UV Index in Johannesburg Today — Check Current UV Levels in Johannesburg, South Africa
Current UV Index in Johannesburg
5.5 Moderate
Wear SPF 30+ sunscreen. Seek shade at midday.
Updated at 3:30 PM local time · Data from Open-Meteo
Check the real-time UV index in Johannesburg right now. Get the current UV level, hourly UV forecast for today, and a 7-day UV outlook for Johannesburg, South Africa. Our free UV checker helps you know exactly when sun protection is needed before heading outdoors.
Current UV Index in Johannesburg
The UV index in Johannesburg changes throughout the day, typically peaking between 10am and 2pm local time. Use our interactive tool above to check the current level. Highveld at 5,750 feet increases UV significantly — South African sun demands year-round awareness
Hourly UV Forecast for Johannesburg Today
Planning outdoor activities in Johannesburg, South Africa? Check our hourly UV breakdown to find the safest windows. Morning hours before 10am and late afternoon after 4pm generally have the lowest UV levels. Our forecast updates every 15 minutes with data from Open-Meteo weather services.
7-Day UV Forecast for Johannesburg
Plan your week in Johannesburg with our 7-day UV index forecast. See which days will have the highest UV so you can schedule outdoor activities accordingly and prepare with the right level of sun protection.
Sun Protection Guide for Johannesburg
| UV Index | Level | What to Do in Johannesburg |
|---|---|---|
| 0–2 | Low | Enjoy outdoor activities freely. Sunscreen optional for most skin types. |
| 3–5 | Moderate | Wear SPF 30+ sunscreen. Seek shade during midday hours in Johannesburg. |
| 6–7 | High | Limit midday sun exposure. Use SPF 50+, wear a hat and sunglasses. |
| 8–10 | Very High | Minimize outdoor time between 10am–4pm. Full sun protection essential. |
| 11+ | Extreme | Avoid direct sun exposure. Stay indoors or in full shade during peak hours. |
Typical UV Levels in Johannesburg
Johannesburg typically experiences UV index values of 11–13 during peak season (October–March) and 4–6 during the off-season. Altitude amplifies UV intensity significantly — UV here is higher than sea-level cities at similar latitudes The elevated altitude increases UV intensity compared to sea-level locations.
Best Time for Outdoor Activities in Johannesburg
The safest time for outdoor activities in Johannesburg is before 10am and after 4pm when UV levels drop significantly. Year-round due to altitude and latitude, midday UV can reach very high or extreme levels. Always check the current UV index before extended outdoor plans.
Recommended SPF for Johannesburg
During peak UV season in Johannesburg (October–March), dermatologists recommend SPF 50+ broad-spectrum sunscreen. Apply 15–20 minutes before sun exposure and reapply every 2 hours — or immediately after swimming or sweating. During lower UV months, SPF 30 is typically sufficient for most skin types.
Johannesburg UV Index by Season
High UV Season in Johannesburg
UV levels in Johannesburg are highest year-round due to altitude and latitude, with the UV index regularly reaching 11–13. During this period, unprotected fair skin can burn in as little as 10–15 minutes. Protective clothing, wide-brim hats, and UV-blocking sunglasses are recommended alongside sunscreen.
Low UV Season in Johannesburg
UV levels in Johannesburg drop slightly during cloudier periods, typically measuring 4–6 on the UV index scale. While the burn risk is lower, UV radiation still reaches the surface — especially on clear days. SPF 30 is recommended for extended outdoor time even during the cooler months.
Recommended Sun Protection
- EltaMD UV Clear SPF 46 — #1 face sunscreen for daily protection. $37
- Supergoop! Glowscreen SPF 40 — Tinted primer with UV protection. $22
- Neutrogena Ultra Sheer SPF 70 — Budget body sunscreen. $10
- Banana Boat Light As Air SPF 50 — Lightweight twin pack. $15
- Roadbox UPF 50+ Sun Shirt — UV protective clothing. $19
- Outdoor Research Sombriolet Hat — UPF 50+ sun hat. $45
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Sun Safety FAQ for Johannesburg
What is the average UV index in Johannesburg?
The average UV index in Johannesburg ranges from 4–6 during the low season to 11–13 during peak months (October–March). Year-round averages depend on season, cloud cover, and time of day.
When is UV highest in Johannesburg?
UV is highest in Johannesburg year-round due to altitude and latitude, peaking between 10am and 2pm local time. The strongest UV months are typically October–March.
Do I need sunscreen in Johannesburg?
Yes — whenever the UV index reaches 3 or higher in Johannesburg, the World Health Organization recommends sun protection. During peak season (October–March), daily sunscreen use is strongly advised for all skin types.
UV Index Near Johannesburg
Check UV levels in cities near Johannesburg:
UV Index in Other Cities
About UV Index in Johannesburg
The UV index in Johannesburg, South Africa is influenced by latitude, altitude, season, cloud cover, and ozone layer thickness. UV radiation reflects off water, sand, snow, and concrete — increasing exposure even in shaded areas. Always check the current UV index before spending extended time outdoors in Johannesburg. Data is updated every 15 minutes via Open-Meteo weather services.
Disclaimer: UV index data, sunburn estimates, and sun protection recommendations for Johannesburg are approximate and for informational purposes only — not medical advice. Actual conditions vary based on local weather, altitude, and surface reflection. Consult a healthcare professional for personalized sun protection guidance.