SunticUV index in Riyadh today
Riyadh sits deep in the Arabian interior, where a dry desert climate and near-constant clear skies push midday UV to very high or extreme for much of the year. The only accurate figure is a live one for your exact spot: Suntic shows Riyadh's real-time UV index and a 10-day forecast.
Sun and UV in Riyadh
Landlocked in central Arabia, Riyadh sees very little cloud cover and some of the driest air anywhere, so UV reaches the ground largely unfiltered. Midday UV climbs to very high or extreme levels from spring through autumn, and the low humidity can make the heat feel more bearable than it should, masking how strong the UV really is. Even the milder winter months bring moderate-to-high UV on the city's typically cloudless days.
When is UV highest in Riyadh?
UV is highest around solar noon (broadly 10am to 4pm) and strongest across April to September. The exact peak shifts with the season and the day's weather. For more on this, see when is the sun strongest.
The UV index scale
| UV index | Risk level | What to do |
|---|---|---|
| 0-2 | Low | Minimal risk. Safe to be outside; sunglasses on bright days. |
| 3-5 | Moderate | Take care at midday. Use SPF 30+, a hat and shade around noon. |
| 6-7 | High | Protection needed. SPF 30+, cover up, seek shade 10am-4pm. |
| 8-10 | Very high | Extra protection. Avoid the sun at midday; SPF, clothing and shade are essential. |
| 11+ | Extreme | Take all precautions. Unprotected skin can burn quickly; stay inside or fully covered at peak hours. |
UV index categories follow the World Health Organization / US EPA scale.
Staying sun-safe in Riyadh
- Pale desert sand and light stone reflect extra UV around the city, adding to direct exposure.
- Extreme summer UV can burn unprotected skin quickly, so plan outdoor time for early morning or evening.
- Dry air keeps sweat from signalling how hot you are, so go by the UV index, not how you feel.
Wherever you are, the basics hold: use broad-spectrum SPF 30+, seek shade around midday, cover up, and never let your skin burn. See our sunburn prevention tips.
See Riyadh's live UV index
Suntic turns the live UV index into personal safe-sun times, sunscreen reminders and vitamin D tracking on your iPhone.
