Barnstable Climate by Month
Barnstable, Massachusetts, United States
Warm summers and cold winters, with rain spread through the year.
Barnstable has warm summers and cold winters, with rain spread through the year. Expect highs of 79°F (26°C) in July and 38°F (4°C) in January, with the coldest nights (January) near 23°F (-5°C). It gets 47 in (1198 mm) of rain a year, spread across the months.
- Warmest month
- 79°F(26°C)
- Average high, July
- Coldest nights
- 23°F(-5°C)
- Average low, January
- Rain per year
- 47 in(1198 mm)
- No clear rainy season
- Humidity
- 75%
- Sunniest: July
Best and worst months in Barnstable
Best for weatherJune to August are the best time for weather in Barnstable: highs near 77°F (25°C) and about 3.3 in (84 mm) of rain a month.
Least pleasantJanuary is the least pleasant month: it's the coldest, with highs of only 38°F (4°C).
Comfort combines how close the afternoon high is to 75°F (24°C) with how much rain falls and how humid it is. See where the weather is best in June.
Temperature and rain through the year
Highs and lows (°F)
Average highAverage low
Rain (in per month)
Barnstable weather by month
| Month | High | Low | Rain | Humidity | Sun |
|---|---|---|---|---|---|
| JanJanuary | 38°F(4°C) | 23°F(-5°C) | 3.9 in(98 mm) | 86% | 1.6 |
| FebFebruary | 40°F(4°C) | 24°F(-4°C) | 3.5 in(89 mm) | 66% | 2.6 |
| MarMarch | 46°F(8°C) | 31°F(-1°C) | 4.2 in(106 mm) | 64% | 3.5 |
| AprApril | 55°F(13°C) | 39°F(4°C) | 4.3 in(108 mm) | 73% | 4.5 |
| MayMay | 64°F(18°C) | 49°F(9°C) | 3.7 in(95 mm) | 70% | 5.3 |
| JunJuneBest | 73°F(23°C) | 58°F(15°C) | 3.6 in(92 mm) | 74% | 5.7 |
| JulJulyBest | 79°F(26°C) | 64°F(18°C) | 2.8 in(72 mm) | 79% | 5.8 |
| AugAugustBest | 78°F(26°C) | 64°F(18°C) | 3.5 in(88 mm) | 77% | 5.2 |
| SepSeptember | 72°F(22°C) | 57°F(14°C) | 3.8 in(96 mm) | 78% | 4.0 |
| OctOctober | 62°F(17°C) | 47°F(8°C) | 4.6 in(116 mm) | 76% | 2.8 |
| NovNovember | 52°F(11°C) | 38°F(3°C) | 4.7 in(119 mm) | 78% | 1.8 |
| DecDecember | 44°F(7°C) | 30°F(-1°C) | 4.7 in(119 mm) | 81% | 1.4 |
1991–2020 averages. Sun is solar radiation in kWh/m² per day. Highlighted: the most comfortable months.
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