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Water temperature in Coupeville (WA) in January

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Is it warm enough to swim in Coupeville in January? Average water temperature in Coupeville in January is 45.9°F and therefore is not suitable for comfortable swimming. The warmest sea in Coupeville in January is 48.6°F, and the coldest is 40.8°F. Average high air temperature in Coupeville in January is 44°F, and average low temperature is 34°F. To find out the sea temperature today and in the coming days, go to Current sea temperature in Coupeville

Changes water temperature in Coupeville in January 2025, 2024

To get an accurate forecast for the water temperature in Coupeville for any chosen month, compare two years within a 10 year range using the chart below. In addition to the sea water temperature in Coupeville, the selected years in the table also show the values of the maximum and minimum temperatures on each of the days of January.

You can choose any other years:

Year 1:   Year 2:


Day 2025 2024 Min Max
January 147.5°F48.2°F42.3°F48.2°F
January 247.3°F48°F42.3°F48°F
January 347.1°F47.7°F42.3°F47.7°F
January 448°F48°F42.1°F48°F
January 547.7°F47.7°F42.1°F47.7°F
January 647.7°F47.3°F41.7°F47.7°F
January 747.5°F47.7°F41.5°F47.7°F
January 847.1°F47.5°F41.5°F47.5°F
January 947.1°F48°F41.5°F48°F
January 1047.3°F47.7°F41.4°F47.7°F
January 1147.8°F48.6°F41.2°F48.6°F
January 1247.5°F47.8°F41.5°F47.8°F
January 1347.5°F47.1°F41.2°F47.5°F
January 1446.6°F47.3°F41.2°F47.5°F
January 1546.8°F46.9°F41.2°F47.3°F
Day 2025 2024 Min Max
January 1646.6°F47.1°F40.8°F47.5°F
January 1747.3°F46.9°F40.8°F47.7°F
January 1847.5°F46.9°F41.4°F47.7°F
January 1946.9°F46.8°F41.7°F48°F
January 2046.6°F46.8°F42.3°F47.8°F
January 2146.8°F46.6°F42.6°F47.5°F
January 2246.2°F46.6°F42.8°F47.8°F
January 2346.2°F46.6°F43.2°F47.7°F
January 2446.8°F46.8°F43.5°F48.2°F
January 2546.9°F46°F43.7°F48°F
January 2646.9°F46°F44.1°F48°F
January 2746.8°F45.9°F43.9°F47.8°F
January 2847.3°F45.9°F43.9°F47.7°F
January 2947.1°F45.7°F43.9°F47.7°F
January 3046.8°F45.7°F44.1°F47.5°F
January 3146.4°F45.7°F44.2°F47.3°F
Coupeville water temp chart in January

Average water temperature in Coupeville in January over a decade

20162017201820192020
47.1°F46.2°F46.6°F46.9°F46.4°F
20212022202320242025
46.6°F45.9°F46°F46.9°F47.1°F

Coupeville sea state in January

Chart comparing the height of waves in Coupeville in January over the past years. The red line indicates the height of the waves when swimming in the sea is prohibited. To view the current sea conditions, click on the graph.

Waves height in Coupeville in January

Weather and climate in Coupeville in January

This data display average monthly climate indicators in Coupeville in January based on our historical weather readings over a period of ten years. In addition to temperature, we include data on the number of rainy and sunny days so you can have all the information about your destination before your trip

  • Average HIGH temperature44°F
  • Average LOW temperature34°F
  • Average rainfall days15 days
  • Average rainfall61mm/2.4''
  • Average snowfall64mm/2.5''

Coupeville water temperature during other months:

You can also view information about water temperature for other months by clicking on the month button below

Where is the warm sea water in January?

Want to know where the water temperature in January is good for swimming? Select the continent of interest, the day of the month and the required water temperature

Region
Date (day and month)
Water temperature: min 60°F
 Average temperature  Maximum temperature

Temperature in neighboring cities

The nearest locations with the average water temperature in January. In addition, the maximum and minimum water temperatures for that month, recorded over the last decade, are shown

AvrMinMax
Oak Harbor45.7°F42.3°F47.8°F
Port Townsend46°F40.1°F48.6°F
Bowman Bay45.7°F42.8°F47.8°F
Deception Pass45.7°F42.8°F47.8°F
Discovery Bay46°F41.5°F48.4°F
Sequim46°F42.6°F48.2°F
Port Ludlow46°F41.7°F48.9°F
Langley45.9°F42.1°F48.4°F
Warm Beach45.7°F41.5°F48.4°F
Lopez Island45.9°F43.7°F48.2°F

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[1] - The "Blue Flag" is awarded to beaches which fulfill a number of criteria, including: the quality of the bathing water, which must be in accordance with the relevant European Union Directive environmental education and information and beach area management and safety.

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Our report for Coupeville is compiled using satellite data together with in-situ observations to get the most reliable daily data of sea surface temperatures, surf forecasts, current temperatures and weather forecasts.

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