Riau Mainland Province vs Sao Tome and Principe: Exposure to extreme precipitation — Annual precipitation change

Riau Mainland Province
253.48 Millimetres per year
in 2023
Sao Tome and Principe
168.31 Millimetres per year
in 2023
Riau Mainland Province rank
42nd
Sao Tome and Principe rank
41st

Exposure to extreme precipitation — Annual precipitation change over time

  • Riau Mainland Province
  • Sao Tome and Principe
-50005001.0k197920012023

How they compare

Riau Mainland Province currently reports 253.48 Millimetres per year against 168.31 Millimetres per year in Sao Tome and Principe, a difference of 85.17 Millimetres per year.

That makes Riau Mainland Province's figure about 1.5 times Sao Tome and Principe's.

The two have swapped places 21 times across 45 shared years of data; in 1979 it was Sao Tome and Principe ahead.

Riau Mainland Province ranks 42nd and Sao Tome and Principe ranks 41st of 708 regions.

Across the 6 decades both report, Riau Mainland Province averaged higher in 2 and Sao Tome and Principe in 4.

Head to head by decade

Decade Riau Mainland Province Sao Tome and Principe Difference Ahead
1970s -432.13 Millimetres per year -21.29 Millimetres per year 410.84 Millimetres per year Sao Tome and Principe
1980s -44.41 Millimetres per year 27.25 Millimetres per year 71.67 Millimetres per year Sao Tome and Principe
1990s 20.72 Millimetres per year -88 Millimetres per year 108.72 Millimetres per year Riau Mainland Province
2000s -41.2 Millimetres per year 109.82 Millimetres per year 151.02 Millimetres per year Sao Tome and Principe
2010s -43.79 Millimetres per year 17.27 Millimetres per year 61.06 Millimetres per year Sao Tome and Principe
2020s 251.2 Millimetres per year 173.46 Millimetres per year 77.74 Millimetres per year Riau Mainland Province

Averages of every year both report within each decade.

Frequently asked questions

Which has higher exposure to extreme precipitation — annual precipitation change, Riau Mainland Province or Sao Tome and Principe?
Riau Mainland Province, at 253.48 Millimetres per year against 168.31 Millimetres per year in Sao Tome and Principe as of 2023.
What is the difference in exposure to extreme precipitation — annual precipitation change between Riau Mainland Province and Sao Tome and Principe?
85.17 Millimetres per year, with Riau Mainland Province ahead.
How many years of comparable data are there for Riau Mainland Province and Sao Tome and Principe?
45 years are reported by both, from 1979 to 2023.
How do Riau Mainland Province and Sao Tome and Principe rank globally for exposure to extreme precipitation — annual precipitation change?
Riau Mainland Province ranks 42nd and Sao Tome and Principe ranks 41st of 708 regions.
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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Riau Mainland Province vs Sao Tome and Principe: Exposure to extreme precipitation — Annual precipitation change. Statizoid, drawing on Organisation for Economic Co-operation and Development. Retrieved 10 September 2026, from https://reference.statizoid.com/compare/exposure-to-extreme-precipitation-annual-precipitation-change/riau-mainland-province/sao-tome-and-principe/

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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