St. Catharines
July
Weather in St. Catharines for July 2025
Your guide to St. Catharines weather in July - trends and predictions
In general, the average temperature in St. Catharines at the beginning of July is 25.3 °C. As the month progressed, temperatures tended to moderately rise, reaching an average of 25.9 °C by the end of July.
St. Catharines experiences an exceptionally high level of rainfall in July, with more than 20 rainy days on average.
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9
Dry days
22
Rainy days
0
Snow days
26°/18°
Temperatures
18 km/h
Avg max wind
77 %
Avg humidity
St. Catharines in July average weather
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| Mon. | Tue. | Wed. | Thu. | Fri. | Sat. | Sun. |
|---|---|---|---|---|---|---|
| 1  24° | 2 22° | 3  24° | 4  27° | 5 27° | 6  27° | |
| 7 26° | 8  25° | 9 25° | 10  26° | 11 25° | 12 24° | 13 26° |
| 14 26° | 15 27° | 16 26° | 17 24° | 18 23° | 19 24° | 20 25° |
| 21 25° | 22 24° | 23 26° | 24 26° | 25 26° | 26 27° | 27 26° |
| 28 28° | 29 25° | 30 24° | 31 25° |
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Temperatures trend during July in St. Catharines
See the weather trend as well as the moving average line
July weather day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 Jul. | Moderate or heavy rain shower | 24° /16° | 3.2 mm | 6 | |
| 2 Jul. | Moderate or heavy rain shower | 22° /16° | 7.6 mm | 5 | |
| 3 Jul. | Heavy rain at times | 24° /19° | 4.6 mm | 6 | |
| 4 Jul. | Overcast | 27° /18° | 0 mm | 6 | |
| 5 Jul. | Overcast | 27° /18° | 9.6 mm | 6 | |
| 6 Jul. | Cloudy | 27° /19° | 0.7 mm | 6 | |
| 7 Jul. | Overcast | 26° /18° | 0.2 mm | 6 | |
| 8 Jul. | Patchy rain possible | 25° /17° | 0.2 mm | 6 | |
| 9 Jul. | Heavy rain at times | 25° /19° | 4.1 mm | 6 | |
| 10 Jul. | Partly cloudy | 26° /18° | 12.4 mm | 6 | |
| 11 Jul. | Overcast | 25° /18° | 3.1 mm | 6 | |
| 12 Jul. | Overcast | 24° /18° | 1.6 mm | 6 | |
| 13 Jul. | Moderate rain at times | 26° /19° | 6.3 mm | 6 | |
| 14 Jul. | Cloudy | 26° /18° | 1.8 mm | 6 | |
| 15 Jul. | Patchy rain possible | 27° /20° | 10 mm | 6 | |
| 16 Jul. | Moderate or heavy rain shower | 26° /20° | 14.4 mm | 6 | |
| 17 Jul. | Patchy rain possible | 24° /18° | 2.5 mm | 6 | |
| 18 Jul. | Moderate rain at times | 23° /16° | 1.3 mm | 6 | |
| 19 Jul. | Patchy rain possible | 24° /16° | 0.1 mm | 6 | |
| 20 Jul. | Overcast | 25° /17° | 5.7 mm | 7 | |
| 21 Jul. | Overcast | 25° /17° | 1.7 mm | 6 | |
| 22 Jul. | Partly cloudy | 24° /18° | 0.1 mm | 6 | |
| 23 Jul. | Heavy rain at times | 26° /18° | 1.1 mm | 6 | |
| 24 Jul. | Moderate rain at times | 26° /19° | 5.7 mm | 6 | |
| 25 Jul. | Patchy rain possible | 26° /17° | 0.6 mm | 6 | |
| 26 Jul. | Overcast | 27° /19° | 2.5 mm | 6 | |
| 27 Jul. | Moderate or heavy rain shower | 26° /18° | 14.9 mm | 7 | |
| 28 Jul. | Overcast | 28° /19° | 0 mm | 7 | |
| 29 Jul. | Moderate or heavy rain shower | 25° /19° | 13.6 mm | 6 | |
| 30 Jul. | Patchy rain possible | 24° /19° | 3.1 mm | 6 | |
| 31 Jul. | Patchy rain possible | 25° /18° | 2.2 mm | 6 | |
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Important Notice
Our weather forecast for St. Catharines in July 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.
St. Catharines in July - FAQ
What are the expected maximum and minimum temperatures in St. Catharines during July?
During July, expect a variety of temperatures with highs around 26° and lows near 18°, suitable for diverse activities and preferences.
How much rainfall should be expected in St. Catharines during July?
Significant rainfall exceeding 160 mm is expected in St. Catharines during July, occurring over more than 22 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in St. Catharines during July?
The average wind speed in St. Catharines during July is 18 km/h, suggesting breezy to windy conditions, depending on your activities.
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