-security concerns across the Pacific, prompting regional monitoring and preparedness advisories of the kind now being issued for Niue.
unsourced background2015-16
A powerful El Niño contributed to drought conditions across the southwest Pacific, stressing rainwater catchments and subsistence agriculture on low-lying atolls and raised islands including Niue.
unsourced background1997-98
One of the strongest El Niño events on record brought severe drought and water shortages to many small Pacific island states, with Niue among those relying on emergency water deliveries and tank top-ups.
unsourced backgroundLatest coverage
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