Annual precipitation in Guinea-Bissau
Guinea-Bissau: Annual precipitation was 1,621 millimeters in 2025. ▼ Falling
Annual precipitation in Guinea-Bissau, 1940–2025
Source: Contains modified Copernicus Climate Change Service information (2026) – with major processing by Our World in Data. Measured in millimeters.
Analysis
In 2025, annual precipitation in Guinea-Bissau stood at 1,621 millimeters.
The figure is down 10.6% on the previous year and up 4.3% over ten years.
Over the whole period, annual precipitation in Guinea-Bissau peaked at 2,119 millimeters in 1958 and was at its lowest, 874.75 millimeters, in 1941.
Guinea-Bissau ranks 44th of 192 countries on this measure, in the top quarter.
The long-run direction has been consistently falling across the 86 years of available data.
Averages by decade
| Decade | Average | Lowest | Highest | Years |
|---|---|---|---|---|
| 1940s | 1,480 millimeters | 874.75 millimeters | 1,797 millimeters | 10 |
| 1950s | 1,804 millimeters | 1,492 millimeters | 2,119 millimeters | 10 |
| 1960s | 1,628 millimeters | 1,263 millimeters | 1,882 millimeters | 10 |
| 1970s | 1,544 millimeters | 1,075 millimeters | 1,714 millimeters | 10 |
| 1980s | 1,368 millimeters | 1,275 millimeters | 1,467 millimeters | 10 |
| 1990s | 1,328 millimeters | 1,124 millimeters | 1,487 millimeters | 10 |
| 2000s | 1,225 millimeters | 972.57 millimeters | 1,450 millimeters | 10 |
| 2010s | 1,363 millimeters | 1,117 millimeters | 1,645 millimeters | 10 |
| 2020s | 1,542 millimeters | 1,253 millimeters | 1,813 millimeters | 6 |
Countries ranked near Guinea-Bissau
More reference data data for Guinea-Bissau
- Spring temperature anomalies 0.0461 °C (2026)
- Summer temperature anomalies 0.1951 °C (2026)
- Temperature anomalies by month 0.1558 °C (2026)
- Universal right to vote in practice 0 (2025)
- Autumn temperature anomalies -0.0727 °C (2025)
- Winter temperature anomalies -0.6203 °C (2025)
- Consumer price index 142.94 2010 = 100 (2025)
- Universal right to vote 2 (2025)
- Competitive elections 0 (2025)
- Men's universal right to vote 1 (2025)
Frequently asked questions
- What is annual precipitation in Guinea-Bissau?
- Annual precipitation in Guinea-Bissau was 1,621 millimeters in 2025, according to Contains modified Copernicus Climate Change Service information (2026) – with major processing by Our World in Data.
- What is the highest annual precipitation recorded in Guinea-Bissau?
- The highest recorded value was 2,119 millimeters in 1958.
- What is the lowest annual precipitation recorded in Guinea-Bissau?
- The lowest recorded value was 874.75 millimeters in 1941.
- How does Guinea-Bissau rank for annual precipitation?
- Guinea-Bissau ranks 44th out of 192 countries with data for 2025.
- Is annual precipitation rising or falling in Guinea-Bissau?
- Over the last ten years it is up 4.3%. The long-run trend across the full record is falling.
- Where does this Guinea-Bissau data come from?
- The figures come from Contains modified Copernicus Climate Change Service information (2026) – with major processing by Our World in Data, published as part of Annual precipitation. Statizoid updates them automatically from the source API.
Download this data
CSV · JSON — 86 observations, free to reuse under CC BY 4.0 (Our World in Data).
About this data
Total annual precipitation—rain and snow—calculated as the sum of daily averages, reported as the depth of water falling to Earth's surface, excluding fog and dew.