Annual precipitation in Samoa
Samoa: Annual precipitation was 3,284 millimeters in 2025. ▲ Rising
Annual precipitation 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
Samoa recorded 3,284 millimeters for annual precipitation in 2025.
That represents a change of up 7.8% on the previous year and up 15.7% over ten years.
Over the whole period, annual precipitation in Samoa peaked at 3,985 millimeters in 2020 and was at its lowest, 1,822 millimeters, in 1950.
Samoa ranks 9th of 192 countries on this measure, in the top 10%.
The long-run direction has been consistently rising across the 86 years of available data.
Averages by decade
| Decade | Average | Lowest | Highest | Years |
|---|---|---|---|---|
| 1940s | 2,650 millimeters | 2,049 millimeters | 3,479 millimeters | 10 |
| 1950s | 2,616 millimeters | 1,822 millimeters | 3,183 millimeters | 10 |
| 1960s | 2,712 millimeters | 2,181 millimeters | 3,388 millimeters | 10 |
| 1970s | 2,501 millimeters | 2,079 millimeters | 3,755 millimeters | 10 |
| 1980s | 2,594 millimeters | 2,015 millimeters | 3,135 millimeters | 10 |
| 1990s | 2,707 millimeters | 2,368 millimeters | 2,981 millimeters | 10 |
| 2000s | 2,850 millimeters | 2,427 millimeters | 3,522 millimeters | 10 |
| 2010s | 2,881 millimeters | 2,451 millimeters | 3,369 millimeters | 10 |
| 2020s | 3,001 millimeters | 2,255 millimeters | 3,985 millimeters | 6 |
Countries ranked near Samoa
More reference data data for Samoa
- Spring temperature anomalies 0.1251 °C (2026)
- Temperature anomalies by month 0.2414 °C (2026)
- Summer temperature anomalies -0.2407 °C (2026)
- Free country 2 (2025)
- Men's universal right to vote 1 (2025)
- Civil liberties rating 2 (2025)
- Universal right to vote 2 (2025)
- Elected parliament 1 (2025)
- Democracy 7 (2025)
- Winter temperature anomalies 0.4124 °C (2025)
Frequently asked questions
- What is annual precipitation in Samoa?
- Annual precipitation in Samoa was 3,284 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 Samoa?
- The highest recorded value was 3,985 millimeters in 2020.
- What is the lowest annual precipitation recorded in Samoa?
- The lowest recorded value was 1,822 millimeters in 1950.
- How does Samoa rank for annual precipitation?
- Samoa ranks 9th out of 192 countries with data for 2025.
- Is annual precipitation rising or falling in Samoa?
- Over the last ten years it is up 15.7%. The long-run trend across the full record is rising.
- 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 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.