American Lake — Current Water Temperature, Annual Trends and Forecast
This page provides information on the current water temperature in American Lake, trends, monthly ranges and the forecast for the coming days.
Current Water Temperature
Water Temperature in American Lake today is 18.2°C.
Water Temperature: Daily Trends, Historical Records, and Forecast
⚠️ As of today, the minimum water temperature ranges from 65°F (18°C) to 68°F (20°C). This is already quite warm water, which is ideal for most people. Swimming becomes comfortable, and prolonged stays in the water do not cause discomfort. This temperature is perfect for family trips and for those who prefer warmer water. It is also comfortable for water sports such as surfing or swimming. 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
Table of Daily Sea Temperature Data
| Date | Current | Average | Forecast |
|---|---|---|---|
| SEP 14 | 19.4°C | 21.5°C | |
| SEP 15 | 19.1°C | 21.5°C | |
| SEP 16 | 18.6°C | 21.5°C | |
| SEP 17 | 18.3°C | 21.5°C | |
| SEP 18 | 17.8°C | 21.5°C | |
| SEP 19 | 18.0°C | 21.5°C | |
| SEP 20 | 18.3°C | 21.5°C | |
| SEP 21 | 18.2°C | 21.5°C | |
| SEP 22 | 21.5°C | 18.4°C | |
| SEP 23 | 21.5°C | 18.5°C | |
| SEP 24 | 21.5°C | 18.7°C | |
| SEP 25 | 21.5°C | 18.9°C | |
| SEP 26 | 21.5°C | 19.0°C | |
| SEP 27 | 21.5°C | 19.2°C | |
| SEP 28 | 21.5°C | 19.4°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.
Monthly Water Temperature Range (Min, Max & Average)
| Month | Min | Avg | Max |
|---|---|---|---|
| January | 0°C | 3°C | 7°C |
| February | 3°C | 6°C | 8°C |
| March | 5°C | 8°C | 11°C |
| April | 7°C | 11°C | 15°C |
| May | 12°C | 17°C | 21°C |
| June | 13°C | 19°C | 24°C |
| July | 15°C | 24°C | 31°C |
| August | 19°C | 25°C | 30°C |
| September | 17°C | 22°C | 26°C |
| October | 12°C | 16°C | 20°C |
| November | 6°C | 11°C | 14°C |
| December | 4°C | 7°C | 9°C |
American Lake: Water Temperature by Location
American Lake: Weather Forecast
September 22
September 23
September 24
September 25
Location & Local Information
American Lake, near Lakewood in western Washington, experiences typical Pacific Northwest seasonal temperature swings. Surface water in winter commonly sits around the mid-30s to mid-40s °F (about 2–7 °C), rising through spring into the mid-40s to low 60s °F (roughly 7–16 °C). In summer, surface temperatures frequently reach the low to mid 60s up to the low 70s °F (around 16–23 °C), occasionally warming a bit higher during extended heat spells. By fall the lake cools again, with surface readings generally falling back into the 50s–60s °F range (10–16 °C). Deeper water remains significantly colder year-round, so swimmers typically feel a marked drop in temperature away from the surface.
Swimming is allowed at American Lake in designated park and beach areas and the lake is used widely for recreation in warmer months. Local authorities and park signs should be followed because water quality and safety conditions can change; periodic advisories for bacterial contamination or algal blooms, as well as boat traffic and changing weather, can affect whether swimming is recommended. Lifeguard presence and facilities vary by location and season, so checking current posted information before entering the water is advisable.