Today's Weather Forecast - Cape Town

Today's weather in Cape Town. high 21°C (70°F), low 15°C (59°F). Overcast.

Today’s Hourly Weather Outlook

Morning6 AM – Noon17°
Wind speed
28 km/h
Rain probability
0%
AfternoonNoon – 6 PM20°
Wind speed
29 km/h
Rain probability
0%
Evening6 PM – Midn17°
Wind speed
29 km/h
Rain probability
12%
NightMidn – 6 AM15°
Wind speed
24 km/h
Rain probability
0%

24-Hour Rain & Temperature Forecast

Sunrise & Sunset

Sunrise
Dawn 6:21 AM
Total Daylight
69% of day elapsedSolar noon 12:43 PM
Sunset
Dusk 7:05 PM
Remaining3h 39m
Solar elevation40°
vs yesterday+3 min

Air Quality Index & Health Advice

Air Quality Index

Air quality level
Moderate
Dominant pollutant
Dominant: PM10
Monitoring station
Foreshore-NAQI, City of Cape Town, South Africa
PM2.5
31μg/m³
PM10
51μg/m³
NO₂
7.4ppb
SO₂
1.2ppb
0Good → Hazardous300+

5-Day Weather Forecast

Full 15-Day Forecast

Weather Insight

Cape Town is forecast to reach a high of 21°C today, with an overnight low around 15°C. That's 5° above the long-term average high of 16°C for this time of year. It continues a recent pattern — 10 of the last 19 days with published data have run warmer than normal. Expect little chance of rain (12% probability) and moderate breezes averaging 29 km/h. Air quality is currently Moderate (AQI 56), driven mainly by PM2.5 at 12 μg/m³.

Today vs Normal

21°C+5° above normal

The long-term average high for today is 16°C.

10 of the last 19 days with published data ran above normal.

It continues that pattern - today's forecast is also running above normal.

2026-08-19: 16°C16°2026-08-20: 16°C16°2026-08-21: 17°C17°2026-08-22: 16°C16°2026-08-23: 16°C16°2026-08-24: 16°C16°2026-08-25: 17°C17°2026-08-26: 19°C19°2026-08-27: 17°C17°2026-08-28: 16°C16°2026-08-29: 15°C15°2026-08-30: 15°C15°

Red = above normal, blue = at or below · last 12 days

Air Quality

Air Quality
Moderate

Air quality is acceptable for most people. Unusually sensitive individuals should consider reducing prolonged or heavy outdoor exertion.