Cool
Average highs are around 18°C, so pack for cooler days.
September verdict
Cape Town, The Western Cape, South Africa in September
Weather score38Poor
Poor for holiday weather
Average highs are around 18°C, so pack for cooler days. Sunshine averages 7.2h per day, enough for a balanced month. Rainfall averages 96mm, so some wet days are possible.
September weather
Monthly averages
Temp
18°C
Rain
96mm
Sun
7.2h
Sea
15°C
Weather score
38
Poor
Seasonal climate calendar
TemperatureTemp
RainRain
SunSun
SwimSwim
Weather scoreWeather score
Trip feel
Showers
Rainfall averages 96mm, so some wet days are possible.
Some sun
Sunshine averages 7.2h per day, enough for a balanced month.
Cool sea
Sea temperatures average 15°C, so the water can feel cool.
Map
Weather map
Compare Cape Town, The Western Cape, South Africa with nearby places by weather score, rain, sun, temperature, and swim conditions.
Temperature
September18°C average high
September is on the cooler side of Cape Town's year, useful if you prefer less intense daytime heat.
Warmest monthsJanuary to March and December
This stretch sets the upper range for average daytime heat.
Rain
September96mm average rain
September sits near Cape Town's yearly rainfall average, so rain is a normal planning factor rather than an outlier.
Driest monthsJanuary to April and October to December
This is the drier part of the year, when outdoor plans usually need less weather flexibility.
Sun
September7.2 hours average sun
September is below Cape Town's yearly sunshine average, so bright-day planning is less reliable than in peak months.
Brightest monthsJanuary to February and November to December
This stretch has the strongest sunshine in the monthly averages.
Sea temperature
September15°C average sea
September is below Cape Town's yearly sea-temperature average, so swimming can feel fresher.
Warmest seaJanuary to March and November to December
Sea temperatures are usually near 17°C in this stretch, so swimming comfort is at its strongest.
Weather score
September38 weather score
September scores below Cape Town's yearly average, so the weather trade-offs are more noticeable.
Best weather monthsJanuary to March and November to December
These months have the strongest weather score in the monthly averages.
Hotels in Cape Town, The Western Cape, South Africa
Marriott
View all
The Cape Town EDITIONCape Town, The Western Cape, South Africa
Cape Town Marriott Hotel Crystal TowersCape Town, South Africa
The Westin Cape TownCape Town, South Africa
Morea House, Autograph CollectionCape Town, South Africa
Lord Charles Hotel, Somerset West, a Tribute Portfolio HotelCape Town, The Western Cape, South Africa
AC Hotel Cape Town WaterfrontCape Town, The Western Cape, South Africa