Sarnia
August
Weather in Sarnia for August 2027
Your guide to Sarnia weather in August - trends and predictions
In general, the average temperature in Sarnia at the beginning of August is 25.4 °C. As the month progressed, temperatures tended to noticeably cool down, reaching an average of 23.3 °C by the end of August.
The climate of Sarnia in August is notably wet, with an average of 11 rainy days, and a total of 133.3 mm of precipitation.
Is August a good time to visit Sarnia? check out the best time to travel to Sarnia page.
✨ Is August a good time to visit Sarnia? – Ask the AI Weatherman
Temperatures
Rain 🌧️
More
20
Dry days
11
Rainy days
0
Snow days
25°/16°
Temperatures
20 km/h
Avg max wind
76 %
Avg humidity
Sarnia Weather August
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Temperatures trend during August in Sarnia
See the weather trend as well as the moving average line
August weather in Sarnia day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 Aug. |  Patchy rain possible | 26° /18° | 1.6 mm | 7 | |
| 2 Aug. |  Moderate rain | 25° /18° | 11.9 mm | 6 | |
| 3 Aug. |  Sunny | 27° /17° | 0.2 mm | 8 | |
| 4 Aug. | Sunny | 26° /17° | 0 mm | 7 | |
| 5 Aug. |  Overcast | 26° /17° | 0 mm | 7 | |
| 6 Aug. |  Heavy rain at times | 24° /18° | 7.9 mm | 6 | |
| 7 Aug. |  Light rain | 25° /18° | 3.4 mm | 6 | |
| 8 Aug. | Light rain | 28° /18° | 8.7 mm | 7 | |
| 9 Aug. | Patchy rain possible | 28° /17° | 0 mm | 7 | |
| 10 Aug. | Patchy rain possible | 26° /17° | 2.1 mm | 6 | |
| 11 Aug. | Patchy rain possible | 26° /16° | 0.3 mm | 7 | |
| 12 Aug. | Moderate rain | 28° /18° | 10.5 mm | 6 | |
| 13 Aug. | Light rain | 24° /17° | 3.1 mm | 6 | |
| 14 Aug. | Patchy rain possible | 25° /16° | 0.8 mm | 6 | |
| 15 Aug. | Light rain | 26° /16° | 6.6 mm | 6 | |
| 16 Aug. | Light rain | 26° /18° | 4.7 mm | 5 | |
| 17 Aug. |  Moderate or heavy rain shower | 24° /18° | 5.7 mm | 6 | |
| 18 Aug. | Patchy rain possible | 24° /15° | 2 mm | 6 | |
| 19 Aug. | Patchy rain possible | 23° /15° | 2.3 mm | 5 | |
| 20 Aug. | Overcast | 23° /16° | 0 mm | 6 | |
| 21 Aug. | Sunny | 23° /15° | 0 mm | 6 | |
| 22 Aug. | Moderate rain | 23° /15° | 10.7 mm | 5 | |
| 23 Aug. | Moderate rain | 24° /15° | 22.2 mm | 5 | |
| 24 Aug. | Light rain | 25° /15° | 5.6 mm | 5 | |
| 25 Aug. | Overcast | 23° /15° | 0.2 mm | 5 | |
| 26 Aug. | Overcast | 24° /15° | 0.5 mm | 6 | |
| 27 Aug. | Patchy rain possible | 25° /15° | 1.1 mm | 6 | |
| 28 Aug. | Moderate rain | 22° /14° | 11.4 mm | 6 | |
| 29 Aug. |  Fog | 24° /13° | 0.2 mm | 6 | |
| 30 Aug. | Light rain | 23° /14° | 8.1 mm | 4 | |
| 31 Aug. | Patchy rain possible | 24° /15° | 1.5 mm | 5 | |
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Important Notice
Our weather forecast for Sarnia in August is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the Sarnia forecast closer to your planned date for the most up-to-date weather information.
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Sarnia in August - FAQ
What are the expected maximum and minimum temperatures in Sarnia during August?
During August, expect a variety of temperatures with highs around 25° and lows near 16°, suitable for diverse activities and preferences.
How much rainfall should be expected in Sarnia during August?
Significant rainfall exceeding 133.3 mm is expected in Sarnia during August, occurring over more than 11 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in Sarnia during August?
The average wind speed in Sarnia during August is 20 km/h, suggesting breezy to windy conditions, depending on your activities.
August rainfall patterns in Sarnia
Explore the daily rainfall trends and prepare for Sarnias August weather 💧
Typically, Sarnia has 11 rainy days in August with a total of 133.3 mm of rainfall.
UV exposure in Sarnia during August
Stay informed about UV levels for safe outdoor activities throughout the month of August ☀️
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