UV Index
UV Index
Today's UV index in Dundalk, Ireland 
will be up to 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: 2025-05-10
With a UV index reaching up to 5 in Dundalk, 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.
Dundalk's UV index is usually low to moderate, typically ranging from about 1 in winter to 5 or 6 in summer. It stays fairly safe compared to sunnier places.
The weather in Dundalk is mild with cool summers and mild winters. It rains evenly through the year, and it often feels cloudy or overcast, especially in the colder months.
Compared to the rest of Ireland and nearby Northern Ireland, Dundalk has similar weather but can be slightly warmer and drier than areas further west, which get more rain and stronger winds coming from the Atlantic Ocean.
See the UV index hour by hour for Dundalk, along with the temperature and how cloudy it is. If the UV level is higher than moderate, it's best to avoid direct sunlight.