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Friday Harbor
Water Temperature in the Salish Sea in Friday Harbor, Washington: Current, Historical Data and Forecast
On this page, you will find comprehensive information about the sea temperature in Friday Harbor in Washington, 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 Friday Harbor
45°F
TODAY
45°F
YESTERDAY
45°F
A WEEK AGO
Analysis, Historical Data, and Forecast of Water Temperature
Today sea water temperature in the Salish Sea in Friday Harbor is 7°F. This water temperature is still quite low, and swimming in such conditions may only be comfortable for hardened individuals. It is recommended to limit the time spent in the water to avoid hypothermia. For those not accustomed to cold water, it is better to refrain from swimming. However, if you decide to enter the water, it is advisable to wear a warm wetsuit for protection against the cold.
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 Salish Sea in Friday Harbor Over the Last 30 Days
The water temperature in Friday Harbor 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 Friday Harbor will remain nearly unchanged in the coming days, its value will be 46°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 United States to enhance accuracy.
Water temperature data for Friday Harbor 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 | 45°F | 46°F | |
| Feb 16 | 45°F | 44°F | |
| Feb 17 | 45°F | 46°F | |
| Feb 18 | 45°F | 45°F | |
| Feb 19 | 45°F | 45°F | |
| Feb 20 | 45°F | 45°F | |
| Feb 21 | 45°F | 46°F | |
| Feb 22 | 45°F | 45°F | |
| Feb 23 | 45 | 45°F | |
| Feb 24 | 46 | 45°F | |
| Feb 25 | 46 | 45°F | |
| Feb 26 | 47 | 46°F | |
| Feb 27 | 46 | 46°F | |
| Feb 28 | 46 | 46°F | |
| Mar 1 | 46 | 46°F | |
| Mar 2 | 47 | 46°F |
Sea Temperature in Friday Harbor Throughout the Year
Throughout the year, the sea temperature in Friday Harbor never exceeds 64°F (18°C).
Below is the annual chart of sea temperature changes in the Salish Sea in Friday Harbor.
January
| Minimum | Average | Maximum |
|---|---|---|
| 43°F | 46°F | 50°F |
February
| Minimum | Average | Maximum |
|---|---|---|
| 43°F | 46°F | 48°F |
March
| Minimum | Average | Maximum |
|---|---|---|
| 43°F | 46°F | 50°F |
April
| Minimum | Average | Maximum |
|---|---|---|
| 45°F | 48°F | 52°F |
May
| Minimum | Average | Maximum |
|---|---|---|
| 45°F | 50°F | 55°F |
June
| Minimum | Average | Maximum |
|---|---|---|
| 48°F | 53°F | 57°F |
July
| Minimum | Average | Maximum |
|---|---|---|
| 50°F | 55°F | 59°F |
August
| Minimum | Average | Maximum |
|---|---|---|
| 50°F | 54°F | 57°F |
September
| Minimum | Average | Maximum |
|---|---|---|
| 46°F | 52°F | 57°F |
October
| Minimum | Average | Maximum |
|---|---|---|
| 48°F | 52°F | 55°F |
November
| Minimum | Average | Maximum |
|---|---|---|
| 46°F | 50°F | 54°F |
December
| Minimum | Average | Maximum |
|---|---|---|
| 43°F | 46°F | 50°F |
Monthly Water Temperature Histogram for Salish Sea in Friday Harbor
You can explore detailed data on how the water temperature in Friday Harbor varies each month:
What Beaches Are There In and Around Friday Harbor?
Friday Harbor Labs
Friday Harbor Labs is a 2-stars sandy beach, is located directly in Friday Harbor. There is parking. Friday Harbor Labs is an excellent spot for fishing enthusiasts, offering good opportunities to catch local fish.
Jackson Beach County Park
Jackson Beach County Park is a 3-stars sandy beach, located in a 2 km (1 miles) radius of Friday Harbor. There is parking. The calm waters make this beach ideal for swimming, providing a safe and enjoyable experience for all visitors.
Pear Point
Pear Point is a 1-stars sandy beach, located in a 3 km (2 miles) radius of Friday Harbor.
Turn Island State Park
Turn Island State Park is a 1-stars pebble beach, located in a 3 km (2 miles) radius of Friday Harbor. Snorkeling is possible.
San Juan Island
San Juan Island is a 3-stars sandy beach, located in a 3 km (2 miles) radius of Friday Harbor. There is parking. There are restrooms. San Juan Island is an excellent spot for fishing enthusiasts, offering good opportunities to catch local fish. The calm waters make this beach ideal for swimming, providing a safe and enjoyable experience for all visitors.
Shaw Landing
Shaw Landing is a 3-stars sandy beach, located in a 5 km (3 miles) radius of Friday Harbor. There is parking. There are restrooms. Shaw Landing is an excellent spot for fishing enthusiasts, offering good opportunities to catch local fish. The calm waters make this beach ideal for swimming, providing a safe and enjoyable experience for all visitors.
Shaw Island
Shaw Island is a 3-stars sandy beach, located in a 5 km (3 miles) radius of Friday Harbor. There is parking. There are restrooms. Shaw Island is an excellent spot for fishing enthusiasts, offering good opportunities to catch local fish. The calm waters make this beach ideal for swimming, providing a safe and enjoyable experience for all visitors.
Shaw Island County Park Tidelands
Shaw Island County Park Tidelands is a 3-stars sandy beach, located in a 6 km (4 miles) radius of Friday Harbor. There is parking. There are restrooms. Shaw Island County Park Tidelands is an excellent spot for fishing enthusiasts, offering good opportunities to catch local fish. The calm waters make this beach ideal for swimming, providing a safe and enjoyable experience for all visitors.
Neck Point
Neck Point is a 1-stars sandy beach, located in a 6 km (4 miles) radius of Friday Harbor.
Shaw Island County Park / Indian Cove
Shaw Island County Park / Indian Cove is a 3-stars sandy beach, located in a 6 km (4 miles) radius of Friday Harbor. There is parking. There are restrooms. Shaw Island County Park / Indian Cove is an excellent spot for fishing enthusiasts, offering good opportunities to catch local fish. The calm waters make this beach ideal for swimming, providing a safe and enjoyable experience for all visitors.
Wasp Passage
Wasp Passage is a 1-stars sandy beach, located in a 7 km (4 miles) radius of Friday Harbor. Wasp Passage is an excellent spot for fishing enthusiasts, offering good opportunities to catch local fish.
Fourth Of July Beach
Fourth Of July Beach is a 2-stars sandy beach, located in a 7 km (4 miles) radius of Friday Harbor. There is parking. Snorkeling is possible. It is suitable for surfing.
Crane Island
Crane Island is a 3-stars sandy beach, located in a 7 km (4 miles) radius of Friday Harbor. There is parking. Crane Island is an excellent spot for fishing enthusiasts, offering good opportunities to catch local fish. The calm waters make this beach ideal for swimming, providing a safe and enjoyable experience for all visitors.
Coon Island
Coon Island is a 2-stars sandy beach, located in a 7 km (4 miles) radius of Friday Harbor. Coon Island is an excellent spot for fishing enthusiasts, offering good opportunities to catch local fish. The calm waters make this beach ideal for swimming, providing a safe and enjoyable experience for all visitors.
Mcconnell Island
Mcconnell Island is a 1-stars sandy beach, located in a 7 km (4 miles) radius of Friday Harbor.
Canoe Island
Canoe Island is a 2-stars sandy beach, located in a 7 km (4 miles) radius of Friday Harbor. Canoe Island is an excellent spot for fishing enthusiasts, offering good opportunities to catch local fish. The calm waters make this beach ideal for swimming, providing a safe and enjoyable experience for all visitors.
Northwest Mcconnell Island Rock
Northwest Mcconnell Island Rock is a 1-stars sandy beach, located in a 7 km (4 miles) radius of Friday Harbor.
Shaw Island
Shaw Island is a 3-stars sandy beach, located in a 7 km (4 miles) radius of Friday Harbor. There is parking. There are restrooms. Shaw Island is an excellent spot for fishing enthusiasts, offering good opportunities to catch local fish. The calm waters make this beach ideal for swimming, providing a safe and enjoyable experience for all visitors.
False Bay San Juan Islands Marine Preserve
False Bay San Juan Islands Marine Preserve is a 1-stars pebble beach, located in a 7 km (4 miles) radius of Friday Harbor. There is parking.
Otis Perkins Day Park
Otis Perkins Day Park is a 3-stars sandy beach, located in a 7 km (4 miles) radius of Friday Harbor. There is parking. It is suitable for surfing. The calm waters make this beach ideal for swimming, providing a safe and enjoyable experience for all visitors.
Friday Harbor Weather
FEBRUARY 23
43°F / 50°F
moderate rainhumidity: 89% | wind: 2 mph
FEBRUARY 24
43°F / 46°F
light rainhumidity: 91% | wind: 4 mph
FEBRUARY 25
41°F / 50°F
light rainhumidity: 84% | wind: 2 mph
FEBRUARY 26
45°F / 48°F
overcast clouds: 85-100%humidity: 75% | wind: 2 mph
Sea Temperature in the Salish Sea in Friday Harbor: General Trends and Swimming Opportunities
The coastal area of Washington State, U.S., experiences a marine oceanic climate, characterized by cool, wet winters and mild, relatively dry summers. The region receives significant rainfall throughout the year, with November typically being the wettest month, while July and August are the driest and warmest.
Friday Harbor is located in North America in the Northern Hemisphere at a latitude of 49 degrees, along the shores of the Salish Sea. Friday Harbor lies within the Washington in United States.
The average annual daytime air temperature in Friday Harbor is 54°F (12°C), with the average nighttime temperature being 45°F (7°C). The highest average daily temperature occurs in August, reaching 72°F (22°C), while the lowest is in December at 37°F (3°C). As for nighttime temperatures, the minimum average temperature of 35°F (2°C) is recorded in January, and the maximum is in August, reaching 56°F (14°C).
According to historical data, Friday Harbor experiences 152 rainy days per year, which accounts for 42 percent of all days in the year. On average, there are 13 rainy days each month. The wettest month is November, with 18 rainy days and 10.5 inches (266 mm) of precipitation, while the driest month is August, which typically has 7 rainy days and only 1.9 inches (49 mm) of precipitation.
The average annual water temperature in Salish Sea in Friday Harbor is 50°F (10°C). In January, the water reaches its lowest point of the year at 43°F (6°C), while in July, it peaks at 59°F (15°C). In Friday Harbor, the water temperature in the Salish Sea never consistently reaches a comfortable level for swimming in any month.
Geographical Location of Friday Harbor
Nearby Cities
Frequently Asked Questions About Friday Harbor and its Water Temperatures
What is the current sea temperature in Friday Harbor?
The water temperature today in the Salish Sea in Friday Harbor is 45°F (7.3°C).
In which months is the water temperature in Friday Harbor comfortable for swimming?
It cannot be guaranteed that the water temperature in Friday Harbor will be comfortable for swimming in any month of the year.
What is the water temperature in Friday Harbor during the winter?
The water temperature in the Salish Sea in Friday Harbor during the winter ranges from 43°F to 50°F (6°C to 10°C).
What is the water temperature in Friday Harbor during the spring?
The water temperature in the Salish Sea in Friday Harbor during the spring ranges from 43°F to 55°F (6°C to 13°C).
What is the water temperature in Friday Harbor during the summer?
The water temperature in the Salish Sea in Friday Harbor during the summer ranges from 48°F to 59°F (9°C to 15°C).
What is the water temperature in Friday Harbor during the fall?
The water temperature in the Salish Sea in Friday Harbor during the fall ranges from 46°F to 57°F (8°C to 14°C).
Is it possible to swim in the sea in Friday Harbor at any time of the year?
In Friday Harbor, the Salish Sea is quite cold, and swimming is almost impossible as the water temperature never reaches 70°F (21°C).
What sea temperatures can I expect in Friday Harbor in the next month?
In March, the water temperature in the Salish Sea in Friday Harbor will range between 43°F (6°C) and 50°F (10°C)