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Coupeville
© J.C.K. Griffin
Water Temperature in the Salish Sea in Coupeville, Washington: Current, Historical Data and Forecast
On this page, you will find comprehensive information about the sea temperature in Coupeville 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 Coupeville
9.1°C
TODAY
9.0°C
YESTERDAY
8.4°C
A WEEK AGO
Analysis, Historical Data, and Forecast of Water Temperature
Today sea water temperature in the Salish Sea in Coupeville is 9.1°C. 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 Coupeville Over the Last 30 Days
The water temperature in Coupeville 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 Coupeville will remain nearly unchanged in the coming days, its value will be 8.9°C.
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 Coupeville 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 |
|---|---|---|---|
| Apr 9 | 8.4°C | 8.5°C | |
| Apr 10 | 8.5°C | 8.0°C | |
| Apr 11 | 8.6°C | 8.0°C | |
| Apr 12 | 8.3°C | 8.5°C | |
| Apr 13 | 8.8°C | 8.3°C | |
| Apr 14 | 8.7°C | 9.0°C | |
| Apr 15 | 9.0°C | 8.5°C | |
| Apr 16 | 8.8°C | 9.0°C | |
| Apr 17 | 8.5°C | 9.0°C | |
| Apr 18 | 8.3°C | 8.9°C | |
| Apr 19 | 8.3°C | 8.8°C | |
| Apr 20 | 9.0°C | 8.8°C | |
| Apr 21 | 8.5°C | 8.8°C | |
| Apr 22 | 9.3°C | 8.9°C | |
| Apr 23 | 9.0°C | 8.9°C | |
| Apr 24 | 8.8°C | 8.9°C |
Sea Temperature in Coupeville Throughout the Year
Throughout the year, the sea temperature in Coupeville never exceeds 64°F (18°C).
Below is the annual chart of sea temperature changes in the Salish Sea in Coupeville.
January
| Minimum | Average | Maximum |
|---|---|---|
| 6°C | 8°C | 10°C |
February
| Minimum | Average | Maximum |
|---|---|---|
| 6°C | 8°C | 10°C |
March
| Minimum | Average | Maximum |
|---|---|---|
| 6°C | 8°C | 10°C |
April
| Minimum | Average | Maximum |
|---|---|---|
| 6°C | 8°C | 10°C |
May
| Minimum | Average | Maximum |
|---|---|---|
| 6°C | 9°C | 12°C |
June
| Minimum | Average | Maximum |
|---|---|---|
| 6°C | 9°C | 12°C |
July
| Minimum | Average | Maximum |
|---|---|---|
| 8°C | 11°C | 14°C |
August
| Minimum | Average | Maximum |
|---|---|---|
| 10°C | 12°C | 14°C |
September
| Minimum | Average | Maximum |
|---|---|---|
| 9°C | 11°C | 13°C |
October
| Minimum | Average | Maximum |
|---|---|---|
| 8°C | 10.5°C | 13°C |
November
| Minimum | Average | Maximum |
|---|---|---|
| 7°C | 9°C | 11°C |
December
| Minimum | Average | Maximum |
|---|---|---|
| 6°C | 8.5°C | 11°C |
Monthly Water Temperature Histogram for Salish Sea in Coupeville
You can explore detailed data on how the water temperature in Coupeville varies each month:
What Beaches Are There In and Around Coupeville?
Coupeville Wharf
Coupeville Wharf is a 4-stars sandy beach, is located directly in Coupeville. There is parking. There are restrooms. There are cafés. Coupeville Wharf 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.
Coupeville Viewing Platform And Beach Access
Coupeville Viewing Platform And Beach Access is a 4-stars sandy beach, is located directly in Coupeville. There is parking. There are restrooms. There are cafés. Coupeville Viewing Platform And Beach Access 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.
Captain Coupe Park
Captain Coupe Park is a 3-stars sandy beach, is located directly in Coupeville. There is parking. Captain Coupe Park 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.
Mariner's Cove Boat Launch
Mariner's Cove Boat Launch is a 1-stars sandy beach, located in a 2 km (1 miles) radius of Coupeville.
Penn Cove Beach Access
Penn Cove Beach Access is a 1-stars sandy beach, located in a 2 km (1 miles) radius of Coupeville.
Maple Grove Boat Launch
Maple Grove Boat Launch is a 4-stars sandy beach, located in a 2 km (1 miles) radius of Coupeville. There is parking. There are restrooms. Maple Grove Boat Launch 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.
Monroe Landing
Monroe Landing is a 2-stars sandy beach, located in a 2 km (1 miles) radius of Coupeville. Monroe 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.
East San De Fuca
East San De Fuca is a 3-stars sandy beach, located in a 3 km (2 miles) radius of Coupeville. There is parking. East San De Fuca 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.
West Penn Cove
West Penn Cove is a 2-stars sandy beach, located in a 3 km (2 miles) radius of Coupeville. There is parking. West Penn Cove is an excellent spot for fishing enthusiasts, offering good opportunities to catch local fish.
San De Fuca
San De Fuca is a 2-stars sandy beach, located in a 3 km (2 miles) radius of Coupeville. There is parking.
Long Point Beach
Long Point Beach is a 3-stars sandy beach, located in a 3 km (2 miles) radius of Coupeville. There is parking. Long Point Beach 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.
Mueller Park Beach Access
Mueller Park Beach Access is a 3-stars sandy beach, located in a 3 km (2 miles) radius of Coupeville. There is parking. Mueller Park Beach Access 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.
Ebeys Landing
Ebeys Landing is a 3-stars sandy beach, located in a 4 km (2 miles) radius of Coupeville. There is parking. There are restrooms. The calm waters make this beach ideal for swimming, providing a safe and enjoyable experience for all visitors.
South Ebey's Landing
South Ebey's Landing is a 2-stars sandy beach, located in a 4 km (2 miles) radius of Coupeville. There is parking.
Bluff Trail
Bluff Trail is a 1-stars sandy beach, located in a 4 km (2 miles) radius of Coupeville.
Grasser's Lagoon
Grasser's Lagoon is a 2-stars sandy beach, located in a 4 km (2 miles) radius of Coupeville. There is parking.
Snatelum Point
Snatelum Point is a 1-stars sandy beach, located in a 4 km (2 miles) radius of Coupeville. Snatelum Point is an excellent spot for fishing enthusiasts, offering good opportunities to catch local fish.
Fort Ebey State Park
Fort Ebey State Park is a 4-stars sandy beach, located in a 6 km (4 miles) radius of Coupeville. There is parking. There are restrooms. It is suitable for surfing. The calm waters make this beach ideal for swimming, providing a safe and enjoyable experience for all visitors.
Libbey Beach County Park
Libbey Beach County Park is a 3-stars sandy beach, located in a 6 km (4 miles) radius of Coupeville. There is parking. There are restrooms. Libbey Beach County Park is an excellent spot for fishing enthusiasts, offering good opportunities to catch local fish.
Ebey's Landing State Park
Ebey's Landing State Park is a 4-stars sandy beach, located in a 6 km (4 miles) radius of Coupeville. There is parking. There are restrooms. There are cafés. Ebey's Landing State Park 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.
Coupeville Weather
APRIL 17
7°C / 15°C
clear skyhumidity: 65% | wind: 2 km/h
APRIL 18
8°C / 16°C
overcast clouds: 85-100%humidity: 78% | wind: 3 km/h
APRIL 19
6°C / 9°C
light rainhumidity: 83% | wind: 3 km/h
Sea Temperature in the Salish Sea in Coupeville: 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.
Coupeville is located in North America in the Northern Hemisphere at a latitude of 48 degrees, along the shores of the Salish Sea. Coupeville lies within the Washington in United States.
The average annual daytime air temperature in Coupeville 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, Coupeville 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 Coupeville is 48°F (9°C). In January, the water reaches its lowest point of the year at 43°F (6°C), while in July, it peaks at 57°F (14°C). In Coupeville, the water temperature in the Salish Sea never consistently reaches a comfortable level for swimming in any month.
Geographical Location of Coupeville
Nearby Cities
Frequently Asked Questions About Coupeville and its Water Temperatures
What is the current sea temperature in Coupeville?
The water temperature today in the Salish Sea in Coupeville is 48°F (9.1°C).
In which months is the water temperature in Coupeville comfortable for swimming?
It cannot be guaranteed that the water temperature in Coupeville will be comfortable for swimming in any month of the year.
What is the water temperature in Coupeville during the winter?
The water temperature in the Salish Sea in Coupeville during the winter ranges from 43°F to 52°F (6°C to 11°C).
What is the water temperature in Coupeville during the spring?
The water temperature in the Salish Sea in Coupeville during the spring ranges from 43°F to 54°F (6°C to 12°C).
What is the water temperature in Coupeville during the summer?
The water temperature in the Salish Sea in Coupeville during the summer ranges from 43°F to 57°F (6°C to 14°C).
What is the water temperature in Coupeville during the fall?
The water temperature in the Salish Sea in Coupeville during the fall ranges from 45°F to 55°F (7°C to 13°C).
Is it possible to swim in the sea in Coupeville at any time of the year?
In Coupeville, 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 Coupeville in the next month?
In May, the water temperature in the Salish Sea in Coupeville will range between 43°F (6°C) and 54°F (12°C)