Sarnia Weather History Ontario, Canada

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Past date: Past date must be from 1st Jan, 2009 onwards.

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Daily and hourly data from 1 Jan 2009 onwards.
Yearly Monthly Averages
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Sun 19 Apr, 2026 Weather in Sarnia

Sunrise: 06:41 AM Sunset: 08:17 PM	Moonrise: 07:35 AM Moonset: 11:44 PM	Max: 5.6 °c	Min: 2.1 °c	Avg: 4.0 °c	Precip: 0.00 mm	Max Wind: 33.8 kph

	Sun 19 0:00 am	Sun 19 3:00 am	Sun 19 6:00 am	Sun 19 9:00 am	Sun 19 12:00 pm	Sun 19 3:00 pm	Sun 19 6:00 pm	Sun 19 9:00 pm
Icon
Temp	5.2°c	3.2°c	2.2°c	3.6°c	5.2°c	5.5°c	4.5°c	2.4°c
Wind	18.4 kmph	19.1 kmph	21.6 kmph	23.8 kmph	32.0 kmph	29.2 kmph	28.8 kmph	20.9 kmph
Precip	0.00 mm	0.00 mm	0.00 mm	0.00 mm	0.00 mm	0.00 mm	0.00 mm	0.00 mm
Cloud	74%	54%	7%	31%	78%	92%	85%	51%
Humidity	66%	70%	71%	59%	49%	52%	62%	74%
Pressure	1015 mb	1016 mb	1017 mb	1018 mb	1018 mb	1018 mb	1019 mb	1022 mb

Sarnia Annual Weather Averages

Month	High Temp	Low Temp	Avg Temp	Sunshine Hours	Rainfall	Rain days	Pressure
January	-2°C / 29°F	-7°C / 19°F	-4°C / 24°F	70 hours	66.01 mm / 2.60 In	11 days	1018 mb / 31 In
February	-1°C / 31°F	-7°C / 20°F	-4°C / 25°F	78 hours	72.02 mm / 2.84 In	9 days	1018 mb / 31 In
March	5°C / 41°F	-2°C / 28°F	1°C / 34°F	111 hours	96.43 mm / 3.80 In	8 days	1018 mb / 31 In
April	11°C / 51°F	3°C / 37°F	7°C / 44°F	130 hours	117.64 mm / 4.63 In	9 days	1015 mb / 30 In
May	18°C / 64°F	9°C / 48°F	13°C / 56°F	177 hours	106.68 mm / 4.20 In	8 days	1016 mb / 30 In
June	23°C / 73°F	14°C / 58°F	18°C / 65°F	197 hours	112.33 mm / 4.42 In	8 days	1013 mb / 30 In
July	26°C / 78°F	18°C / 64°F	22°C / 71°F	226 hours	97.98 mm / 3.86 In	7 days	1014 mb / 30 In
August	25°C / 77°F	17°C / 63°F	21°C / 70°F	220 hours	89.84 mm / 3.54 In	7 days	1015 mb / 30 In
September	22°C / 72°F	14°C / 57°F	18°C / 64°F	203 hours	82.31 mm / 3.24 In	7 days	1017 mb / 31 In
October	15°C / 59°F	8°C / 47°F	11°C / 53°F	149 hours	107.36 mm / 4.23 In	8 days	1016 mb / 30 In
November	8°C / 46°F	2°C / 35°F	5°C / 41°F	134 hours	77.16 mm / 3.04 In	8 days	1018 mb / 31 In
December	2°C / 36°F	-2°C / 28°F	0°C / 32°F	78 hours	79.85 mm / 3.14 In	10 days	1018 mb / 31 In

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