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Monthly climate in Miramichi, Canada

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Miramichi features a humid continental climate (Dfb). Temperatures typically range between -8 °C (17 °F) and 20 °C (68 °F) through the year, but rarely can drop to -30 °C (-22 °F) or can rise to as high as 35 °C (96 °F). The average annual precipitation amounts to about 1114 mm (43.8 inches) and receives 131 rainy days on the 1 mm (0.04 inches) threshold annually. Miramichi enjoys an average of 2939 hours of sunshine throughout the year, and daylight varies from 8 hours 33 minutes to 15 hours 49 minutes per day.

Monthly average temperatures in Miramichi, Canada

The warmest months in Miramichi are June, July and August, with daily mean temperatures ranging from 16 to 20 °C (61 - 68 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from -8 to -5 °C (17 - 23 °F) throughout the day. On average each year, Miramichi experiences 37 days above 25 °C (77.0 °F) and 154 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Miramichi. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum13°C
(55°F)		12°C
(53°F)		16°C
(61°F)		20°C
(69°F)		31°C
(88°F)		35°C
(96°F)		33°C
(93°F)		32°C
(91°F)		30°C
(86°F)		24°C
(76°F)		23°C
(74°F)		16°C
(60°F)
Mean maximum7°C
(45°F)		8°C
(47°F)		11°C
(51°F)		17°C
(63°F)		27°C
(80°F)		29°C
(84°F)		31°C
(87°F)		31°C
(88°F)		28°C
(82°F)		21°C
(70°F)		18°C
(64°F)		12°C
(53°F)
Average high-3°C
(26°F)		-2°C
(28°F)		1°C
(35°F)		8°C
(47°F)		16°C
(60°F)		22°C
(71°F)		25°C
(77°F)		25°C
(77°F)		20°C
(68°F)		13°C
(56°F)		5°C
(42°F)		-1°C
(31°F)
Daily mean-8°C
(17°F)		-7°C
(19°F)		-3°C
(27°F)		3°C
(38°F)		10°C
(50°F)		16°C
(61°F)		20°C
(68°F)		19°C
(67°F)		15°C
(58°F)		8°C
(48°F)		1°C
(35°F)		-5°C
(23°F)
Average low-13°C
(8°F)		-13°C
(9°F)		-7°C
(19°F)		-1°C
(31°F)		4°C
(40°F)		10°C
(50°F)		14°C
(58°F)		14°C
(58°F)		9°C
(49°F)		4°C
(40°F)		-2°C
(28°F)		-9°C
(16°F)
Mean minimum-25°C
(-12°F)		-24°C
(-11°F)		-18°C
(-0°F)		-7°C
(19°F)		-1°C
(30°F)		3°C
(37°F)		9°C
(48°F)		8°C
(46°F)		2°C
(36°F)		-3°C
(26°F)		-11°C
(13°F)		-20°C
(-4°F)
Minimum-30°C
(-22°F)		-27°C
(-17°F)		-21°C
(-5°F)		-12°C
(12°F)		-3°C
(27°F)		-0°C
(32°F)		7°C
(46°F)		6°C
(43°F)		-1°C
(31°F)		-7°C
(21°F)		-18°C
(-1°F)		-26°C
(-15°F)

Compare climate in Miramichi with other places

Compare temperature, precipitation, sunshine, UV index in Miramichi, Canada with other places around the world.

Monthly average precipitation in Miramichi, Canada

Miramichi usually has the most precipitation in April, May and November, with an average of 12 rainy days and 111 mm (4.4 inches) of precipitation per month. The driest months in Miramichi are June, July and August. On average, 74 mm (2.9 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Miramichi. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)101 (4.0)90 (3.6)88 (3.5)102 (4.0)102 (4.0)75 (3.0)77 (3.0)70 (2.7)88 (3.5)93 (3.7)129 (5.1)99 (3.9)
Average precipitation days (≥ 1 mm)91210121211101010121310

Monthly sunshine hours in Miramichi, Canada

The sunniest months in Miramichi are June, July and August, when the sun shines an average of 11 hours 4 minutes a day. Least sunny months in Miramichi: January, November and December receive an average of 4 hours 58 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Miramichi. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours127201240237296324346348272214166163
Mean daily daylight hours8h 58m10h 18m11h 56m13h 38m15h 5m15h 49m15h 25m14h 7m12h 29m10h 49m9h 19m8h 33m

Solar UV radiation in Miramichi, Canada

Miramichi experiences the highest level of ultraviolet (UV) radiation in May, June and August, when the maximum UV index can reach values of 8 - 9, which corresponds to the Very High category of sun exposure. January, February and December are in the Low / Moderate exposure category. In these months, the maximum values of the UV index do not exceed 3. For more detailed information, check out our hourly Miramichi UV Index data.

Average daily maximum UV levels by month for Miramichi. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)235789887432