Climate zones in Guinea, 1991 to 2020
Share of Guinea's classified land in each Köppen-Geiger zone in 1991 to 2020. Zones under 0.05% are left out. The 290,214 map cells used cover 100% of the country's outline (about 245,015 km²).
By major group: A (tropical) 100%.
Aw, tropical savannah, is the main climate of Guinea, covering 87% of its classified land in 1991 to 2020, with Am (tropical monsoon) next at 14%. In plain terms, tropical savannah means hot all year, with a clear dry season. Under the middle-of-the-road scenario (SSP2-4.5), 3.6% of its land is projected to be in a different zone by 2071 to 2099, with the biggest gain going to Aw (tropical savannah).
How Guinea's zones have changed and may change
Each row compares a map with 1991 to 2020. "Share in a different zone" is the share of the country's area whose class is different from 1991 to 2020. Future rows are model projections under an emissions scenario, not forecasts.
| Map | Share in a different zone | Different major group | Biggest gain | Biggest loss |
|---|---|---|---|---|
| 1901 to 1930 (past) | 22% | 0% | Aw +22 percentage points | Am -22 percentage points |
| 2071 to 2099, SSP1-2.6 (low emissions) | 2% | 0% | Aw +1 percentage point | Am -1 percentage point |
| 2071 to 2099, SSP2-4.5 (middle of the road) | 3.6% | 0% | Aw +3.5 percentage points | Am -3.5 percentage points |
| 2071 to 2099, SSP5-8.5 (high emissions) | 6% | 0.2% | Aw +5.7 percentage points | Am -5.8 percentage points |
For the past row, the comparison runs the other way: the 1901 to 1930 map against 1991 to 2020.
Zone shares by map
| Zone | 1901 to 1930 | 1991 to 2020 | SSP1-2.6 (2071 to 2099) | SSP2-4.5 (2071 to 2099) | SSP5-8.5 (2071 to 2099) |
|---|---|---|---|---|---|
| Aw Tropical savannah | 64% | 87% | 88% | 90% | 92% |
| Am Tropical monsoon | 36% | 14% | 13% | 10% | 7.7% |
| BSh Hot semi-arid (steppe) | - | - | - | - | 0.2% |
Percentages are of the country's classified land in each map. A dash means under 0.05%.
Cities in Guinea and their climate zones
| City | 1991 to 2020 | 2071 to 2099, SSP2-4.5 |
|---|---|---|
| Conakry | Am Tropical monsoon | Am Tropical monsoon |
| Camayenne | Am Tropical monsoon | Am Tropical monsoon |
Zones found in Guinea
Data: Beck et al. (2023), CC BY 4.0; country outlines from Natural Earth. In 1901 to 1930 the most common zone was Aw. See data sources and licences.
