Precipitation anomalies in Samoa
Samoa: Precipitation anomalies was 432.88 millimeters in 2025. ◆ Volatile
Latest (2025)
432.88 millimeters
Change on year
up 122.8%
World rank
6th
of 192 countries
All-time high
1,133 millimeters
in 2020
All-time low
-1,029 millimeters
in 1950
Years of data
86
1940–2025
Precipitation anomalies in Samoa, 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 Samoa is 432.88 millimeters, measured in 2025.
Compared with earlier readings it is up 122.8% on the previous year and up 3,251.7% over ten years.
Over the whole period, precipitation anomalies in Samoa peaked at 1,133 millimeters in 2020 and was at its lowest, -1,029 millimeters, in 1950.
Samoa ranks 6th of 192 countries on this measure, in the top 10%.
The series is highly variable year to year, so single readings are best treated with caution.
Precipitation anomalies in Samoa, year by year
| Year | millimeters | Change |
|---|---|---|
| 1940 | 242.28 millimeters | — |
| 1941 | 628.11 millimeters | +159.3% |
| 1942 | -146.87 millimeters | -123.4% |
| 1943 | -540.08 millimeters | +267.7% |
| 1944 | -281.99 millimeters | -47.8% |
| 1945 | -507.83 millimeters | +80.1% |
| 1946 | -375.93 millimeters | -26.0% |
| 1947 | -215.35 millimeters | -42.7% |
| 1948 | -13.95 millimeters | -93.5% |
| 1949 | -802.42 millimeters | +5652.9% |
| 1950 | -1,029 millimeters | +28.2% |
| 1951 | -134.95 millimeters | -86.9% |
| 1952 | 285.91 millimeters | -311.9% |
| 1953 | -132.04 millimeters | -146.2% |
| 1954 | -384.97 millimeters | +191.6% |
| 1955 | -366.08 millimeters | -4.9% |
| 1956 | -533.1 millimeters | +45.6% |
| 1957 | -282.75 millimeters | -47.0% |
| 1958 | -111.02 millimeters | -60.7% |
| 1959 | 331.9 millimeters | -399.0% |
| 1960 | 536.38 millimeters | +61.6% |
| 1961 | -62.17 millimeters | -111.6% |
| 1962 | -142.74 millimeters | +129.6% |
| 1963 | -189.57 millimeters | +32.8% |
| 1964 | -314.81 millimeters | +66.1% |
| 1965 | 154.25 millimeters | -149.0% |
| 1966 | -371.69 millimeters | -341.0% |
| 1967 | 111.5 millimeters | -130.0% |
| 1968 | -670.55 millimeters | -701.4% |
| 1969 | -441.51 millimeters | -34.2% |
| 1970 | -587.42 millimeters | +33.0% |
| 1971 | -771.85 millimeters | +31.4% |
| 1972 | -136.57 millimeters | -82.3% |
| 1973 | 156.43 millimeters | -214.5% |
| 1974 | -763.26 millimeters | -587.9% |
| 1975 | -442.9 millimeters | -42.0% |
| 1976 | -664.33 millimeters | +50.0% |
| 1977 | -577.59 millimeters | -13.1% |
| 1978 | 903.62 millimeters | -256.4% |
| 1979 | -619.98 millimeters | -168.6% |
| 1980 | -416.43 millimeters | -32.8% |
| 1981 | 25.05 millimeters | -106.0% |
| 1982 | -451.9 millimeters | -1903.7% |
| 1983 | -836.68 millimeters | +85.1% |
| 1984 | -35.77 millimeters | -95.7% |
| 1985 | -318.96 millimeters | +791.7% |
| 1986 | -15.44 millimeters | -95.2% |
| 1987 | -619.87 millimeters | +3915.0% |
| 1988 | 284.14 millimeters | -145.8% |
| 1989 | -183.33 millimeters | -164.5% |
| 1990 | -26.7 millimeters | -85.4% |
| 1991 | 129.87 millimeters | -586.4% |
| 1992 | -298.16 millimeters | -329.6% |
| 1993 | -208.5 millimeters | -30.1% |
| 1994 | -271.28 millimeters | +30.1% |
| 1995 | 93.32 millimeters | -134.4% |
| 1996 | -20.17 millimeters | -121.6% |
| 1997 | -39.42 millimeters | +95.4% |
| 1998 | -483.1 millimeters | +1125.6% |
| 1999 | -319.36 millimeters | -33.9% |
| 2000 | -368.48 millimeters | +15.4% |
| 2001 | 62.54 millimeters | -117.0% |
| 2002 | -175.97 millimeters | -381.4% |
| 2003 | 213.15 millimeters | -221.1% |
| 2004 | -173.94 millimeters | -181.6% |
| 2005 | -61.58 millimeters | -64.6% |
| 2006 | 670.97 millimeters | -1189.7% |
| 2007 | 355.08 millimeters | -47.1% |
| 2008 | -113.71 millimeters | -132.0% |
| 2009 | -424.74 millimeters | +273.5% |
| 2010 | -124.46 millimeters | -70.7% |
| 2011 | -400.41 millimeters | +221.7% |
| 2012 | 171.73 millimeters | -142.9% |
| 2013 | -10.4 millimeters | -106.1% |
| 2014 | 32.64 millimeters | -413.8% |
| 2015 | -13.73 millimeters | -142.1% |
| 2016 | -364.48 millimeters | +2553.7% |
| 2017 | 517.64 millimeters | -242.0% |
| 2018 | 439.45 millimeters | -15.1% |
| 2019 | 52.25 millimeters | -88.1% |
| 2020 | 1,133 millimeters | +2068.9% |
| 2021 | -185.21 millimeters | -116.3% |
| 2022 | -596.39 millimeters | +222.0% |
| 2023 | -81.87 millimeters | -86.3% |
| 2024 | 194.29 millimeters | -337.3% |
| 2025 | 432.88 millimeters | +122.8% |
Samoa compared with similar countries
- Samoa's 432.88 millimeters is above the median for upper middle income countries, which is -15.85 millimeters. (50 countries reporting)
- Samoa's 432.88 millimeters is above the median for East Asia & Pacific, which is 153 millimeters, 2.8× the median. (27 countries reporting)
Biggest year-on-year movements
Years where Precipitation anomalies in Samoa 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 |
|---|---|---|---|
| 1949 | -5652.9% | -13.95 millimeters | -802.42 millimeters |
| 1987 | -3915.0% | -15.44 millimeters | -619.87 millimeters |
| 2016 | -2553.7% | -13.73 millimeters | -364.48 millimeters |
| 2020 | +2068.9% | 52.25 millimeters | 1,133 millimeters |
| 1982 | -1903.7% | 25.05 millimeters | -451.9 millimeters |
| 2006 | +1189.7% | -61.58 millimeters | 670.97 millimeters |
Averages by decade
| Decade | Average | Lowest | Highest | Years |
|---|---|---|---|---|
| 1940s | -201.4 millimeters | -802.42 millimeters | 628.11 millimeters | 10 |
| 1950s | -235.61 millimeters | -1,029 millimeters | 331.9 millimeters | 10 |
| 1960s | -139.09 millimeters | -670.55 millimeters | 536.38 millimeters | 10 |
| 1970s | -350.39 millimeters | -771.85 millimeters | 903.62 millimeters | 10 |
| 1980s | -256.92 millimeters | -836.68 millimeters | 284.14 millimeters | 10 |
| 1990s | -144.35 millimeters | -483.1 millimeters | 129.87 millimeters | 10 |
| 2000s | -1.67 millimeters | -424.74 millimeters | 670.97 millimeters | 10 |
| 2010s | 30.02 millimeters | -400.41 millimeters | 517.64 millimeters | 10 |
| 2020s | 149.49 millimeters | -596.39 millimeters | 1,133 millimeters | 6 |
Countries ranked near Samoa
- 3 Brunei 606.1 millimeters compare
- 4 New Caledonia 493 millimeters compare
- 5 Indonesia 460.93 millimeters compare
- 7 Sierra Leone 425.21 millimeters compare
- 8 American Samoa 406.76 millimeters compare
- 9 Vietnam 350.35 millimeters compare
More climate change data for Samoa
- Nutrient nitrogen N (total) — Synthetic fertilizers (Agricultural) 18,792 kg (2050)
- Emissions from livestock — Emissions (CO2eq) 319.45 kt (2050)
- Emissions from livestock — Emissions (CO2eq) from N2O 61.35 kt (2050)
- Emissions from livestock — Emissions (CO2eq) from CH4 258.11 kt (2050)
- Emissions from livestock — Emissions 0.2315 kt (2050)
- Emissions from livestock — Emissions 9.22 kt (2050)
- Emissions from crops — Emissions (CO2eq) 0.106 kt (2050)
- Emissions from crops — Emissions (CO2eq) from N2O 0.106 kt (2050)
- Emissions from crops — Emissions (CO2eq) from CH4 0 kt (2050)
- Emissions from crops — Emissions 0.0004 kt (2050)
Frequently asked questions
- What is precipitation anomalies in Samoa?
- Precipitation anomalies in Samoa was 432.88 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 Samoa?
- The highest recorded value was 1,133 millimeters in 2020.
- What is the lowest precipitation anomalies recorded in Samoa?
- The lowest recorded value was -1,029 millimeters in 1950.
- How does Samoa rank for precipitation anomalies?
- Samoa ranks 6th out of 192 countries with data for 2025.
- Is precipitation anomalies rising or falling in Samoa?
- Over the last ten years it is up 3,251.7%. The long-run trend across the full record is volatile.
- Where does this Samoa 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.