UV Index
UV Index
Today's UV index in Montevideo, Uruguay 
will be up to 3.5, indicating a moderate level of sun exposure for the average person. Check our tips for today to make sure you're safe in the sun.
Last checked: 2025-05-09
With a UV index reaching up to 3.5 in Montevideo, stay shaded during midday when the sun is strongest; wear protective clothing, a wide-brimmed hat, UV-blocking sunglasses; apply SPF 30+ sunscreen every 2 hours, even on cloudy days; and be cautious of heightened UV on bright surfaces.
Montevideo's UV index ranges from low in winter to high in summer, peaking between 8 and 10 during the hottest months, indicating strong sun exposure. UV levels are moderate in spring and autumn.
The city experiences warm summers with average highs around 28°C (82°F) and mild winters averaging 11°C (52°F). Rainfall is fairly spread throughout the year but peaks slightly in spring and autumn. Windy days are common, especially in spring.
Compared to neighboring Buenos Aires, Montevideo is slightly cooler and less humid. It is milder and less rainy than inland Uruguay regions. Overall, it has a temperate climate similar to parts of southern Brazil but with more ocean influence.
See the UV index hour by hour for Montevideo, along with the temperature and how cloudy it is. If the UV level is higher than moderate, it's best to avoid direct sunlight.