Western Africa Pop. 35.1M Capital: Accra 5 articles · good coverage

Ghana

Moderate impact · 4/10 Weak signal in El Niño years
What changed since 9 Oct 2026

Score moved 3 → 4 (minimal impact → moderate impact). “Cocoa forecasts cut 13–16% as a super El Niño meets black pod and swollen shoot”

Ghana's 2026/27 cocoa crop is forecast to fall 13–16% as El Niño-driven heat and humidity worsen black pod and swollen shoot disease, with Bloomberg and The Africa Report both warning that the sector's fragile recovery is at risk. The measured climate signal is milder than the headlines suggest: rainfall for 9 July–6 October 2026 ran about 29% above the 1991–2020 normal and temperatures about 0.9°C above normal, a weak canonical El Niño signal for Ghana rather than the drought that hit West Africa in 2015-16 and 2023-24. The October–November harvest will be the decisive test, while Reuters and Fitch Solutions flag that tropical commodity exporters across the region face the same exposure.

Sources: [1][2][3] · AI-summarised from 5 articles
RAINFALL · LAST 90 DAYS
+29%

647.6 mm vs 502.6 mm normal

Reanalysis shows rainfall for 9 July–6 October 2026 running about 29% above the 1991–2020 normal, though this window falls in Ghana's climatological dry season when totals are normally under 20 mm, so the meaningful signal is the outlook for the coming rains rather than a percentage anomaly.

TEMPERATURE · LAST 90 DAYS
+0.9°C

26.19°C mean vs 25.25°C normal

Mean temperatures over the same window ran about 0.9°C above normal, consistent with the background warming that amplifies heat stress on cocoa and other tree crops even in a weak El Niño year.

SIGNAL CHECK
On schedule

The rainy season (June–September), planting (June–July) and lean season (June–August) have broadly followed the normal calendar, with the October–November harvest now the key test of whether El Niño-driven heat and disease pressure cut cocoa pod fill and yields.

NASA POWER (MERRA-2) reanalysis, 9 Jul 2026 – 6 Oct 2026, sampled at the country centroid (8.0°, -2.0°). Normals are 1991–2020. How this is computed

When it matters

Agricultural calendar for Ghana and where the El Niño impact window falls

JFMAMJJASOND
Rainy season
Planting
Harvest
Lean season
Rainy seasonPlantingHarvestLean season

Last 12 months vs normal

Observed monthly rainfall against the 1991–2020 climatology

0100200300400500600Nov2025: 32.7 mm (normal 28 mm)NovDec2025: 35.7 mm (normal 6 mm)DecJan2026: 2.6 mm (normal 6.8 mm)JanFeb2026: 35.6 mm (normal 21.8 mm)FebMar2026: 77.7 mm (normal 67.4 mm)MarApr2026: 102.2 mm (normal 114.7 mm)AprMay2026: 135.4 mm (normal 142.6 mm)MayJun2026: 631.3 mm (normal 157.2 mm)JunJul2026: 119.1 mm (normal 155.2 mm)JulAug2026: 285.8 mm (normal 148.6 mm)AugSep2026: 252.9 mm (normal 206.8 mm)Sep
Observed monthly rain (mm) 1991–2020 normal

Sector by sector

Agriculture

Cocoa output is projected to fall 13–16% on El Niño-linked heat, humidity and disease pressure, with knock-on losses for maize, cassava and other rain-fed staples if the coming rains underperform.

Water & flooding

Above-normal rainfall in the July–October window has eased reservoir and soil-moisture deficits, but a weak El Niño signal leaves the Volta system vulnerable to a dry spell during the 2027 dry season.

Health

Heat stress, higher humidity favouring malaria and cholera transmission, and lean-season nutrition gaps (June–August) are the main El Niño-linked health pressures this cycle.

Energy

Hydropower output at Akosombo depends on Volta inflows; the current wetter-than-normal window supports generation, but any El Niño-driven shortfall in the 2027 rains would revive load-shedding risk.

Fisheries

Warming coastal waters and altered upwelling can push small pelagics (sardinella, anchovy) offshore, raising costs for Ghana's artisanal canoe fleet and tightening local fish supply.

What happened last time

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

2023-24

El Niño-linked heat and erratic rains contributed to a poor cocoa harvest and record world prices, with Ghana losing a substantial share of its expected crop to disease and pod failure.

unsourced background

2015-16

A strong El Niño coincided with one of Ghana's driest seasons on record, cutting cocoa output and forcing load-shedding as Volta reservoir levels fell; the event is the benchmark for El Niño damage to the sector.

unsourced background

1997-98

The strongest El Niño of the twentieth century brought drought and wildfire risk to West Africa and depressed Ghanaian cocoa and food crop yields, though documented national figures are sparse.

unsourced background

Latest coverage

RSS

Nearby

Neighbouring countries

Compare Ghana with another country

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