United States
UV Index in Maryland — Current UV Levels
Check the current UV index for 1 cities in Maryland. Select a city below for real-time UV data, hourly forecasts, and sun protection advice.
UV Index by City in Maryland
Sun Safety in Maryland
UV levels in Maryland vary by season, altitude, and proximity to water. The WHO recommends sun protection whenever UV reaches 3 or higher. Apply SPF 30+ before outdoor activities and reapply every 2 hours.
UV Index in Maryland: What to Know
Maryland sees moderate-to-high UV in summer, peaking in July across the state from the mountains to the bay.
Across Maryland, the UV index peaks in the four hours around solar noon (roughly noon to 3 PM local time). The World Health Organization recommends sun protection whenever the UV index reaches 3 or higher: apply broad-spectrum SPF 30 at UV 3–5, SPF 50 at UV 6–7, and SPF 50+ with reapplication every two hours at UV 8 and above. Check the live, hour-by-hour UV index for Baltimore on the city pages above before heading outdoors.
Common Questions About UV in Maryland
When is the UV index highest in Maryland?
UV in Maryland is strongest between noon and 3 PM local time, and highest in the summer months when the sun sits highest in the sky. Check the hourly chart for Baltimore above to see today's exact peak.
Do I need sunscreen in Maryland?
Yes — whenever the UV index reaches 3 or higher, which in Maryland covers most of the daytime hours from spring through fall. Even on cloudy days, up to 80% of UV can reach the ground.
How accurate is this UV data for Maryland?
Our UV index for Maryland comes from Open-Meteo, which aggregates national weather-service models, and updates every 15 minutes. Levels follow the official WHO global solar UV index scale.