April 11 is generally a great time to visit Johannesburg. While there is a slight chance of rain (20%), showers are usually brief. Expect comfortable 21°C weather. As it's peak season for Johannesburg, we recommend booking your stay well in advance to secure the best rates.
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Essential Travel Info for Johannesburg
Currency
ZAR
R South African rand
Language
Afrikaans
+10 more
Driving
Left side
Connect
Always-On[dead link], +27 11 575-2505, p...
Safety
Moderate Safety
GPI: 2.283
Johannesburg Weather Forecast for April 11
"Mild & Comfortable. Expect average highs of 20.5°C. 20% chance of rain."
What to Wear in Johannesburg in April
Based on historical data for April 11, Johannesburg typically experiences temperatures between 10°C and 20.5°C. We recommend packing light jacket, long pants to stay comfortable. Trends suggest it will stay mostly dry (20% rain probability), but checking the forecast before heading out is always wise.
Complete Packing Guide
Weekly breakdown & essential items for Johannesburg
Smart Suitcase
- Light Jacket
- Long Pants
Average High
20.5°C
Daytime Peak
Average Low
10°C
Nighttime Low
Feels Like
20.6°C
☀️ Feels accurate
Rain Chance
20%
Avg 1mm if it rains
Cloud Cover
39%
Light drizzle
Pressure
1019.7 hPa
Low volatility
Johannesburg Weather Conditions & UV Index
Weather Confidence
30-year variance analysis
Based on 10 years of data
✓ This date historically delivers consistent weather 78% of the time. Safe to plan outdoor activities with confidence.
Sun Exposure
UV Index & Safety Guide
Protection Needed
SPF 15 for extended outdoor time
Type I-II
🔴 35 min to burn
Type III-IV
🟡 53 min to burn
Type V-VI
🟢 88 min to burn
UV estimate based on latitude, season & cloud cover. Actual UV may vary.
Outdoor Comfort
How pleasant is it outside?
Dew Point
14.6°C
Pleasant
Heat Stress
Low
No heat warning
😊 Best outdoor time:
Any time during daylight hours
Travel & Logistics Insights
Local Calendar
Business Day
Standard hours in South Africa
Flight Traffic
High
99/100 pressure index
Health Advisory
Required
2 vaccines • View Details →
Landing Slots
~296
Daily arrival options (inc. codeshare)
Sunrise, Sunset & Wind in Johannesburg
Daylight & Sun
Solar Elevation Cycle
🌅 Sunrise
06:22
☀️ Noon
12:10
🌇 Sunset
17:57
⏱️ Daylight
11h 34m
Wind Speed
14.2 km/h
Gentle breeze
Sunshine
9.4 hrs
Direct Sun (Cloud-free)
Humidity
69%
Slightly humid
Travel Intelligence
Exclusive flight analytics & health data for Johannesburg
Smart Flight Estimator
Airport-to-Airport Logistics
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Travel Health & Safety in Johannesburg
Travel Comfort Index
Real-time tourism conditions
Weather Quality
☀️ Excellent
Tourist Crowds
🟡 Busy
Price Level
💰💰 Moderate
Health & Wellbeing
Meteo-Health Forecast
Stable conditions. Low risk of headaches.
Weather unlikely to affect joint pain.
Moderate fish activity expected.
Air quality is acceptable. Sensitive individuals should limit prolonged outdoor exertion.
Regional Safety Profile
Seismic Activity
Moderate seismic activity. Occasional tremors possible.
"According to 30YearWeather's analysis of 30 years of NASA satellite data, Johannesburg on April 11 averages 20.5°C with a 20% precipitation probability. Wedding/Outdoor Event Score: 99/100."
— Source: 30YearWeather.com|Data: NASA POWER (1991-2021)|View Methodology
Johannesburg Weather History (2010–2024)
Temperature History
Hall of Fame
Records from last 10 years
Better Alternatives Nearby
Consider these dates within ±7 days
💡 Moving your event by a few days could significantly improve weather conditions
Compare Other Cities
Same date (April 11) in other destinations
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📍 Is Johannesburg Worth Visiting on April 11?
Planning a trip to Johannesburg on April 11? Our historical weather analysis based on 30 years of NASA satellite data shows that this time of year is characterized by pleasant mild weather averaging 20.5°C with a 20% historical precipitation risk.
✈️ Travel Logistics: Approximately 296 landing slots available daily during this period, indicating manageable crowd levels.
💉 Health Advisory: 9 vaccinations are recommended for South Africa, including COVID-19.
📊 Historical Extremes: The hottest April 11 recorded in the last 30 years saw temperatures hit 27.5°C in 2021, while the coldest dropped to 6.1°C in 2024.