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Saint John
Water Temperature in the Atlantic Ocean in Saint John, New Brunswick: Current, Historical Data and Forecast
On this page, you will find comprehensive information about the sea temperature in Saint John in New Brunswick, 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 Saint John
37°F
TODAY
37°F
YESTERDAY
38°F
A WEEK AGO
Analysis, Historical Data, and Forecast of Water Temperature
Today sea water temperature in the Atlantic Ocean in Saint John is 2.7°F. Such water is extremely cold and not recommended for swimming without proper preparation. In these conditions, the risk of hypothermia is very high, and prolonged exposure to the water can be hazardous to your health. If you decide to swim, it is important to have the appropriate gear, such as a wetsuit. Typically, only experienced swimmers or those who practice winter swimming venture into such waters.
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 for Atlantic Ocean in Saint John Over the Last 30 Days
The water temperature in Saint John today is lower than both a week ago and a month ago. Today's sea temperature is generally in line with historical values for this day.
According to our forecast, the sea temperature in Saint John will remain nearly unchanged in the coming days, its value will be 38°F.
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 across Canada to enhance accuracy.
Water temperature data for Saint John and nearby towns and resorts 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.
Table of Daily Sea Temperature Data
| Date | Current | Average | Forecast |
|---|---|---|---|
| Feb 15 | 38°F | 39°F | |
| Feb 16 | 37°F | 38°F | |
| Feb 17 | 37°F | 39°F | |
| Feb 18 | 37°F | 40°F | |
| Feb 19 | 37°F | 38°F | |
| Feb 20 | 37°F | 39°F | |
| Feb 21 | 37°F | 39°F | |
| Feb 22 | 37°F | 38°F | |
| Feb 23 | 39 | 37°F | |
| Feb 24 | 39 | 37°F | |
| Feb 25 | 39 | 37°F | |
| Feb 26 | 39 | 37°F | |
| Feb 27 | 37 | 37°F | |
| Feb 28 | 37 | 37°F | |
| Mar 1 | 38 | 37°F | |
| Mar 2 | 39 | 38°F |
Sea Temperature in Saint John Throughout the Year
Throughout the year, the sea temperature in Saint John never exceeds 64°F (18°C).
Below is the annual chart of sea temperature changes in the Atlantic Ocean in Saint John.
January
| Minimum | Average | Maximum |
|---|---|---|
| 32°F | 39°F | 46°F |
February
| Minimum | Average | Maximum |
|---|---|---|
| 34°F | 39°F | 45°F |
March
| Minimum | Average | Maximum |
|---|---|---|
| 34°F | 38°F | 43°F |
April
| Minimum | Average | Maximum |
|---|---|---|
| 36°F | 40°F | 45°F |
May
| Minimum | Average | Maximum |
|---|---|---|
| 39°F | 45°F | 50°F |
June
| Minimum | Average | Maximum |
|---|---|---|
| 45°F | 50°F | 55°F |
July
| Minimum | Average | Maximum |
|---|---|---|
| 50°F | 55°F | 59°F |
August
| Minimum | Average | Maximum |
|---|---|---|
| 54°F | 58°F | 63°F |
September
| Minimum | Average | Maximum |
|---|---|---|
| 52°F | 56°F | 61°F |
October
| Minimum | Average | Maximum |
|---|---|---|
| 50°F | 55°F | 59°F |
November
| Minimum | Average | Maximum |
|---|---|---|
| 46°F | 51°F | 55°F |
December
| Minimum | Average | Maximum |
|---|---|---|
| 37°F | 45°F | 52°F |
Monthly Water Temperature Histogram for Atlantic Ocean in Saint John
You can explore detailed data on how the water temperature in Saint John varies each month:
What Beaches Are There In and Around Saint John?
Tin Can Beach
Tin Can Beach is a 2-stars sandy beach, is located directly in Saint John. There is parking. Snorkeling is possible.
Little River Beach
Little River Beach is a 2-stars sandy beach, located in a 3 km (2 miles) radius of Saint John. There are cafés.
Bay Shore Beach
Bay Shore Beach is a 2-stars sandy beach, located in a 3 km (2 miles) radius of Saint John. There is parking.
Tucker Park Beach
Tucker Park Beach is a 2-stars sandy beach, located in a 5 km (3 miles) radius of Saint John. There is parking.
Mclarens Beach
Mclarens Beach is a 1-stars pebble beach, located in a 5 km (3 miles) radius of Saint John. There is parking.
Dominion Park Beach
Dominion Park Beach is a 3-stars sandy beach, located in a 5 km (3 miles) radius of Saint John. There are lifeguards on the beach. There is parking. There are restrooms. Dominion Park Beach is an excellent spot for fishing enthusiasts, offering good opportunities to catch local fish.
Turners Flats
Turners Flats is a 2-stars sandy beach, located in a 6 km (4 miles) radius of Saint John. There is parking.
Boar's Head Nature Preserve
Boar's Head Nature Preserve is a 2-stars sandy beach, located in a 6 km (4 miles) radius of Saint John. There are restrooms.
Saints Rest Beach
Saints Rest Beach is a 1-stars pebble beach, located in a 7 km (4 miles) radius of Saint John. There is parking.
Saints Rest Marsh
Saints Rest Marsh is a 1-stars pebble beach, located in a 8 km (5 miles) radius of Saint John. There is parking.
Vances Beach
Vances Beach is a 1-stars pebble beach, located in a 10 km (6 miles) radius of Saint John.
Rothesay Kennebecasis Park Beach
Rothesay Kennebecasis Park Beach is a 1-stars pebble beach, located in a 10 km (6 miles) radius of Saint John. There is parking.
Vairs Beach
Vairs Beach is a 2-stars pebble beach, located in a 10 km (6 miles) radius of Saint John. There is parking. There are cafés.
Saint John Weather
FEBRUARY 23
9°F / 30°F
light snowhumidity: 90% | wind: 1 mph
FEBRUARY 24
28°F / 37°F
clear skyhumidity: 92% | wind: 4 mph
FEBRUARY 25
34°F / 37°F
light rainhumidity: 99% | wind: 1 mph
FEBRUARY 26
27°F / 37°F
overcast clouds: 85-100%humidity: 95% | wind: 2 mph
Sea Temperature in the Atlantic Ocean in Saint John: General Trends and Swimming Opportunities
New Brunswick, Canada, particularly in its coastal regions, features a humid continental climate with warm, sometimes hot, summers and cold winters. The area is considerably influenced by the surrounding marine environment, resulting in substantial precipitation, fog, and milder temperatures than the inland regions.
Saint John is located in North America in the Northern Hemisphere at a latitude of 45 degrees, along the shores of the Atlantic Ocean. Saint John lies within the New Brunswick in Canada.
The average annual daytime air temperature in Saint John is 13°C (55°F), with the average nighttime temperature being 6°C (43°F). The highest average daily temperature occurs in July, reaching 18°C (65°F), while the lowest is in January at 8°C (46°F). As for nighttime temperatures, the minimum average temperature of 2°C (36°F) is recorded in February, and the maximum is in July, reaching 11°C (53°F).
According to historical data, Saint John experiences 189 rainy days per year, which accounts for 52 percent of all days in the year. On average, there are 16 rainy days each month. The wettest month is January, with 18 rainy days and 85 mm (3.4 inches) of precipitation, while the driest month is April, which typically has 13 rainy days and only 62 mm (2.4 inches) of precipitation.
The average annual water temperature in Atlantic Ocean in Saint John is 9°C (48°F). In January, the water reaches its lowest point of the year at 0°C (32°F), while in August, it peaks at 17°C (63°F). In Saint John, the water temperature in the Atlantic Ocean never consistently reaches a comfortable level for swimming in any month.
Geographical Location of Saint John
Nearby Cities
Frequently Asked Questions About Saint John and its Water Temperatures
What is the current sea temperature in Saint John?
The water temperature today in the Atlantic Ocean in Saint John is 37°F (2.5°C).
In which months is the water temperature in Saint John comfortable for swimming?
It cannot be guaranteed that the water temperature in Saint John will be comfortable for swimming in any month of the year.
What is the water temperature in Saint John during the winter?
The water temperature in the Atlantic Ocean in Saint John during the winter ranges from 0°C to 11°C (32°F to 52°F).
What is the water temperature in Saint John during the spring?
The water temperature in the Atlantic Ocean in Saint John during the spring ranges from 1°C to 10°C (34°F to 50°F).
What is the water temperature in Saint John during the summer?
The water temperature in the Atlantic Ocean in Saint John during the summer ranges from 7°C to 17°C (45°F to 63°F).
What is the water temperature in Saint John during the fall?
The water temperature in the Atlantic Ocean in Saint John during the fall ranges from 8°C to 16°C (46°F to 61°F).
Is it possible to swim in the sea in Saint John at any time of the year?
In Saint John, the Atlantic Ocean is quite cold, and swimming is almost impossible as the water temperature never reaches 21°C (70°F).
What sea temperatures can I expect in Saint John in the next month?
In March, the water temperature in the Atlantic Ocean in Saint John will range between 34°F (1°C) and 43°F (6°C)