Temperature
Cool by day, cold at night.
Barnstable is usually most comfortable from June to August. Typical daytime highs range from 38–76°F across the year. Rain varies by season.

Cool by day, cold at night.
Several rainy days. About 9 wet days this month.
A mix of sunshine and cloud.
Humidity is rarely noticeable in the cool air.
In November, afternoons feel about 40° and nights feel near 36°.
Partly cloudy skies this month.
Breezy November days can feel brisker in open spots.
November late afternoons are around 49°F, and early evening stays near 48°F.
| Month | High°F | Low°F | Rainin | Wet days | Sunh | Humidity% |
|---|---|---|---|---|---|---|
| Jan | 38 | 28 | 3.9 | 11 | 6.3 | 71 |
| Feb | 39 | 29 | 3.3 | 10 | 7.2 | 70 |
| Mar | 43 | 34 | 4.4 | 11 | 8.1 | 70 |
| Apr | 51 | 43 | 3.9 | 11 | 9.3 | 72 |
| May | 60 | 51 | 3.2 | 10 | 10.2 | 77 |
| Jun | 69 | 61 | 3.1 | 9 | 11.3 | 80 |
| Jul | 76 | 68 | 2.5 | 8 | 11.7 | 80 |
| Aug | 75 | 68 | 3.1 | 8 | 11.0 | 81 |
| Sep | 69 | 62 | 3.6 | 8 | 9.3 | 80 |
| Oct | 61 | 52 | 4.4 | 9 | 7.9 | 76 |
| Nov | 52 | 43 | 3.9 | 9 | 6.4 | 72 |
| Dec | 44 | 34 | 4.6 | 11 | 5.7 | 73 |
Similar climates
Want a side-by-side climate view? Compare Barnstable with New York City.
Typical monthly values are based on long-term climate records. Useful for planning, not a forecast. Check the weather before you travel.
Sunshine: source type is not yet identified at metric level.
Local microclimates can vary by beach, neighborhood, trail, or elevation.
Last updated: Aug 27, 2026
Data & methodology