UV Index in Johannesburg

Real-time UV forecast & tanning weather

Current Conditions

Loading live weather data...
0
Low
UV Index
🌡️
10°C
Temperature
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Clear sky
Conditions
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Peak Tanning Window 1PM • UV 5

Hourly UV Forecast

☀️ Good tanning conditions 11AM–3PM 17°C • 3 km/h 🌬️
0
6AM
0
7AM
0
NOW
2
9AM
3
10AM
4
11AM
5
12PM
5
1PM
5
2PM
3
3PM
2
4PM
1
5PM
0
6PM
0
7PM
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8PM
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9PM
Low 0–2 Moderate 3–5 High 6–7 Very High 8–10 Extreme 11+

16-Day UV Forecast

5
Mon 1
Good
5
Tue 2
Good
5
Wed 3
Good
5
Thu 4
Poor
5
Fri 5
5
Sat 6
Fair
5
Sun 7
Fair
5
Mon 8
Good
5
Tue 9
Good
5
Wed 10
Fair
5
Thu 11
Fair
5
Fri 12
Fair
5
Sat 13
Fair
5
Sun 14
Good
3
Mon 15
Poor
4
Tue 16
Fair

Location & Climate

In Johannesburg, UV rises from 4 in June to 11 in January, with peak tanning months being January, February, December. The strongest UV occurs during the southern hemisphere summer months.

UV levels across the continent are among the highest globally. Prioritize gradual tanning sessions and always wear broad-spectrum sunscreen to protect against intense radiation.

Urban areas may experience higher apparent temperatures due to the heat island effect. Seek parks or waterfront areas for a more comfortable tanning session and better air circulation.

During the peak tanning season, use SPF 30-50 depending on the time of day. In winter months, SPF 15-30 is usually sufficient for daily protection.

Tanning Tips

Johannesburg enjoys strong UV from spring through fall. Peak tanning season runs January to December, with UV often exceeding 8.

Weather data by Open-Meteo (CC BY 4.0)

Monthly UV Index in Johannesburg

Average daily maximum UV index by month

Jan
11
Feb
11
Mar
9
Apr
8
May
6
Jun
4
Jul
4
Aug
4
Sep
6
Oct
8
Nov
9
Dec
11
Low Moderate High Very High Extreme

Best Months to Tan in Johannesburg

Based on average UV levels, the best months for tanning in Johannesburg are:

January Excellent February Excellent March Excellent April Great October Great November Excellent December Excellent

Rating based on average monthly UV index

Frequently Asked Questions

What is the UV index in Johannesburg right now?
The current UV index in Johannesburg is shown in the live weather section above. UV levels change throughout the day, typically peaking between 11 AM and 2 PM local time.
What is the best month to tan in Johannesburg?
The best months for tanning in Johannesburg are January, February, March, April, October, November, December, when average UV levels reach 7 or higher.
How long should I tan in Johannesburg?
Tanning time depends on your skin type and the current UV index. For a moderate UV of 10, a person with Skin Type III (medium complexion) can safely tan for about 15 minutes per session. Use our Tanning Calculator for personalized recommendations.
Is it safe to tan in UV index 11?
UV index 11 is classified as Extreme. Extreme — stay in shade during peak hours. Tanning is not recommended without strong protection.
When is the peak UV time in Johannesburg?
UV levels in Johannesburg typically peak between 11:00 AM and 2:00 PM local time. The exact peak depends on the season, cloud cover, and altitude.

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