The best time to visit Käina, Hiiu, Estonia, is during the summer months from June to August, when the weather is mildest and most conducive for outdoor activities.
During these months, you can expect average temperatures ranging from 15°C to 20°C (59°F to 68°F), with longer daylight hours. This period is ideal for exploring Käina Bay, enjoying the natural surroundings, and participating in local events. The warmer weather makes it pleasant to walk or cycle through the area and visit nearby attractions.
Families will find this time particularly suitable for a relaxing vacation. The mild temperatures are comfortable for children to play outdoors, and many local activities and events are geared towards summer visitors. It's a great time to enjoy the beaches and nature reserves around Käina.
For travelers who appreciate a more tranquil experience without the peak summer crowds, late spring (May) or early autumn (September) can also be good options.