Precipitation anomalies in Sao Tome and Principe
Sao Tome and Principe: Precipitation anomalies was -450.39 millimeters in 2025. ◆ Volatile
Latest (2025)
-450.39 millimeters
Change on year
down 507.3%
World rank
191st
of 192 countries
All-time high
919.17 millimeters
in 2007
All-time low
-906.65 millimeters
in 1957
Years of data
86
1940–2025
Precipitation anomalies in Sao Tome and Principe, 1940–2025
Source: Contains modified Copernicus Climate Change Service information (2026) – with major processing by Our World in Data. Measured in millimeters.
Analysis
The most recent figure for precipitation anomalies in Sao Tome and Principe is -450.39 millimeters, measured in 2025.
That represents a change of down 507.3% on the previous year and down 85.5% over ten years.
Over the whole period, precipitation anomalies in Sao Tome and Principe peaked at 919.17 millimeters in 2007 and was at its lowest, -906.65 millimeters, in 1957.
That places Sao Tome and Principe 191st out of 192 countries with data for 2025, putting it in the bottom quarter.
The series is highly variable year to year, so single readings are best treated with caution.
Precipitation anomalies in Sao Tome and Principe, year by year
| Year | millimeters | Change |
|---|---|---|
| 1940 | -226.97 millimeters | — |
| 1941 | -464.68 millimeters | +104.7% |
| 1942 | -56.16 millimeters | -87.9% |
| 1943 | -208.38 millimeters | +271.1% |
| 1944 | -572.28 millimeters | +174.6% |
| 1945 | -347.46 millimeters | -39.3% |
| 1946 | -308.75 millimeters | -11.1% |
| 1947 | -186.82 millimeters | -39.5% |
| 1948 | 141.75 millimeters | -175.9% |
| 1949 | -315.25 millimeters | -322.4% |
| 1950 | 4.34 millimeters | -101.4% |
| 1951 | 84.77 millimeters | +1853.8% |
| 1952 | -165.54 millimeters | -295.3% |
| 1953 | -292.96 millimeters | +77.0% |
| 1954 | -90.6 millimeters | -69.1% |
| 1955 | -107.11 millimeters | +18.2% |
| 1956 | -534.12 millimeters | +398.7% |
| 1957 | -906.65 millimeters | +69.7% |
| 1958 | -324.75 millimeters | -64.2% |
| 1959 | -255.19 millimeters | -21.4% |
| 1960 | 46.26 millimeters | -118.1% |
| 1961 | 330.86 millimeters | +615.2% |
| 1962 | -93.71 millimeters | -128.3% |
| 1963 | 528.46 millimeters | -663.9% |
| 1964 | -248.2 millimeters | -147.0% |
| 1965 | -179.79 millimeters | -27.6% |
| 1966 | 163.83 millimeters | -191.1% |
| 1967 | 204.07 millimeters | +24.6% |
| 1968 | 12.97 millimeters | -93.6% |
| 1969 | -432.71 millimeters | -3435.4% |
| 1970 | -440.24 millimeters | +1.7% |
| 1971 | -383.1 millimeters | -13.0% |
| 1972 | -220.29 millimeters | -42.5% |
| 1973 | 355.71 millimeters | -261.5% |
| 1974 | 246.91 millimeters | -30.6% |
| 1975 | 109.94 millimeters | -55.5% |
| 1976 | 254.44 millimeters | +131.4% |
| 1977 | 34.55 millimeters | -86.4% |
| 1978 | -203.98 millimeters | -690.3% |
| 1979 | -79.53 millimeters | -61.0% |
| 1980 | 126.18 millimeters | -258.7% |
| 1981 | 201.85 millimeters | +60.0% |
| 1982 | 88.18 millimeters | -56.3% |
| 1983 | -421.02 millimeters | -577.4% |
| 1984 | 199.89 millimeters | -147.5% |
| 1985 | -40.88 millimeters | -120.4% |
| 1986 | 83.65 millimeters | -304.6% |
| 1987 | -231.72 millimeters | -377.0% |
| 1988 | 243.51 millimeters | -205.1% |
| 1989 | -54.66 millimeters | -122.4% |
| 1990 | -46.62 millimeters | -14.7% |
| 1991 | 163.6 millimeters | -450.9% |
| 1992 | -320.6 millimeters | -296.0% |
| 1993 | -36.93 millimeters | -88.5% |
| 1994 | -272.9 millimeters | +639.0% |
| 1995 | -133.65 millimeters | -51.0% |
| 1996 | 25.63 millimeters | -119.2% |
| 1997 | -69.06 millimeters | -369.5% |
| 1998 | -126.51 millimeters | +83.2% |
| 1999 | -183.4 millimeters | +45.0% |
| 2000 | -243.25 millimeters | +32.6% |
| 2001 | -126.21 millimeters | -48.1% |
| 2002 | -34.91 millimeters | -72.3% |
| 2003 | 474.62 millimeters | -1459.4% |
| 2004 | -262.99 millimeters | -155.4% |
| 2005 | -374.63 millimeters | +42.5% |
| 2006 | 107.14 millimeters | -128.6% |
| 2007 | 919.17 millimeters | +757.9% |
| 2008 | 278.84 millimeters | -69.7% |
| 2009 | 250.57 millimeters | -10.1% |
| 2010 | -389.07 millimeters | -255.3% |
| 2011 | -218.09 millimeters | -43.9% |
| 2012 | 324.55 millimeters | -248.8% |
| 2013 | -259.52 millimeters | -180.0% |
| 2014 | 138.01 millimeters | -153.2% |
| 2015 | -242.77 millimeters | -275.9% |
| 2016 | 185.48 millimeters | -176.4% |
| 2017 | -62.08 millimeters | -133.5% |
| 2018 | 265.28 millimeters | -527.3% |
| 2019 | 57.43 millimeters | -78.4% |
| 2020 | 166.24 millimeters | +189.5% |
| 2021 | 126.18 millimeters | -24.1% |
| 2022 | 78.42 millimeters | -37.8% |
| 2023 | 144.78 millimeters | +84.6% |
| 2024 | 110.58 millimeters | -23.6% |
| 2025 | -450.39 millimeters | -507.3% |
Sao Tome and Principe compared with similar countries
- Sao Tome and Principe's -450.39 millimeters is below the median for lower middle income countries, which is -16.79 millimeters, 26.8× the median. (47 countries reporting)
- Sao Tome and Principe's -450.39 millimeters is below the median for Sub-Saharan Africa, which is -73.9 millimeters, 6.1× the median. (48 countries reporting)
Biggest year-on-year movements
Years where Precipitation anomalies in Sao Tome and Principe 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 |
|---|---|---|---|
| 1969 | -3435.4% | 12.97 millimeters | -432.71 millimeters |
| 1951 | +1853.8% | 4.34 millimeters | 84.77 millimeters |
| 2003 | +1459.4% | -34.91 millimeters | 474.62 millimeters |
Averages by decade
| Decade | Average | Lowest | Highest | Years |
|---|---|---|---|---|
| 1940s | -254.5 millimeters | -572.28 millimeters | 141.75 millimeters | 10 |
| 1950s | -258.78 millimeters | -906.65 millimeters | 84.77 millimeters | 10 |
| 1960s | 33.2 millimeters | -432.71 millimeters | 528.46 millimeters | 10 |
| 1970s | -32.56 millimeters | -440.24 millimeters | 355.71 millimeters | 10 |
| 1980s | 19.5 millimeters | -421.02 millimeters | 243.51 millimeters | 10 |
| 1990s | -100.04 millimeters | -320.6 millimeters | 163.6 millimeters | 10 |
| 2000s | 98.84 millimeters | -374.63 millimeters | 919.17 millimeters | 10 |
| 2010s | -20.08 millimeters | -389.07 millimeters | 324.55 millimeters | 10 |
| 2020s | 29.3 millimeters | -450.39 millimeters | 166.24 millimeters | 6 |
Countries ranked near Sao Tome and Principe
- 188 Cayman Islands -379.98 millimeters compare
- 189 Comoros -383 millimeters compare
- 190 Seychelles -410.08 millimeters compare
- 192 Bhutan -452.79 millimeters compare
More climate change data for Sao Tome and Principe
- Nutrient nitrogen N (total) — Synthetic fertilizers (Agricultural) 133,140 kg (2023)
- Emissions from livestock — Emissions (CO2eq) 23.37 kt (2050)
- Emissions from livestock — Emissions (CO2eq) from N2O 15.5 kt (2050)
- Emissions from livestock — Emissions (CO2eq) from CH4 7.87 kt (2050)
- Emissions from livestock — Emissions 0.0585 kt (2050)
- Emissions from livestock — Emissions 0.2811 kt (2050)
- Emissions from crops — Emissions (CO2eq) 0.5528 kt (2050)
- Emissions from crops — Emissions (CO2eq) from N2O 0.424 kt (2050)
- Emissions from crops — Emissions (CO2eq) from CH4 0.1288 kt (2050)
- Emissions from crops — Emissions 0.0016 kt (2050)
Frequently asked questions
- What is precipitation anomalies in Sao Tome and Principe?
- Precipitation anomalies in Sao Tome and Principe was -450.39 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 precipitation anomalies recorded in Sao Tome and Principe?
- The highest recorded value was 919.17 millimeters in 2007.
- What is the lowest precipitation anomalies recorded in Sao Tome and Principe?
- The lowest recorded value was -906.65 millimeters in 1957.
- How does Sao Tome and Principe rank for precipitation anomalies?
- Sao Tome and Principe ranks 191st out of 192 countries with data for 2025.
- Is precipitation anomalies rising or falling in Sao Tome and Principe?
- Over the last ten years it is down 85.5%. The long-run trend across the full record is volatile.
- Where does this Sao Tome and Principe 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 Precipitation anomalies. 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
Difference in a specific year's total precipitation—rain and snow—from the 1991–2020 average, measured in millimeters, excluding fog and dew.