Lambton County (Sarnia)
August
Weather in Lambton County for August 2026
Your guide to Lambton County weather in August - trends and predictions
So far, August 2026 in Lambton County is slightly warmer than the historical average by 1.6 °C.
The forecast for the next days in Lambton County predicts temperatures to be around 27 °C, close to the historical average.
In general, the average temperature in Lambton County at the beginning of August is 25.7 °C. As the month progressed, temperatures tended to moderately fall, reaching an average of 24.3 °C by the end of August.
Lambton County in August brings notable rainfall, with an average of 17 rainy days and a total precipitation of 116.6 mm.
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Temperatures
Rain 🌧️
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14
Dry days
17
Rainy days
0
Snow days
24°/16°
Temperatures
21 km/h
Avg max wind
76 %
Avg humidity
Lambton County Weather August
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Temperatures trend during August in Lambton County
See the weather trend as well as the moving average line
August weather in Lambton County day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 Aug. |  Cloudy | 26° /17° | 1.6 mm | 7 | |
| 2 Aug. |  Overcast | 26° /17° | 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° /16° | 0 mm | 7 | |
| 6 Aug. |  Heavy rain at times | 24° /18° | 7.9 mm | 6 | |
| 7 Aug. | Overcast | 25° /17° | 3.4 mm | 6 | |
| 8 Aug. |  Patchy rain possible | 28° /17° | 8.7 mm | 7 | |
| 9 Aug. | Patchy rain possible | 28° /17° | 0 mm | 7 | |
| 10 Aug. | Patchy rain possible | 26° /16° | 2.1 mm | 6 | |
| 11 Aug. | Patchy rain possible | 26° /16° | 0.3 mm | 7 | |
| 12 Aug. |  Moderate or heavy rain shower | 28° /17° | 10.5 mm | 6 | |
| 13 Aug. | Sunny | 31° /18° | 0 mm | 6.5 | |
| 14 Aug. | Sunny | 28° /18° | 0 mm | 7.4 | |
| 15 Aug. | Sunny | 28° /16° | 0 mm | 2.9 | |
| 16 Aug. |  Partly cloudy | 28° /20° | 5.1 mm | 7.6 | |
| 17 Aug. | Sunny | 25° /18° | 0.5 mm | 6 | |
| 18 Aug. | Sunny | 29° /16° | 0 mm | 7 | |
| 19 Aug. | Partly cloudy | 27° /19° | 2.4 mm | 7 | |
| 20 Aug. | Partly cloudy | 27° /19° | 6.6 mm | 7 | |
| 21 Aug. | Sunny | 23° /17° | 0 mm | 6 | |
| 22 Aug. | Sunny | 23° /14° | 0 mm | 6 | |
| 23 Aug. | Sunny | 28° /15° | 0 mm | 7 | |
| 24 Aug. | Partly cloudy | 29° /17° | 0 mm | 7 | |
| 25 Aug. | Sunny | 32° /20° | 0.4 mm | 8 | |
| 26 Aug. | Sunny | 25° /18° | 0 mm | 7 | |
| 27 Aug. | Cloudy | 24° /14° | 0.7 mm | 6 | |
| 28 Aug. | Partly cloudy | 21° /14° | 15.1 mm | 5 | |
| 29 Aug. |  Fog | 22° /13° | 0.2 mm | 5 | |
| 30 Aug. | Patchy rain possible | 23° /12° | 3.2 mm | 5 | |
| 31 Aug. | Sunny | 23° /14° | 0.6 mm | 6 | |
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Important Notice
Our weather forecast for Lambton County 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 Lambton County forecast closer to your planned date for the most up-to-date weather information.
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Lambton County in August - FAQ
What are the expected maximum and minimum temperatures in Lambton County during August?
During August, expect a variety of temperatures with highs around 24° and lows near 16°, suitable for diverse activities and preferences.
How much rainfall should be expected in Lambton County during August?
Significant rainfall exceeding 116.6 mm is expected in Lambton County during August, occurring over more than 17 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in Lambton County during August?
The average wind speed in Lambton County during August is 21 km/h, suggesting breezy to windy conditions, depending on your activities.
August rainfall patterns in Lambton County
Explore the daily rainfall trends and prepare for Lambton Countys August weather 💧
Typically, Lambton County has 17 rainy days in August with a total of 116.6 mm of rainfall.
UV exposure in Lambton County during August
Stay informed about UV levels for safe outdoor activities throughout the month of August ☀️
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