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Atlanta vs Cape Town
Comparing Atlanta change · Cape Town change
Atlanta and Cape Town have nearly identical year-round temperatures; Atlanta is the wetter, with 30 in more rain a year, and Cape Town the sunnier.
How the seasons compare
The differences between Atlanta and Cape Town, in everyday terms.
Summers
Atlanta has much hotter summers
Atlanta: Hot
Cape Town: Warm
Winters
Cape Town has milder winters
Atlanta: Chilly
Cape Town: Cool
Rain & snow
Atlanta is much wetter
Atlanta: Wet
Cape Town: Fairly dry
Sky
Cape Town is sunnier
Atlanta: Partly cloudy
Cape Town: Fairly sunny
Month-by-month charts
Temperature
Atlanta and Cape Town run remarkably close all year.
Precipitation
Atlanta is the wetter — about 30 in more across the year.
Clear skies
Cape Town has the clearer skies — the higher line.
Exact monthly numbers
Tap a metric to open its full table. Desktop shows all twelve months; on a phone each metric splits into Jan–Jun and Jul–Dec.
Avg high (°F) Varies through the year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Atlanta | 54 | 58 | 66 | 74 | 81 | 87 | 90 | 89 | 84 | 74 | 64 | 56 |
| Cape Town | 82 | 83 | 81 | 76 | 71 | 66 | 65 | 66 | 68 | 74 | 76 | 80 |
| Difference | +28 | +24 | +15 | +2 | -10 | -21 | -25 | -23 | -16 | -1 | +12 | +24 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Atlanta | 54 | 58 | 66 | 74 | 81 | 87 |
| Cape Town | 82 | 83 | 81 | 76 | 71 | 66 |
| Difference | +28 | +24 | +15 | +2 | -10 | -21 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Atlanta | 90 | 89 | 84 | 74 | 64 | 56 |
| Cape Town | 65 | 66 | 68 | 74 | 76 | 80 |
| Difference | -25 | -23 | -16 | -1 | +12 | +24 |
Avg low (°F) Varies through the year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Atlanta | 36 | 39 | 45 | 53 | 61 | 69 | 72 | 71 | 66 | 55 | 44 | 38 |
| Cape Town | 62 | 61 | 58 | 53 | 49 | 45 | 44 | 45 | 48 | 52 | 55 | 59 |
| Difference | +26 | +22 | +13 | — | -12 | -24 | -28 | -26 | -18 | -3 | +11 | +21 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Atlanta | 36 | 39 | 45 | 53 | 61 | 69 |
| Cape Town | 62 | 61 | 58 | 53 | 49 | 45 |
| Difference | +26 | +22 | +13 | — | -12 | -24 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Atlanta | 72 | 71 | 66 | 55 | 44 | 38 |
| Cape Town | 44 | 45 | 48 | 52 | 55 | 59 |
| Difference | -28 | -26 | -18 | -3 | +11 | +21 |
Precipitation (in) Atlanta runs higher most of the year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Atlanta | 4.6 | 4.6 | 4.7 | 3.8 | 3.6 | 4.5 | 4.8 | 4.3 | 3.8 | 3.3 | 4 | 4.6 |
| Cape Town | 0.2 | 0.6 | 0.7 | 2.3 | 3.2 | 3.5 | 3.1 | 2.3 | 1.2 | 1.6 | 0.7 | 0.5 |
| Difference | -4.4 | -3.9 | -4 | -1.6 | -0.4 | -1 | -1.6 | -2 | -2.6 | -1.7 | -3.2 | -4.1 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Atlanta | 4.6 | 4.6 | 4.7 | 3.8 | 3.6 | 4.5 |
| Cape Town | 0.2 | 0.6 | 0.7 | 2.3 | 3.2 | 3.5 |
| Difference | -4.4 | -3.9 | -4 | -1.6 | -0.4 | -1 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Atlanta | 4.8 | 4.3 | 3.8 | 3.3 | 4 | 4.6 |
| Cape Town | 3.1 | 2.3 | 1.2 | 1.6 | 0.7 | 0.5 |
| Difference | -1.6 | -2 | -2.6 | -1.7 | -3.2 | -4.1 |
Snowfall (in)
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Atlanta | 1 | 0.4 | 0.4 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0.4 |
| Cape Town | — | — | — | — | — | — | — | — | — | — | — | — |
| Difference | — | — | — | — | — | — | — | — | — | — | — | — |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Atlanta | 1 | 0.4 | 0.4 | 0 | 0 | 0 |
| Cape Town | — | — | — | — | — | — |
| Difference | — | — | — | — | — | — |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Atlanta | 0 | 0 | 0 | 0 | 0 | 0.4 |
| Cape Town | — | — | — | — | — | — |
| Difference | — | — | — | — | — | — |
Cloud cover (%) Atlanta runs higher most of the year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Atlanta | 58 | 61 | 58 | 53 | 53 | 57 | 57 | 55 | 49 | 44 | 49 | 59 |
| Cape Town | 26 | 26 | 28 | 33 | 41 | 42 | 38 | 42 | 42 | 37 | 35 | 30 |
| Difference | -32 | -35 | -30 | -20 | -13 | -15 | -19 | -13 | -7 | -7 | -14 | -29 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Atlanta | 58 | 61 | 58 | 53 | 53 | 57 |
| Cape Town | 26 | 26 | 28 | 33 | 41 | 42 |
| Difference | -32 | -35 | -30 | -20 | -13 | -15 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Atlanta | 57 | 55 | 49 | 44 | 49 | 59 |
| Cape Town | 38 | 42 | 42 | 37 | 35 | 30 |
| Difference | -19 | -13 | -7 | -7 | -14 | -29 |
Relative humidity (%) Varies through the year
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Atlanta | 83 | 83 | 81 | 78 | 75 | 73 | 70 | 70 | 71 | 72 | 76 | 82 |
| Cape Town | 65 | 66 | 68 | 71 | 76 | 80 | 82 | 82 | 81 | 76 | 71 | 67 |
| Difference | -18 | -17 | -13 | -7 | +1 | +7 | +11 | +12 | +10 | +4 | -5 | -15 |
| Jan – Jun | Jan | Feb | Mar | Apr | May | Jun |
|---|---|---|---|---|---|---|
| Atlanta | 83 | 83 | 81 | 78 | 75 | 73 |
| Cape Town | 65 | 66 | 68 | 71 | 76 | 80 |
| Difference | -18 | -17 | -13 | -7 | +1 | +7 |
| Jul – Dec | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|
| Atlanta | 70 | 70 | 71 | 72 | 76 | 82 |
| Cape Town | 82 | 82 | 81 | 76 | 71 | 67 |
| Difference | +11 | +12 | +10 | +4 | -5 | -15 |
How both climates are changing
Both cities are warming. Each city has its own warming trend; see its trends page for the year-by-year detail. Atlanta trends → · Cape Town trends →
Both cities' Köppen climate types are projected to hold steady through 2099 (SSP2-4.5).
Methodology & sources
Atlanta
Temperature & precipitation — the official 1991–2020 climate normals from NOAA's U.S. Climate Normals, measured at Atlanta Hartsfield-jackson Int (NOAA GHCN station USW00013874), about 14 km from the city centre.
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.
Cape Town
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.
← change Atlanta · change Cape Town → · Atlanta page · Cape Town page