Temperature anomalies vs. latitude in Heard Island and McDonald Islands
Heard Island and McDonald Islands: Temperature anomalies vs. latitude was 0.8308 °C in 2025. ◆ Volatile
Temperature anomalies vs. latitude 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 °C.
Analysis
Heard Island and McDonald Islands recorded 0.8308 °C for temperature anomalies vs. latitude in 2025. That is the highest value across all 86 years on record.
That represents a change of up 124.9% on the previous year and up 623.1% over ten years.
Over the whole period, temperature anomalies vs. latitude in Heard Island and McDonald Islands peaked at 0.8308 °C in 2025 and was at its lowest, -1 °C, in 1944.
That places Heard Island and McDonald Islands 68th out of 193 countries with data for 2025, putting it in the middle of the range.
The series is highly variable year to year, so single readings are best treated with caution.
Temperature anomalies vs. latitude in Heard Island and McDonald Islands, year by year
| Year | °C | Change |
|---|---|---|
| 1940 | -0.7879 °C | — |
| 1941 | -0.9899 °C | +25.6% |
| 1942 | -0.5548 °C | -44.0% |
| 1943 | -0.7223 °C | +30.2% |
| 1944 | -1 °C | +38.9% |
| 1945 | -0.6743 °C | -32.8% |
| 1946 | -0.4678 °C | -30.6% |
| 1947 | -0.3369 °C | -28.0% |
| 1948 | -0.6499 °C | +92.9% |
| 1949 | -0.8501 °C | +30.8% |
| 1950 | -0.7646 °C | -10.1% |
| 1951 | -0.0904 °C | -88.2% |
| 1952 | -0.2639 °C | +191.9% |
| 1953 | -0.4991 °C | +89.2% |
| 1954 | -0.5076 °C | +1.7% |
| 1955 | -0.6102 °C | +20.2% |
| 1956 | -0.5467 °C | -10.4% |
| 1957 | -0.6338 °C | +15.9% |
| 1958 | -0.1344 °C | -78.8% |
| 1959 | -0.4241 °C | +215.5% |
| 1960 | -0.0925 °C | -78.2% |
| 1961 | -0.2488 °C | +169.0% |
| 1962 | -0.3965 °C | +59.4% |
| 1963 | -0.5538 °C | +39.7% |
| 1964 | -0.5443 °C | -1.7% |
| 1965 | -0.4137 °C | -24.0% |
| 1966 | -0.2661 °C | -35.7% |
| 1967 | -0.3729 °C | +40.1% |
| 1968 | -0.0897 °C | -75.9% |
| 1969 | -0.0564 °C | -37.1% |
| 1970 | -0.1403 °C | +148.7% |
| 1971 | -0.3107 °C | +121.5% |
| 1972 | -0.4247 °C | +36.7% |
| 1973 | -0.379 °C | -10.7% |
| 1974 | -0.6423 °C | +69.4% |
| 1975 | -0.4848 °C | -24.5% |
| 1976 | -0.5418 °C | +11.7% |
| 1977 | -0.1818 °C | -66.4% |
| 1978 | -0.0481 °C | -73.6% |
| 1979 | 0.2368 °C | -592.8% |
| 1980 | 0.026 °C | -89.0% |
| 1981 | 0.1067 °C | +310.0% |
| 1982 | 0.3266 °C | +206.1% |
| 1983 | 0.0262 °C | -92.0% |
| 1984 | -0.2779 °C | -1159.7% |
| 1985 | -0.2512 °C | -9.6% |
| 1986 | -0.1664 °C | -33.8% |
| 1987 | 0.0838 °C | -150.4% |
| 1988 | -0.2328 °C | -377.8% |
| 1989 | -0.2522 °C | +8.3% |
| 1990 | -0.1644 °C | -34.8% |
| 1991 | -0.0294 °C | -82.1% |
| 1992 | -0.0055 °C | -81.1% |
| 1993 | -0.134 °C | +2318.7% |
| 1994 | -0.3351 °C | +150.0% |
| 1995 | -0.2162 °C | -35.5% |
| 1996 | -0.4759 °C | +120.2% |
| 1997 | 0.2089 °C | -143.9% |
| 1998 | 0.2057 °C | -1.6% |
| 1999 | -0.2837 °C | -237.9% |
| 2000 | -0.2804 °C | -1.2% |
| 2001 | -0.0008 °C | -99.7% |
| 2002 | -0.0371 °C | +4317.9% |
| 2003 | 0.2306 °C | -721.3% |
| 2004 | 0.0561 °C | -75.7% |
| 2005 | -0.2674 °C | -577.1% |
| 2006 | -0.2346 °C | -12.3% |
| 2007 | -0.3674 °C | +56.6% |
| 2008 | 0.0426 °C | -111.6% |
| 2009 | -0.1318 °C | -409.6% |
| 2010 | 0.1698 °C | -228.8% |
| 2011 | 0.0221 °C | -87.0% |
| 2012 | 0.3927 °C | +1679.3% |
| 2013 | 0.0887 °C | -77.4% |
| 2014 | -0.4988 °C | -662.4% |
| 2015 | -0.1588 °C | -68.2% |
| 2016 | 0.3718 °C | -334.1% |
| 2017 | 0.6433 °C | +73.1% |
| 2018 | 0.4253 °C | -33.9% |
| 2019 | 0.3395 °C | -20.2% |
| 2020 | 0.26 °C | -23.4% |
| 2021 | 0.1978 °C | -23.9% |
| 2022 | 0.1353 °C | -31.6% |
| 2023 | 0.6211 °C | +359.1% |
| 2024 | 0.3693 °C | -40.5% |
| 2025 | 0.8308 °C | +124.9% |
Biggest year-on-year movements
Years where Temperature anomalies vs. latitude in Heard Island and McDonald Islands 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 |
|---|---|---|---|
| 2002 | -4317.9% | -0.0008 °C | -0.0371 °C |
| 1993 | -2318.7% | -0.0055 °C | -0.134 °C |
| 2012 | +1679.3% | 0.0221 °C | 0.3927 °C |
| 1984 | -1159.7% | 0.0262 °C | -0.2779 °C |
| 2003 | +721.3% | -0.0371 °C | 0.2306 °C |
| 2014 | -662.4% | 0.0887 °C | -0.4988 °C |
Averages by decade
| Decade | Average | Lowest | Highest | Years |
|---|---|---|---|---|
| 1940s | -0.7038 °C | -1 °C | -0.3369 °C | 10 |
| 1950s | -0.4475 °C | -0.7646 °C | -0.0904 °C | 10 |
| 1960s | -0.3035 °C | -0.5538 °C | -0.0564 °C | 10 |
| 1970s | -0.2917 °C | -0.6423 °C | 0.2368 °C | 10 |
| 1980s | -0.0611 °C | -0.2779 °C | 0.3266 °C | 10 |
| 1990s | -0.123 °C | -0.4759 °C | 0.2089 °C | 10 |
| 2000s | -0.099 °C | -0.3674 °C | 0.2306 °C | 10 |
| 2010s | 0.1796 °C | -0.4988 °C | 0.6433 °C | 10 |
| 2020s | 0.4024 °C | 0.1353 °C | 0.8308 °C | 6 |
Countries ranked near Heard Island and McDonald Islands
- 65 Morocco 0.8537 °C compare
- 66 Central African Republic 0.8424 °C compare
- 67 United States 0.8334 °C compare
- 69 Portugal 0.8306 °C compare
- 70 Honduras 0.8284 °C compare
- 71 New Zealand 0.826 °C compare
More climate change data for Heard Island and McDonald Islands
- Precipitation anomalies, annual growth rate 363.4 % change on previous year (2025)
- Annual PM2.5 emissions from wildfires 0 tonnes (2026)
- Annual CO₂ emissions from wildfires 0 tonnes (2026)
- Decadal temperature anomalies 0.1796 °C (2010)
Frequently asked questions
- What is temperature anomalies vs. latitude in Heard Island and McDonald Islands?
- Temperature anomalies vs. latitude in Heard Island and McDonald Islands was 0.8308 °C in 2025, according to Contains modified Copernicus Climate Change Service information (2026) – with major processing by Our World in Data.
- What is the highest temperature anomalies vs. latitude recorded in Heard Island and McDonald Islands?
- The highest recorded value was 0.8308 °C in 2025.
- What is the lowest temperature anomalies vs. latitude recorded in Heard Island and McDonald Islands?
- The lowest recorded value was -1 °C in 1944.
- How does Heard Island and McDonald Islands rank for temperature anomalies vs. latitude?
- Heard Island and McDonald Islands ranks 68th out of 193 countries with data for 2025.
- Is temperature anomalies vs. latitude rising or falling in Heard Island and McDonald Islands?
- Over the last ten years it is up 623.1%. The long-run trend across the full record is volatile.
- 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 Temperature anomalies vs. latitude. 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 of a specific year's average surface temperature from the 1991-2020 mean, in degrees Celsius.