May on Martha’s Vineyard marks the transition from spring to summer. Typical conditions involve average high temperatures ranging from the mid-50s to low 60s Fahrenheit (13-16C), with overnight lows averaging in the mid-40s to low 50s Fahrenheit (7-10C). Ocean temperatures remain cool, generally in the low 50s Fahrenheit (10-12C). Rainfall is possible throughout the month, though typically lighter than in earlier spring months. Sunshine increases, offering pleasant conditions for outdoor activities.
This period offers a unique opportunity to experience the island before the peak summer season. Crowds are generally smaller, allowing for more leisurely exploration of the island’s natural beauty, charming towns, and historical sites. Accommodation rates can be more affordable compared to the summer months. The pleasant weather makes May ideal for hiking, biking, birdwatching, and exploring the beaches without the intense heat and congestion of July and August. Historically, May has been a time of renewal and preparation on the island, as businesses gear up for the influx of summer visitors.