Annual precipitation in Guinea-Bissau
Guinea-Bissau: Annual precipitation was 1,621 millimeters in 2025. ▼ Falling
Latest (2025)
1,621 millimeters
Change on year
down 10.6%
World rank
44th
of 192 countries
All-time high
2,119 millimeters
in 1958
All-time low
874.75 millimeters
in 1941
Years of data
86
1940–2025
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.
Annual precipitation in Guinea-Bissau, year by year
| Year | millimeters | Change |
|---|---|---|
| 1940 | 1,314 millimeters | — |
| 1941 | 874.75 millimeters | -33.5% |
| 1942 | 1,591 millimeters | +81.9% |
| 1943 | 1,797 millimeters | +13.0% |
| 1944 | 1,541 millimeters | -14.2% |
| 1945 | 1,426 millimeters | -7.5% |
| 1946 | 1,470 millimeters | +3.1% |
| 1947 | 1,661 millimeters | +12.9% |
| 1948 | 1,646 millimeters | -0.9% |
| 1949 | 1,481 millimeters | -10.0% |
| 1950 | 1,779 millimeters | +20.0% |
| 1951 | 1,825 millimeters | +2.6% |
| 1952 | 1,753 millimeters | -3.9% |
| 1953 | 1,669 millimeters | -4.8% |
| 1954 | 1,940 millimeters | +16.2% |
| 1955 | 1,865 millimeters | -3.9% |
| 1956 | 1,788 millimeters | -4.2% |
| 1957 | 1,806 millimeters | +1.0% |
| 1958 | 2,119 millimeters | +17.4% |
| 1959 | 1,492 millimeters | -29.6% |
| 1960 | 1,331 millimeters | -10.8% |
| 1961 | 1,731 millimeters | +30.0% |
| 1962 | 1,619 millimeters | -6.5% |
| 1963 | 1,669 millimeters | +3.1% |
| 1964 | 1,709 millimeters | +2.4% |
| 1965 | 1,585 millimeters | -7.3% |
| 1966 | 1,660 millimeters | +4.8% |
| 1967 | 1,882 millimeters | +13.4% |
| 1968 | 1,263 millimeters | -32.9% |
| 1969 | 1,829 millimeters | +44.8% |
| 1970 | 1,451 millimeters | -20.7% |
| 1971 | 1,714 millimeters | +18.1% |
| 1972 | 1,682 millimeters | -1.9% |
| 1973 | 1,489 millimeters | -11.5% |
| 1974 | 1,581 millimeters | +6.2% |
| 1975 | 1,605 millimeters | +1.5% |
| 1976 | 1,578 millimeters | -1.6% |
| 1977 | 1,075 millimeters | -31.9% |
| 1978 | 1,605 millimeters | +49.3% |
| 1979 | 1,666 millimeters | +3.8% |
| 1980 | 1,275 millimeters | -23.5% |
| 1981 | 1,423 millimeters | +11.6% |
| 1982 | 1,367 millimeters | -3.9% |
| 1983 | 1,319 millimeters | -3.5% |
| 1984 | 1,285 millimeters | -2.6% |
| 1985 | 1,354 millimeters | +5.3% |
| 1986 | 1,463 millimeters | +8.1% |
| 1987 | 1,467 millimeters | +0.3% |
| 1988 | 1,345 millimeters | -8.3% |
| 1989 | 1,380 millimeters | +2.6% |
| 1990 | 1,311 millimeters | -5.0% |
| 1991 | 1,392 millimeters | +6.2% |
| 1992 | 1,294 millimeters | -7.0% |
| 1993 | 1,355 millimeters | +4.7% |
| 1994 | 1,422 millimeters | +4.9% |
| 1995 | 1,339 millimeters | -5.8% |
| 1996 | 1,316 millimeters | -1.7% |
| 1997 | 1,238 millimeters | -5.9% |
| 1998 | 1,124 millimeters | -9.3% |
| 1999 | 1,487 millimeters | +32.3% |
| 2000 | 1,351 millimeters | -9.1% |
| 2001 | 1,332 millimeters | -1.5% |
| 2002 | 972.57 millimeters | -27.0% |
| 2003 | 1,450 millimeters | +49.1% |
| 2004 | 1,155 millimeters | -20.4% |
| 2005 | 1,161 millimeters | +0.5% |
| 2006 | 1,075 millimeters | -7.4% |
| 2007 | 1,076 millimeters | +0.1% |
| 2008 | 1,408 millimeters | +30.9% |
| 2009 | 1,268 millimeters | -10.0% |
| 2010 | 1,366 millimeters | +7.7% |
| 2011 | 1,150 millimeters | -15.8% |
| 2012 | 1,437 millimeters | +25.0% |
| 2013 | 1,341 millimeters | -6.7% |
| 2014 | 1,117 millimeters | -16.7% |
| 2015 | 1,554 millimeters | +39.1% |
| 2016 | 1,473 millimeters | -5.2% |
| 2017 | 1,282 millimeters | -13.0% |
| 2018 | 1,645 millimeters | +28.4% |
| 2019 | 1,268 millimeters | -23.0% |
| 2020 | 1,779 millimeters | +40.4% |
| 2021 | 1,274 millimeters | -28.4% |
| 2022 | 1,513 millimeters | +18.7% |
| 2023 | 1,253 millimeters | -17.2% |
| 2024 | 1,813 millimeters | +44.7% |
| 2025 | 1,621 millimeters | -10.6% |
Guinea-Bissau compared with similar countries
- Guinea-Bissau's 1,621 millimeters is above the median for low income countries, which is 845.66 millimeters, 1.9× the median. (25 countries reporting)
- Guinea-Bissau's 1,621 millimeters is above the median for Sub-Saharan Africa, which is 970.56 millimeters, 1.7× the median. (48 countries reporting)
Biggest year-on-year movements
Years where Annual precipitation in Guinea-Bissau changed far more than this series normally does. A large move can be a real event or a change in how the figure was measured — the source note below says who published it.
| Year | Change | From | To |
|---|---|---|---|
| 1942 | +81.9% | 874.75 millimeters | 1,591 millimeters |
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 climate change data for Guinea-Bissau
- Nutrient nitrogen N (total) — Synthetic fertilizers (Agricultural) 2.69 million kg (2023)
- Emissions from livestock — Emissions (CO2eq) 1,460 kt (2050)
- Emissions from livestock — Emissions (CO2eq) from N2O 527.8 kt (2050)
- Emissions from livestock — Emissions (CO2eq) from CH4 932.22 kt (2050)
- Emissions from livestock — Emissions 1.99 kt (2050)
- Emissions from livestock — Emissions 33.29 kt (2050)
- Emissions from crops — Emissions (CO2eq) 273.82 kt (2050)
- Emissions from crops — Emissions (CO2eq) from N2O 40.84 kt (2050)
- Emissions from crops — Emissions (CO2eq) from CH4 232.99 kt (2050)
- Emissions from crops — Emissions 0.1541 kt (2050)
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.