Aberdeen — Water Temperature, Sea Conditions & Trends

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 Aberdeen 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 Aberdeen will be 13.4°C in the next 7 days. See the table below for daily data for the upcoming week.

Table of Daily Sea Temperature Data

Annual Water Temperature Overview by Month

Monthly Water Temp Ranges

30°C

25°C

20°C

15°C

10°c

5°C

0°C

Annual Water Temperature Trend

Aberdeen, Washington, sits at the head of the Chehalis River and close to Grays Harbor, so water conditions vary between sheltered river and bay waters and the colder nearby Pacific coast. Seasonal temperatures are generally cool: coastal and harbor surface waters typically range from about 6–10 °C in winter and spring to roughly 9–14 °C in summer, with short-lived warm spells sometimes pushing harbor shallows toward the mid-teens. River temperatures follow a similar pattern but can be more variable, commonly around 4–8 °C in late winter, warming through spring to about 8–12 °C, and reaching the low to high teens — occasionally up to about 18–20 °C in shallow, slow-moving sections during warm summers. In autumn the water usually cools back into the single digits to low teens. Local factors such as tides, depth, runoff and recent weather can change temperatures noticeably from day to day.