Monthly Average Rainy days in Sarnia

The number of days each month with rain, snow and hail in Sarnia (Ontario), Canada.

On average, December is the most rainy with 12 days of rain/snow.
On average, July is the driest month with 9 rainy days.
The average annual number of rainy days is 129.

Current rainfall in Sarnia

Fri Nov 22

8°C | 2°C

36 km/h

4 mm

broken clouds and rain

hourly forecast

Sat Nov 23

8°C | 4°C

25 km/h

overcast and no rain

hourly forecast

Sun Nov 24

8°C | 3°C

14 km/h

0.2 mm

overcast and small chance of slight rain

hourly forecast

5-Day Forecast 10-Day Forecast

Interested in more climate information?

This site provides you with all the information you need about the climate in Sarnia.

Our site offers climate and forecast data for every country in the world. Are you going to Canada? On this website you can find historical weather averages for many cities in Canada. Not sure yet where to go? We now have a tool which recommends destinations that suit your ideal travel conditions. Find out where to go with our weather planner.

Travel Inspiration

The 5 most beautiful lakes in Canada

Explore Canada's stunning lakes: Lake Louise, Lake Superior, Maligne Lake, Emerald Lake, and Lake Okanagan, each offering unique beauty and activities.

Canoeing the south Nahannii

The South Nahanni in the northwest of Canada is one of the most impressive wilderness rivers in the world. Canoeing the south Nahanni is something you must add to your bucket list.

Drive the Dempster highway

The Dempster highway, the world's northernmost highway and one of the most spectacular routes in North America. The Dempster Highway is one for the bucket list.

See Polar Bears in Churchill Canada

Thousands of bears gather at the small town of Churchill. In the evening the northern lights give a light show against the dark evening sky. An unforgettable experience.