Gabon vs Gambia: Standardised Precipitation-Evapotranspiration Index

Gabon
-0.5067
in 2023
Gambia
-0.5534
in 2023
Gabon rank
106th
Gambia rank
108th

Standardised Precipitation-Evapotranspiration Index over time

  • Gabon
  • Gambia
-3-2-1012196019912023

How they compare

Gabon currently reports -0.5067 against -0.5534 in Gambia, a difference of 0.0467.

The two have swapped places 30 times across 64 shared years of data; in 1960 it was Gabon ahead.

Gabon ranks 106th and Gambia ranks 108th of 189 countries.

Across the 7 decades both report, Gabon averaged higher in 5 and Gambia in 2.

Head to head by decade

Decade Gabon Gambia Difference Ahead
1960s 0.4368 0.5108 0.074 Gambia
1970s 0.07 -0.5784 0.6484 Gabon
1980s -0.1023 -0.7709 0.6685 Gabon
1990s -0.1361 -0.7289 0.5928 Gabon
2000s -0.0703 -0.659 0.5887 Gabon
2010s -0.18 -0.4555 0.2755 Gabon
2020s -0.7575 -0.2019 0.5556 Gambia

Averages of every year both report within each decade.

Frequently asked questions

Which has higher standardised precipitation-evapotranspiration index, Gabon or Gambia?
Gabon, at -0.5067 against -0.5534 in Gambia as of 2023.
What is the difference in standardised precipitation-evapotranspiration index between Gabon and Gambia?
0.0467, with Gabon ahead.
How many years of comparable data are there for Gabon and Gambia?
64 years are reported by both, from 1960 to 2023.
How do Gabon and Gambia rank globally for standardised precipitation-evapotranspiration index?
Gabon ranks 106th and Gambia ranks 108th 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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Gabon vs Gambia: Standardised Precipitation-Evapotranspiration Index. Statizoid, drawing on Global SPEI database (SPEIbase). https://spei.csic.es/database.html. Retrieved 18 August 2026, from https://environment.statizoid.com/compare/standardised-precipitation-evapotranspiration-index/gabon/gambia-the/

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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.