St. Catharines
October
Weather in St. Catharines for October 2026
Your guide to St. Catharines weather in October - trends and predictions
In general, the average temperature in St. Catharines at the beginning of October is 22 °C. As the month progressed, temperatures tended to significantly cool down, reaching an average of 13 °C by the end of October.
St. Catharines in October brings notable rainfall, with an average of 17 rainy days and a total precipitation of 111.4 mm.
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Temperatures
Rain 🌧️
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14
Dry days
17
Rainy days
0
Snow days
16°/9°
Temperatures
27 km/h
Avg max wind
73 %
Avg humidity
St. Catharines Weather October
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Temperatures trend during October in St. Catharines
See the weather trend as well as the moving average line
October weather in St. Catharines day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 Oct. |  Overcast | 20° /13° | 0 mm | 5 | |
| 2 Oct. |  Fog | 22° /11° | 0 mm | 5 | |
| 3 Oct. | Overcast | 25° /12° | 0 mm | 6 | |
| 4 Oct. | Mist | 24° /13° | 0 mm | 5 | |
| 5 Oct. |  Patchy light drizzle | 24° /15° | 0.1 mm | 6 | |
| 6 Oct. |  Light rain shower | 22° /13° | 6.8 mm | 5 | |
| 7 Oct. | Light rain | 17° /11° | 11.7 mm | 4 | |
| 8 Oct. | Light rain shower | 14° /9° | 3.5 mm | 4 | |
| 9 Oct. |  Cloudy | 14° /6° | 0 mm | 3 | |
| 10 Oct. | Patchy rain possible | 14° /6° | 0.1 mm | 4 | |
| 11 Oct. | Patchy rain possible | 18° /8° | 1.1 mm | 4 | |
| 12 Oct. |  Partly cloudy | 17° /10° | 0 mm | 5 | |
| 13 Oct. | Cloudy | 13° /8° | 4 mm | 3 | |
| 14 Oct. | Light drizzle | 13° /7° | 1.2 mm | 3 | |
| 15 Oct. | Light rain shower | 12° /7° | 2.7 mm | 3 | |
| 16 Oct. | Light rain shower | 13° /7° | 0.9 mm | 4 | |
| 17 Oct. | Patchy rain possible | 13° /6° | 3.1 mm | 4 | |
| 18 Oct. | Patchy rain possible | 18° /6° | 0 mm | 5 | |
| 19 Oct. | Patchy rain possible | 19° /10° | 14 mm | 4 | |
| 20 Oct. | Light rain shower | 16° /9° | 18.7 mm | 4 | |
| 21 Oct. | Patchy rain possible | 17° /10° | 0.2 mm | 4 | |
| 22 Oct. | Light rain shower | 14° /8° | 16.7 mm | 3 | |
| 23 Oct. | Overcast | 14° /7° | 1.2 mm | 3 | |
| 24 Oct. | Overcast | 14° /6° | 0 mm | 4 | |
| 25 Oct. | Light drizzle | 15° /8° | 1.1 mm | 4 | |
| 26 Oct. | Light rain | 14° /9° | 0.6 mm | 3 | |
| 27 Oct. | Partly cloudy | 13° /8° | 0.1 mm | 4 | |
| 28 Oct. | Light rain | 14° /4° | 1.1 mm | 4 | |
| 29 Oct. |  Moderate rain | 11° /6° | 2.1 mm | 3 | |
| 30 Oct. | Light rain shower | 11° /7° | 19.8 mm | 3 | |
| 31 Oct. |  Patchy snow possible | 13° /8° | 0.4 mm | 4 | |
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Important Notice
Our weather forecast for St. Catharines 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 St. Catharines forecast closer to your planned date for the most up-to-date weather information.
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St. Catharines in October - FAQ
What are the expected maximum and minimum temperatures in St. Catharines during October?
Enjoy moderate daytime temperatures of up to 16° and cooler nights around 9°. Ideal for a range of outdoor activities, from hiking to city tours.
How much rainfall should be expected in St. Catharines during October?
Significant rainfall exceeding 111.4 mm is expected in St. Catharines during October, occurring over more than 17 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in St. Catharines during October?
The average wind speed in St. Catharines during October is 27 km/h, suggesting breezy to windy conditions, depending on your activities.
October rainfall patterns in St. Catharines
Explore the daily rainfall trends and prepare for St. Cathariness October weather 💧
Typically, St. Catharines has 17 rainy days in October with a total of 111.4 mm of rainfall.
UV exposure in St. Catharines during October
Stay informed about UV levels for safe outdoor activities throughout the month of October ☀️
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Where is St. Catharines?Get accurate weather forecasts for St. Catharines, located at latitude 43.171 and longitude -79.243. Stay updated with localized weather information tailored for St. Catharines.
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