Autumn temperature anomalies in Sierra Leone
Sierra Leone: Autumn temperature anomalies was 0.8152 °C in 2026. ◆ Volatile
Autumn temperature anomalies in Sierra Leone, 1940–2026
Source: Contains modified Copernicus Climate Change Service information (2026) – with major processing by Our World in Data. Measured in °C.
Analysis
The most recent figure for autumn temperature anomalies in Sierra Leone is 0.8152 °C, measured in 2026.
Compared with earlier readings it is up 520.4% on the previous year and up 147.6% over ten years.
Over the whole period, autumn temperature anomalies in Sierra Leone peaked at 0.9684 °C in 2023 and was at its lowest, -1.46 °C, in 1943.
That places Sierra Leone 117th out of 193 countries with data for 2026, putting it in the middle of the range.
The series is highly variable year to year, so single readings are best treated with caution.
Autumn temperature anomalies in Sierra Leone, year by year
| Year | °C | Change |
|---|---|---|
| 1940 | -0.61 °C | — |
| 1941 | -1.1 °C | +80.7% |
| 1942 | -0.9573 °C | -13.2% |
| 1943 | -1.46 °C | +52.6% |
| 1944 | -1.14 °C | -21.9% |
| 1945 | -0.601 °C | -47.4% |
| 1946 | -1.15 °C | +91.9% |
| 1947 | -1.1 °C | -4.7% |
| 1948 | -1.01 °C | -7.8% |
| 1949 | -0.8311 °C | -18.0% |
| 1950 | -1.11 °C | +34.0% |
| 1951 | -0.6032 °C | -45.8% |
| 1952 | -1.42 °C | +136.0% |
| 1953 | -0.4622 °C | -67.5% |
| 1954 | -1.07 °C | +131.4% |
| 1955 | -1.13 °C | +5.5% |
| 1956 | -1.29 °C | +14.0% |
| 1957 | -1.02 °C | -21.0% |
| 1958 | -0.8423 °C | -17.1% |
| 1959 | -0.9536 °C | +13.2% |
| 1960 | -1.03 °C | +7.9% |
| 1961 | -0.9003 °C | -12.5% |
| 1962 | -0.8397 °C | -6.7% |
| 1963 | -0.3656 °C | -56.5% |
| 1964 | -1.41 °C | +285.9% |
| 1965 | -0.6681 °C | -52.7% |
| 1966 | -0.8002 °C | +19.8% |
| 1967 | -0.9651 °C | +20.6% |
| 1968 | -0.4478 °C | -53.6% |
| 1969 | -0.6619 °C | +47.8% |
| 1970 | -0.5121 °C | -22.6% |
| 1971 | -0.8469 °C | +65.4% |
| 1972 | 0.1739 °C | -120.5% |
| 1973 | -0.1123 °C | -164.6% |
| 1974 | -0.7563 °C | +573.5% |
| 1975 | -0.8409 °C | +11.2% |
| 1976 | -0.2354 °C | -72.0% |
| 1977 | -0.2385 °C | +1.3% |
| 1978 | -0.5223 °C | +119.0% |
| 1979 | 0.1866 °C | -135.7% |
| 1980 | 0.2043 °C | +9.5% |
| 1981 | -0.1376 °C | -167.3% |
| 1982 | 0.2937 °C | -313.5% |
| 1983 | 0.0413 °C | -85.9% |
| 1984 | -0.1739 °C | -520.6% |
| 1985 | -0.4952 °C | +184.8% |
| 1986 | -0.4835 °C | -2.4% |
| 1987 | 0.2286 °C | -147.3% |
| 1988 | -0.1759 °C | -177.0% |
| 1989 | -0.0576 °C | -67.3% |
| 1990 | 0.0904 °C | -256.9% |
| 1991 | 0.1844 °C | +104.1% |
| 1992 | -0.3647 °C | -297.8% |
| 1993 | -0.0441 °C | -87.9% |
| 1994 | -0.4462 °C | +911.1% |
| 1995 | 0.0453 °C | -110.2% |
| 1996 | -0.3108 °C | -786.0% |
| 1997 | 0.2052 °C | -166.0% |
| 1998 | -0.2449 °C | -219.3% |
| 1999 | -0.4392 °C | +79.3% |
| 2000 | -0.2424 °C | -44.8% |
| 2001 | -0.252 °C | +4.0% |
| 2002 | -0.0247 °C | -90.2% |
| 2003 | -0.0448 °C | +81.6% |
| 2004 | 0.0222 °C | -149.6% |
| 2005 | 0.3647 °C | +1541.3% |
| 2006 | 0.0665 °C | -81.8% |
| 2007 | -0.0947 °C | -242.4% |
| 2008 | -0.0631 °C | -33.4% |
| 2009 | 0.0427 °C | -167.7% |
| 2010 | -0.3977 °C | -1032.3% |
| 2011 | 0.0753 °C | -118.9% |
| 2012 | -0.3371 °C | -547.6% |
| 2013 | 0.0835 °C | -124.8% |
| 2014 | -0.1102 °C | -232.0% |
| 2015 | 0.3056 °C | -377.2% |
| 2016 | 0.3292 °C | +7.7% |
| 2017 | 0.6205 °C | +88.5% |
| 2018 | 0.2549 °C | -58.9% |
| 2019 | 0.5243 °C | +105.7% |
| 2020 | 0.2924 °C | -44.2% |
| 2021 | 0.5755 °C | +96.8% |
| 2022 | 0.0707 °C | -87.7% |
| 2023 | 0.9684 °C | +1269.7% |
| 2024 | 0.3255 °C | -66.4% |
| 2025 | 0.1314 °C | -59.6% |
| 2026 | 0.8152 °C | +520.4% |
Sierra Leone compared with similar countries
- Sierra Leone's 0.8152 °C is below the median for low income countries, which is 0.9411 °C, 87% of the median. (25 countries reporting)
- Sierra Leone's 0.8152 °C is above the median for Sub-Saharan Africa, which is 0.7511 °C, 1.1× the median. (48 countries reporting)
Biggest year-on-year movements
Years where Autumn temperature anomalies in Sierra Leone 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 |
|---|---|---|---|
| 2005 | +1541.3% | 0.0222 °C | 0.3647 °C |
| 2023 | +1269.7% | 0.0707 °C | 0.9684 °C |
| 2010 | -1032.3% | 0.0427 °C | -0.3977 °C |
| 1994 | -911.1% | -0.0441 °C | -0.4462 °C |
| 1996 | -786.0% | 0.0453 °C | -0.3108 °C |
Averages by decade
| Decade | Average | Lowest | Highest | Years |
|---|---|---|---|---|
| 1940s | -0.997 °C | -1.46 °C | -0.601 °C | 10 |
| 1950s | -0.9899 °C | -1.42 °C | -0.4622 °C | 10 |
| 1960s | -0.8088 °C | -1.41 °C | -0.3656 °C | 10 |
| 1970s | -0.3704 °C | -0.8469 °C | 0.1866 °C | 10 |
| 1980s | -0.0756 °C | -0.4952 °C | 0.2937 °C | 10 |
| 1990s | -0.1325 °C | -0.4462 °C | 0.2052 °C | 10 |
| 2000s | -0.0226 °C | -0.252 °C | 0.3647 °C | 10 |
| 2010s | 0.1348 °C | -0.3977 °C | 0.6205 °C | 10 |
| 2020s | 0.4542 °C | 0.0707 °C | 0.9684 °C | 7 |
Countries ranked near Sierra Leone
More reference data data for Sierra Leone
- Emission Totals - Indirect emissions (N2O) - Manure applied to Soils 0.0238 (2050)
- Emission Totals - Indirect emissions (N2O) - Manure left on Pasture 0.4498 (2050)
- Emission Totals - Indirect emissions (N2O) - IPCC Agriculture 0.5935 (2050)
- Emission Totals - Indirect emissions (N2O) - Crop Residues 0.12 (2050)
- Emission Totals - Indirect emissions (N2O) - Agricultural Soils 0.5935 (2050)
- Emission Totals - Emissions (N2O) - Manure applied to Soils 0.0797 (2050)
- Emission Totals - Emissions (N2O) - Manure Management 0.044 (2050)
- Emission Totals - Emissions (N2O) - Manure left on Pasture 1.91 (2050)
- Emission Totals - Emissions (N2O) - IPCC Agriculture 2.72 (2050)
- Emission Totals - Emissions (N2O) - Crop Residues 0.6534 (2050)
Frequently asked questions
- What is autumn temperature anomalies in Sierra Leone?
- Autumn temperature anomalies in Sierra Leone was 0.8152 °C in 2026, according to Contains modified Copernicus Climate Change Service information (2026) – with major processing by Our World in Data.
- What is the highest autumn temperature anomalies recorded in Sierra Leone?
- The highest recorded value was 0.9684 °C in 2023.
- What is the lowest autumn temperature anomalies recorded in Sierra Leone?
- The lowest recorded value was -1.46 °C in 1943.
- How does Sierra Leone rank for autumn temperature anomalies?
- Sierra Leone ranks 117th out of 193 countries with data for 2026.
- Is autumn temperature anomalies rising or falling in Sierra Leone?
- Over the last ten years it is up 147.6%. The long-run trend across the full record is volatile.
- Where does this Sierra Leone data come from?
- The figures come from Contains modified Copernicus Climate Change Service information (2026) – with major processing by Our World in Data, published as part of Autumn temperature anomalies. Statizoid updates them automatically from the source API.
Download this data
CSV · JSON — 87 observations, free to reuse under CC BY 4.0 (Our World in Data).
About this data
Difference in a specific month's average surface temperature from the mean temperature of the same month during the period 1991-2020, measured in degrees Celsius.