Mauritania vs Tonga: Exposure to extreme precipitation — Annual precipitation change

Mauritania
-30.97 Millimetres per year
in 2023
Tonga
305.14 Millimetres per year
in 2023
Mauritania rank
17th
Tonga rank
20th

Exposure to extreme precipitation — Annual precipitation change over time

  • Mauritania
  • Tonga
-50005001.0k197920012023

How they compare

Tonga currently reports 305.14 Millimetres per year against -30.97 Millimetres per year in Mauritania, a difference of 336.11 Millimetres per year.

That makes Tonga's figure about 9.9 times Mauritania's.

The two have swapped places 13 times across 45 shared years of data; in 1979 it was Mauritania ahead.

Mauritania ranks 17th and Tonga ranks 20th of 18 groups.

Across the 6 decades both report, Mauritania averaged higher in 3 and Tonga in 3.

Head to head by decade

Decade Mauritania Tonga Difference Ahead
1970s 25.12 Millimetres per year -52.98 Millimetres per year 78.11 Millimetres per year Mauritania
1980s -2.82 Millimetres per year -85.47 Millimetres per year 82.65 Millimetres per year Mauritania
1990s 4.72 Millimetres per year -155.35 Millimetres per year 160.06 Millimetres per year Mauritania
2000s -4.06 Millimetres per year 242.84 Millimetres per year 246.89 Millimetres per year Tonga
2010s -3.04 Millimetres per year 338.98 Millimetres per year 342.02 Millimetres per year Tonga
2020s -14.88 Millimetres per year 526.79 Millimetres per year 541.67 Millimetres per year Tonga

Averages of every year both report within each decade.

Frequently asked questions

Which has higher exposure to extreme precipitation — annual precipitation change, Mauritania or Tonga?
Tonga, at 305.14 Millimetres per year against -30.97 Millimetres per year in Mauritania as of 2023.
What is the difference in exposure to extreme precipitation — annual precipitation change between Mauritania and Tonga?
336.11 Millimetres per year, with Tonga ahead.
How many years of comparable data are there for Mauritania and Tonga?
45 years are reported by both, from 1979 to 2023.
How do Mauritania and Tonga rank globally for exposure to extreme precipitation — annual precipitation change?
Mauritania ranks 17th and Tonga ranks 20th of 18 groups.
Where does this data come from?
Organisation for Economic Co-operation and Development, published as Exposure to extreme precipitation — Annual precipitation change. Statizoid refreshes it automatically from the source and publishes the full history for both places.

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Mauritania vs Tonga: Exposure to extreme precipitation — Annual precipitation change. Statizoid, drawing on Organisation for Economic Co-operation and Development. Retrieved 20 August 2026, from https://reference.statizoid.com/compare/exposure-to-extreme-precipitation-annual-precipitation-change/mauritania-2/tonga/

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About this data

Indicator
Exposure to extreme precipitation — Annual precipitation change
Unit
Millimetres per year
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 precipitation by providing the precipitation anomaly and provides a global assessment of extreme precipitation through the use of two precipitation indices, i.e. very heavy precipitation days and frequency of extreme precipitation events. Exposure indicators to extreme precipitation 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 datasets span the period 1979-2022, depending on data availability and are the result of the use of a variety of geospatial data sources as referenced in the Working Paper. 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 precipitation data (ERA5) and Copernicus Climate Change Initiative land cover data. Contact: ENV.Stat@oecd.org Database documentation