Copalis Beach — Water Temperature, Sea Conditions & Trends
This page provides clear and up-to-date information about water temperature for Copalis Beach (Washington, United States). It includes the current water temperature, daily data for the last month presented in a simple chart, and a 7-day forecast. The page also compares today’s value with typical averages for this period, shows usual monthly ranges during the year, and lists nearby beaches with short descriptions. Local weather for the next few days and general details about Copalis Beach help you plan your visit and choose the best time for swimming.
Current Water Temperature
Water temperature in Copalis Beach in the Pacific Ocean today is 13°C.
Water Temperature: Daily Trends, Historical Records, and Forecast
❌ As of today, the minimum water temperature ranges from 54°F (12°C) to 60°F (15°C). The water is significantly warmer, and swimming becomes possible for most people. However, caution may still be required for prolonged stays in the water, as extended exposure can cause discomfort. This is a suitable temperature range for short swims and for those accustomed to cooler water. For more comfortable swimming, it is recommended to use proper gear.
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 Over the Last 30 Days
Water temperature in Copalis Beach has risen over the last week and month. Currently, the sea water temperature at this location matches the average for this day in previous years.
According to our forecast, Water temperature in Copalis Beach will be 13.9°C in the next 7 days. See the table below for daily data for the upcoming week.
Table of Daily Sea Temperature Data
| Date | Current | Average | Forecast |
|---|---|---|---|
| JUN 1 | 12.6°C | 13.0°C | |
| JUN 2 | 12.1°C | 12.5°C | |
| JUN 3 | 11.8°C | 13.0°C | |
| JUN 4 | 11.4°C | 12.0°C | |
| JUN 5 | 11.3°C | 12.8°C | |
| JUN 6 | 11.6°C | 13.0°C | |
| JUN 7 | 12.4°C | 12.8°C | |
| JUN 8 | 12.6°C | 13.0°C | |
| JUN 9 | 13.3°C | 13.0°C | 13.3°C |
| JUN 10 | 12.8°C | 13.4°C | |
| JUN 11 | 13.8°C | 13.5°C | |
| JUN 12 | 13.5°C | 13.6°C | |
| JUN 13 | 13.0°C | 13.7°C | |
| JUN 14 | 13.8°C | 13.8°C | |
| JUN 15 | 13.8°C | 13.8°C | |
| JUN 16 | 13.8°C | 13.9°C |
* Current - Actual water temperature value
** Average - Average water temperature on this day in recent years
*** Forecast - Our water temperature forecast
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 to enhance accuracy.
Water temperature data for this location 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.
Annual Water Temperature Overview by Month
Monthly Water Temp Ranges
Annual Water Temperature Trend
Copalis Beach on Washington’s coast faces the cold Pacific and experiences water temperatures that remain low throughout the year. Typical seasonal averages run from roughly 6–9 °C in winter, warming to about 8–11 °C in spring, with the highest readings in summer near 11–14 °C, and cooling again to roughly 9–12 °C in autumn. Local factors such as upwelling, onshore winds and tidal exchange keep the nearshore water notably chilly even at the warmest times, and extreme highs above 15 °C are uncommon. Air temperature and cloud cover can vary, so perceived comfort at the shoreline often differs from the thermometer reading in the water.
Monthly Water Temperature Range (Min, Max & Average)
| Month | Min | Avg | Max |
|---|---|---|---|
| January | 7°C | 9°C | 11°C |
| February | 7°C | 9°C | 11°C |
| March | 7°C | 9°C | 12°C |
| April | 8°C | 10°C | 12°C |
| May | 9°C | 12°C | 15°C |
| June | 10°C | 14°C | 17°C |
| July | 11°C | 14°C | 18°C |
| August | 11°C | 14°C | 17°C |
| September | 12°C | 14°C | 16°C |
| October | 9°C | 13°C | 15°C |
| November | 8°C | 11°C | 13°C |
| December | 7°C | 10°C | 12°C |
* Click on a month to view detailed water temperature data.
Copalis Beach: Weather Forecast
June 10
June 11
June 12
Location, Beaches & Local Information
Nearby Beaches & Facilities
Copalis Beach
Griffin Bay State Park
Griffiths-Priday State Park
Iron Springs
Roosevelt Beach Access
Quinault Beach
Sampson
Seabrook Beach
Oyhut And Illahee Beach North
Swimming Conditions
Swimming at Copalis Beach is possible but limited by the cool temperatures, strong currents and shifting tides typical of this stretch of coastline. Visitors looking to enter the water should be prepared for cold exposure and are best served by wearing wetsuits or limiting time in the surf; inexperienced swimmers should exercise caution because there are few lifeguards and rip currents can be hazardous. The beach is well suited to shoreline activities, tidepool exploration and surfing or bodyboarding with proper gear, and the calmer, shallower intertidal zones may offer gentler wading when tides permit. For a traditional beach holiday focused on swimming and lounging in warm water, travelers may find the ocean here brisk, but for those equipped and informed, Copalis provides rewarding coastal recreation and scenic seaside time.