Nigeria vs Türkiye: Standardised Precipitation-Evapotranspiration Index

Nigeria
0.3331
in 2023
Türkiye
0.3045
in 2023
Nigeria rank
44th
Türkiye rank
46th

Standardised Precipitation-Evapotranspiration Index over time

  • Nigeria
  • Türkiye
-3-2-1012196019912023

How they compare

Nigeria currently reports 0.3331 against 0.3045 in Türkiye, a difference of 0.0286.

That makes Nigeria's figure about 1.1 times Türkiye's.

The two have swapped places 28 times across 64 shared years of data; in 1960 it was Nigeria ahead.

Nigeria ranks 44th and Türkiye ranks 46th of 189 countries.

Across the 7 decades both report, Nigeria averaged higher in 4 and Türkiye in 3.

Head to head by decade

Decade Nigeria Türkiye Difference Ahead
1960s 0.8109 0.6396 0.1712 Nigeria
1970s 0.1954 -0.0781 0.2736 Nigeria
1980s -0.5787 0.164 0.7427 Türkiye
1990s 0.1184 -0.1802 0.2986 Nigeria
2000s -0.4352 -0.3274 0.1079 Türkiye
2010s -0.4033 0.0908 0.4942 Türkiye
2020s -0.0331 -1.03 0.9947 Nigeria

Averages of every year both report within each decade.

Frequently asked questions

Which has higher standardised precipitation-evapotranspiration index, Nigeria or Türkiye?
Nigeria, at 0.3331 against 0.3045 in Türkiye as of 2023.
What is the difference in standardised precipitation-evapotranspiration index between Nigeria and Türkiye?
0.0286, with Nigeria ahead.
How many years of comparable data are there for Nigeria and Türkiye?
64 years are reported by both, from 1960 to 2023.
How do Nigeria and Türkiye rank globally for standardised precipitation-evapotranspiration index?
Nigeria ranks 44th and Türkiye ranks 46th of 189 countries.
Where does this data come from?
Global SPEI database (SPEIbase). https://spei.csic.es/database.html, published as Standardised Precipitation-Evapotranspiration Index. Statizoid refreshes it automatically from the source and publishes the full history for both places.

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Nigeria vs Türkiye: Standardised Precipitation-Evapotranspiration Index. Statizoid, drawing on Global SPEI database (SPEIbase). https://spei.csic.es/database.html. Retrieved 20 August 2026, from https://environment.statizoid.com/compare/standardised-precipitation-evapotranspiration-index/nigeria/turkiye/

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About this data

Indicator
Standardised Precipitation-Evapotranspiration Index
Source
Global SPEI database (SPEIbase). https://spei.csic.es/database.html
Licence
CC BY 4.0 (World Bank Open Data)
Coverage
189 places, 12,095 data points, 1960–2023
Last refreshed

The SPEI fulfills the requirements of a drought index since its multi-scalar character enables it to be used by different scientific disciplines to detect, monitor, and analyze droughts. Like the sc-PDSI and the SPI, the SPEI can measure drought severity according to its intensity and duration, and can identify the onset and end of drought episodes. The SPEI allows comparison of drought severity through time and space, since it can be calculated over a wide range of climates, as can the SPI.