South Africa Cape Town Weather in August — Climate Guide
August in Cape Town is moderate
August is moderate for Cape Town.
Late winter. Whale-watching peak continues; rain eases slightly.
Travel score
Cape Town August Weather Stats
Avg High
18°C
Avg Low
8°C
Rainy Days
8
80mm total
Sunshine
7h
Daily avg
Humidity
75%
moderate
UV Index
4
Moderate
Wind
15 km/h
Gusts 30
Sea Temp
15°C
cold for swimming
Crowds
Moderate
At attractions
August Sunrise & Sunset
Air Quality
PM2.5
15 μg/m³
PM10
28 μg/m³
Status
good
Feels-Like Temperature & Wind
Feels like
Daytime
18°C
Nighttime
7°C
Humidity and wind affect how the actual temperature feels.
Wind
15 km/h
Max gust 30 km/h
Activities Recommended for August
August Travel Pros & Cons
Pros
- Hotel rates moderate
- Hermanus whale-watching peak
- Slightly less rain than July
Cons
- Cool 8-18°C
August Events & Festivals
- Hermanus whale-watching peak continues
- Pre-spring shoulder
Cape Town in August — Full Picture
Late winter. Whale-watching peak continues; rain eases slightly.
What to Wear & What to Pack
Warm jacket; layers.
Packing Checklist
Seasonal Weather Overview
Spring (Mar·Apr·May)
23°C
12°C
6.3/mo
Summer (Jun·Jul·Aug)
Current17.7°C
7.7°C
8.7/mo
Autumn (Sep·Oct·Nov)
22°C
12°C
5.7/mo
Winter (Dec·Jan·Feb)
26.7°C
15.7°C
3.7/mo
Cape Town Monthly Weather Comparison
| Month | High | Low | Rain | Sun | Humid | UV | Crowd | Price |
|---|---|---|---|---|---|---|---|---|
| January (Best) | 27° | 16° | 4d·15mm | 11h | 65% | 11 | Very busy | Peak |
| February (Best) | 27° | 16° | 4d·20mm | 11h | 65% | 11 | Very busy | Peak |
| March (Best) | 26° | 14° | 5d·25mm | 10h | 70% | 10 | Very busy | Peak |
| April (Best) | 23° | 12° | 6d·50mm | 8h | 73% | 7 | Busy | Shoulder |
| 20° | 10° | 8d·100mm | 6h | 78% | 5 | Moderate | Shoulder | |
| 18° | 8° | 9d·110mm | 6h | 80% | 3 | Quiet | Low season | |
| 17° | 7° | 9d·90mm | 6h | 80% | 3 | Quiet | Low season | |
| 18° | 8° | 8d·80mm | 7h | 75% | 4 | Moderate | Low season | |
| 20° | 10° | 7d·50mm | 8h | 70% | 6 | Busy | Shoulder | |
| October (Best) | 22° | 12° | 6d·35mm | 10h | 70% | 9 | Busy | Shoulder |
| November (Best) | 24° | 14° | 4d·20mm | 11h | 65% | 10 | Very busy | Peak |
| December (Best) | 26° | 15° | 3d·15mm | 11h | 65% | 11 | Very busy | Peak |
View Other Months
Cape Town August Hotel Picks
Frequently Asked Questions
Is August a good time to visit Cape Town?
Cape Town in August is moderate. Tourist crowds are moderate and flight/hotel prices are low season.
What's the average temperature in Cape Town in August?
Cape Town August averages a high of 18°C and a low of 8°C.
Does it rain much in Cape Town in August?
Cape Town August averages 80mm of rainfall over about 8 rainy days.
What should I wear in Cape Town in August?
Warm jacket; layers.
What time are sunrise and sunset in Cape Town in August?
Cape Town August sunrise is 07:20 and sunset is 18:10, with 10h 50min of daylight.
What's the air quality like in Cape Town in August?
Cape Town August air quality (AQI) averages 40, rated Good. PM2.5 averages 15μg/m³.
What activities are recommended in Cape Town in August?
In August, Cape Town is great for Hermanus whale-watching, Stellenbosch winelands, Indoor cultural sites.
Is August peak season in Cape Town?
Cape Town August crowds are moderate and prices are low season. You can travel relatively comfortably without long queues.
Best Months to Visit Cape Town
View Other Months
Why you can trust weather guide
Based in Chiang Mai for 8+ years, with 30+ countries visited across Southeast Asia, Japan, and Europe. Every detail in this guide is primary-source verified as of April 2026, with prices auto-refreshed via live exchange rate APIs. This isn't AI-generated boilerplate — it's written from the perspective of someone who has actually been there.