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 25° degrees and there is about 148 inch 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 |
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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. (°F) | 28 | 30 | 39 | 52 | 66 | 73 | 78 | 78 | 71 | 58 | 46 | 34 |
Night temp. (°F) | 18 | 19 | 27 | 37 | 49 | 56 | 61 | 61 | 55 | 46 | 35 | 26 |
Water temp. (°F) | 38 | 33 | 34 | 42 | 51 | 71 | 78 | 77 | 74 | 67 | 56 | 46 |
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
Precipitation (inch) | 8 | 10 | 12 | 15 | 14 | 15 | 13 | 13 | 11 | 15 | 11 | 10 |
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 78°F in July and the lowest is 28°F in January. The highest water temperature is 78°F and at its coldest the water is 33°F.
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.
Sarnia weather experiences
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