Oshawa
August
Weather in Oshawa for August 2025
Your guide to Oshawa weather in August - trends and predictions
In general, the average temperature in Oshawa at the beginning of August is 24.9 °C. As the month progressed, temperatures tended to moderately fall, reaching an average of 23.3 °C by the end of August.
Expect significant rainfall in Oshawa during August, with an average of 18 rainy days.
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13
Dry days
18
Rainy days
0
Snow days
23°/15°
Temperatures
20 km/h
Avg max wind
74 %
Avg humidity
Oshawa in August average weather
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| Mon. | Tue. | Wed. | Thu. | Fri. | Sat. | Sun. |
|---|---|---|---|---|---|---|
| 1  25° | 2  26° | 3  25° | ||||
| 4  26° | 5 25° | 6 23° | 7  24° | 8 23° | 9 24° | 10 22° |
| 11  22° | 12 24° | 13 24° | 14 25° | 15 24° | 16 25° | 17 25° |
| 18 20° | 19 23° | 20 22° | 21 23° | 22 23° | 23 23° | 24 23° |
| 25  25° | 26 25° | 27 24° | 28 22° | 29 22° | 30 23° | 31 22° |
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Temperatures trend during August in Oshawa
See the weather trend as well as the moving average line
August weather day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 Aug. | Cloudy | 25° /17° | 0.4 mm | 6 | |
| 2 Aug. | Overcast | 26° /18° | 0.2 mm | 6 | |
| 3 Aug. | Patchy rain possible | 25° /19° | 6.9 mm | 6 | |
| 4 Aug. | Moderate rain at times | 26° /18° | 6.4 mm | 6 | |
| 5 Aug. | Cloudy | 25° /17° | 1.4 mm | 6 | |
| 6 Aug. | Overcast | 23° /15° | 0.4 mm | 6 | |
| 7 Aug. | Heavy rain at times | 24° /16° | 6.2 mm | 5 | |
| 8 Aug. | Moderate rain at times | 23° /17° | 1 mm | 5 | |
| 9 Aug. | Overcast | 24° /17° | 7.1 mm | 6 | |
| 10 Aug. | Moderate or heavy rain shower | 22° /16° | 5.6 mm | 5 | |
| 11 Aug. | Partly cloudy | 22° /15° | 1.4 mm | 6 | |
| 12 Aug. | Moderate or heavy rain shower | 24° /16° | 5.8 mm | 6 | |
| 13 Aug. | Patchy rain possible | 24° /16° | 0.4 mm | 5 | |
| 14 Aug. | Patchy rain possible | 25° /16° | 0.3 mm | 6 | |
| 15 Aug. | Moderate rain at times | 24° /17° | 3 mm | 6 | |
| 16 Aug. | Patchy rain possible | 25° /18° | 0.1 mm | 6 | |
| 17 Aug. | Patchy rain possible | 25° /18° | 3.5 mm | 6 | |
| 18 Aug. | Heavy rain at times | 20° /16° | 6.9 mm | 5 | |
| 19 Aug. | Partly cloudy | 23° /13° | 3.6 mm | 6 | |
| 20 Aug. | Heavy rain at times | 22° /13° | 0.6 mm | 5 | |
| 21 Aug. | Overcast | 23° /14° | 0 mm | 5 | |
| 22 Aug. | Cloudy | 23° /13° | 0 mm | 6 | |
| 23 Aug. | Heavy rain at times | 23° /15° | 2.7 mm | 6 | |
| 24 Aug. | Patchy rain possible | 23° /17° | 1.9 mm | 6 | |
| 25 Aug. | Mist | 25° /17° | 0.6 mm | 6 | |
| 26 Aug. | Overcast | 25° /15° | 0 mm | 6 | |
| 27 Aug. | Cloudy | 24° /15° | 0 mm | 6 | |
| 28 Aug. | Partly cloudy | 22° /14° | 0.4 mm | 6 | |
| 29 Aug. | Partly cloudy | 22° /13° | 0.2 mm | 6 | |
| 30 Aug. | Light rain shower | 23° /13° | 1.6 mm | 5 | |
| 31 Aug. | Partly cloudy | 22° /13° | 3.9 mm | 6 | |
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Important Notice
Our weather forecast for Oshawa 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 Oshawa forecast closer to your planned date for the most up-to-date weather information.
Oshawa in August - FAQ
What are the expected maximum and minimum temperatures in Oshawa during August?
During August, expect a variety of temperatures with highs around 23° and lows near 15°, suitable for diverse activities and preferences.
How much rainfall should be expected in Oshawa during August?
Moderate rainfall is anticipated in Oshawa during August, with a total of 91.1 mm spread over approximately 18 days. Considering plans for rainy days is advisable.
What are the typical wind conditions in Oshawa during August?
The average wind speed in Oshawa during August is 20 km/h, suggesting breezy to windy conditions, depending on your activities.
August rainfall patterns in Oshawa
Explore the daily rainfall trends and prepare for Oshawas August weather 💧
UV exposure in Oshawa during August
Stay informed about UV levels for safe outdoor activities throughout the month of August ☀️
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