Standardised Precipitation-Evapotranspiration Index in Brunei

Brunei: Standardised Precipitation-Evapotranspiration Index was -0.5012 in 2023. ◆ Volatile

Latest (2023)
-0.5012
Change on year
down 126.8%
World rank
105th
of 189 countries
All-time high
1.96
in 2008
All-time low
-1.84
in 1992
Years of data
64
1960–2023

Standardised Precipitation-Evapotranspiration Index in Brunei, 1960–2023

-2-1012196019912023

Source: Global SPEI database (SPEIbase). https://spei.csic.es/database.html.

Analysis

In 2023, standardised precipitation-evapotranspiration index in Brunei stood at -0.5012.

That represents a change of down 126.8% on the previous year and down 184.5% over ten years.

Over the whole period, standardised precipitation-evapotranspiration index in Brunei peaked at 1.96 in 2008 and was at its lowest, -1.84, in 1992.

Brunei ranks 105th of 189 countries on this measure, in the middle of the range.

The series is highly variable year to year, so single readings are best treated with caution.

Standardised Precipitation-Evapotranspiration Index in Brunei, year by year

Annual values for Standardised Precipitation-Evapotranspiration Index in Brunei, 1960 to 2023.
Year Value Change
1960 -0.2312 —
1961 -1.26 +443.5%
1962 0.6511 -151.8%
1963 0.0211 -96.8%
1964 -1.12 -5418.0%
1965 0.3688 -132.9%
1966 -0.0752 -120.4%
1967 -0.3191 +324.3%
1968 -1.16 +262.7%
1969 -1.24 +7.3%
1970 -0.565 -54.5%
1971 0.1689 -129.9%
1972 -1.09 -747.3%
1973 0.4499 -141.2%
1974 0.6051 +34.5%
1975 -0.0424 -107.0%
1976 -0.3585 +745.5%
1977 0.4358 -221.6%
1978 -1.7 -489.5%
1979 0.3613 -121.3%
1980 0.4515 +25.0%
1981 1.14 +153.5%
1982 -0.8621 -175.3%
1983 -0.3142 -63.6%
1984 1.78 -667.7%
1985 0.1816 -89.8%
1986 0.5248 +189.0%
1987 -1.19 -327.2%
1988 1.58 -232.3%
1989 -0.5357 -134.0%
1990 -1.51 +181.9%
1991 -1.32 -12.3%
1992 -1.84 +38.7%
1993 -1.43 -22.3%
1994 -0.9743 -31.8%
1995 0.2665 -127.4%
1996 0.9005 +237.9%
1997 -1.35 -250.4%
1998 -1.22 -9.6%
1999 1.66 -235.6%
2000 1.13 -32.0%
2001 0.4658 -58.8%
2002 -1.48 -418.2%
2003 -0.4716 -68.2%
2004 -1.37 +189.7%
2005 -0.0177 -98.7%
2006 0.8439 -4867.8%
2007 1.02 +21.4%
2008 1.96 +91.4%
2009 1.12 -42.6%
2010 1.55 +37.6%
2011 1.51 -2.6%
2012 0.2511 -83.3%
2013 0.5929 +136.1%
2014 0.001 -99.8%
2015 -1.12 -112170.0%
2016 -1.76 +57.4%
2017 1.3 -173.5%
2018 0.7998 -38.4%
2019 -0.9146 -214.4%
2020 0.8384 -191.7%
2021 0.8633 +3.0%
2022 1.87 +116.6%
2023 -0.5012 -126.8%

Brunei compared with similar countries

  • Brunei's -0.5012 is below the median for high income countries, which is -0.3666, 1.4× the median. (63 countries reporting)
  • Brunei's -0.5012 is below the median for East Asia & Pacific, which is 0.0249. (27 countries reporting)

Biggest year-on-year movements

Years where Standardised Precipitation-Evapotranspiration Index in Brunei changed far more than this series normally does. A large move can be a real event or a change in how the figure was measured — the source note below says who published it.

YearChange FromTo
2015 -112170.0% 0.001 -1.12
1964 -5418.0% 0.0211 -1.12
2006 +4867.8% -0.0177 0.8439

Averages by decade

DecadeAverage LowestHighest Years
1960s -0.4362 -1.26 0.6511 10
1970s -0.1736 -1.7 0.6051 10
1980s 0.2759 -1.19 1.78 10
1990s -0.6827 -1.84 1.66 10
2000s 0.3211 -1.48 1.96 10
2010s 0.2197 -1.76 1.55 10
2020s 0.7677 -0.5012 1.87 4

Countries ranked near Brunei

  1. 102 Guyana -0.4719 compare
  2. 103 Belarus -0.4865 compare
  3. 104 Lesotho -0.4991 compare
  4. 106 Gabon -0.5067 compare
  5. 107 El Salvador -0.5258 compare
  6. 108 Gambia -0.5534 compare

See the full ranking of 189 places →

More environment data for Brunei

All data for Brunei →

Frequently asked questions

What is standardised precipitation-evapotranspiration index in Brunei?
Standardised precipitation-evapotranspiration index in Brunei was -0.5012 in 2023, according to Global SPEI database (SPEIbase). https://spei.csic.es/database.html.
What is the highest standardised precipitation-evapotranspiration index recorded in Brunei?
The highest recorded value was 1.96 in 2008.
What is the lowest standardised precipitation-evapotranspiration index recorded in Brunei?
The lowest recorded value was -1.84 in 1992.
How does Brunei rank for standardised precipitation-evapotranspiration index?
Brunei ranks 105th out of 189 countries with data for 2023.
Is standardised precipitation-evapotranspiration index rising or falling in Brunei?
Over the last ten years it is down 184.5%. The long-run trend across the full record is volatile.
Where does this Brunei data come from?
The figures come from Global SPEI database (SPEIbase). https://spei.csic.es/database.html, published as part of Standardised Precipitation-Evapotranspiration Index. Statizoid updates them automatically from the source API.

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Standardised Precipitation-Evapotranspiration Index in Brunei. Statizoid, drawing on Global SPEI database (SPEIbase). https://spei.csic.es/database.html. Retrieved 02 October 2026, from https://environment.statizoid.com/stat/standardised-precipitation-evapotranspiration-index/brunei-darussalam/

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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.