WhatAWeatherCalculator for Barcelona
7-day max UV and peak hour
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Recommendations for this city
Mediterranean coast, high UV in summer (8-9). Sea breeze can mask sunburn. Apply extra caution on beaches and in the mountains due to additional UV reflection.
UV guide for Barcelona
Barcelona sits at 41.39 N, 2.17. Its UV index follows a seasonal cycle driven by latitude and mean cloud cover. This page offers real-time data from Open-Meteo and a customisable calculator so you know how long you can stay in the sun without burning.
Mediterranean coast, high UV in summer (8-9). Sea breeze can mask sunburn.
Sunburn occurs when the accumulated UVB dose exceeds your MED (Minimal Erythemal Dose), which depends on your Fitzpatrick skin type. Fair skin (I-II) has very low MED: in Barcelona in summer, type II skin can burn in less than 15 minutes unprotected at solar noon.
Specific recommendations: wear a hat, seek shade during the middle hours, apply SPF 30-50 every 2 hours and check this index before planning outdoor activities. Children, elderly and people with very fair skin or photosensitising medication should be extra careful.
UVA radiation passes through clouds and glass: watch out on overcast days and in cars with closed windows. UV 400 sunglasses are essential to prevent early cataracts and macular degeneration.