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Rotterdam

Water Temperature in the North Sea in Rotterdam, Netherlands: Current, Historical Data and Forecast

On this page, you will find comprehensive information about the sea temperature in Rotterdam in Netherlands, 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 Rotterdam

12.2°C

TODAY

11.5°C

YESTERDAY

11.5°C

A WEEK AGO

All water temperature data is now available in our official mobile apps — for iOS and Android.

Analysis, Historical Data, and Forecast of Water Temperature

Today sea water temperature in the North Sea in Rotterdam is 12.2°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.

Water Temperature Chart for North Sea in Rotterdam Over the Last 30 Days

The water temperature in Rotterdam today is lower than both a week ago and a month ago. Today's sea temperature is generally in line with historical values for this day.

According to our forecast, the sea temperature in Rotterdam will remain nearly unchanged in the coming days, its value will be 12.2°C.

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 across Netherlands to enhance accuracy.

Water temperature data for Rotterdam and nearby towns and resorts is gathered from various sources, including buoys and satellite sea and ocean surface maps provided by the NOAA agency. We also incorporate data from local authorities in each specific location worldwide to ensure more accurate temperature readings.

Table of Daily Sea Temperature Data

DateCurrentAverageForecast
May 611.5°C10.5°C
May 711.3°C10.8°C
May 811.8°C10.5°C
May 911.2°C11.3°C
May 1011.6°C10.8°C
May 1110.7°C11.5°C
May 1211.5°C11.5°C
May 1312.2°C11.8°C
May 1411.8°C12.1°C
May 1511.8°C12.1°C
May 1612.0°C12.1°C
May 1712.3°C12.1°C
May 1812.3°C12.1°C
May 1912.5°C12.1°C
May 2012.3°C12.1°C
May 2113.3°C12.2°C
* Current - Actual water temperature value
** Average - Average water temperature on this day in recent years
*** Forecast - Our water temperature forecast

Sea Temperature in Rotterdam Throughout the Year

Throughout the year, the sea temperature in Rotterdam exceeds 77°F (25°C) for 0 days, exceeds 72°F (22°C) for 0 days, and exceeds 64°F (18°C) for 59 days.

Below is the annual chart of sea temperature changes in the North Sea in Rotterdam.

January

MinimumAverageMaximum
5°C7°C9°C

February

MinimumAverageMaximum
4°C6.5°C9°C

March

MinimumAverageMaximum
4°C6.5°C9°C

April

MinimumAverageMaximum
6°C9°C12°C

May

MinimumAverageMaximum
8°C12°C16°C

June

MinimumAverageMaximum
12°C15°C18°C

July

MinimumAverageMaximum
15°C17.5°C20°C

August

MinimumAverageMaximum
17°C19.5°C22°C

September

MinimumAverageMaximum
15°C18°C21°C

October

MinimumAverageMaximum
12°C15.5°C19°C

November

MinimumAverageMaximum
10°C13°C16°C

December

MinimumAverageMaximum
6°C9°C12°C

Monthly Water Temperature Histogram for North Sea in Rotterdam

You can explore detailed data on how the water temperature in Rotterdam varies each month:

Rotterdam Weather

MAY 14

8°C / 19°C
overcast clouds: 85-100%

humidity: 70% | wind: 4 km/h

MAY 15

6°C / 19°C
scattered clouds: 25-50%

humidity: 59% | wind: 4 km/h

MAY 16

9°C / 21°C
clear sky

humidity: 66% | wind: 3 km/h

South Holland, NetherlandsSouth Holland, NetherlandsSouth Holland, Netherlands

Sea Temperature in the North Sea in Rotterdam: General Trends and Swimming Opportunities

Original name
Rotterdam
The Local Time
16:17
Time Zone
UTC+2
Sunrise
05:54
Sunset
21:23
Length of the day
15 h 28 m

South Holland, Netherlands, has a moderate maritime (oceanic) climate, characterized by mild summers (average highs around 20-22°C or 68-71.6°F) and cool winters (average lows around 0-3°C or 32-37.4°F). The coastal area experiences relatively high humidity with significant precipitation spread throughout the year, often brought in by winds from the North Sea.

Rotterdam is located in Europe in the Northern Hemisphere at a latitude of 52 degrees, along the shores of the North Sea. Rotterdam lies within the South Holland in Netherlands.

The average annual daytime air temperature in Rotterdam is 13°C (55°F), with the average nighttime temperature being 7°C (45°F). The highest average daily temperature occurs in July, reaching 22°C (71°F), while the lowest is in January at 6°C (43°F). As for nighttime temperatures, the minimum average temperature of 1°C (34°F) is recorded in February, and the maximum is in July, reaching 14°C (57°F).

According to historical data, Rotterdam experiences 143 rainy days per year, which accounts for 39 percent of all days in the year. On average, there are 12 rainy days each month. The wettest month is November, with 14 rainy days and 93 mm (3.6 inches) of precipitation, while the driest month is April, which typically has 9 rainy days and only 41 mm (1.6 inches) of precipitation.

The average annual water temperature in North Sea in Rotterdam is 12°C (54°F). In February, the water reaches its lowest point of the year at 4°C (39°F), while in August, it peaks at 22°C (72°F). In Rotterdam, the water temperature in the North Sea never consistently reaches a comfortable level for swimming in any month.

Geographical Location of Rotterdam

Frequently Asked Questions About Rotterdam and its Water Temperatures

What is the current sea temperature in Rotterdam?

The water temperature today in the North Sea in Rotterdam is 54°F (12.2°C).

In which months is the water temperature in Rotterdam comfortable for swimming?

It cannot be guaranteed that the water temperature in Rotterdam will be comfortable for swimming in any month of the year.

What is the water temperature in Rotterdam during the winter?

The water temperature in the North Sea in Rotterdam during the winter ranges from 4°C to 12°C (39°F to 54°F).

What is the water temperature in Rotterdam during the spring?

The water temperature in the North Sea in Rotterdam during the spring ranges from 4°C to 16°C (39°F to 61°F).

What is the water temperature in Rotterdam during the summer?

The water temperature in the North Sea in Rotterdam during the summer ranges from 12°C to 22°C (54°F to 72°F).

What is the water temperature in Rotterdam during the fall?

The water temperature in the North Sea in Rotterdam during the fall ranges from 10°C to 21°C (50°F to 70°F).

Is it possible to swim in the sea in Rotterdam at any time of the year?

The North Sea in Rotterdam is quite cool, and swimming is only possible in August, and September when the water temperature reaches 21°C (70°F).

Is Rotterdam a popular tourist destination for beach vacations?

Rotterdam has a moderate level of popularity for beach vacations; while it does receive some visitors, it is not among the top seaside destinations, as other locations may offer more favorable conditions.

What sea temperatures can I expect in Rotterdam in the next month?

In June, the water temperature in the North Sea in Rotterdam will range between 54°F (12°C) and 64°F (18°C)