Heat Index 35 in Sri Lanka
Sri Lanka: Heat Index 35 was 39.65 in 2024. ◆ Volatile
Heat Index 35 in Sri Lanka, 1960–2024
Source: World Bank, Climate Change Knowledge Portal. https://climateknowledgeportal.worldbank.org.
Analysis
The most recent figure for heat index 35 in Sri Lanka is 39.65, measured in 2024. That is the highest value across all 65 years on record.
Compared with earlier readings it is up 44.1% on the previous year and up 190.1% over ten years.
Over the whole period, heat index 35 in Sri Lanka peaked at 39.65 in 2024 and was at its lowest, 0.06, in 1965.
Sri Lanka ranks 25th of 166 countries on this measure, in the top quarter.
The series is highly variable year to year, so single readings are best treated with caution.
Heat Index 35 in Sri Lanka, year by year
| Year | Value | Change |
|---|---|---|
| 1960 | 0.28 | — |
| 1961 | 0.83 | +196.4% |
| 1962 | 0.76 | -8.4% |
| 1963 | 1.89 | +148.7% |
| 1964 | 4.12 | +118.0% |
| 1965 | 0.06 | -98.5% |
| 1966 | 1.51 | +2416.7% |
| 1967 | 1.44 | -4.6% |
| 1968 | 0.92 | -36.1% |
| 1969 | 4.18 | +354.3% |
| 1970 | 2.71 | -35.2% |
| 1971 | 1.02 | -62.4% |
| 1972 | 0.85 | -16.7% |
| 1973 | 6.9 | +711.8% |
| 1974 | 1.04 | -84.9% |
| 1975 | 1.24 | +19.2% |
| 1976 | 1.74 | +40.3% |
| 1977 | 0.84 | -51.7% |
| 1978 | 2.97 | +253.6% |
| 1979 | 8.41 | +183.2% |
| 1980 | 14.17 | +68.5% |
| 1981 | 5.55 | -60.8% |
| 1982 | 4.68 | -15.7% |
| 1983 | 18.5 | +295.3% |
| 1984 | 3.17 | -82.9% |
| 1985 | 7.31 | +130.6% |
| 1986 | 5.25 | -28.2% |
| 1987 | 9.28 | +76.8% |
| 1988 | 9.92 | +6.9% |
| 1989 | 5.24 | -47.2% |
| 1990 | 5.64 | +7.6% |
| 1991 | 10.52 | +86.5% |
| 1992 | 3.27 | -68.9% |
| 1993 | 7.06 | +115.9% |
| 1994 | 6.92 | -2.0% |
| 1995 | 3.58 | -48.3% |
| 1996 | 7.45 | +108.1% |
| 1997 | 4.52 | -39.3% |
| 1998 | 29.69 | +556.9% |
| 1999 | 1.12 | -96.2% |
| 2000 | 4.19 | +274.1% |
| 2001 | 6.53 | +55.8% |
| 2002 | 5.9 | -9.6% |
| 2003 | 10.52 | +78.3% |
| 2004 | 6.84 | -35.0% |
| 2005 | 15.28 | +123.4% |
| 2006 | 9.01 | -41.0% |
| 2007 | 11.71 | +30.0% |
| 2008 | 5.47 | -53.3% |
| 2009 | 13.96 | +155.2% |
| 2010 | 21.54 | +54.3% |
| 2011 | 7.18 | -66.7% |
| 2012 | 8.9 | +24.0% |
| 2013 | 13.01 | +46.2% |
| 2014 | 13.67 | +5.1% |
| 2015 | 13.74 | +0.5% |
| 2016 | 26.46 | +92.6% |
| 2017 | 22.13 | -16.4% |
| 2018 | 4.1 | -81.5% |
| 2019 | 25.13 | +512.9% |
| 2020 | 19.04 | -24.2% |
| 2021 | 6.46 | -66.1% |
| 2022 | 9.34 | +44.6% |
| 2023 | 27.52 | +194.6% |
| 2024 | 39.65 | +44.1% |
Sri Lanka compared with similar countries
- Sri Lanka's 39.65 is above the median for upper middle income countries, which is 1.66, 23.9× the median. (48 countries reporting)
- Sri Lanka's 39.65 is above the median for South Asia, which is 28.63, 1.4× the median. (6 countries reporting)
Biggest year-on-year movements
Years where Heat Index 35 in Sri Lanka 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.
| Year | Change | From | To |
|---|---|---|---|
| 1966 | +2416.7% | 0.06 | 1.51 |
| 1973 | +711.8% | 0.85 | 6.9 |
Averages by decade
| Decade | Average | Lowest | Highest | Years |
|---|---|---|---|---|
| 1960s | 1.6 | 0.06 | 4.18 | 10 |
| 1970s | 2.77 | 0.84 | 8.41 | 10 |
| 1980s | 8.31 | 3.17 | 18.5 | 10 |
| 1990s | 7.98 | 1.12 | 29.69 | 10 |
| 2000s | 8.94 | 4.19 | 15.28 | 10 |
| 2010s | 15.59 | 4.1 | 26.46 | 10 |
| 2020s | 20.4 | 6.46 | 39.65 | 5 |
Countries ranked near Sri Lanka
More environment data for Sri Lanka
- Historical exposure to drought — Land soil moisture anomaly 5.24 Percentage change (2025)
- Historical exposure to drought — Cropland soil moisture anomaly 5.49 Percentage change (2025)
- Standard Deviation, annual growth rate 0 % change on previous year (2025)
- Standard Deviation 0.207 °C (2025)
- Temperature change 0.849 °C (2025)
- Wood-based panels — Production, annual growth rate 0 % change on previous year (2024)
- Total greenhouse gas emissions excluding LULUCF (Mt CO2e), annual 5.63 % change on previous year (2024)
- Total greenhouse gas emissions excluding LULUCF (Mt CO2e), per unit 0 Mt CO2e per US$ of GDP (2024)
- Total greenhouse gas emissions excluding LULUCF (Mt CO2e), per capita 0 Mt CO2e per person (2024)
- Methane (CH4) emissions from Agriculture (Mt CO2e), annual growth rate 1.22 % change on previous year (2024)
Frequently asked questions
- What is heat index 35 in Sri Lanka?
- Heat index 35 in Sri Lanka was 39.65 in 2024, according to World Bank, Climate Change Knowledge Portal. https://climateknowledgeportal.worldbank.org.
- What is the highest heat index 35 recorded in Sri Lanka?
- The highest recorded value was 39.65 in 2024.
- What is the lowest heat index 35 recorded in Sri Lanka?
- The lowest recorded value was 0.06 in 1965.
- How does Sri Lanka rank for heat index 35?
- Sri Lanka ranks 25th out of 166 countries with data for 2024.
- Is heat index 35 rising or falling in Sri Lanka?
- Over the last ten years it is up 190.1%. The long-run trend across the full record is volatile.
- Where does this Sri Lanka data come from?
- The figures come from World Bank, Climate Change Knowledge Portal. https://climateknowledgeportal.worldbank.org, published as part of Heat Index 35. Statizoid updates them automatically from the source API.
Download this data
CSV · JSON — 65 observations, free to reuse under CC BY 4.0 (World Bank Open Data).
About this data
Total count of days per year where the daily mean Heat Index rose above 35°C. A Heat Index is a measure of how hot it feels once humidity is factored in with air temperature.