Best time to visit Martha's Vineyard
The best time to visit Martha's Vineyard depends on what matters most to your plans. Summer offers warm historical temperature averages, while spring and autumn bring different conditions and seasonal transitions. Winter visits are possible too, but the ferry port and the opening period of an individual attraction deserve particular attention.
Start with the activities you want to fit into your day, then check their dates alongside the ferry schedule. A walk through Oak Bluffs, a trip to Aquinnah and time in the State Forest all place different demands on transport and daylight. The things to do guide helps you choose stops; ferry routes explains seasonal ports.
The figures below are historical climate normals for Edgartown, not a forecast. Weather on the day can differ substantially from an average. Check conditions close to departure and keep enough flexibility for changes to a crossing or an outdoor plan.
Our take: an island drive
For an island outing, this drive offers an air-conditioned vehicle; check dates for your travel period.
Hand-picked tours, booked through Viator. Prices are indicative starting prices in US dollars (as of October 2026). Tap a tour for live availability and the current price in your currency.
An island tour to consider
This island outing uses an air-conditioned vehicle. Check its dates and meeting point when planning your visit.
Martha's Vineyard weather
NOAA’s Edgartown station gives monthly averages of daily high and low temperatures for 1991 to 2020. July averages 26.9°C for the daily high and 17.9°C for the daily low; August averages 26.6°C and 17.7°C. These are monthly averages, not daily extremes or a promise of conditions on a particular date.
The station records precipitation in every month of the normal period. For example, July averages 67.1 mm and December 122.9 mm. Carrying a layer for rain is useful regardless of the season. These land-based figures do not describe water temperature, and a climate average should not replace a current forecast.
The Atlantic hurricane season runs from June 1 to November 30. That calendar does not predict a particular local storm, but wind, heavy rain and coastal conditions can affect plans. Check current warnings and ferry notices when relevant, and keep a practical alternative for a day planned outdoors.
Spring and early summer
Spring brings a gradual change in the Edgartown normals: April averages a daily high of 13.0°C and May 18.3°C. A cooler morning and a warmer afternoon call for flexible clothing. A visit at this time can combine town walks with an outing farther across the island, provided the day’s transport works for both.
Seasonal ferries and attractions do not all follow the same calendar. Check the specific route, museum or lighthouse before setting your dates. If you plan to visit several places in one day, account for the journey between them and the time needed to return to your departure port.
Summer and autumn
July and August are the warmest months in the Edgartown normal period. September’s average daily high is 23.3°C, lower than those summer values. A warm monthly average still leaves room for rainy or windy days, so carry what you need for the actual forecast and avoid tying every activity to perfect weather.
Oak Bluffs is a seasonal ferry port, and the Cottage Museum operates seasonally from Memorial Day to mid-October. The Gay Head Lighthouse summer visiting schedule has its own end after Labor Day. Check the dates of each place you hope to enter rather than assuming that every attraction keeps the same autumn hours.
Winter and December
December’s Edgartown normals are 7.5°C for the average daily high and minus 0.4°C for the average daily low. These historical figures help with packing, not with predicting a particular December day. Dress for changeable conditions and check the forecast and ferry status before leaving.
The Woods Hole connection to Vineyard Haven continues year-round. The published winter period from October 23, 2026 to January 5, 2027 uses Vineyard Haven, while some other services close seasonally. Seastreak also scheduled Thanksgiving sailings in 2026, so check each operator and date. Plan the onward journey from the actual arrival port and consult the arrival guide for transport choices.
FAQ
Is there one best month?
Choose according to your priorities. Compare historical weather, ferry dates and the opening periods of the places you want to visit.
Does it rain only in one season?
The Edgartown climate normals show precipitation in every month. Check the current forecast when preparing for your trip.
Can I visit in December?
Yes. The Woods Hole ferry serves Vineyard Haven year-round. Check the day’s timetable and the seasonal opening dates of individual attractions.