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Has the climate in Cape Town changed?

Cape Town has warmed about 1°F between 1976 and 2024.

About 0.2°F per decade, measured from Cape Town's official daily weather records, 1976–2024. Individual years still bounce around — some recent ones came in cool — but the long-term line has clearly risen.

Is that a lot? Cape Town's warming is broadly in line with other cities in South Africa — neither unusually fast nor unusually slow.

What has actually changed

Each card compares the 1970s (the first ten years of the record) with recent years (the last ten) — the same span the headline and the chart use.

Freezing nights
about the same
1970s
0 / yr
Recent
0 / yr
Winters about as cold as before
Average temperature
+0.7°F
1970s
62.2°F
Recent
62.9°F
A steady upward drift
Hot days above 90°F
5 more days
1970s
8 / yr
Recent
13 / yr
More days of serious heat
Rainy days
22 fewer days
1970s
82 / yr
Recent
60 / yr
Drier on average

Cape Town's temperature, year by year

Average temperature for each year from 1976 to 2024.

59°61°63°65°1976: 61.6°F1977: 62.4°F1978: 62.3°F1979: 62.6°F1980: 62.5°F1981: 61.9°F1982: 61.2°F1983: 61.8°F1984: 63.1°F1985: 63.0°F1986: 63.1°F1987: 62.6°F1988: 62.0°F1989: 61.7°F1990: 61.4°F1991: 61.5°F1992: 61.4°F1993: 62.2°F1994: 61.6°F1995: 61.3°F1996: 60.6°F1997: 61.8°F1998: 61.9°F1999: 63.1°F2000: 62.6°F2001: 62.2°F2002: 61.8°F2003: 62.2°F2004: 62.6°F2005: 62.1°F2006: 62.4°F2007: 62.5°F2008: 62.5°F2009: 63.2°F2010: 62.7°F2011: 62.5°F2012: 62.6°F2013: 62.7°F2014: 63.3°F2015: 63.0°F2016: 63.3°F2017: 62.6°F2018: 62.9°F2019: 63.0°F2020: 62.3°F2021: 62.5°F2022: 63.3°F2023: 62.6°F2024: 63.2°Flong-term trend1976198019902000201020202024
a warmer-than-average year a cooler-than-average year

Each bar is one year. Most recent years sit above the older ones. Some recent years still came in cool — warming is a slope, not a straight climb.

In day-to-day terms, that long-term shift shows up as about 5 more days above 90°F compared with the 1970s.

When in the year the change shows up

How much warmer each month is now than in the 1970s. Useful if you garden or care about a particular season — otherwise the headline above already has the answer.

-1.0°-0.5°0.0°+0.5°+1.0°+1.5°January: +1.4°F+1.4JFebruary: +0.8°F+0.8FMarch: +1.0°F+1.0MApril: -0.1°F-0.1AMay: +0.3°F+0.3MJune: -0.3°F-0.3JJuly: -0.5°F-0.5JAugust: -0.8°F-0.8ASeptember: -0.1°F-0.1SOctober: +1.0°F+1.0ONovember: -0.5°F-0.5NDecember: +1.1°F+1.1D

January has warmed the most — about 1.4°F. The warming runs across the whole year, not just one season.

Methodology & sources

Temperature — 1991–2020 normals computed from 25 years of daily observations at Cape Town Intl, a weather station, about 17 km from the city centre. The underlying daily records come from NOAA's global station network.

How we build these numbers →