Exposure to extreme temperature — Annual temperature change in Tonga

Tonga: Exposure to extreme temperature — Annual temperature change was 0.4011 Degrees celsius in 2023. ◆ Volatile

Latest (2023)
0.4011 Degrees celsius
Change on year
down 57.4%
World rank
250th
of 263 countries
All-time high
0.9414 Degrees celsius
in 2022
All-time low
-0.6149 Degrees celsius
in 1987
Years of data
45
1979–2023

Exposure to extreme temperature — Annual temperature change in Tonga, 1979–2023

-0.500.511979200120231979: -0.178 Degrees celsius1980: -0.215 Degrees celsius1981: -0.258 Degrees celsius1982: -0.338 Degrees celsius1983: -0.328 Degrees celsius1984: 0.027 Degrees celsius1985: -0.14 Degrees celsius1986: -0.543 Degrees celsius1987: -0.615 Degrees celsius1988: 0.389 Degrees celsius1989: 0.002 Degrees celsius1990: -0.021 Degrees celsius1991: -0.065 Degrees celsius1992: -0.23 Degrees celsius1993: -0.51 Degrees celsius1994: -0.49 Degrees celsius1995: 0.011 Degrees celsius1996: 0.233 Degrees celsius1997: -0.21 Degrees celsius1998: 0.119 Degrees celsius1999: 0.187 Degrees celsius2000: 0.41 Degrees celsius2001: 0.182 Degrees celsius2002: 0.307 Degrees celsius2003: -0.014 Degrees celsius2004: 0.248 Degrees celsius2005: 0.338 Degrees celsius2006: 0.207 Degrees celsius2007: 0.466 Degrees celsius2008: 0.342 Degrees celsius2009: -0.263 Degrees celsius2010: 0.559 Degrees celsius2011: 0.617 Degrees celsius2012: 0.314 Degrees celsius2013: 0.706 Degrees celsius2014: 0.132 Degrees celsius2015: -0.267 Degrees celsius2016: 0.508 Degrees celsius2017: 0.523 Degrees celsius2018: 0.431 Degrees celsius2019: 0.431 Degrees celsius2020: 0.612 Degrees celsius2021: 0.509 Degrees celsius2022: 0.941 Degrees celsius2023: 0.401 Degrees celsius

Source: Organisation for Economic Co-operation and Development. Measured in Degrees celsius.

Analysis

In 2023, exposure to extreme temperature — annual temperature change in Tonga stood at 0.4011 Degrees celsius.

That represents a change of down 57.4% on the previous year and down 43.2% over ten years.

Over the whole period, exposure to extreme temperature — annual temperature change in Tonga peaked at 0.9414 Degrees celsius in 2022 and was at its lowest, -0.6149 Degrees celsius, in 1987.

Tonga ranks 250th of 263 countries on this measure, in the bottom quarter.

The series is highly variable year to year, so single readings are best treated with caution.

Averages by decade

DecadeAverage LowestHighest Years
1970s -0.1779 Degrees celsius -0.1779 Degrees celsius -0.1779 Degrees celsius 1
1980s -0.202 Degrees celsius -0.6149 Degrees celsius 0.3887 Degrees celsius 10
1990s -0.0977 Degrees celsius -0.5105 Degrees celsius 0.2335 Degrees celsius 10
2000s 0.2223 Degrees celsius -0.2627 Degrees celsius 0.4662 Degrees celsius 10
2010s 0.3954 Degrees celsius -0.2671 Degrees celsius 0.7056 Degrees celsius 10
2020s 0.6161 Degrees celsius 0.4011 Degrees celsius 0.9414 Degrees celsius 4

Countries ranked near Tonga

  1. 247 Nauru 0.4194 Degrees celsius compare
  2. 248 American Samoa 0.4188 Degrees celsius compare
  3. 249 Sweden 0.4029 Degrees celsius compare
  4. 251 Faroe Islands 0.3977 Degrees celsius compare
  5. 252 Sri Lanka 0.3813 Degrees celsius compare
  6. 253 Vanuatu 0.3654 Degrees celsius compare

See the full ranking of 979 places →

More reference data data for Tonga

All data for Tonga →

Frequently asked questions

What is exposure to extreme temperature — annual temperature change in Tonga?
Exposure to extreme temperature — annual temperature change in Tonga was 0.4011 Degrees celsius in 2023, according to Organisation for Economic Co-operation and Development.
What is the highest exposure to extreme temperature — annual temperature change recorded in Tonga?
The highest recorded value was 0.9414 Degrees celsius in 2022.
What is the lowest exposure to extreme temperature — annual temperature change recorded in Tonga?
The lowest recorded value was -0.6149 Degrees celsius in 1987.
How does Tonga rank for exposure to extreme temperature — annual temperature change?
Tonga ranks 250th out of 263 countries with data for 2023.
Is exposure to extreme temperature — annual temperature change rising or falling in Tonga?
Over the last ten years it is down 43.2%. The long-run trend across the full record is volatile.
Where does this Tonga data come from?
The figures come from Organisation for Economic Co-operation and Development, published as part of Exposure to extreme temperature — Annual temperature change. Statizoid updates them automatically from the source API.

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Exposure to extreme temperature — Annual temperature change in Tonga. Statizoid, drawing on Organisation for Economic Co-operation and Development. Retrieved 20 August 2026, from https://reference.statizoid.com/stat/exposure-to-extreme-temperature-annual-temperature-change/tonga/

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About this data

Indicator
Exposure to extreme temperature — Annual temperature change
Unit
Degrees celsius
Source
Organisation for Economic Co-operation and Development
Licence
OECD Terms and Conditions (attribution required)
Coverage
979 places, 44,055 data points, 1979–2023
Last refreshed

The dataset provides a global assessment of changes in average temperature by providing the temperature anomaly, days with above-average temperatures and days with below-average temperatures. Exposure indicators to extreme temperature have been prepared jointly by the Organisation for Economic Co-operation and Development (OECD) and the International Energy Agency (IEA). Please see the working paper for a more complete description of the methods. The dataset also provides a global assessment of extreme temperatures through the use of a variety of climate indices, including hot days, tropical nights, the Universal Thermal Climate Index and icing days. The datasets span the period 1979-2022, depending on data availability and are the result of the use of a variety of geospatial data sources. The dataset has a global coverage on a national level; on the sub-national TL2 level (i.e. large subnational regions) results are reported for all OECD countries as well as for Argentina, Brazil, China, India, Indonesia and South Africa. A number of aggregates are included: Euro area, European Union, Advanced economies, Emerging market economies, G7, G20, OECD, OECD Europe, OECD Asia Oceania, OECD Americas and the LAC region. Data source(s): Copernicus Climate Data Store temperature data (ERA5) and Global Human Settlement Layer population grid data. Contact: ENV.Stat@oecd.org Database documentation