Cape Town · Month comparison

March vs September

September ranks #1 overall vs March at #8. Spring arrives — wildflowers, improving weather, and the sweet spot before summer prices.

Cape Town March — aerial view of the Atlantic Seaboard coastline with the city and mountains in late-summer light

March

#8 of 12 months

Best match

Late summer — still excellent conditions as the domestic crowds ease.

  • ↑Summer conditions persist: 25°C, minimal rain, sea still warm for swimming
  • ↑Prices drop noticeably as school holidays end — the best value for good weather
Cape Town September — spring wildflowers in mixed colours under a clear blue sky at West Coast National Park

September

#1 of 12 months

Best match

Spring arrives — wildflowers, improving weather, and the sweet spot before summer prices.

  • ↑Spring wildflowers still visible at West Coast National Park and Kirstenbosch gardens
  • ↑Table Mountain hiking conditions improving sharply: 19°C and clearing skies by mid-month
FactorMarchSeptember
Weather score
8
7
Value score
5
7
Crowd score
5
7
Events score
6
8
Atmosphere
8
8
Avg high temp25.4°C19°C
Monthly rain20mm40mm
Daily sunshine9hrs7hrs

March trade-offs

  • ↓Some autumn rain days beginning toward month end: the season is shifting
  • ↓SE wind begins to ease but conditions still variable on Atlantic beaches
  • ↓Grapes of the wine harvest are being picked — less atmospheric than the post-harvest autumn

September trade-offs

  • ↓Rain still possible in early September; the transition from winter to spring is gradual
  • ↓Sea still cool (15°C) — swimming in the Atlantic requires fortitude
  • ↓Some spring wind days on the Atlantic seaboard as the SE begins to strengthen for summer
See all 12 months for Cape Town →March in detail →September in detail →
Scores compare months within Cape Town. Climate data: Open Meteo ERA5 30-year normals (1991–2020). Methodology →