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Cape Town, South Africa climate
Csa Hot-summer Mediterranean
Cape Town has a mildly seasonal mild-temperate climate (Hot-summer Mediterranean, Köppen Csa). The hottest month is February with an average daily high near 28°C, while the coldest is July averaging around 7°C at night. Precipitation totals about 509 mm a year and is strongly seasonal — June alone averages 90 mm while January barely receives 6 mm.
Temperature & precipitation
Daily high–low temperature range with the monthly average, plus monthly precipitation · 1991–2020 normals · hover a month for the exact figuresClear vs cloudy days
Share of days each month that are clear, partly cloudy or cloudy · 1991–2020 · hover a month for the day countsCape Town climate normals (1991–2020)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°C) | 28 | 28 | 27 | 25 | 21 | 19 | 18 | 19 | 20 | 23 | 25 | 27 |
| Avg temp (°C) | 22 | 22 | 21 | 18 | 16 | 13 | 13 | 13 | 15 | 17 | 19 | 21 |
| Avg low (°C) | 16 | 16 | 15 | 12 | 10 | 7 | 7 | 7 | 9 | 11 | 13 | 15 |
| Precipitation (mm) | 6 | 16 | 18 | 57 | 81 | 90 | 79 | 59 | 31 | 41 | 19 | 12 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Avg high (°C) | 28 | 28 | 27 | 25 | 21 | 19 |
| Avg temp (°C) | 22 | 22 | 21 | 18 | 16 | 13 |
| Avg low (°C) | 16 | 16 | 15 | 12 | 10 | 7 |
| Precipitation (mm) | 6 | 16 | 18 | 57 | 81 | 90 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Avg high (°C) | 18 | 19 | 20 | 23 | 25 | 27 |
| Avg temp (°C) | 13 | 13 | 15 | 17 | 19 | 21 |
| Avg low (°C) | 7 | 7 | 9 | 11 | 13 | 15 |
| Precipitation (mm) | 79 | 59 | 31 | 41 | 19 | 12 |
How often — frequency of weather events
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Days with measurable rain (days) | 3 | 3 | 3 | 6 | 8 | 11 | 9 | 10 | 8 | 5 | 5 | 3 |
| Days with high ≥ 32°C (days) | 3 | 4 | 2 | 2 | 0.2 | — | — | — | 0.3 | 0.9 | 0.9 | 2 |
| Days with low ≤ 0°C (days) | — | — | — | 0.0 | 0.1 | 0.1 | 0.1 | 0.2 | — | 0.1 | — | — |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Days with measurable rain (days) | 3 | 3 | 3 | 6 | 8 | 11 |
| Days with high ≥ 32°C (days) | 3 | 4 | 2 | 2 | 0.2 | — |
| Days with low ≤ 0°C (days) | — | — | — | 0.0 | 0.1 | 0.1 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Days with measurable rain (days) | 9 | 10 | 8 | 5 | 5 | 3 |
| Days with high ≥ 32°C (days) | — | — | 0.3 | 0.9 | 0.9 | 2 |
| Days with low ≤ 0°C (days) | 0.1 | 0.2 | — | 0.1 | — | — |
Sky & atmosphere
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Cloud cover (%) | 26 | 26 | 28 | 33 | 41 | 42 | 38 | 42 | 42 | 37 | 35 | 30 |
| Clear days (≤ 30% cloud) | 21 | 19 | 20 | 16 | 13 | 12 | 15 | 12 | 12 | 15 | 15 | 19 |
| Partly cloudy days (30–70%) | 8 | 8 | 9 | 9 | 11 | 12 | 10 | 12 | 12 | 11 | 10 | 9 |
| Cloudy days (≥ 70%) | 2 | 2 | 3 | 5 | 6 | 6 | 6 | 7 | 7 | 5 | 5 | 3 |
| Relative humidity (%) | 65 | 66 | 68 | 71 | 76 | 80 | 82 | 82 | 81 | 76 | 71 | 67 |
| Wind speed (mph) | 9.7 | 9.3 | 8.4 | 7.4 | 6.8 | 7.3 | 7.1 | 7.2 | 7.5 | 8.2 | 8.9 | 9.3 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 26 | 26 | 28 | 33 | 41 | 42 |
| Clear days (≤ 30% cloud) | 21 | 19 | 20 | 16 | 13 | 12 |
| Partly cloudy days (30–70%) | 8 | 8 | 9 | 9 | 11 | 12 |
| Cloudy days (≥ 70%) | 2 | 2 | 3 | 5 | 6 | 6 |
| Relative humidity (%) | 65 | 66 | 68 | 71 | 76 | 80 |
| Wind speed (mph) | 9.7 | 9.3 | 8.4 | 7.4 | 6.8 | 7.3 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Cloud cover (%) | 38 | 42 | 42 | 37 | 35 | 30 |
| Clear days (≤ 30% cloud) | 15 | 12 | 12 | 15 | 15 | 19 |
| Partly cloudy days (30–70%) | 10 | 12 | 12 | 11 | 10 | 9 |
| Cloudy days (≥ 70%) | 6 | 7 | 7 | 5 | 5 | 3 |
| Relative humidity (%) | 82 | 82 | 81 | 76 | 71 | 67 |
| Wind speed (mph) | 7.1 | 7.2 | 7.5 | 8.2 | 8.9 | 9.3 |
Methodology & sources
Temperature & precipitation — 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.
Cloud, humidity, wind & sunshine — modelled estimates from NASA POWER, NASA's satellite-and-reanalysis climatology. This is the standard global source for atmospheric variables, which are not measured at most weather stations.