Climate zones in Burundi, 1991 to 2020
Share of Burundi's classified land in each Köppen-Geiger zone in 1991 to 2020. Zones under 0.05% are left out. The 31,693 map cells used cover 100% of the country's outline (about 27,165 km²).
By major group: A (tropical) 81%, C (temperate) 19%.
Aw, tropical savannah, is the main climate of Burundi, covering 81% of its classified land in 1991 to 2020, with Csb (warm-summer mediterranean) next at 12%. In plain terms, tropical savannah means hot all year, with a clear dry season. Under the middle-of-the-road scenario (SSP2-4.5), 17% 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 Burundi'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) | 24% | 22% | Aw +21.6 percentage points | Csb -18.1 percentage points |
| 2071 to 2099, SSP1-2.6 (low emissions) | 13% | 7.9% | Aw +7.9 percentage points | Cwb -6.7 percentage points |
| 2071 to 2099, SSP2-4.5 (middle of the road) | 17% | 14% | Aw +13.7 percentage points | Csb -7 percentage points |
| 2071 to 2099, SSP5-8.5 (high emissions) | 19% | 18% | Aw +18.1 percentage points | Csb -11.4 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 | 60% | 81% | 89% | 95% | 99% |
| Csb Warm-summer Mediterranean | 30% | 12% | 11% | 5.2% | 0.8% |
| Cwb Subtropical highland (dry winter) | 10% | 6.7% | - | - | - |
Percentages are of the country's classified land in each map. A dash means under 0.05%.
Cities in Burundi and their climate zones
| City | 1991 to 2020 | 2071 to 2099, SSP2-4.5 |
|---|---|---|
| Bujumbura | Aw Tropical savannah | Aw Tropical savannah |
Zones found in Burundi
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.
