Martha's Vineyard
United States · Northeast US
Year-round range: 30°F to 72°F
July
Excellent conditions this month
Warm sea, low rain, and plenty of bright days make this a strong beach month.
Your monthly fit score
Comfort fit by month.
Climate details▼
Temperature
Average highs and lows.
July has comfortable temperatures — not too hot, not too cold.
Rainfall
Monthly rain and rain days.
July has moderate rainfall — occasional showers but mostly manageable.
Sunshine
Average hours of bright sun per day.
July is sunny overall, with occasional showers to plan around.
Clear sky
Clear-sky share is the inverse of average cloud cover (100% minus cloud cover). Band labels follow standard meteorological categories; distribution within each band varies by day.
Air comfort by month
Humidity and heat feel by month.
July is mostly comfortable — low heat and humidity pressure.
Time-of-day patterns
Typical hourly rhythm for July.
Temperature by hour
Temperature by hour and month
Typical temperature through the day across the year (1996-2025 normals, local time). Shaded cells are nighttime.
In July, afternoons reach about 73° and nights settle near 68°.
▶Full month-by-month data
| Month | High °F | Low °F | Rain days | Rain (in) | Sun h/day | Humidity | Sea °F |
|---|---|---|---|---|---|---|---|
| Jan | 39°F | 31°F | 12 | 4.3in | 4.6h | 70.85714285714286% | 36°F |
| Feb | 39°F | 30°F | 10 | 3.7in | 5.4h | 71% | 35°F |
| Mar | 42°F | 35°F | 12 | 4.6in | 6.1h | 72.14285714285714% | 37°F |
| Apr | 49°F | 43°F | 11 | 3.9in | 6.7h | 75.85714285714285% | 43°F |
| May | 56°F | 51°F | 11 | 4.0in | 7.1h | 81.71428571428571% | 53°F |
| Jun | 65°F | 60°F | 10 | 3.4in | 7.8h | 84.99999999999999% | 63°F |
| Jul | 72°F | 68°F | 9 | 3.3in | 8.7h | 85.14285714285714% | 70°F |
| Aug | 72°F | 68°F | 9 | 3.5in | 8.5h | 82.85714285714285% | 72°F |
| Sep | 68°F | 63°F | 9 | 3.9in | 7.5h | 78.14285714285714% | 69°F |
| Oct | 61°F | 55°F | 10 | 4.6in | 6.5h | 73.28571428571428% | 60°F |
| Nov | 52°F | 45°F | 11 | 4.5in | 5.2h | 68.85714285714285% | 50°F |
| Dec | 45°F | 36°F | 12 | 4.8in | 4.5h | 71% | 41°F |