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Monthly climate in Yarmouth, Canada

Last updated: July 31, 2025

Under the Köppen–Geiger climate classification Yarmouth features a humid continental climate (Dfb). Temperatures typically range between 0 °C (32 °F) and 17 °C (63 °F) through the year, but rarely can drop to -12 °C (11 °F) or can rise to as high as 22 °C (72 °F). The average annual precipitation amounts to about 1548 mm (61.0 inches) and receives 148 rainy days on the 1 mm (0.04 inches) threshold annually. Yarmouth enjoys an average of 2641 hours of sunshine throughout the year, and daylight varies from 8 hours 57 minutes to 15 hours 23 minutes per day.

Monthly average temperatures in Yarmouth, Canada

The warmest months in Yarmouth are July, August and September, with daily mean temperatures ranging from 15 to 17 °C (60 - 63 °F) throughout the day. The coldest temperatures usually occur in January, February and March, when daily mean temperatures range from 0 to 1 °C (32 - 34 °F) throughout the day. On average each year, Yarmouth experiences 0 days above 25 °C (77.0 °F) and 71 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Yarmouth. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Maximum13°C
(55°F)		10°C
(50°F)		11°C
(51°F)		13°C
(57°F)		15°C
(60°F)		20°C
(69°F)		20°C
(69°F)		22°C
(72°F)		20°C
(69°F)		20°C
(68°F)		17°C
(63°F)		14°C
(57°F)
Mean maximum10°C
(50°F)		9°C
(48°F)		8°C
(47°F)		11°C
(52°F)		14°C
(57°F)		17°C
(62°F)		19°C
(67°F)		21°C
(69°F)		19°C
(67°F)		18°C
(65°F)		16°C
(61°F)		13°C
(55°F)
Average high3°C
(38°F)		3°C
(37°F)		3°C
(38°F)		7°C
(44°F)		10°C
(51°F)		14°C
(57°F)		17°C
(63°F)		18°C
(65°F)		17°C
(63°F)		14°C
(58°F)		10°C
(50°F)		5°C
(41°F)
Daily mean0°C
(33°F)		-0°C
(32°F)		1°C
(34°F)		5°C
(41°F)		9°C
(48°F)		12°C
(55°F)		16°C
(60°F)		17°C
(63°F)		15°C
(60°F)		12°C
(55°F)		7°C
(46°F)		3°C
(37°F)
Average low-2°C
(28°F)		-2°C
(28°F)		-1°C
(31°F)		4°C
(39°F)		7°C
(45°F)		11°C
(52°F)		14°C
(58°F)		16°C
(60°F)		14°C
(58°F)		11°C
(52°F)		5°C
(42°F)		1°C
(33°F)
Mean minimum-9°C
(15°F)		-9°C
(16°F)		-8°C
(17°F)		-0°C
(32°F)		4°C
(39°F)		8°C
(46°F)		12°C
(53°F)		14°C
(57°F)		10°C
(51°F)		6°C
(43°F)		-2°C
(29°F)		-6°C
(21°F)
Minimum-12°C
(11°F)		-11°C
(13°F)		-12°C
(11°F)		-1°C
(30°F)		3°C
(37°F)		5°C
(42°F)		11°C
(52°F)		13°C
(55°F)		9°C
(48°F)		3°C
(38°F)		-7°C
(20°F)		-10°C
(15°F)

Compare climate in Yarmouth with other places

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

Monthly average precipitation in Yarmouth, Canada

Yarmouth usually has the most precipitation in April, November and December, with an average of 14 rainy days and 158 mm (6.2 inches) of precipitation per month. The driest months in Yarmouth are January, July and August. On average, 107 mm (4.2 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Yarmouth. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Average precipitation mm (inches)109 (4.3)137 (5.4)128 (5.0)139 (5.5)126 (5.0)119 (4.7)106 (4.2)105 (4.2)112 (4.4)133 (5.3)164 (6.4)171 (6.7)
Average precipitation days (≥ 1 mm)1215141412101298121416

Monthly sunshine hours in Yarmouth, Canada

The sunniest months in Yarmouth are June, July and August, when the sun shines an average of 9 hours 43 minutes a day. Least sunny months in Yarmouth: January, February and December receive an average of 3 hours 45 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Yarmouth. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
 JanFebMarAprMayJunJulAugSepOctNovDec
Mean monthly sunshine hours87142229244282297291306262227157111
Mean daily daylight hours9h 19m10h 29m11h 57m13h 28m14h 45m15h 23m15h 2m13h 54m12h 27m10h 57m9h 37m8h 57m

Solar UV radiation in Yarmouth, Canada

Yarmouth experiences the highest level of ultraviolet (UV) radiation in May, June and August, when the maximum UV index can reach values of 9 - 10, which corresponds to the Very High category of sun exposure. January, November 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 Yarmouth UV Index data.

Average daily maximum UV levels by month for Yarmouth. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
 JanFebMarAprMayJunJulAugSepOctNovDec
UV Index (month maximum)2458910998532