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Monthly climate in Harbour Breton, Newfoundland and Labrador, Canada

Last updated: March 2, 2024

Under the Köppen–Geiger climate classification Harbour Breton features a humid continental climate (Dfb). Temperatures typically range between -4 °C (26 °F) and 17 °C (63 °F) through the year, but rarely can drop to -17 °C (3 °F) or can rise to as high as 22 °C (72 °F). The average annual precipitation amounts to about 1545 mm (60.8 inches) and receives 164 rainy days on the 1 mm (0.04 inches) threshold annually. Harbour Breton enjoys an average of 2258 hours of sunshine throughout the year, and daylight varies from 8 hours 29 minutes to 15 hours 53 minutes per day.

Monthly average temperatures in Harbour Breton, Newfoundland and Labrador, Canada §

The warmest months in Harbour Breton are July, August and September, with daily mean temperatures ranging from 14 to 17 °C (57 - 63 °F) throughout the day. The coldest temperatures usually occur in January, February and March, when daily mean temperatures range from -4 to -2 °C (26 - 29 °F) throughout the day. On average each year, Harbour Breton experiences 0 days above 25 °C (77.0 °F) and 126 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Harbour Breton, Newfoundland and Labrador, Canada. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Maximum 9°C
(48°F)		 8°C
(46°F)		 9°C
(49°F)		 9°C
(49°F)		 14°C
(57°F)		 18°C
(65°F)		 19°C
(67°F)		 22°C
(72°F)		 21°C
(70°F)		 19°C
(66°F)		 14°C
(57°F)		 13°C
(55°F)
Mean maximum 7°C
(45°F)		 6°C
(43°F)		 6°C
(43°F)		 8°C
(47°F)		 12°C
(53°F)		 15°C
(59°F)		 19°C
(67°F)		 21°C
(71°F)		 20°C
(68°F)		 16°C
(61°F)		 13°C
(57°F)		 10°C
(51°F)
Average high -0°C
(32°F)		 -1°C
(31°F)		 1°C
(33°F)		 4°C
(39°F)		 7°C
(45°F)		 12°C
(54°F)		 16°C
(61°F)		 19°C
(66°F)		 16°C
(61°F)		 11°C
(53°F)		 7°C
(45°F)		 2°C
(36°F)
Daily mean -3°C
(28°F)		 -4°C
(26°F)		 -2°C
(29°F)		 2°C
(35°F)		 4°C
(40°F)		 10°C
(50°F)		 14°C
(58°F)		 17°C
(63°F)		 14°C
(57°F)		 9°C
(49°F)		 5°C
(41°F)		 0°C
(32°F)
Average low -5°C
(23°F)		 -6°C
(21°F)		 -4°C
(25°F)		 -0°C
(32°F)		 2°C
(36°F)		 7°C
(46°F)		 12°C
(54°F)		 15°C
(59°F)		 12°C
(53°F)		 7°C
(45°F)		 3°C
(37°F)		 -2°C
(29°F)
Mean minimum -12°C
(11°F)		 -13°C
(8°F)		 -11°C
(13°F)		 -5°C
(23°F)		 -1°C
(31°F)		 3°C
(38°F)		 9°C
(48°F)		 11°C
(52°F)		 6°C
(43°F)		 2°C
(36°F)		 -2°C
(28°F)		 -7°C
(19°F)
Minimum -14°C
(7°F)		 -17°C
(3°F)		 -12°C
(11°F)		 -8°C
(18°F)		 -1°C
(30°F)		 1°C
(34°F)		 8°C
(47°F)		 9°C
(49°F)		 4°C
(40°F)		 0°C
(32°F)		 -5°C
(23°F)		 -11°C
(13°F)

Compare climate in Harbour Breton with other places

Compare temperature, precipitation, sunshine, UV index in Harbour Breton, Newfoundland and Labrador, Canada with other places around the world.

Monthly average precipitation in Harbour Breton, Newfoundland and Labrador, Canada §

Harbour Breton usually has the most precipitation in March, November and December, with an average of 15 rainy days and 159 mm (6.3 inches) of precipitation per month. The driest months in Harbour Breton are January, May and August. On average, 109 mm (4.3 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Harbour Breton, Newfoundland and Labrador, Canada. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Average precipitation mm (inches) 118 (4.6) 126 (5.0) 145 (5.7) 128 (5.0) 105 (4.1) 118 (4.6) 124 (4.9) 104 (4.1) 120 (4.7) 124 (4.9) 164 (6.5) 168 (6.6)
Average precipitation days (≥ 1 mm) 13 15 15 14 12 13 14 13 12 13 15 15

Monthly sunshine hours in Harbour Breton, Newfoundland and Labrador, Canada §

The sunniest months in Harbour Breton are May, June and August, when the sun shines an average of 8 hours 20 minutes a day. Least sunny months in Harbour Breton: January, November and December receive an average of 3 hours 25 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Harbour Breton, Newfoundland and Labrador, Canada. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Mean monthly sunshine hours 86 135 193 207 253 243 241 269 219 178 122 106
Mean daily daylight hours 8h 55m 10h 16m 11h 56m 13h 39m 15h 8m 15h 53m 15h 28m 14h 9m 12h 30m 10h 47m 9h 17m 8h 29m

Solar UV radiation in Harbour Breton, Newfoundland and Labrador, Canada §

Harbour Breton experiences the highest level of ultraviolet (UV) radiation in May, June and August, when the maximum UV index can reach values of 8 - 10, which corresponds to the Very High category of sun exposure. January, November and December are in the Low exposure category. In these months, the maximum values of the UV index do not exceed 2. For more detailed information, check out our hourly Harbour Breton UV Index data.

Average daily maximum UV levels by month for Harbour Breton, Newfoundland and Labrador, Canada. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
UV Index (month maximum) 2 3 5 6 8 10 8 8 6 4 2 1

Detailed Monthly Weather Insights for Harbour Breton, Newfoundland and Labrador, Canada

Discover in-depth weather details for every month in Harbour Breton. Click through the links below for comprehensive overviews of temperature trends, precipitation levels, sunshine hours, and solar UV radiation specifics. Whether planning a visit or simply curious about Harbour Breton's climate nuances, these monthly breakdowns provide the information you need for an informed understanding of what to expect throughout the year.

Each link leads to a detailed account of the typical weather conditions for that month, providing both locals and tourists with vital information to plan their daily activities, wardrobe, and travel itineraries accordingly.