Climate of Sarnia

Sarnia has a continental climate. It is warm in the summer and cold in the winter. The average annual temperature for Sarnia is 12° degrees and there is about 375 mm of rain in a year. It is dry for 168 days a year with an average humidity of 79% and an UV-index of 3.

Climate averages for the whole year

Day: the average daily temperature during the day is between -2°C and 26°C
Night:the average nighttime temperature is between -8°C and 16°C
Sea temperature: the sea temperature is between 1°C and 26°C
Rain: it rains 132 days and there is a total of approximately 376 mm rainfall
Snow: it snows an average of 54 days per year
Sun hours: throughout the year there are 2451 sun hours

Maximum temperature:	between -2°C and 26°C
Warmest month:	26°C in July
Coldest month:	-2°C in January
Night temperature:	between -8°C and 16°C
Sea temperature:	between 1°C and 26°C
Dry days:	179 days
Days with rain:	132 days
Days with snow:	54 days
Total rain sum:	376 mm
Hours of sunshine:	2451 hours

Climate of Sarnia
Temperature graph
Precipitation graph
Climate chart of Sarnia
The best travel time for Sarnia
Climate of Sarnia by month
Experiences with the weather of Sarnia

Do you want to go to Sarnia?

These are the travel companies where you can book a trip to Sarnia:

Booking.com

Temperature graph

This graph shows the average maximum temperature (red) and minimum temperature (blue) for Sarnia.

Precipitation graph

This graph shows the average amount of rainfall per month for Sarnia.

Climate table of Sarnia

In this climate table you can see at a glance what the average weather per month is for Sarnia. The data has been collected over a 30-year period, from which an average per month has been derived. From year to year the differences may be larger or smaller, but with this climate table you have a good idea of what the weather for Sarnia might be like in a given month.

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Day temp. (°C)	-2	-1	4	11	19	23	26	25	22	15	8	1
Night temp. (°C)	-8	-7	-3	3	9	13	16	16	13	8	2	-3
Water temp. (°C)	3	1	1	6	10	22	26	25	23	19	13	8
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Precipitation (mm)	21	26	30	37	36	39	34	32	29	38	28	26
Days with rain	6	6	9	14	14	13	14	12	12	14	9	9
Days with snow	14	13	8	2	-	-	-	-	-	-	4	13
Dry days	11	9	14	14	17	17	17	19	18	17	17	9
	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Sun hours per day	3	4	5	7	9	10	11	11	8	5	4	3
Wind force (Bft)	3	3	3	3	3	3	2	2	3	3	3	3
UV-index	1	2	2	3	5	5	6	6	3	2	2	1

Best time to visit Sarnia

The best time to visit Sarnia in Canada is from May through September. In this period you have a pleasant temperature and almost no precipitation. The highest average temperature in Sarnia is 26°C in July and the lowest is -2°C in January. The highest water temperature is 26°C and at its coldest the water is 1°C.

Climate of Sarnia by month

What is the average climate in a given month for Sarnia? Click on a month to see all monthly averages for sunshine, maximum and minimum temperatures, percent chance of rain per day, snowfall and number of rainy days.

January