Search for cities, countries, lakes and rivers
St. Catharines
Water Temperature in St. Catharines in Lake Ontario: Current and Forecast
On this page, you will find comprehensive information about the water temperature in St. Catharines in Lake Ontario, including current readings, historical data and trends, monthly averages, as well as weather forecasts and upcoming temperature predictions. We find every spot where you can swim and tell you what the water temperature is there today and throughout the year.
Current Water Temperature in St. Catharines
11.4°C
TODAY
10.9°C
YESTERDAY
7.3°C
A WEEK AGO
As of today, the minimum water temperature in St. Catharines ranges from 50°F (10°C) to 54°F (12°C). The water is slightly warmer, but still cool for most people. Swimming in such conditions is possible, but for most people, the time spent in the water should be limited to avoid hypothermia. Even experienced swimmers may feel discomfort if they stay in the water for too long. To improve comfort and safety, a wetsuit can be used.
It is important to note that these swimming tips and recommendations apply only in good weather. When the air temperature is below 68°F (20°C), and sometimes even below 77°F (25°C), swimming can be unpleasant even with relatively high water temperatures.
Analysis, Historical Data, and Forecast of Water Temperature
Water Temperature Chart for Lake Ontario in St. Catharines Over the Last 30 Days
Today the water temperature in St. Catharines is higher than the same day in previous years. The water temperature range here in April is from 1°C to 11°C. The water temperature is trending upward, and it has increased both over the past 30 days and the past week.
The forecasted water temperature values for St. Catharines are presented in the table below.
The actual water temperature values near the shore may differ by a few degrees from the stated values. For the development of the forecast, we use our own mathematical model that takes into account the current water temperature changes, historical data, and key weather trends, including wind strength and direction, and air temperature in each specific region.
Table of Daily Water Temperature Data
| Date | Current | Average | Forecast |
|---|---|---|---|
| Apr 18 | 7.3°C | 6.0°C | |
| Apr 19 | 7.3°C | 6.0°C | |
| Apr 20 | 7.2°C | 6.0°C | |
| Apr 21 | 7.4°C | 6.0°C | |
| Apr 22 | 8.3°C | 6.0°C | |
| Apr 23 | 8.7°C | 6.0°C | |
| Apr 24 | 10.9°C | 6.0°C | |
| Apr 25 | 11.4°C | 6.0°C | |
| Apr 26 | 6.0°C | 11.1°C | |
| Apr 27 | 6.0°C | 10.8°C | |
| Apr 28 | 6.0°C | 10.5°C | |
| Apr 29 | 6.0°C | 10.2°C | |
| Apr 30 | 6.0°C | 9.9°C | |
| May 1 | 11.0°C | 10.0°C | |
| May 2 | 11.0°C | 10.1°C | |
| May 3 | 11.0°C | 10.2°C |
Water Temperature Ranges in St. Catharines by Month
January
| Minimum | Average | Maximum |
|---|---|---|
| 1°C | 4°C | 7°C |
February
| Minimum | Average | Maximum |
|---|---|---|
| 1°C | 2.5°C | 4°C |
March
| Minimum | Average | Maximum |
|---|---|---|
| -1°C | 2.5°C | 6°C |
April
| Minimum | Average | Maximum |
|---|---|---|
| 1°C | 6°C | 11°C |
May
| Minimum | Average | Maximum |
|---|---|---|
| 8°C | 11°C | 14°C |
June
| Minimum | Average | Maximum |
|---|---|---|
| 12°C | 16°C | 20°C |
July
| Minimum | Average | Maximum |
|---|---|---|
| 15°C | 19.5°C | 24°C |
August
| Minimum | Average | Maximum |
|---|---|---|
| 18°C | 21.5°C | 25°C |
September
| Minimum | Average | Maximum |
|---|---|---|
| 14°C | 19°C | 24°C |
October
| Minimum | Average | Maximum |
|---|---|---|
| 8°C | 14.5°C | 21°C |
November
| Minimum | Average | Maximum |
|---|---|---|
| 5°C | 9.5°C | 14°C |
December
| Minimum | Average | Maximum |
|---|---|---|
| 1°C | 5.5°C | 10°C |
Monthly Water Temperature Histogram for Lake Ontario in St. Catharines
Known Beaches in the Area of St. Catharines?
Lakeside Park Beach
Lakeside Park Beach is a 4-stars sandy beach, is located directly in St. Catharines. There is parking. There are restrooms. There are cafés. The calm waters make this beach ideal for swimming, providing a safe and enjoyable experience for all visitors.
Cherie Road Park
Cherie Road Park is a 2-stars sandy beach, located in a 4 km (2 miles) radius of St. Catharines. There is parking. There are cafés.
Charles Daley Park
Charles Daley Park is a 3-stars sandy beach, located in a 5 km (3 miles) radius of St. Catharines. There is parking. There are restrooms. Charles Daley Park is an excellent spot for fishing enthusiasts, offering good opportunities to catch local fish.
Port Weller Beach
Port Weller Beach is a 3-stars sandy beach, located in a 5 km (3 miles) radius of St. Catharines. There is parking. There are restrooms. There are cafés.
Municipal Beach
Municipal Beach is a 2-stars sandy beach, located in a 6 km (4 miles) radius of St. Catharines. There is parking. There are cafés.
Jones Beach
Jones Beach is a 2-stars sandy beach, located in a 6 km (4 miles) radius of St. Catharines. There is parking. There are cafés.
Victoria Shores Park
Victoria Shores Park is a 3-stars sandy beach, located in a 10 km (6 miles) radius of St. Catharines. There is parking. There are restrooms. There are cafés.
St. Catharines Weather
APRIL 26
7°C / 13°C
moderate drizzlerain: 63% | wind: 26 km/h
APRIL 27
5°C / 11°C
overcastrain: 6% | wind: 15 km/h
APRIL 28
7°C / 17°C
overcastrain: 7% | wind: 8 km/h
Water Temperature in St. Catharines: General Trends and Swimming Opportunities
St. Catharines, situated on the southern shore of Lake Ontario, offers residents and visitors easy access to the lake's inviting waters. During the summer months, the water temperature in Lake Ontario near St. Catharines typically ranges from 68°F to 74°F (20°C to 23°C). These temperatures make it comfortable for swimming, and the city's waterfront areas, such as Sunset Beach and Port Dalhousie, become popular destinations for those looking to cool off. The water is warm enough for an enjoyable swim but can feel refreshing, especially on warmer days when the breeze picks up.
The waterfront of St. Catharines is a bustling area, with both locals and tourists flocking to the lake's shores for swimming, sunbathing, and other recreational activities. The city also has beaches with amenities like lifeguards during peak summer months, ensuring a safer environment for those looking to swim. In addition to swimming, people can engage in various water sports such as kayaking, paddleboarding, and sailing, taking full advantage of the lake's open waters.
During the colder months, the water temperature in Lake Ontario around St. Catharines drops significantly, often falling between 34°F and 41°F (1°C to 5°C), making swimming unsafe. However, during the warmer months, the lake provides a refreshing retreat for swimming and water activities. Its relatively warm temperatures and scenic surroundings make St. Catharines a popular location for enjoying the outdoors.
Geographical Location of St. Catharines
Nearby Cities
Frequently Asked Questions About St. Catharines and its Water Temperatures
What is the current water temperature in St. Catharines?
The water temperature today in St. Catharines is 53°F (11.4°C).
What is the water temperature in St. Catharines during the summer months?
The average water temperature in St. Catharines during the summer months is typically between 61°F to 71°F (16°C to 22°C), and it can reach up to 77°F (25°C) at its warmest. However, in some years, the temperature may exceed this range.
What is the water temperature in St. Catharines in May?
The average water temperature in St. Catharines in May ranges from 46°F to 57°F (8°C to 14°C).
What is the water temperature in St. Catharines in September?
The average water temperature in St. Catharines in September is typically between 57°F to 75°F (14°C to 24°C).
Is it possible to swim in the Lake Ontario in St. Catharines, and what are the available options for doing so?
Yes, it is possible to swim in Lake Ontario in St. Catharines. You can swim at public beaches like Sunset Beach, or utilize facilities like Lakeside Park Beach.