Sarnia climate guide, Ontario

Welcome to the Sarnia climate guide, which shows average weather for Sarnia, Ontario, Canada. Check maximum temperature, the number of days with rainfall, sea temperature and daily hours of sunshine for each month of the year.

Sarnia climate guide: quick links

Maximum temperature (°C) in Sarnia

5
12
19
24
27
26
22
16
8
1
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
-2
-1

Days with some rain in Sarnia

12
10
12
12
10
10
9
10
10
11
12
14
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Hours of sunshine in Sarnia

3
4
4
6
8
9
9
8
6
5
3
2
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Sea temperature (°C) in Sarnia

3
2
2
4
9
15
21
23
20
15
10
5
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Sarnia, Ontario map © Weather2Travel.com
Sarnia, Ontario map © Weather2Travel.com
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The Sarnia climate guide is provided by Weather2Travel.com. For more information about the weather in Sarnia, Ontario, Canada including monthly rainfall, mininum temperature, UV maximum, heat & humidity and daylight hours visit the Ontario climate guide page.

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