The best time to visit Mayo is during the summer months, from June to August, when the weather is mild and the days are long.
This period offers the most comfortable conditions for outdoor activities, with average temperatures ranging from 15°C to 25°C (59°F to 77°F). The extended daylight hours, sometimes reaching nearly 24 hours around the summer solstice, allow for ample time to explore the region's natural beauty and participate in local events. It's an ideal time for travelers who want to maximize their outdoor experiences, such as hiking, fishing, or canoeing.
Should you be interested in witnessing the Northern Lights, the shoulder seasons of late August to September or March to April offer darker skies while still providing reasonable temperatures.