Ohop Lake — Current Water Temperature, Annual Trends and Forecast
This page provides information on the current water temperature in Ohop Lake, trends, monthly ranges and the forecast for the coming days.
Current Water Temperature
Water Temperature in Ohop Lake today is 18.4°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 | 19.1°C | 21.5°C | |
| SEP 15 | 19.1°C | 21.5°C | |
| SEP 16 | 19.1°C | 21.5°C | |
| SEP 17 | 18.3°C | 21.5°C | |
| SEP 18 | 18.2°C | 21.5°C | |
| SEP 19 | 18.1°C | 21.5°C | |
| SEP 20 | 18.5°C | 21.5°C | |
| SEP 21 | 18.4°C | 21.5°C | |
| SEP 22 | 21.5°C | 18.6°C | |
| SEP 23 | 21.5°C | 18.7°C | |
| SEP 24 | 21.5°C | 18.9°C | |
| SEP 25 | 21.5°C | 19.0°C | |
| SEP 26 | 21.5°C | 19.2°C | |
| SEP 27 | 21.5°C | 19.3°C | |
| SEP 28 | 21.5°C | 19.5°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 | 2°C | 5°C | 8°C |
| March | 4°C | 8°C | 11°C |
| April | 7°C | 11°C | 15°C |
| May | 11°C | 16°C | 21°C |
| June | 13°C | 19°C | 24°C |
| July | 15°C | 23°C | 31°C |
| August | 19°C | 25°C | 30°C |
| September | 17°C | 22°C | 26°C |
| October | 13°C | 17°C | 20°C |
| November | 7°C | 11°C | 14°C |
| December | 4°C | 7°C | 10°C |
Ohop Lake: Water Temperature by Location
Ohop Lake: Weather Forecast
September 22
September 23
September 24
September 25
Location & Local Information
Ohop Lake, a shallow lake in western Washington, warms and cools with the seasons, so surface temperatures vary noticeably. In winter surface water often sits near freezing to the low 40s °F (about 1–6 °C), while spring typically brings a rise into the mid-40s to low 60s °F (7–17 °C). Summer is when the lake is warmest, with surface readings commonly in the mid-60s to mid-70s °F (18–24 °C) and occasionally reaching the upper 70s °F (25–26 °C) on hot, calm afternoons. By fall the surface cools again, usually dropping back into the mid-40s to low 60s °F (7–17 °C). Because Ohop Lake is relatively shallow, surface temperatures respond quickly to sunny periods, but deeper water remains appreciably colder.
Swimming at Ohop Lake is generally permitted and is most comfortable during the warm summer months when surface temperatures exceed about 65 °F (18 °C). Visitors should be mindful that even on warm days colder pockets and quick depth changes can create chilly conditions, and that water quality or algal bloom advisories can temporarily limit safe swimming. Boating activity, submerged vegetation and seasonally variable water clarity also affect suitability for swimming, so checking current local conditions and posted guidance before entering the water is advisable.