Western Sahara
Narrative updated. “Strong El Niño, weak local signal — Western Sahara's coming rains hinge on the winter window”
Western Sahara sits on the weak edge of a powerful El Niño, with the September 2026 Global Weather Hazards Summary and Berkeley Earth's August update both pointing to a strong Pacific warm event (ONI +2.16) whose rainfall influence barely reaches the northwest African coast. Measured conditions for 9 July–6 October 2026 show rainfall about 20% below the 1991–2020 normal during the climatological dry season, while mean temperatures ran +2.6°C above normal. A Moroccan study warns that a strong 2026-27 El Niño could shift rainfall across the wider Maghreb, so the coming winter rains — not the dry-season numbers — will determine the real impact here.
17.8 mm vs 22.1 mm normal
Measured rainfall for 9 July–6 October 2026 ran about 20% below the 1991–2020 normal, though this window falls in Western Sahara's climatological dry season (normally under 20 mm), so the figure mainly frames the outlook for the coming winter rains rather than a meaningful deficit.
News source32.5°C mean vs 29.92°C normal
Mean temperatures for the same window were +2.6°C above normal, consistent with the strong El Niño state (ONI +2.16) and with the global August 2026 warmth reported by Berkeley Earth.
News sourcePastoral and oasis cropping calendars are expected to stay broadly on schedule, but the weak canonical El Niño signal for Western Sahara means the coming rains are likely to arrive near normal timing with only modest moisture stress for rangeland regeneration.
NASA POWER (MERRA-2) reanalysis, 9 Jul 2026 – 6 Oct 2026, sampled at the country centroid (24.5°, -13.0°). Normals are 1991–2020. How this is computed
Last 12 months vs normal
Observed monthly rainfall against the 1991–2020 climatology
Sector by sector
Pastoral rangelands and oasis date and barley plots are expected to hold near-normal growing calendars, though a 20% dry-season rainfall shortfall and +2.6°C heat leave soils and livestock under modest moisture stress.
Oasis aquifers and coastal wells should recharge only marginally if the coming winter rains stay near normal, keeping pressure on already limited groundwater reserves.
Sustained heat anomalies raise heat-stress and dehydration risks for nomadic communities, with dust transport and dry conditions likely to aggravate respiratory illness.
Above-normal temperatures (+2.6°C) are expected to lift cooling demand and strain isolated grid capacity, while wind and solar potential along the coast remains largely unaffected.
The strong El Niño is likely to nudge Canary Current upwelling and sardine and cephalopod distribution, with possible shifts in catch composition off Dakhla and Laayoune.
What happened last time
Past El Niño episodes and how Western Sahara responded. See the full ENSO timeline →
2023-24
Moderate-to-strong El Niño conditions again produced a muted local rainfall response, consistent with Western Sahara's weak canonical ENSO signal.
unsourced background2015-16
A strong El Niño coincided with warm, dry conditions across the western Sahara margin, stressing pastoral water points and delaying rangeland regeneration.
unsourced background1997-98
One of the strongest El Niño events on record brought only weak rainfall anomalies to Western Sahara, with the northwest African coast largely missing the global teleconnection.
unsourced backgroundLatest coverage
RSSGlobal Weather Hazards Summary, September 24, 2026 – September 30, 2026
Don Paul: Region to see unsettled weather through midweek, near record El Nino likely
Strong El Niño, Weak Local Signal: Western Sahara Braces for a Near-Normal Rainy Season
Western Sahara sits on the weak edge of a powerful El Niño, with the September 2026 Global Weather Hazards Summary and Berkeley Earth's August update both pointing to a strong Pacific warm event (ONI
Morocco’s Rainfall May Be Affected by Strong El Niño in 2026-2027, Study Says
Nearby
Neighbouring countries