Annual precipitation in Tanzania
Tanzania: Annual precipitation was 934.02 millimeters in 2025. ▼ Falling
Latest (2025)
934.02 millimeters
Change on year
down 28.3%
World rank
103rd
of 192 countries
All-time high
1,727 millimeters
in 1957
All-time low
625.68 millimeters
in 1943
Years of data
86
1940–2025
Annual precipitation in Tanzania, 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 Tanzania stood at 934.02 millimeters.
The figure is down 28.3% on the previous year and down 12.6% over ten years.
Over the whole period, annual precipitation in Tanzania peaked at 1,727 millimeters in 1957 and was at its lowest, 625.68 millimeters, in 1943.
That places Tanzania 103rd out of 192 countries with data for 2025, putting it in the middle of the range.
The long-run direction has been consistently falling across the 86 years of available data.
Annual precipitation in Tanzania, year by year
| Year | millimeters | Change |
|---|---|---|
| 1940 | 1,143 millimeters | — |
| 1941 | 1,202 millimeters | +5.1% |
| 1942 | 769.02 millimeters | -36.0% |
| 1943 | 625.68 millimeters | -18.6% |
| 1944 | 796.8 millimeters | +27.3% |
| 1945 | 1,017 millimeters | +27.7% |
| 1946 | 847.22 millimeters | -16.7% |
| 1947 | 1,152 millimeters | +35.9% |
| 1948 | 1,087 millimeters | -5.6% |
| 1949 | 992.86 millimeters | -8.7% |
| 1950 | 1,141 millimeters | +15.0% |
| 1951 | 1,421 millimeters | +24.5% |
| 1952 | 1,118 millimeters | -21.3% |
| 1953 | 1,698 millimeters | +51.8% |
| 1954 | 1,002 millimeters | -41.0% |
| 1955 | 1,212 millimeters | +21.0% |
| 1956 | 1,156 millimeters | -4.6% |
| 1957 | 1,727 millimeters | +49.3% |
| 1958 | 1,228 millimeters | -28.9% |
| 1959 | 1,353 millimeters | +10.2% |
| 1960 | 1,226 millimeters | -9.4% |
| 1961 | 1,622 millimeters | +32.3% |
| 1962 | 1,302 millimeters | -19.7% |
| 1963 | 1,368 millimeters | +5.0% |
| 1964 | 1,188 millimeters | -13.2% |
| 1965 | 1,213 millimeters | +2.1% |
| 1966 | 1,050 millimeters | -13.4% |
| 1967 | 1,214 millimeters | +15.5% |
| 1968 | 1,340 millimeters | +10.4% |
| 1969 | 985.04 millimeters | -26.5% |
| 1970 | 1,266 millimeters | +28.5% |
| 1971 | 1,245 millimeters | -1.6% |
| 1972 | 1,573 millimeters | +26.3% |
| 1973 | 1,205 millimeters | -23.4% |
| 1974 | 1,167 millimeters | -3.1% |
| 1975 | 1,160 millimeters | -0.6% |
| 1976 | 1,163 millimeters | +0.3% |
| 1977 | 1,427 millimeters | +22.7% |
| 1978 | 1,390 millimeters | -2.6% |
| 1979 | 1,357 millimeters | -2.4% |
| 1980 | 1,154 millimeters | -14.9% |
| 1981 | 1,138 millimeters | -1.4% |
| 1982 | 1,326 millimeters | +16.5% |
| 1983 | 1,129 millimeters | -14.8% |
| 1984 | 1,242 millimeters | +10.0% |
| 1985 | 1,207 millimeters | -2.8% |
| 1986 | 1,398 millimeters | +15.8% |
| 1987 | 1,136 millimeters | -18.8% |
| 1988 | 1,081 millimeters | -4.9% |
| 1989 | 1,339 millimeters | +23.9% |
| 1990 | 1,107 millimeters | -17.4% |
| 1991 | 1,178 millimeters | +6.4% |
| 1992 | 1,019 millimeters | -13.5% |
| 1993 | 881.12 millimeters | -13.5% |
| 1994 | 1,148 millimeters | +30.3% |
| 1995 | 994.55 millimeters | -13.4% |
| 1996 | 963.41 millimeters | -3.1% |
| 1997 | 1,247 millimeters | +29.5% |
| 1998 | 1,087 millimeters | -12.9% |
| 1999 | 919.51 millimeters | -15.4% |
| 2000 | 961.96 millimeters | +4.6% |
| 2001 | 974.44 millimeters | +1.3% |
| 2002 | 1,158 millimeters | +18.8% |
| 2003 | 764.71 millimeters | -34.0% |
| 2004 | 1,031 millimeters | +34.8% |
| 2005 | 760.41 millimeters | -26.2% |
| 2006 | 1,186 millimeters | +55.9% |
| 2007 | 952.14 millimeters | -19.7% |
| 2008 | 998.55 millimeters | +4.9% |
| 2009 | 945.36 millimeters | -5.3% |
| 2010 | 963.66 millimeters | +1.9% |
| 2011 | 1,150 millimeters | +19.4% |
| 2012 | 1,012 millimeters | -12.0% |
| 2013 | 1,042 millimeters | +3.0% |
| 2014 | 1,071 millimeters | +2.7% |
| 2015 | 1,068 millimeters | -0.2% |
| 2016 | 988.22 millimeters | -7.5% |
| 2017 | 1,049 millimeters | +6.1% |
| 2018 | 1,169 millimeters | +11.5% |
| 2019 | 1,228 millimeters | +5.0% |
| 2020 | 1,320 millimeters | +7.5% |
| 2021 | 902.38 millimeters | -31.7% |
| 2022 | 998.95 millimeters | +10.7% |
| 2023 | 1,126 millimeters | +12.7% |
| 2024 | 1,303 millimeters | +15.7% |
| 2025 | 934.02 millimeters | -28.3% |
Tanzania compared with similar countries
- Tanzania's 934.02 millimeters is below the median for lower middle income countries, which is 1,013 millimeters, 92% of the median. (47 countries reporting)
- Tanzania's 934.02 millimeters is below the median for Sub-Saharan Africa, which is 970.56 millimeters, 96% of the median. (48 countries reporting)
Averages by decade
| Decade | Average | Lowest | Highest | Years |
|---|---|---|---|---|
| 1940s | 963.27 millimeters | 625.68 millimeters | 1,202 millimeters | 10 |
| 1950s | 1,306 millimeters | 1,002 millimeters | 1,727 millimeters | 10 |
| 1960s | 1,251 millimeters | 985.04 millimeters | 1,622 millimeters | 10 |
| 1970s | 1,295 millimeters | 1,160 millimeters | 1,573 millimeters | 10 |
| 1980s | 1,215 millimeters | 1,081 millimeters | 1,398 millimeters | 10 |
| 1990s | 1,054 millimeters | 881.12 millimeters | 1,247 millimeters | 10 |
| 2000s | 973.23 millimeters | 760.41 millimeters | 1,186 millimeters | 10 |
| 2010s | 1,074 millimeters | 963.66 millimeters | 1,228 millimeters | 10 |
| 2020s | 1,097 millimeters | 902.38 millimeters | 1,320 millimeters | 6 |
Countries ranked near Tanzania
More climate change data for Tanzania
- Spring temperature anomalies -0.6683 °C (2026)
- Summer temperature anomalies 0.3295 °C (2026)
- Temperature anomalies by month 0.5126 °C (2026)
- Share of global CO₂ emissions and population 2.6% (2100)
- Population, total, annual growth rate 2.9 % change on previous year (2025)
- Population, total, per unit of GDP 0.0008 units per US$ of GDP (2025)
- Urban population, annual growth rate 4.93 % change on previous year (2025)
- Urban population, per unit of GDP 0.0003 units per US$ of GDP (2025)
- Urban population, per capita 0.3688 units per person (2025)
- Precipitation anomalies, annual growth rate -140.91 % change on previous year (2025)
Frequently asked questions
- What is annual precipitation in Tanzania?
- Annual precipitation in Tanzania was 934.02 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 Tanzania?
- The highest recorded value was 1,727 millimeters in 1957.
- What is the lowest annual precipitation recorded in Tanzania?
- The lowest recorded value was 625.68 millimeters in 1943.
- How does Tanzania rank for annual precipitation?
- Tanzania ranks 103rd out of 192 countries with data for 2025.
- Is annual precipitation rising or falling in Tanzania?
- Over the last ten years it is down 12.6%. The long-run trend across the full record is falling.
- Where does this Tanzania 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.