Ottawa
October
Weather in Ottawa for October 2025
Your guide to Ottawa weather in October - trends and predictions
With an average of 2 snowy days, Ottawa usually enjoys a light touch of snow in October.
In general, the average temperature in Ottawa at the beginning of October is 20.6 °C. As the month progressed, temperatures tended to significantly cool down, reaching an average of 11.3 °C by the end of October.
The climate of Ottawa in October is notably wet, with an average of 13 rainy days, and a total of 85.1 mm of precipitation.
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Snow Forecast ❄️
Temperatures
Rain 🌧️
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16
Dry days
13
Rainy days
2
Snow days
14°/6°
Temperatures
17 km/h
Avg max wind
76 %
Avg humidity
Ottawa in October average weather
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| Mon. | Tue. | Wed. | Thu. | Fri. | Sat. | Sun. |
|---|---|---|---|---|---|---|
| 1  21° | 2 21° | 3 24° | 4 24° | 5  22° | ||
| 6  17° | 7 15° | 8 11° | 9 11° | 10 11° | 11 14° | 12 12° |
| 13 11° | 14 11° | 15 8° | 16 12° | 17 15° | 18 15° | 19 13° |
| 20 14° | 21 18° | 22  13° | 23 13° | 24 10° | 25 13° | 26 13° |
| 27 12° | 28 10° | 29 8° | 30  11° | 31 12° |
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Temperatures trend during October in Ottawa
See the weather trend as well as the moving average line
October weather day by day
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| Date | Weather | Temperatures | Rain | Snow | More |
|---|---|---|---|---|---|
| 1 Oct. | Mist | 21° /12° | 0 mm | 0 cm | |
| 2 Oct. | Mist | 21° /11° | 15.2 mm | 0 cm | |
| 3 Oct. | Mist | 24° /11° | 0 mm | 0 cm | |
| 4 Oct. | Mist | 24° /11° | 0 mm | 0 cm | |
| 5 Oct. | Overcast | 22° /14° | 0 mm | 0 cm | |
| 6 Oct. | Light rain shower | 17° /10° | 9.7 mm | 0 cm | |
| 7 Oct. | Light rain shower | 15° /7° | 20 mm | 0 cm | |
| 8 Oct. | Patchy rain possible | 11° /4° | 0.1 mm | 0 cm | |
| 9 Oct. | Light rain shower | 11° /3° | 0.9 mm | 0.4 cm | |
| 10 Oct. | Light rain shower | 11° /5° | 1.4 mm | 0 cm | |
| 11 Oct. | Light rain shower | 14° /5° | 2.8 mm | 0 cm | |
| 12 Oct. | Patchy rain possible | 12° /5° | 1.9 mm | 0 cm | |
| 13 Oct. | Patchy rain possible | 11° /3° | 0 mm | 0 cm | |
| 14 Oct. | Patchy rain possible | 11° /4° | 0 mm | 0 cm | |
| 15 Oct. | Patchy rain possible | 8° /4° | 0.1 mm | 0 cm | |
| 16 Oct. | Patchy rain possible | 12° /5° | 0 mm | 0 cm | |
| 17 Oct. | Overcast | 15° /4° | 0 mm | 0 cm | |
| 18 Oct. | Patchy rain possible | 15° /3° | 0 mm | 0 cm | |
| 19 Oct. | Overcast | 13° /5° | 0 mm | 0 cm | |
| 20 Oct. | Light rain shower | 14° /8° | 0.8 mm | 0 cm | |
| 21 Oct. | Light rain shower | 18° /8° | 6.4 mm | 0 cm | |
| 22 Oct. | Light rain | 13° /6° | 5.3 mm | 0 cm | |
| 23 Oct. | Overcast | 13° /4° | 6.6 mm | 0 cm | |
| 24 Oct. | Overcast | 10° /3° | 0 mm | 0 cm | |
| 25 Oct. | Light rain | 13° /5° | 4.1 mm | 0 cm | |
| 26 Oct. | Light drizzle | 13° /7° | 4.8 mm | 0 cm | |
| 27 Oct. | Light drizzle | 12° /6° | 0.9 mm | 0 cm | |
| 28 Oct. | Patchy rain possible | 10° /2° | 0.6 mm | 0 cm | |
| 29 Oct. | Overcast | 8° /1° | 2.5 mm | 0 cm | |
| 30 Oct. | Moderate or heavy snow showers | 11° /5° | 0.6 mm | 0.5 cm | |
| 31 Oct. | Overcast | 12° /5° | 0.2 mm | 0 cm | |
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Important Notice
Our weather forecast for Ottawa 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 Ottawa forecast closer to your planned date for the most up-to-date weather information.
Ottawa in October - FAQ
What are the expected maximum and minimum temperatures in Ottawa during October?
During October, expect a variety of temperatures with highs around 14° and lows near 6°, suitable for diverse activities and preferences.
How much rainfall should be expected in Ottawa during October?
Moderate rainfall is anticipated in Ottawa during October, with a total of 85.1 mm spread over approximately 13 days. Considering plans for rainy days is advisable.
Will it snow in Ottawa in October 2025?
Ottawa experiences an average snowfall of 0.885 cm during October, occurring over 2 days.
What are the typical wind conditions in Ottawa during October?
The average wind speed in Ottawa during October is 17 km/h, suggesting breezy to windy conditions, depending on your activities.
Ottawa snow forecast October 2025
Track daily snowfall levels and discover Ottawa’s snowy potential this October ❄️
October rainfall patterns in Ottawa
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UV exposure in Ottawa during October
Stay informed about UV levels for safe outdoor activities throughout the month of October ☀️
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