Dartmouth Climate by Month
Dartmouth, Nova Scotia, Canada
Warm summers and freezing winters, with rain spread through the year.
Dartmouth has warm summers and freezing winters, with rain spread through the year. Afternoon highs range from 32°F (0°C) in January to 75°F (24°C) in August, and January nights average 16°F (-9°C). About 58 in (1479 mm) of rain falls in a typical year, with no clear rainy season. The air is humid, averaging 81% relative humidity.
- Warmest month
- 75°F(24°C)
- Average high, August
- Coldest nights
- 16°F(-9°C)
- Average low, January
- Rain per year
- 58 in(1479 mm)
- No clear rainy season
- Humidity
- 81%
- Sunniest: July
Best and worst months in Dartmouth
Best for weatherThe most comfortable weather comes in July and August, with highs around 75°F (24°C) and about 3.8 in (97 mm) of rain a month.
Least pleasantJanuary and February are the least pleasant; January is the coldest, with highs of only 32°F (0°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 August.
Temperature and rain through the year
Highs and lows (°F)
Average highAverage low
Rain (in per month)
Dartmouth weather by month
| Month | High | Low | Rain | Humidity | Sun |
|---|---|---|---|---|---|
| JanJanuary | 32°F(0°C) | 16°F(-9°C) | 5.5 in(140 mm) | 91% | 1.4 |
| FebFebruary | 33°F(0°C) | 16°F(-9°C) | 4.6 in(118 mm) | 90% | 2.3 |
| MarMarch | 39°F(4°C) | 23°F(-5°C) | 5.2 in(131 mm) | 86% | 3.4 |
| AprApril | 49°F(9°C) | 33°F(0°C) | 4.5 in(114 mm) | 70% | 4.2 |
| MayMay | 59°F(15°C) | 41°F(5°C) | 4.2 in(106 mm) | 73% | 5.0 |
| JunJune | 68°F(20°C) | 50°F(10°C) | 4.6 in(116 mm) | 76% | 5.5 |
| JulJulyBest | 75°F(24°C) | 58°F(14°C) | 3.9 in(99 mm) | 77% | 5.5 |
| AugAugustBest | 75°F(24°C) | 58°F(15°C) | 3.7 in(94 mm) | 76% | 5.0 |
| SepSeptember | 69°F(21°C) | 52°F(11°C) | 3.9 in(100 mm) | 84% | 3.9 |
| OctOctober | 58°F(14°C) | 42°F(6°C) | 5.7 in(144 mm) | 82% | 2.5 |
| NovNovember | 47°F(9°C) | 34°F(1°C) | 6.1 in(155 mm) | 81% | 1.4 |
| DecDecember | 38°F(3°C) | 24°F(-4°C) | 6.4 in(162 mm) | 86% | 1.1 |
1991–2020 averages. Sun is solar radiation in kWh/m² per day. Highlighted: the most comfortable months.
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