Water temperature in IJsselmeer

This data the coastal IJsselmeer water temperature today, tomorrow and the upcoming days. Besides, you can also get information about the weather and surf forecast, as well as the data on sunrise / sunset and moonrise / moonset at a given point on any given day.

Current water temperature in IJsselmeer

Water temperature in IJsselmeer today is 18.7°C. Based on our historical data over a period of ten years, the warmest water in this day in IJsselmeer was recorded in 2024 and was 20.6°C, and the coldest was recorded in 2010 at 16.4°C. Water temperature in IJsselmeer is expected to drop to 17.1°C in the next 10 days. September average water temperature in IJsselmeer is 17°C, the minimum temperature is 13.9°C, and the maximum is 23.1°C.

The swimming season in IJsselmeer lasts from July to August. During those months, IJsselmeer water temperature does not drop below 20°C and therefore suitable for comfortable swimming. The average water temperature in IJsselmeer in winter reaches 5°C, in spring 10.1°C, in summer the average temperature rises to 18.9°C, and in autumn it is 13.1°C.

IJsselmeer water temperature now

Surf Forecast in IJsselmeer for today

Another important indicators for a comfortable holiday on the beach are the presence and height of the waves, as well as the speed and direction of the wind. Please find below data on the swell size for IJsselmeer. We calculate the swell size based on the mean wave height (trough to crest) of each third highest wave. For more information on surf forecasts for the next ten days, please visit sea state forecast IJsselmeer. Data in table shown for 5 September 2025, time in GMT 0 format (you can change the time zone on the sea state forecast page)

Surf report in IJsselmeer

IJsselmeer weather forecast

Current temperature and weather

Data in a table show IJsselmeer temperature today (5 September 2025). For more information and forecast for a few days, go to the weather forecast IJsselmeer.

0-3 h	3-6 h	6-9 h	9-12 h
16°C	14.3°C	13.6°C	17.9°C

12-15 h	15-18 h	18-21 h	21-24 h
19.6°C	19.6°C	17.7°C	13.9°C

IJsselmeer water temperature by month

These figures shows the average, minimum and maximum monthly water temperature in IJsselmeer. In addition to the table values, the graph below displays of changes average surface temperature during the year. Values are calculated based on the data over the past 10 years. Using them, you can check the water temperature in IJsselmeer on any day of this period that interests you. Click on the month link and you will see a table for each day, or alternatively you can view the temperature curve of the month and select 2 different years you want to compare, either in a table or as a curve

Chart monthly average water temperature in IJsselmeer

The nearest beaches and cities from IJsselmeer with the water temperature today, as well as the air temperature and the state of the weather during the day and the average wave height for today

	Water	Weather		Wave
Harlingen	18.4°C	19°C		0.62 m
Den Helder	18.8°C	17°C		0.86 m
Egmond Aan Zee	19.1°C	18°C		0.8 m
Castricum	19.1°C	18°C		0.82 m
IJmuiden	19.2°C	19°C		0.86 m
Wijk aan Zee	19.2°C	19°C		0.86 m
Zandvoort	19.2°C	19°C		0.87 m
Bloemendaal aan Zee	19.2°C	19°C		0.87 m
Haarlem	19.2°C	19°C		0.87 m
Amsterdam	19.4°C	19°C		0.82 m

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Our report for IJsselmeer is compiled using satellite data together with in-situ observations to get the most reliable daily data of sea surface temperatures, surf forecasts, current temperatures and weather forecasts.