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Port Townsend

Water Temperature in the Salish Sea in Port Townsend, Washington: Current, Historical Data and Forecast

On this page, you will find comprehensive information about the sea temperature in Port Townsend 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 Port Townsend

49°F

TODAY

49°F

YESTERDAY

49°F

A WEEK AGO

All water temperature data is now available in our official mobile apps — for iOS and Android.

Analysis, Historical Data, and Forecast of Water Temperature

Today sea water temperature in the Salish Sea in Port Townsend is 9.5°F. This is still cool water, suitable only for experienced swimmers or those accustomed to cold water. Swimming in such conditions is possible, but not recommended for prolonged periods. Extra caution should be taken during extended exposure, as the cold water can cause heat loss and lead to hypothermia. For added comfort, special clothing 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 for Salish Sea in Port Townsend Over the Last 30 Days

The water temperature in Port Townsend 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 Port Townsend will remain nearly unchanged in the coming days, its value will be 50°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 Port Townsend 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

DateCurrentAverageForecast
May 2049°F51°F
May 2148°F49°F
May 2249°F49°F
May 2349°F49°F
May 2449°F49°F
May 2549°F50°F
May 2649°F50°F
May 2749°F49°F
May 2850°F49°F
May 2949°F49°F
May 3049°F49°F
May 3149°F49°F
Jun 151°F49°F
Jun 251°F49°F
Jun 351°F49°F
Jun 453°F50°F
* Current - Actual water temperature value
** Average - Average water temperature on this day in recent years
*** Forecast - Our water temperature forecast

Sea Temperature in Port Townsend Throughout the Year

Throughout the year, the sea temperature in Port Townsend never exceeds 64°F (18°C).

Below is the annual chart of sea temperature changes in the Salish Sea in Port Townsend.

January

MinimumAverageMaximum
45°F48°F52°F

February

MinimumAverageMaximum
45°F48°F52°F

March

MinimumAverageMaximum
43°F47°F52°F

April

MinimumAverageMaximum
45°F49°F54°F

May

MinimumAverageMaximum
46°F53°F59°F

June

MinimumAverageMaximum
48°F54°F59°F

July

MinimumAverageMaximum
48°F54°F59°F

August

MinimumAverageMaximum
50°F55°F59°F

September

MinimumAverageMaximum
48°F54°F59°F

October

MinimumAverageMaximum
48°F53°F57°F

November

MinimumAverageMaximum
46°F51°F55°F

December

MinimumAverageMaximum
43°F47°F52°F

Monthly Water Temperature Histogram for Salish Sea in Port Townsend

You can explore detailed data on how the water temperature in Port Townsend varies each month:

What Beaches Are There In and Around Port Townsend?

Downtown Port Townsend Business District

Downtown Port Townsend Business District is a 2-stars sandy beach, is located directly in Port Townsend. There is parking. There are cafés.

Northwest Maritime Center

Northwest Maritime Center is a 5-stars sandy beach, is located directly in Port Townsend. There are lifeguards on the beach. There is parking. There are restrooms. There are cafés. Northwest Maritime Center is an excellent spot for fishing enthusiasts, offering good opportunities to catch local fish. It is suitable for surfing. The calm waters make this beach ideal for swimming, providing a safe and enjoyable experience for all visitors.

J.B. Pope Marina Park

J.B. Pope Marina Park is a 3-stars sandy beach, is located directly in Port Townsend. There is parking. There are restrooms. There are cafés. J.B. Pope Marina Park is an excellent spot for fishing enthusiasts, offering good opportunities to catch local fish.

Chetzemoka Park

Chetzemoka Park is a 3-stars sandy beach, is located directly in Port Townsend. There is parking. There are restrooms. The calm waters make this beach ideal for swimming, providing a safe and enjoyable experience for all visitors.

Fort Worden State Park

Fort Worden State Park is a 3-stars sandy beach, located in a 2 km (1 miles) radius of Port Townsend. There is parking. There are restrooms. The calm waters make this beach ideal for swimming, providing a safe and enjoyable experience for all visitors.

Fort Worden State Park Beach Campground

Fort Worden State Park Beach Campground is a 3-stars sandy beach, located in a 3 km (2 miles) radius of Port Townsend. There is parking. There are restrooms. Fort Worden State Park Beach Campground is an excellent spot for fishing enthusiasts, offering good opportunities to catch local fish. Snorkeling is possible.

North Beach County Park

North Beach County Park is a 3-stars sandy beach, located in a 3 km (2 miles) radius of Port Townsend. There are restrooms. There are cafés. The calm waters make this beach ideal for swimming, providing a safe and enjoyable experience for all visitors.

Upper Camp Area

Upper Camp Area is a 2-stars sandy beach, located in a 4 km (2 miles) radius of Port Townsend. There is parking. There are restrooms.

Lower Camp Area

Lower Camp Area is a 3-stars sandy beach, located in a 4 km (2 miles) radius of Port Townsend. There is parking. There are restrooms. There are cafés.

Old Fort Townsend State Park

Old Fort Townsend State Park is a 3-stars sandy beach, located in a 5 km (3 miles) radius of Port Townsend. There is parking. There are restrooms. The calm waters make this beach ideal for swimming, providing a safe and enjoyable experience for all visitors.

Fort Flagler State Park

Fort Flagler State Park is a 3-stars sandy beach, located in a 5 km (3 miles) radius of Port Townsend. There is parking. There are restrooms. Fort Flagler State Park is an excellent spot for fishing enthusiasts, offering good opportunities to catch local fish.

Fort Townsend | Historical State Park

Fort Townsend | Historical State Park is a 1-stars sandy beach, located in a 5 km (3 miles) radius of Port Townsend.

Larry Scott Memorial Trail

Larry Scott Memorial Trail is a 2-stars sandy beach, located in a 5 km (3 miles) radius of Port Townsend. There is parking. There are restrooms.

West Fort Flagler Bridge

West Fort Flagler Bridge is a 2-stars sandy beach, located in a 5 km (3 miles) radius of Port Townsend. There is parking. West Fort Flagler Bridge is an excellent spot for fishing enthusiasts, offering good opportunities to catch local fish.

Mats Mats Bay Boat Launch

Mats Mats Bay Boat Launch is a 3-stars sandy beach, located in a 6 km (4 miles) radius of Port Townsend. There are restrooms. Mats Mats Bay Boat Launch is an excellent spot for fishing enthusiasts, offering good opportunities to catch local fish. Snorkeling is possible. The calm waters make this beach ideal for swimming, providing a safe and enjoyable experience for all visitors.

Mccurdy Point

Mccurdy Point is a 1-stars sandy beach, located in a 6 km (4 miles) radius of Port Townsend.

Cape George

Cape George is a 2-stars sandy beach, located in a 6 km (4 miles) radius of Port Townsend. There is parking. Cape George is an excellent spot for fishing enthusiasts, offering good opportunities to catch local fish.

Irondale Beach County Park

Irondale Beach County Park is a 2-stars sandy beach, located in a 8 km (5 miles) radius of Port Townsend. There is parking. There are restrooms.

Mystery Bay State Park

Mystery Bay State Park is a 3-stars sandy beach, located in a 8 km (5 miles) radius of Port Townsend. There is parking. There are restrooms. Mystery Bay State Park is an excellent spot for fishing enthusiasts, offering good opportunities to catch local fish. Snorkeling is possible.

East Beach County Park

East Beach County Park is a 4-stars sandy beach, located in a 8 km (5 miles) radius of Port Townsend. There is parking. There are restrooms. East Beach County Park is an excellent spot for fishing enthusiasts, offering good opportunities to catch local fish. Snorkeling is possible. It is suitable for surfing. The calm waters make this beach ideal for swimming, providing a safe and enjoyable experience for all visitors.

Port Townsend Weather

MAY 28

54°F / 72°F
clear sky

humidity: 76% | wind: 2 mph

MAY 29

45°F / 59°F
light rain

humidity: 76% | wind: 1 mph

MAY 30

50°F / 64°F
few clouds: 11-25%

humidity: 63% | wind: 1 mph

MAY 31

52°F / 55°F
scattered clouds: 25-50%

humidity: 81% | wind: 3 mph

Washington, United StatesWashington, United StatesWashington, United States

Sea Temperature in the Salish Sea in Port Townsend: General Trends and Swimming Opportunities

Original name
Port Townsend
The Local Time
09:37 PM
Time Zone
UTC-7
Sunrise
05:17 AM
Sunset
08:55 PM
Length of the day
15 h 37 m

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.

Port Townsend is located in North America in the Northern Hemisphere at a latitude of 48 degrees, along the shores of the Salish Sea. Port Townsend lies within the Washington in United States.

The average annual daytime air temperature in Port Townsend is 61°F (16°C), with the average nighttime temperature being 45°F (7°C). The highest average daily temperature occurs in August, reaching 77°F (25°C), while the lowest is in December at 45°F (7°C). As for nighttime temperatures, the minimum average temperature of 35°F (2°C) is recorded in December, and the maximum is in July, reaching 55°F (13°C).

According to historical data, Port Townsend experiences 153 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 19 rainy days and 6.1 inches (156 mm) of precipitation, while the driest month is July, which typically has 5 rainy days and only 0.8 inches (20 mm) of precipitation.

The average annual water temperature in Salish Sea in Port Townsend is 52°F (11°C). In March, the water reaches its lowest point of the year at 43°F (6°C), while in May, it peaks at 59°F (15°C). In Port Townsend, the water temperature in the Salish Sea never consistently reaches a comfortable level for swimming in any month.

Geographical Location of Port Townsend

Frequently Asked Questions About Port Townsend and its Water Temperatures

What is the current sea temperature in Port Townsend?

The water temperature today in the Salish Sea in Port Townsend is 49°F (9.4°C).

In which months is the water temperature in Port Townsend comfortable for swimming?

It cannot be guaranteed that the water temperature in Port Townsend will be comfortable for swimming in any month of the year.

What is the water temperature in Port Townsend during the winter?

The water temperature in the Salish Sea in Port Townsend during the winter ranges from 43°F to 52°F (6°C to 11°C).

What is the water temperature in Port Townsend during the spring?

The water temperature in the Salish Sea in Port Townsend during the spring ranges from 43°F to 59°F (6°C to 15°C).

What is the water temperature in Port Townsend during the summer?

The water temperature in the Salish Sea in Port Townsend during the summer ranges from 48°F to 59°F (9°C to 15°C).

What is the water temperature in Port Townsend during the fall?

The water temperature in the Salish Sea in Port Townsend during the fall ranges from 46°F to 59°F (8°C to 15°C).

Is it possible to swim in the sea in Port Townsend at any time of the year?

In Port Townsend, 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 Port Townsend in the next month?

In June, the water temperature in the Salish Sea in Port Townsend will range between 48°F (9°C) and 59°F (15°C)