Martha's Vineyard vs Nantucket: which is sunnier?
🇺🇸 United States vs 🇺🇸 United States · 49 km apart · long-term climate normals (NASA POWER, 2001–2020)
Martha's Vineyard and Nantucket are virtually tied for annual sunshine — about 2,196 vs 2,196 hours a year. Martha's Vineyard has the higher Sunshine Score in 5 of 12 months; the other 7 are within 2 points.
Scores are the 0–100 Sunshine Score — sunshine, daytime warmth and dryness in one number, per month.
At a glance
| Martha's Vineyard | Nantucket | |
|---|---|---|
| Sunshine hours / year | 2,196 | 2,196 |
| Sunniest month | July (77/100) | July (78/100) |
| Nov–Feb average score | 5/100 | 5/100 |
| Jun–Aug average score | 76/100 | 71/100 |
| Rain / year | 1,155 mm | 1,126 mm |
| Warmest sea | 21°C / 70°F | 20°C / 68°F |
| Peak midday UV | 7 (high) | 7 (high) |
Martha's Vineyard vs Nantucket month by month
| Month | Sunshine Score | Day high °C | Rain mm | Sea °C | ||||
|---|---|---|---|---|---|---|---|---|
| Martha's Vineyard | Nantucket | Martha's Vineyard | Nantucket | Martha's Vineyard | Nantucket | Martha's Vineyard | Nantucket | |
| January | 0 | 0 | 3° | 4° | 90 | 91 | 6° | 6° |
| February | 0 | 0 | 3° | 4° | 84 | 87 | 4° | 4° |
| March | 0 | 0 | 5° | 5° | 109 | 106 | 5° | 5° |
| April | 12 | 0 | 10° | 8° | 103 | 97 | 8° | 8° |
| May | 38 | 25 | 14° | 12° | 86 | 86 | 12° | 12° |
| June | 75 | 57 | 20° | 17° | 92 | 84 | 17° | 16° |
| July | 77 | 78 | 24° | 21° | 79 | 72 | 21° | 19° |
| August | 77 | 78 | 24° | 22° | 78 | 74 | 21° | 20° |
| September | 74 | 68 | 21° | 19° | 96 | 95 | 20° | 20° |
| October | 47 | 41 | 16° | 15° | 118 | 114 | 17° | 16° |
| November | 18 | 18 | 11° | 11° | 105 | 106 | 13° | 12° |
| December | 0 | 0 | 7° | 7° | 115 | 114 | 8° | 8° |
The sunnier month by month: Jan even · Feb even · Mar even · Apr Martha's Vineyard · May Martha's Vineyard · Jun Martha's Vineyard · Jul even · Aug even · Sep Martha's Vineyard · Oct Martha's Vineyard · Nov even · Dec even.
When to pick which
- November–February: too close to call — Martha's Vineyard averages 5/100, Nantucket 5/100. Daytime highs are similar (6°C vs 7°C). See the winter sun ranking.
- March–May: Martha's Vineyard (average score 17/100 vs 8). Martha's Vineyard is the warmer, around 10°C daytime highs vs 8°C.
- June–August: Martha's Vineyard (average score 76/100 vs 71). Martha's Vineyard is the warmer, around 23°C daytime highs vs 20°C.
- September–October: Martha's Vineyard (average score 61/100 vs 55). Martha's Vineyard is the warmer, around 19°C daytime highs vs 17°C.
Sea temperature
Martha's Vineyard's sea gets warmer: 21°C / 70°F at its peak vs 20°C. Swimmable water (21°C+): Martha's Vineyard about 2 months a year, Nantucket never. Month-by-month sea temperatures are in the table above.
Full month-by-month guides: Martha's Vineyard weather by month · Nantucket weather by month · Best time to visit United States.
More comparisons: Martha's Vineyard vs Boston · Martha's Vineyard vs Providence/Warwick · Martha's Vineyard vs Hamilton · Nantucket vs Boston · Nantucket vs Providence/Warwick · Nantucket vs Hamilton · all head-to-heads