August 14, 2026 · Saint Petersburg, Russia
5,028,000 people
See today's UV index in Saint Petersburg hour by hour below. The UV index shows how strong the sun's ultraviolet radiation is — the higher the number, the faster skin can burn. Values are calculated for Saint Petersburg's coordinates and updated daily.
UV rises later today
Protection windowClear sky
Daylight: sunrise 05:11 – sunset 20:58
Tomorrow: UV 2 at its peak around 14:00
The UV index in Saint Petersburg peaks at 3 (moderate) around 12:00 today. Sun protection is recommended between 11:00 and 12:10, while the index stays at 3 or above. Cloud cover is damping the peak by roughly 18% compared with a clear sky. Tomorrow the index is forecast to peak at 2 around 14:00.
| Time | UV index | Level |
|---|---|---|
| 05:00 | 0 | Low |
| 06:00 | 0.1 | Low |
| 07:00 | 0.3 | Low |
| 08:00 | 0.8 | Low |
| 09:00 | 1.5 | Low |
| 10:00 | 2.3 | Low |
| 11:00 | 3 | Moderate |
| 12:00 | 3.1 | Moderate |
| 13:00 | 2.5 | Low |
| 14:00 | 2.4 | Low |
| 15:00 | 2.4 | Low |
| 16:00 | 1.7 | Low |
| 17:00 | 1.1 | Low |
| 18:00 | 0.6 | Low |
| 19:00 | 0.3 | Low |
| 20:00 | 0.1 | Low |
| 21:00 | 0 | Low |
Saint Petersburg lies at 60°N. The midday sun reaches 44.5° above the horizon in Saint Petersburg today, against a yearly ceiling of 53.5°. Elevation is what sets the ceiling for UV, and over Saint Petersburg it is moderate, so the index peaks around midsummer and stays low all winter.
The UV index is an international scale describing the strength of the sun's ultraviolet radiation at ground level. It starts at 0 and is effectively open-ended — at mid-latitudes it rarely exceeds 8, while in the tropics and high in the mountains it can pass 11. The higher the number, the less time it takes to get sunburnt.
The UV index depends mainly on how high the sun is in the sky. That is why it peaks around solar noon and is greatest in summer near the longest day of the year. Clouds, ozone, altitude and reflection from snow or water also affect the value.
| UV index | Level | Recommendation |
|---|---|---|
| 0–2 | Low | No special protection needed. |
| 3–5 | Moderate | Use sunscreen (SPF 30+), seek shade around midday. |
| 6–7 | High | Sunscreen, hat and sunglasses. Avoid the sun 12:00–15:00. |
| 8–10 | Very high | Extra protection. Limit midday sun exposure. |
| 11+ | Extreme | Avoid the sun at midday. Full protection required. |