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Cedar River

Cedar River Current Water Temperature and Forecast

On this page, you will find comprehensive information about the water temperature in Cedar River, including current readings, historical data and trends, monthly averages, as well as weather forecasts and upcoming temperature predictions. We find every spot where you can swim and tell you what the water temperature is there today and throughout the year.

Current Water Temperature in Cedar River

56°F

TODAY

56°F

YESTERDAY

52°F

A WEEK AGO

As of today, the minimum water temperature in the Cedar River 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.

Analysis, Historical Data, and Forecast of Water Temperature

Water Temperature Chart for Cedar River Over the Last 30 Days

Today the water temperature in Cedar River is higher than the same day in previous years. The water temperature range here in May is from 46°F to 70°F. The water temperature is trending upward, and it has increased both over the past 30 days and the past week.

The forecasted water temperature values for Cedar River are presented in the table below.

The actual water temperature values near the shore may differ by a few degrees from the stated values. For the development of the forecast, we use our own mathematical model that takes into account the current water temperature changes, historical data, and key weather trends, including wind strength and direction, and air temperature in each specific region.

Daily Water Temperature Chart

DateCurrentAverageForecast
Apr 2952°F50°F
Apr 3053°F50°F
May 154°F56°F
May 254°F56°F
May 355°F56°F
May 456°F56°F
May 556°F56°F
May 656°F56°F
May 756°F56°F
May 856°F56°F
May 956°F56°F
May 1056°F56°F
May 1156°F56°F
May 1256°F56°F
May 1356°F56°F
May 1456°F56°F
* Current - Actual water temperature value
** Average - Average water temperature on this day in recent years
*** Forecast - Our water temperature forecast

Water Temperature Ranges in Cedar River by Month

January

MinimumAverageMaximum
37°F40°F48°F

February

MinimumAverageMaximum
37°F42°F48°F

March

MinimumAverageMaximum
37°F44°F52°F

April

MinimumAverageMaximum
41°F50°F61°F

May

MinimumAverageMaximum
46°F56°F70°F

June

MinimumAverageMaximum
57°F65°F72°F

July

MinimumAverageMaximum
63°F68°F75°F

August

MinimumAverageMaximum
63°F71°F73°F

September

MinimumAverageMaximum
52°F64°F66°F

October

MinimumAverageMaximum
46°F56°F61°F

November

MinimumAverageMaximum
37°F47°F61°F

December

MinimumAverageMaximum
37°F40°F46°F

Monthly Water Temperature Histogram for Cedar River

Water Temperature in Cities and Towns on Cedar River

Maple Valley
United States (Washington)
55°F
United States (Washington)
56°F

Cedar River Weather

MAY 7

50°F / 79°F
overcast

rain: 29% | wind: 7 mph

MAY 8

41°F / 63°F
slight rain

rain: 64% | wind: 6 mph

MAY 9

41°F / 72°F
overcast

rain: 2% | wind: 7 mph

MAY 10

45°F / 70°F
overcast

rain: 5% | wind: 6 mph

MAY 11

45°F / 61°F
light drizzle

rain: 33% | wind: 7 mph

MAY 12

41°F / 50°F
moderate drizzle

rain: 41% | wind: 5 mph

Water Temperature in Cedar River: General Trends and Swimming Opportunities

Source Cascade Range
• elevation 2,220 ft (680 m)
Mouth Lake Washington
Length 45 mi (72 km)

The Cedar River in Washington State is a vital waterway known for its picturesque surroundings and ecological importance. The river’s water temperature is influenced by the season and its mountainous origin, with summer temperatures typically ranging from 55°F to 65°F (13°C to 18°C). In cooler months, the water temperature can drop significantly, often falling below 50°F (10°C), especially in spring when snowmelt contributes to its flow.

Swimming in the Cedar River is possible in certain areas, but it requires caution. The water is often chilly, even in summer, which can be refreshing but challenging for extended swimming sessions. Popular spots for wading or taking a quick dip include calmer stretches near parks or designated access points, such as areas around Renton or along the Cedar River Trail. However, the river’s flow can be swift in certain sections, and swimmers should be mindful of currents and uneven riverbeds.

For a safer swimming experience, visitors may prefer nearby lakes, such as Lake Washington or Lake Wilderness, which offer warmer and calmer waters. The Cedar River remains a popular destination for kayaking, fishing, and enjoying the natural beauty of the Pacific Northwest, even if swimming is not its primary attraction.

Geographical Location of Cedar River

Nearby Rivers

Frequently Asked Questions About Cedar River and its Water Temperatures

What is the current water temperature in Cedar River?

The water temperature today in Cedar River ranges from 55°F (12.6°C) to 56°F (13.5°C).

What is the water temperature in Cedar River during the summer months?

The average water temperature in Cedar River during the summer months is typically between 65°F to 71°F (19°C to 21°C), and it can reach up to 75°F (24°C) at its warmest. However, in some years, the temperature may exceed this range.

What is the water temperature in Cedar River in May?

The average water temperature in Cedar River in May ranges from 46°F to 70°F (8°C to 21°C).

What is the water temperature in Cedar River in September?

The average water temperature in Cedar River in September is typically between 52°F to 66°F (11°C to 19°C).

Where does Cedar River flow?

Cedar River flows through United States (Washington).

Is it possible to swim in the Cedar River?

Yes, it is possible to swim in the Cedar River. However, one should always check local regulations and conditions for safe swimming beforehand.

What major cities are located on Cedar River?

Cities along the course of Cedar River include Renton (Washington).