Heard Island and McDonald Islands vs South Georgia and the South Sandwich Islands: Average annual surface temperature
Average annual surface temperature over time
- Heard Island and McDonald Islands
- South Georgia and the South Sandwich Islands
How they compare
Heard Island and McDonald Islands currently reports 2.45 °C against -0.0896 °C in South Georgia and the South Sandwich Islands, a difference of 2.54 °C.
That makes Heard Island and McDonald Islands's figure about 27.3 times South Georgia and the South Sandwich Islands's.
Across all 86 years both countries report, Heard Island and McDonald Islands has been ahead every year.
Heard Island and McDonald Islands ranks 188th and South Georgia and the South Sandwich Islands ranks 190th of 193 countries.
Heard Island and McDonald Islands has averaged higher in every one of the 9 decades both report.
Head to head by decade
| Decade | Heard Island and McDonald Islands | South Georgia and the South Sandwich Islands | Difference | Ahead |
|---|---|---|---|---|
| 1940s | 0.9125 °C | -1.55 °C | 2.46 °C | Heard Island and McDonald Islands |
| 1950s | 1.17 °C | -1.34 °C | 2.51 °C | Heard Island and McDonald Islands |
| 1960s | 1.31 °C | -1.43 °C | 2.74 °C | Heard Island and McDonald Islands |
| 1970s | 1.32 °C | -1.07 °C | 2.4 °C | Heard Island and McDonald Islands |
| 1980s | 1.56 °C | -0.8306 °C | 2.39 °C | Heard Island and McDonald Islands |
| 1990s | 1.49 °C | -0.7867 °C | 2.28 °C | Heard Island and McDonald Islands |
| 2000s | 1.52 °C | -0.8308 °C | 2.35 °C | Heard Island and McDonald Islands |
| 2010s | 1.8 °C | -0.4785 °C | 2.27 °C | Heard Island and McDonald Islands |
| 2020s | 2.02 °C | -0.1929 °C | 2.21 °C | Heard Island and McDonald Islands |
Averages of every year both report within each decade.
Frequently asked questions
- Which has higher average annual surface temperature, Heard Island and McDonald Islands or South Georgia and the South Sandwich Islands?
- Heard Island and McDonald Islands, at 2.45 °C against -0.0896 °C in South Georgia and the South Sandwich Islands as of 2025.
- What is the difference in average annual surface temperature between Heard Island and McDonald Islands and South Georgia and the South Sandwich Islands?
- 2.54 °C, with Heard Island and McDonald Islands ahead.
- How many years of comparable data are there for Heard Island and McDonald Islands and South Georgia and the South Sandwich Islands?
- 86 years are reported by both, from 1940 to 2025.
- How do Heard Island and McDonald Islands and South Georgia and the South Sandwich Islands rank globally for average annual surface temperature?
- Heard Island and McDonald Islands ranks 188th and South Georgia and the South Sandwich Islands ranks 190th of 193 countries.
- Where does this data come from?
- Contains modified Copernicus Climate Change Service information (2026) – with major processing by Our World in Data, published as Average annual surface temperature. Statizoid refreshes it automatically from the source and publishes the full history for both places.
Individual pages
About this data
Temperature of the air measured 2 meters above the ground, encompassing land, sea, and in-land water surfaces.