Typical conditions on this island off the coast of Massachusetts during July include warm, sunny days with average high temperatures in the mid-70s Fahrenheit (low 20s Celsius). Sea breezes moderate the heat and humidity, creating a comfortable climate. Rainfall is possible, but typically occurs in short showers. Ocean temperatures are suitable for swimming, generally reaching the low 70s Fahrenheit (low 20s Celsius).
Understanding the prevalent climatic conditions during this popular vacation month is crucial for planning activities such as sailing, swimming, beach visits, and outdoor excursions. Historically, this period has been a peak season for tourism on the island, attracting visitors who enjoy its pleasant summer weather. Reliable climate data informs packing decisions, helps visitors choose appropriate outdoor gear, and allows businesses to prepare for the influx of summer guests.