worldweather

Weather in Cape Town - 14-day forecast

Detailed weather forecast for Cape Town, South Africa: daytime and night temperature, rain, sunrise and sunset - today and for the next two weeks.
Forecast for the next days in Cape Town
today☀️ 18°💧 23 mm
Sun☀️ 21°💧 0.1 mm
Mon🌤️ 24°💧 0.1 mm
Tue🌤️ 23°💧 0.8 mm
Wed☀️ 19°💧 0.3 mm
Thu🌧️ 18°💧 0.3 mm
Fri🌧️ 15°💧 3.2 mm
Sat☁️ 17°💧 0.3 mm
Forecast vs 1991-2020 climate normal

How does the current forecast compare with normal?

We compare the coming days with weather usually observed at this time of year.

NASA POWER

Monday 7 Sept in Cape Town, the forecast high is 24°C. Typical daytime temperatures at this time of year range from 15°C to 17°C, so it will be exceptionally warm. It is warmer than 99% of similar days.

18°Cexceptionally warm
usually 15°C–17°C
warmer than 91% of similar days
night: exceptionally warm rain: exceptionally wet wind: lighter than usual
21°Cexceptionally warm
usually 15°C–17°C
warmer than 97% of similar days
night: exceptionally warm rain: typical rainfall wind: lighter than usual
24°Cexceptionally warm
usually 15°C–17°C
warmer than 99% of similar days
night: exceptionally warm rain: typical rainfall wind: exceptionally light
23°Cexceptionally warm
usually 15°C–17°C
warmer than 99% of similar days
night: exceptionally warm rain: typical rainfall wind: exceptionally light
19°Cexceptionally warm
usually 15°C–18°C
warmer than 92% of similar days
night: exceptionally warm rain: typical rainfall wind: lighter than usual
18°Cwarmer than usual
usually 15°C–18°C
warmer than 88% of similar days
night: exceptionally warm rain: typical rainfall wind: typical
15°Ccooler than usual
usually 15°C–18°C
cooler than 80% of similar days
night: near normal rain: more rain than usual wind: stronger than usual

How warm was this week in previous years?

Each bar shows the average daily high during the same 7-day period in each year.

swipe to see more years →
10°18°25° 1981: 17°C1982: 17°C1983: 16°C1984: 15°C1985: 17°C1986: 17°C1987: 17°C1988: 16°C1989: 16°C1990: 16°C1991: 15°C1992: 16°C1993: 16°C1994: 17°C1995: 16°C1996: 15°C1997: 17°C1998: 16°C1999: 16°C2000: 16°C2001: 16°C2002: 17°C2003: 17°C2004: 17°C2005: 16°C2006: 17°C2007: 16°C2008: 15°C2009: 16°C2010: 17°C2011: 17°C2012: 16°C2013: 15°C2014: 16°C2015: 16°C2016: 16°C2017: 17°C2018: 15°C2019: 19°C2020: 17°C2021: 16°C2022: 15°C2023: 15°C2024: 15°C2025: 17°C 2026 forecast: 20°C current forecast 20°C 198119902000201020202026
cooler yearstypical rangewarmer years2026 forecastcurrent forecast

From 1981 to 2025, the 5-11 Sept period averaged 16°C by day. The coolest year was 1991 (15°C) and the warmest was 2019 (19°C). The current forecast averages 20°C - higher than in 100% of historical years.

Historical reference: NASA POWER daily gridded data (MERRA-2), the 1991-2020 normal and a +/- 7-day calendar window. The typical range is the 20th-80th percentile. This is not a city weather-station reading and does not change the current forecast. NASA POWER Daily API.

14-day forecast - Cape Town

Cape Town - 14-day weather forecast infographic

Cape Town 30 & 45-day weather - long-range outlook

Next 16 days · forecast
19°
around 16° at night · days with rain: 3
Weeks 3-4 · avg for September
20°
around 10° at night · rain chance 32%
Weeks 5-7 · avg for October
23°
around 12° at night · rain chance 23%
The 30 & 45-day outlook for Cape Town: the next 16 days are a numerical forecast updated daily - on average 19° by day and 16° at night. Further out we rely on multi-year climate averages: around 20° in September, and about 23° in October. Forecasts beyond two weeks are indicative only.

Day-by-day forecast for Cape Town

Saturday5 September 2026
☀️18°clear sky
sunrise 07:00 · sunset 18:31 · night 15° · evening 19° · rain 22.98 mm · humidity 49% · wind 7 m/s · clouds 2%
Sunday6 September 2026
☀️21°clear sky
sunrise 06:59 · sunset 18:31 · night 18° · evening 22° · rain 0.12 mm · humidity 56% · wind 6 m/s · clouds 1%
Monday7 September 2026
🌤️24°a few clouds
sunrise 06:57 · sunset 18:32 · night 19° · evening 21° · rain 0.11 mm · humidity 48% · wind 4 m/s · clouds 14%
Tuesday8 September 2026
🌤️23°scattered clouds
sunrise 06:56 · sunset 18:33 · night 18° · evening 20° · rain 0.76 mm · humidity 54% · wind 4 m/s · clouds 48%
Wednesday9 September 2026
☀️19°clear sky
sunrise 06:54 · sunset 18:33 · night 15° · evening 18° · rain 0.26 mm · humidity 73% · wind 6 m/s · clouds 6%
Thursday10 September 2026
🌧️18°light rain
sunrise 06:53 · sunset 18:34 · night 16° · evening 18° · rain 0.26 mm · humidity 69% · wind 7 m/s · clouds 100%
Friday11 September 2026
🌧️15°moderate rain
sunrise 06:52 · sunset 18:35 · night 14° · evening 15° · rain 3.21 mm · humidity 85% · wind 11 m/s · clouds 100%
Saturday12 September 2026
☁️17°overcast clouds
sunrise 06:50 · sunset 18:36 · night 17° · evening 20° · rain 0.27 mm · humidity 65% · wind 5 m/s · clouds 100%
Sunday13 September 2026
🌧️17°light rain
sunrise 06:49 · sunset 18:36 · night 14° · evening 16° · rain 0.39 mm · humidity 78% · wind 5 m/s · clouds 100%
Monday14 September 2026
☀️17°clear sky
sunrise 06:48 · sunset 18:37 · night 13° · evening 17° · rain 0.46 mm · humidity 57% · wind 3 m/s · clouds 4%
Tuesday15 September 2026
🌤️16°scattered clouds
sunrise 06:46 · sunset 18:38 · night 14° · evening 17° · humidity 54% · wind 4 m/s · clouds 26%
Wednesday16 September 2026
☀️19°clear sky
sunrise 06:45 · sunset 18:38 · night 16° · evening 19° · rain 1.98 mm · humidity 66% · wind 4 m/s · clouds 1%
Thursday17 September 2026
☁️18°broken clouds
sunrise 06:43 · sunset 18:39 · night 15° · evening 17° · rain 0.95 mm · humidity 72% · wind 8 m/s · clouds 64%
Friday18 September 2026
☀️19°clear sky
sunrise 06:42 · sunset 18:40 · night 18° · evening 22° · humidity 56% · wind 5 m/s
Saturday19 September 2026
☀️20°clear sky
sunrise 06:41 · sunset 18:40 · night 15° · evening 18° · humidity 59% · wind 5 m/s · clouds 2%
Sunday20 September 2026
🌧️17°light rain
sunrise 06:39 · sunset 18:41 · night 14° · evening 16° · rain 0.1 mm · humidity 63% · wind 7 m/s · clouds 62%

UV index in Cape Town - is it safe to sunbathe?

UV INDEX · 16-DAY FORECASTCape Town03681111+6.1UV HIGHtoday, daily maxSPF 30-50, a hat and sunglasses are a must. Betterstay in shade between 11:00 and 15:00.Unprotected fair skin may burn in about 35 min6Sat5.096Sun6.096Mon7.096Tue8.096Wed9.094Thu10.093Fri11.096Sat12.096Sun13.096Mon14.091Tue15.097Wed16.096Thu17.097Fri18.096Sat19.096Sun20.090-2 low3-5 moderate6-7 high8-10 very high11+ extremeworld-prices.com · 2026-09-05
Today the UV index in Cape Town is 6 (high) - unprotected fair skin can burn in about 35 minutes. SPF 30-50, a hat and sunglasses are a must. Better stay in shade between 11:00 and 15:00.

Sea temperature - Cape Town

Water today
11°C
Week avg
13°C
Waves today
2.1 m
How's the water?
very cold
16-day sea temperature forecast:
5.09 11°C6.09 12°C7.09 13°C8.09 14°C9.09 14°C10.09 12°C11.09 13°C12.09 11°C13.09 11°C
Average sea temperature through the year:
Jan 15°CFeb 15°CMar 16°CApr 14°CMay 14°CJun 14°CJul 14°CAug 14°CSep 15°COct 15°CNov 14°CDec 15°C
Sea-surface temperature from marine models, updated daily. See also: where the sea is warmest right now.

Cape Town weather through the year

Cape Town - annual climate
Upcoming public holidays in South Africa: Heritage Day — 24 September · Day of Reconciliation — 16 December · Christmas Day — 25 December.

Nearby and related places

Port ElizabethEastern CapeKeetmanshoopLüderitzEast LondonBloemfonteinMafetengDurbanWelkomSoweto

FAQ - Cape Town weather

What is the weather like in Cape Town today?
Today it is about 18° during the day and 15° at night, clear sky.
How far ahead can I check the forecast for Cape Town?
This page shows a detailed 14-day forecast plus the long-term monthly climate, so you can plan both a short trip and a holiday months ahead.