UV Index Today
The UV index in London right now is 0.1 (low). Today's maximum is 0.6 (low). At low levels the risk is small for most people; very sensitive skin may still need sunscreen.
London Hourly UV Index Today
| Time | UV index | Level |
|---|---|---|
| 16:00 | 0.3 | Low |
| 17:00 | 0.1 | Low |
| 18:00 | 0.1 | Low |
| 19:00 | 0.0 | Low |
| 20:00 | 0.0 | Low |
| 21:00 | 0.0 | Low |
| 22:00 | 0.0 | Low |
| 23:00 | 0.0 | Low |
Peak UV Index in London, Next 8 Days
| Date | Peak UV | Level |
|---|---|---|
| Today, 7 Oct | 0.6 | Low |
| Tomorrow, 8 Oct | 3.4 | Moderate |
| Friday, 9 Oct | 1.0 | Low |
| Saturday, 10 Oct | 1.4 | Low |
| Sunday, 11 Oct | 3.3 | Moderate |
| Monday, 12 Oct | 2.5 | Low |
| Tuesday, 13 Oct | 2.3 | Low |
| Wednesday, 14 Oct | 2.9 | Low |
See the full forecast for London →
Updated at 16:52 local time, 7 October 2026
UV index today across 42 countries and territories (capital cities, highest first)
| Country | UV now | Peak UV | Level |
|---|---|---|---|
| Brazil (Brasília) | 9.3 | 9.3 | Very high |
| DR Congo (Kinshasa) | 0.3 | 9.3 | Very high |
| Malaysia (Kuala Lumpur) | 0.0 | 8.8 | Very high |
| Mexico (Mexico City) | 5.2 | 8.7 | Very high |
| Peru (Lima) | 6.2 | 8.7 | Very high |
| Colombia (Bogotá) | 8.4 | 8.4 | Very high |
| Thailand (Bangkok) | 0.0 | 8.4 | Very high |
| Indonesia (Jakarta) | 0.0 | 8.4 | Very high |
| Philippines (Manila) | 0.0 | 8.4 | Very high |
| Myanmar (Naypyidaw) | 0.0 | 8.0 | Very high |
| Australia (Canberra) | 0.0 | 7.7 | High |
| Hong Kong | 0.0 | 7.6 | High |
| Saudi Arabia (Riyadh) | 0.0 | 7.5 | High |
| Bangladesh (Dhaka) | 0.0 | 7.4 | High |
| Chile (Santiago) | 7.0 | 7.4 | High |
| United Arab Emirates (Abu Dhabi) | 0.0 | 7.0 | High |
| Nigeria (Abuja) | 2.1 | 6.8 | High |
| Pakistan (Islamabad) | 0.0 | 6.1 | High |
| Taiwan (Taipei) | 0.0 | 6.1 | High |
| Egypt (Cairo) | 0.1 | 6.0 | Moderate |
| Iran (Tehran) | 0.0 | 5.9 | Moderate |
| India (New Delhi) | 0.0 | 5.8 | Moderate |
| Japan (Tokyo) | 0.0 | 5.8 | Moderate |
| South Korea (Seoul) | 0.0 | 5.4 | Moderate |
| Turkey (Ankara) | 0.0 | 5.2 | Moderate |
| United States (Washington, D.C.) | 4.7 | 5.2 | Moderate |
| Spain (Madrid) | 2.2 | 5.2 | Moderate |
| China (Beijing) | 0.0 | 4.9 | Moderate |
| Italy (Rome) | 0.8 | 4.8 | Moderate |
| Iraq (Baghdad) | 0.0 | 4.1 | Moderate |
| Austria (Vienna) | 0.4 | 3.6 | Moderate |
| Czechia (Prague) | 0.5 | 3.2 | Moderate |
| Ireland (Dublin) | 1.3 | 3.2 | Moderate |
| Belgium (Brussels) | 0.7 | 3.1 | Moderate |
| Netherlands (Amsterdam) | 0.6 | 3.0 | Low |
| Russia (Moscow) | 0.0 | 2.8 | Low |
| Sweden (Stockholm) | 0.2 | 2.4 | Low |
| Finland (Helsinki) | 0.1 | 2.3 | Low |
| Norway (Oslo) | 0.3 | 2.1 | Low |
| Canada (Ottawa) | 2.0 | 2.0 | Low |
| France (Paris) | 0.5 | 1.9 | Low |
| United Kingdom (London) | 0.1 | 0.6 | Low |
The UV index scale
The UV index measures the strength of sunburn-causing ultraviolet radiation: 0–2 is low, 3–5 moderate, 6–7 high, 8–10 very high and 11 or more extreme. The World Health Organization recommends sun protection from a UV index of 3.
When is UV strongest?
UV peaks around solar noon and is higher in summer, at high altitude and near the equator. Thin cloud blocks only part of it, so you can burn on a bright overcast day. Water, sand and snow reflect UV and increase exposure.
Figures come from a blend of global weather models (ECMWF, ICON and GFS) served through Open-Meteo, and refresh every 15 minutes. For official warnings, follow your national weather service.