Japan vs Thailand: Standardised Precipitation-Evapotranspiration Index

Japan
-0.8352
in 2023
Thailand
-0.7925
in 2023
Japan rank
125th
Thailand rank
123rd

Standardised Precipitation-Evapotranspiration Index over time

  • Japan
  • Thailand
-202196019912023

How they compare

Thailand currently reports -0.7925 against -0.8352 in Japan, a difference of 0.0427.

The two have swapped places 24 times across 64 shared years of data; in 1960 it was Thailand ahead.

Japan ranks 125th and Thailand ranks 123rd of 189 countries.

Across the 7 decades both report, Japan averaged higher in 2 and Thailand in 5.

Head to head by decade

Decade Japan Thailand Difference Ahead
1960s -0.073 0.122 0.1951 Thailand
1970s -0.156 0.5894 0.7454 Thailand
1980s -0.1982 0.1526 0.3508 Thailand
1990s -0.1236 -0.4284 0.3048 Japan
2000s -0.6905 0.3681 1.06 Thailand
2010s 0.0827 0.0583 0.0244 Japan
2020s -0.1762 0.3132 0.4894 Thailand

Averages of every year both report within each decade.

Frequently asked questions

Which has higher standardised precipitation-evapotranspiration index, Japan or Thailand?
Thailand, at -0.7925 against -0.8352 in Japan as of 2023.
What is the difference in standardised precipitation-evapotranspiration index between Japan and Thailand?
0.0427, with Thailand ahead.
How many years of comparable data are there for Japan and Thailand?
64 years are reported by both, from 1960 to 2023.
How do Japan and Thailand rank globally for standardised precipitation-evapotranspiration index?
Japan ranks 125th and Thailand ranks 123rd 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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Japan vs Thailand: 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/japan/thailand/

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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.