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Alster River

Alster River Current Water Temperature and Forecast

On this page, you will find comprehensive information about the water temperature in Alster 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 Alster River

64°F

TODAY

64°F

YESTERDAY

66°F

A WEEK AGO

As of today, the minimum water temperature in the Alster River ranges from 60°F (15°C) to 65°F (18°C). The water is comfortable for most people, making it an ideal range for water sports enthusiasts. The temperature does not cause significant discomfort, and swimming will be pleasant for the majority. However, it's important to remember that prolonged exposure to the water can still lead to cooling, so it's essential to monitor the time spent in the water, especially for children or elderly people.

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 Alster River Over the Last 30 Days

Today the water temperature in Alster River is higher than the same day in previous years. The water temperature range here in September is from 59°F to 73°F. The water temperature has decreased over the past 7 days but has increased over the past month.

The forecasted water temperature values for Alster 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
Sep 766°F64°F
Sep 866°F64°F
Sep 965°F64°F
Sep 1065°F64°F
Sep 1165°F64°F
Sep 1265°F64°F
Sep 1364°F64°F
Sep 1464°F64°F
Sep 1564°F64°F
Sep 1664°F64°F
Sep 1764°F64°F
Sep 1864°F64°F
Sep 1964°F64°F
Sep 2064°F64°F
Sep 2164°F64°F
Sep 2264°F64°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 Alster River by Month

January

MinimumAverageMaximum
34°F37°F41°F

February

MinimumAverageMaximum
36°F39°F43°F

March

MinimumAverageMaximum
39°F44°F48°F

April

MinimumAverageMaximum
46°F51°F57°F

May

MinimumAverageMaximum
52°F57°F63°F

June

MinimumAverageMaximum
61°F68°F75°F

July

MinimumAverageMaximum
63°F69°F77°F

August

MinimumAverageMaximum
64°F69°F73°F

September

MinimumAverageMaximum
59°F64°F73°F

October

MinimumAverageMaximum
50°F56°F61°F

November

MinimumAverageMaximum
41°F46°F52°F

December

MinimumAverageMaximum
34°F38°F43°F

Monthly Water Temperature Histogram for Alster River

Water Temperature in Cities and Towns on Alster River

Sülfeld
Germany (Schleswig-Holstein)
64°F
Wohldorf-Ohlstedt
Germany (Hamburg)
64°F

Alster River Weather

SEPTEMBER 14

52°F / 66°F
overcast

rain: 26% | wind: 10 mph

SEPTEMBER 15

55°F / 72°F
slight rain showers

rain: 63% | wind: 16 mph

SEPTEMBER 16

55°F / 63°F
overcast

rain: 20% | wind: 15 mph

SEPTEMBER 17

55°F / 64°F
moderate rain

rain: 29% | wind: 15 mph

Water Temperature in Alster River: General Trends and Swimming Opportunities

Source:
• location Henstedt-Ulzburg
• coordinates 53°45′49.1″N 10°0′17.4″E
• elevation 31 m (102 ft)
Mouth Elbe
• location Hamburg
• coordinates 53°32′40″N 9°59′0″E
• elevation 4 m (13 ft)
Length 56 km (35 mi)

The Alster River in Hamburg, Germany, is a popular spot for both locals and tourists, especially during the warmer months. The water temperature of the Alster varies depending on the season, with the summer months seeing temperatures rise to between 18°C and 22°C (64°F - 72°F). These temperatures make it suitable for swimming, especially in designated areas like the Alster Swimming Zone near the city center. The Alster is relatively clean compared to many other rivers in Germany, as it is fed by lakes and is part of a highly managed water system. As such, it is one of the more popular places for swimming, kayaking, and other water activities.

Swimming in the Alster is safe when undertaken in designated swimming areas, though the water temperature can be lower in the spring and fall, requiring a wetsuit for comfort. Since the river is surrounded by urban areas, it can sometimes be affected by pollution, but the local authorities regularly monitor water quality. The Alster is also home to several recreational spots and parks, making it an attractive place for swimmers to enjoy the natural beauty of Hamburg. However, the river’s currents can be strong in certain parts, so swimmers should remain cautious in areas with faster-moving water.

Geographical Location of Alster River

Frequently Asked Questions About Alster River and its Water Temperatures

What is the current water temperature in Alster River?

The water temperature today in Alster River is 64°F (17.7°C).

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

The average water temperature in Alster River during the summer months is typically between 69°F to 69°F (20°C to 20°C), and it can reach up to 77°F (25°C) at its warmest. However, in some years, the temperature may exceed this range.

What is the water temperature in Alster River in May?

The average water temperature in Alster River in May ranges from 52°F to 63°F (11°C to 17°C).

What is the water temperature in Alster River in September?

The average water temperature in Alster River in September is typically between 59°F to 73°F (15°C to 23°C).

Where does Alster River flow?

Alster River flows through Germany (Schleswig-Holstein, Hamburg).

Is it possible to swim in the Alster River?

Yes, it is possible to swim in the Alster River in Hamburg, Germany. However, swimming is not recommended due to urban pollution and heavy boat traffic.