UV Index
UV Index
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Today's UV index in Dundalk, Ireland 
will be up to 4, indicating a moderate level of sun exposure for the average person. Check the annual sun radiation in the city and our tips for today to make sure you're safe in the sun.
With a UV index reaching up to 4 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.
The UV index in Dundalk, Ireland is generally low due to its northern location. It rarely reaches high levels, even during summer months.
Dundalk experiences four distinct seasons. Spring brings mild temperatures and occasional rain, while summers are typically cool and damp. Autumn is often crisp and damp, leading to cold and wet winters. Snow is rare.
Compared to its region and neighboring countries, Dundalk's weather is milder than many other places at the same latitude, thanks to the North Atlantic Drift. Coastal cities in Norway, for example, have colder climates. Dundalk is also less prone to extreme weather conditions than its regional neighbors in the UK.
The chart below displays the average Shortwave Radiation Sum (MJ/m²) for each month of the last year in Dundalk. It's designed to provide you with a better understanding of the yearly weather and sun exposure.