South Beach (Martha's Vineyard) Weather Forecast
- 58
- 70
Increasing Clouds
- 61
- 71
Rain Showers Likely
- 62
- 74
Chance Rain Showers
- 56
- 75
Mostly Sunny
- 54
- 67
Mostly Sunny
- 56
- 68
Partly Sunny
Today 16 Sep Dukes
Mostly sunny. Highs around 70. East Winds 10 to 15 Mph.
Tonight 16 Sep Dukes
Mostly cloudy. Lows in the upper 50s. East Winds 10 to 15 Mph.
South Beach (Martha's Vineyard) Temperature Statistics
September Temperature
Marthas Vineyard Airport (5.6 miles)
Lowest 13 September, 2025
55 °FAverage September
66.8 °FHighest 5 September, 2025
77 °F
Climate (2020–Present)
Marthas Vineyard Airport (5.6 miles)
Average Low 2020–2025
44.6 °FAverage 2020–2025
53.2 °FAverage High 2020–2025
61 °F