Summerside — Water Temperature, Sea Conditions & Trends
This page provides clear and up-to-date information about water temperature for Summerside (Prince Edward Island, Canada). It includes the current water temperature, daily data for the last month presented in a simple chart, and a 7-day forecast. The page also compares today’s value with typical averages for this period, shows usual monthly ranges during the year, and lists nearby beaches with short descriptions. Local weather for the next few days and general details about Summerside help you plan your visit and choose the best time for swimming.
Current Water Temperature
Water temperature in Summerside in the Atlantic Ocean today is 11°C.
Water Temperature: Daily Trends, Historical Records, and Forecast
❌ As of today, the minimum water temperature 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.
Water Temperature Chart Over the Last 30 Days
Water temperature in Summerside has risen over the last week and month. Currently, the sea water at this location is slightly warmer than average for this day in previous years.
According to our forecast, Water temperature in Summerside will be 11.5°C in the next 7 days. See the table below for daily data for the upcoming week.
Table of Daily Sea Temperature Data
| Date | Current | Average | Forecast |
|---|---|---|---|
| JUN 1 | 9.6°C | 8.8°C | |
| JUN 2 | 9.0°C | 9.0°C | |
| JUN 3 | 9.2°C | 9.3°C | |
| JUN 4 | 9.9°C | 9.8°C | |
| JUN 5 | 10.1°C | 10.0°C | |
| JUN 6 | 9.8°C | 10.3°C | |
| JUN 7 | 10.7°C | 10.0°C | |
| JUN 8 | 10.8°C | 9.8°C | |
| JUN 9 | 11.1°C | 9.8°C | 11.1°C |
| JUN 10 | 10.0°C | 11.2°C | |
| JUN 11 | 10.3°C | 11.2°C | |
| JUN 12 | 10.8°C | 11.3°C | |
| JUN 13 | 11.3°C | 11.3°C | |
| JUN 14 | 10.8°C | 11.4°C | |
| JUN 15 | 11.0°C | 11.5°C | |
| JUN 16 | 11.3°C | 11.5°C |
* Current - Actual water temperature value
** Average - Average water temperature on this day in recent years
*** Forecast - Our water temperature forecast
Actual nearshore water temperatures may fluctuate by several degrees from the reported values, especially following heavy rainfall or extended periods of strong winds. Certain wind patterns can cause colder, deeper waters to rise and replace the sun-warmed surface water, leading to noticeable variations.
Our forecast is based on a proprietary mathematical model that considers real-time water temperature changes, historical trends, key weather patterns, wind strength and direction, and air temperature specific to each region. Additionally, we incorporate data from other resorts to enhance accuracy.
Water temperature data for this location is gathered from various sources, including buoys and satellite sea and ocean surface maps provided by the NOAA agency. We also incorporate data from local authorities in each specific location worldwide to ensure more accurate temperature readings.
Annual Water Temperature Overview by Month
Monthly Water Temp Ranges
Annual Water Temperature Trend
Summerside, on the southern shore of Prince Edward Island facing the Northumberland Strait, benefits from some of the warmest coastal waters in eastern Canada. Seasonal water temperatures in the area vary widely: winter surface temperatures typically hover around 0–2 °C, rising through spring to roughly 2–12 °C as the ice clears and days lengthen. By summer the strait warms substantially, with coastal readings commonly between 15 and 23 °C and sheltered bays occasionally reaching as warm as 25 °C on prolonged heat spells. In autumn the water cools again, usually settling in the 8–15 °C range before moving back toward winter lows. Local conditions can change with wind, tides and weather, so short-term temperatures often differ from the seasonal averages.
Monthly Water Temperature Range (Min, Max & Average)
| Month | Min | Avg | Max |
|---|---|---|---|
| January | -2°C | 0°C | 3°C |
| February | -3°C | -1°C | 0°C |
| March | -3°C | -1°C | 1°C |
| April | -2°C | 1°C | 4°C |
| May | 0°C | 5°C | 10°C |
| June | 4°C | 11°C | 16°C |
| July | 13°C | 17°C | 20°C |
| August | 16°C | 19°C | 22°C |
| September | 11°C | 18°C | 21°C |
| October | 8°C | 14°C | 18°C |
| November | 4°C | 9°C | 14°C |
| December | -1°C | 3°C | 7°C |
* Click on a month to view detailed water temperature data.
Summerside: Weather Forecast
June 10
June 11
June 12
June 13
Location, Beaches & Local Information
Nearby Beaches & Facilities
Green's Shore Park
Linkletter Provincial Park
Linkletter Shore
Gardiner Shore
Swimming Conditions
Swimming and beach holidays around Summerside are popular during the warmer months when water temperatures become comfortable for recreation. From mid-June through early September many visitors and residents swim, wade and enjoy shoreline activities as temperatures often reach the high teens to low twenties °C. The nearby beaches and protected inlets provide gentler surf suitable for families, and seasonal amenities such as lifeguards, picnic areas and boat or paddle-sport rentals are commonly available at main public beaches. Even in summer, onshore winds and cooler days can make the water feel brisk, so swimmers should be prepared for variable conditions and pay attention to local safety advisories and water-quality notices before entering.