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Canada weather

Weather in Oshawa for October 2025

Your guide to Oshawa weather in October - trends and predictions

    Temperatures

  • Until now, October 2025 in Oshawa has been nearly identical to the historical average, with a temperature of 15.1 °C (showing only a slight deviation of -0.3 °C).

  • The forecast for the upcoming days in Oshawa predicts a temperature of 8.1 °C, which is slightly above the historical average.

  • In general, the average temperature in Oshawa at the beginning of October is 20.3 °C. As the month progressed, temperatures tended to significantly cool down, reaching an average of 10.6 °C by the end of October.

    • Rain 🌧️

  • Oshawa experiences moderate rainfall in October, with an average of 8 rainy days and a total precipitation of 51.4 mm.

    • More

  • New! Chat with our AI weatherman - it’s amazing and free.

Average dry days
23
Dry days
Average rainy days
8
Rainy days
Average snowy days
0
Snow days
Average temperatures
15°/7°
Temperatures
Average wind speed
23 km/h
Avg max wind
Average humidity
76 %
Avg humidity

Oshawa Weather October

Move between months or click on a day
September
November
Sun.Mon.Tue.Wed.Thu.Fri.Sat.
1
Mist
20°
2
Overcast
21°
3
Mist
24°
4
Mist
21°
5
Fog
20°
6
Moderate rain
21°
7
Light rain
15°
8
Patchy rain possible
14°
9
Patchy rain possible
13°
10
Partly cloudy
14°
11
Patchy rain possible
16°
12
Overcast
17°
13
Overcast
13°
14
Patchy rain possible
14°
15
Overcast
11°
16
Patchy rain possible
14°
17
Overcast
13°
18
Overcast
16°
19
Light rain
16°
20
Light rain shower
15°
21
Patchy rain possible
16°
22
Patchy rain possible
12°
23
Cloudy
14°
24
Light rain shower
12°
25
Light drizzle
13°
26
Light rain
12°
27
Patchy rain possible
13°
28
Cloudy
12°
29
Moderate rain
10°
30
Moderate rain
9°
31
Moderate rain
5°

Temperatures trend during October in Oshawa

See the weather trend as well as the moving average line

October weather in Oshawa day by day

Click on a date for more information
September November
Date Weather Temperatures Rain UV More
1 Oct. Mist
Mist
 20° /10° 2 mm 5
2 Oct. Overcast
Overcast
 21° /12° 1.9 mm 5
3 Oct. Mist
Mist
 24° /12° 0 mm 6
4 Oct. Mist
Mist
 21° /11° 0 mm 5
5 Oct. Fog
Fog
 20° /13° 0.5 mm 5
6 Oct. Moderate rain
Moderate rain
 21° /12° 13.9 mm 5
7 Oct. Light rain
Light rain
 15° /9° 7 mm 3
8 Oct. Patchy rain possible
Patchy rain possible
 14° /7° 0.3 mm 4
9 Oct. Patchy rain possible
Patchy rain possible
 13° /4° 0 mm 3
10 Oct. Partly cloudy
Partly cloudy
 14° /5° 0 mm 4
11 Oct. Patchy rain possible
Patchy rain possible
 16° /7° 0.2 mm 3
12 Oct. Overcast
Overcast
 17° /8° 0 mm 4
13 Oct. Overcast
Overcast
 13° /7° 2.4 mm 3
14 Oct. Patchy rain possible
Patchy rain possible
 14° /6° 0.1 mm 4
15 Oct. Overcast
Overcast
 11° /4° 0.1 mm 3
16 Oct. Patchy rain possible
Patchy rain possible
 14° /4° 0.1 mm 4
17 Oct. Overcast
Overcast
 13° /4° 0 mm 3
18 Oct. Overcast
Overcast
 16° /6° 2.6 mm 4
19 Oct. Light rain
Light rain
 16° /10° 22.3 mm 4
20 Oct. Light rain shower
Light rain shower
 15° /9° 12.4 mm 4
21 Oct. Patchy rain possible
Patchy rain possible
 16° /7° 1.4 mm 4
22 Oct. Patchy rain possible
Patchy rain possible
 12° /7° 6.8 mm 3
23 Oct. Cloudy
Cloudy
 14° /5° 1.1 mm 3
24 Oct. Light rain shower
Light rain shower
 12° /5° 0.1 mm 3
25 Oct. Light drizzle
Light drizzle
 13° /6° 1 mm 3
26 Oct. Light rain
Light rain
 12° /6° 0.4 mm 3
27 Oct. Patchy rain possible
Patchy rain possible
 13° /6° 0.6 mm 3
28 Oct. Cloudy
Cloudy
 12° /4° 0.2 mm 3
29 Oct. Moderate rain
Moderate rain
 10° /2° 10.4 mm 3
30 Oct. Moderate rain
Moderate rain
 9° /4° 12 mm 0.1
31 Oct. Moderate rain
Moderate rain
 5° /3° 14.8 mm 0.1
Next
Important Notice
Our weather forecast for Oshawa in October 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.
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Oshawa in October - FAQ

What are the expected maximum and minimum temperatures in Oshawa during October?
During October, expect a variety of temperatures with highs around 15° and lows near 7°, suitable for diverse activities and preferences.
How much rainfall should be expected in Oshawa during October?
Moderate rainfall is anticipated in Oshawa during October, with a total of 51.4 mm spread over approximately 8 days. Considering plans for rainy days is advisable.
What are the typical wind conditions in Oshawa during October?
The average wind speed in Oshawa during October is 23 km/h, suggesting breezy to windy conditions, depending on your activities.

October rainfall patterns in Oshawa

Explore the daily rainfall trends and prepare for Oshawas October weather 💧

UV exposure in Oshawa during October

Stay informed about UV levels for safe outdoor activities throughout the month of October ☀️

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Get accurate weather forecasts for Oshawa, located at latitude 43.9 and longitude -78.85. Stay updated with localized weather information tailored for Oshawa.

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