Yarmouth Climate by Month
Yarmouth, Massachusetts, United States
Warm summers and cold winters, with rain spread through the year.
Yarmouth has warm summers and cold winters, with rain spread through the year. Afternoon highs range from 38°F (4°C) in January to 79°F (26°C) in July, and January nights average 24°F (-5°C). About 47 in (1187 mm) of rain falls in a typical year, with no clear rainy season.
- Warmest month
- 79°F(26°C)
- Average high, July
- Coldest nights
- 24°F(-5°C)
- Average low, January
- Rain per year
- 47 in(1187 mm)
- No clear rainy season
- Humidity
- 75%
- Sunniest: July
Best and worst months in Yarmouth
Best for weatherThe most comfortable weather comes from June to August, with highs around 77°F (25°C) and about 3.2 in (82 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)
Yarmouth weather by month
| Month | High | Low | Rain | Humidity | Sun |
|---|---|---|---|---|---|
| JanJanuary | 38°F(4°C) | 24°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) | 65% | 2.6 |
| MarMarch | 45°F(7°C) | 31°F(0°C) | 4.1 in(105 mm) | 64% | 3.5 |
| AprApril | 54°F(12°C) | 40°F(4°C) | 4.1 in(105 mm) | 73% | 4.5 |
| MayMay | 64°F(18°C) | 49°F(9°C) | 3.8 in(96 mm) | 71% | 5.3 |
| JunJuneBest | 73°F(23°C) | 58°F(14°C) | 3.6 in(91 mm) | 75% | 5.7 |
| JulJulyBest | 79°F(26°C) | 64°F(18°C) | 2.8 in(70 mm) | 79% | 5.8 |
| AugAugustBest | 78°F(26°C) | 64°F(18°C) | 3.3 in(85 mm) | 78% | 5.2 |
| SepSeptember | 71°F(22°C) | 57°F(14°C) | 3.8 in(97 mm) | 78% | 4.0 |
| OctOctober | 62°F(17°C) | 47°F(8°C) | 4.6 in(116 mm) | 77% | 2.8 |
| NovNovember | 52°F(11°C) | 38°F(3°C) | 4.6 in(117 mm) | 78% | 1.8 |
| DecDecember | 44°F(7°C) | 30°F(-1°C) | 4.6 in(118 mm) | 80% | 1.4 |
1991–2020 averages. Sun is solar radiation in kWh/m² per day. Highlighted: the most comfortable months.
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