Tanzania vs Zambia: Tropical nights

Tropical nights in 2014: 106.3 nights in Tanzania and 62.9 nights in Zambia, in the CMIP6 climate models’ median run. In 2014 the value was higher in Tanzania, by 43.4 nights, or 1.69 times that in Zambia.

Watch it change on the map

nights a year · CMIP6

TanzaniaZambiaCMIP6 model median (SSP2-4.5, middle of the road)models’ 10th–90th percentile

What the numbers say

Tanzania has been higher in every year both have figures for since 1950.
The CMIP6 model median (SSP2-4.5, middle of the road) puts Tanzania at 208 nights and Zambia at 171.5 nights in 2100.

Every year

nights a year · CMIP6

Year	Tanzania	Zambia
2014	106.3	62.9
2013	105.5	64.7
2012	108.4	63.9
2011	109	61.5
2010	103.9	59.3
2009	101.1	57.5
2008	100.3	56
2007	99.5	55.1
2006	100.4	55.9
2005	98.7	54.5
2004	100.4	58.4
2003	99.6	56.6
2002	98.4	55
2001	101.5	59
2000	94.9	52.9
1999	94.2	48
1998	96.8	51.3
1997	93.5	47.8
1996	89.6	43.5
1995	88.5	43.9
1994	85.4	41.6
1993	81.2	35.3
1992	80.1	36
1991	89.6	42.7
1990	91.1	46.4
1989	89.1	45
1988	87.6	43.6
1987	88.5	44
1986	89.4	43.8
1985	83	38.7
1984	83.1	38.7
1983	82.1	38.8
1982	84.8	40
1981	88	41.7
1980	85	39.7
1979	85.5	40.7
1978	82.9	38.9
1977	84.1	40
1976	81	35.7
1975	80.8	37.1
1974	82.2	37.4
1973	83.6	38.8
1972	81.4	35
1971	80.7	36
1970	81.8	38.1
1969	79.5	37.1
1968	79.1	34.1
1967	77.5	32.2
1966	78.1	33.1
1965	78	34.9
1964	73.8	31.3
1963	73.1	30.5
1962	81.1	38.8
1961	82.6	37
1960	83.9	39.3
1959	81.4	38.3
1958	82.1	39
1957	80.9	37.8
1956	80	34.6
1955	81.6	38.2
1954	81.4	38
1953	80.6	35.4
1952	81.4	37.6
1951	82.1	36.9
1950	80.7	36

CMIP6 model median (SSP2-4.5, middle of the road) · 2015–2100

Year	Tanzania	Zambia
2015	114.895.2–137.4	72.150.1–93.9
2016	108.391.6–125.6	66.845.9–85.7
2017	114.893.6–137.8	71.449.7–92.5
2018	116.497.4–137.1	73.852.7–94.8
2019	113.495.2–133.2	73.354–97.6
2020	119.396.2–143.5	77.556.9–100.4
2021	119.5100.9–147.1	76.755.7–104.5
2022	124.4105.3–147.4	84.861.6–109.7
2023	122.1102.1–147.8	84.763–108
2024	126.2100–150.1	85.158.2–113.9
2025	124.6100.9–154	84.957.1–116
2026	126.999.1–155.6	83.658.4–119.4
2027	128102.9–147.7	89.562.5–115.7
2028	129.9106.4–152.1	89.965–118.6
2029	134.1111–156.5	9669.8–122.8
2030	129.4106.4–151.1	9166.7–118.1
2031	136.4115.9–158.4	97.668.2–121.3
2032	135.1114–166.8	94.970.3–122.2
2033	135.2110.9–161.9	98.270.1–123.6
2034	134.7112.5–166.3	97.370.4–135.2
2035	140.2114.6–165	104.168.4–137.8
2036	137.8113.3–165.5	99.568.7–131.5
2037	142.9121.5–168.9	107.177.4–139.8
2038	147.9124.3–169.3	110.383.2–138.8
2039	144.3117.6–171.3	101.874.3–139.1
2040	140.5117–178	100.872.5–145.3
2041	149.1121.7–175.6	113.978.7–147.6
2042	146.3120.5–185.3	111.379.1–155.1
2043	144.6117–173	106.678.3–150.6
2044	147.7121.2–175.8	110.574.3–145.5
2045	150.1125.2–183.4	109.882.2–148.2
2046	161.5128.6–192.2	119.485.9–160
2047	160.2129.7–194.4	123.191.1–159.4
2048	158.8132.7–193.1	124.590.6–160.2
2049	157.6131.1–196	124.586.1–167.1
2050	159.7127.8–192	130.592–166
2051	163.2135.5–197.8	128.498.1–169.8
2052	161.9136.2–199.1	130.798.6–170.4
2053	160.6127.5–197.7	128.488–168.8
2054	163.2131.5–200.2	132.193–169.6
2055	167.4137–208.3	132.1100.1–176.1
2056	166.4130.8–209.7	132.492.7–179.6
2057	168134.6–208.3	133.298.5–178.5
2058	168.7134.9–210.3	137.299.2–179.7
2059	174.7144.9–219.5	139.8105.8–189.5
2060	181.7138.1–219.8	145.4102.9–191
2061	171.8135.5–218.1	136.692.8–196.9
2062	177.5139.9–224	143.9101–194.7
2063	181.4140.1–213.8	144.5101.7–187.8
2064	185.3140.1–215.2	147.998.4–180.9
2065	183.5141.1–221.8	148.6104.3–199.8
2066	181.9146.3–219.3	152.1109.4–193.6
2067	178.8138.8–229.2	140.6103.2–195.7
2068	186144.2–228.4	150.8105.7–200.3
2069	183.7141.7–225.3	150.5106.3–197
2070	180.7140.4–228.2	145.8104.7–202.4
2071	184.9146.9–235.2	153.1112.7–212
2072	191.3155–226.1	157.2120–195.7
2073	191.6152.4–235.6	161.5115.2–210.9
2074	183.3149.7–231.7	149.2115–198.7
2075	183.8144.8–233	148.2111.5–202.2
2076	191.1150.9–233.2	150.4112–201.9
2077	191.3152.6–238.2	156.5120.3–208.3
2078	189156.6–233.8	157.2122.2–209.5
2079	190.5147–237.3	156.8118.1–207.3
2080	197.3150.7–241.2	159.8116–211.9
2081	195.6153.4–237.4	160.2117.1–208.6
2082	194.5157.3–237.3	159.6119.6–200.6
2083	193.2151–249.8	159.5110.7–219.9
2084	201.1152.2–246.7	166124.3–210.3
2085	204.2162.3–252.3	172.9126.8–221.1
2086	195156–248.7	161.9120.6–224.1
2087	196.7160.8–244.5	158.3129.2–219.6
2088	208.4154.7–246.9	168.4123.9–218.5
2089	201.3158.6–248.2	168.5129.9–217.9
2090	197.9160.7–253.6	165.7124–223.8
2091	210161.6–256	177.4129.5–227.2
2092	205.8158.3–253.6	170.6127.8–221.5
2093	207.2161.2–251.9	173.6123.6–223.3
2094	207.9161.3–250.6	171.4130.3–220.7
2095	214.2166.4–258.5	179131.6–228.6
2096	205.3159.8–257.4	170.8124.8–233.3
2097	206.6158.4–256.8	167.2122.2–224.3
2098	209.1161–258.3	172.5131.9–226.9
2099	208.5160.1–256	171.7126.5–229.1
2100	208158.6–258.6	171.5124.3–228

Each country on its own

Good to know

Nights in a year when the temperature stays above 20 °C, averaged over the country.
Source: World Bank Climate Change Knowledge Portal, CMIP6 multi-model median.
The dashed line is the CMIP6 model median (SSP2-4.5, middle of the road), a scenario rather than a forecast; the band is its models’ 10th–90th percentile.
Climate model values are the median of the CMIP6 models, run on past emissions to 2014 and on SSP2-4.5, a middle-of-the-road path, after: they are not measurements.

How the layers work, where their data comes from and what they can’t tell you: Countries through time

Tanzania vs Zambia: Tropical nights

What the numbers say

Every year

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