Annual precipitation in Heard Island and McDonald Islands
Heard Island and McDonald Islands: Annual precipitation was 1,377 millimeters in 2025. ▲ Rising
Annual precipitation in Heard Island and McDonald Islands, 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 Heard Island and McDonald Islands stood at 1,377 millimeters.
Compared with earlier readings it is up 3.0% on the previous year and up 2.9% over ten years.
Over the whole period, annual precipitation in Heard Island and McDonald Islands peaked at 1,545 millimeters in 2019 and was at its lowest, 867.41 millimeters, in 1949.
Heard Island and McDonald Islands ranks 61st of 192 countries on this measure, in the middle of the range.
The long-run direction has been consistently rising across the 86 years of available data.
Averages by decade
| Decade | Average | Lowest | Highest | Years |
|---|---|---|---|---|
| 1940s | 1,217 millimeters | 867.41 millimeters | 1,334 millimeters | 10 |
| 1950s | 1,040 millimeters | 897.77 millimeters | 1,212 millimeters | 10 |
| 1960s | 1,166 millimeters | 1,091 millimeters | 1,250 millimeters | 10 |
| 1970s | 1,215 millimeters | 1,075 millimeters | 1,342 millimeters | 10 |
| 1980s | 1,309 millimeters | 1,245 millimeters | 1,416 millimeters | 10 |
| 1990s | 1,319 millimeters | 1,062 millimeters | 1,375 millimeters | 10 |
| 2000s | 1,339 millimeters | 1,250 millimeters | 1,409 millimeters | 10 |
| 2010s | 1,391 millimeters | 1,240 millimeters | 1,545 millimeters | 10 |
| 2020s | 1,339 millimeters | 1,300 millimeters | 1,377 millimeters | 6 |
Countries ranked near Heard Island and McDonald Islands
- 58 India 1,404 millimeters compare
- 59 Trinidad and Tobago 1,391 millimeters compare
- 60 Democratic Republic of Congo 1,383 millimeters compare
- 62 El Salvador 1,358 millimeters compare
- 63 Lesotho 1,329 millimeters compare
- 64 Uganda 1,308 millimeters compare
More reference data data for Heard Island and McDonald Islands
- Summer temperature anomalies 1.56 °C (2026)
- Spring temperature anomalies 0.8521 °C (2026)
- Temperature anomalies by month 0.876 °C (2026)
- Precipitation anomalies 29.5 millimeters (2025)
- Autumn temperature anomalies 0.9668 °C (2025)
- Winter temperature anomalies 0.8706 °C (2025)
- Annual temperature anomalies 0.8308 °C (2025)
- Average annual surface temperature 2.45 °C (2025)
- Red List Index 0.93 index (2024)
- Member countries of the International Treaty on Plant Genetic Resources for Food and Agriculture 0 number (2024)
Frequently asked questions
- What is annual precipitation in Heard Island and McDonald Islands?
- Annual precipitation in Heard Island and McDonald Islands was 1,377 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 Heard Island and McDonald Islands?
- The highest recorded value was 1,545 millimeters in 2019.
- What is the lowest annual precipitation recorded in Heard Island and McDonald Islands?
- The lowest recorded value was 867.41 millimeters in 1949.
- How does Heard Island and McDonald Islands rank for annual precipitation?
- Heard Island and McDonald Islands ranks 61st out of 192 countries with data for 2025.
- Is annual precipitation rising or falling in Heard Island and McDonald Islands?
- Over the last ten years it is up 2.9%. The long-run trend across the full record is rising.
- Where does this Heard Island and McDonald Islands 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.