What is the current water temperature in Leiden?

Q: What is the current water temperature in Leiden?

As of now, in Leiden, the water temperature is 19.07°C. Swimming in water of this temperature is seen as relatively warm and enjoyable for some individuals, although many might find it slightly too cool.

Netherlands > Leiden

Water temperature in Leiden

Detailed information about the current water temperature in Leiden. The trend over the last two weeks, daily averages, and precise forecast of the water temperature changes. Gain a deeper understanding of seasonal dynamics with monthly statistical analyses covering recent years.

66.3

°F

July 5, 23:00

Trend:

stable

Yesterday:

66.8°F

Tomorrow:

66.5°F

Sunrise:

05:28

Sunset:

22:04

Day Length:

16 h. 36 min.

Leiden in July

Minimum:

40.9°F

Average:

44.3°F

Maximum:

45.9°F

Sea water temperature in Leiden today

As of now, in Leiden, the water temperature is 66.3°F. Swimming in water of this temperature is seen as relatively warm and enjoyable for some individuals, although many might find it slightly too cool. Today's reading is 2.0°F higher than the average recorded on this particular day in recent years. The sea temperature remains approximately unchanged from yesterday. According to the forecast, we expect the temperature to rise a bit.

Recent sea temperature and forecast

Today's water temperature is considerably lower than the average registered over the last two weeks, indicating a slight cooling trend. It is also close to the historical maximum temperature for this date. The maximum temperature recorded for this date was 67.4°F on 2025, while the historical minimum was 62.3°F on 2016.

latest data

last year

Observations from the last two weeks indicate that the water temperature was in proximity to the highest values recorded on those days in the past. Over the next week, the forecast shows a steady trend, with temperatures staying close to the average of 66.5°F. Both minimum and maximum temperatures expected to be close to the average, offering a week of stable water conditions.

Daily water temperature in Leiden

Date	Current Year actual* / forecast**	last year	10 years average
Jun 21	63.8°F	63.1°F	62.5°F
Jun 22	65.1°F	64.6°F	62.6°F
Jun 23	65.8°F	64.6°F	62.9°F
Jun 24	67.0°F	64.9°F	63.3°F
Jun 25	67.4°F	64.5°F	63.7°F
Jun 26	68.3°F	64.5°F	64.1°F
Jun 27	69.1°F	64.6°F	64.2°F
Jun 28	68.9°F	65.7°F	64.4°F
Jun 29	69.1°F	66.4°F	64.5°F
Jun 30	68.2°F	66.6°F	64.5°F
Jul 1	67.7°F	66.8°F	64.5°F
Jul 2	68.2°F	66.8°F	64.4°F
Jul 3	67.4°F	65.8°F	64.5°F
Jul 4	66.8°F	65.7°F	64.3°F
Jul 5	66.3°F	67.4°F	64.4°F
Jul 6	66.5°F	67.0°F	64.5°F
Jul 7	66.3°F	66.7°F	64.3°F
Jul 8	66.3°F	66.3°F	64.4°F
Jul 9	66.6°F	65.7°F	64.6°F
Jul 10	66.5°F	65.5°F	64.5°F
Jul 11	66.8°F	66.1°F	64.8°F
Jul 12	66.8°F	67.1°F	64.8°F

* actual - actual temperature values

** forecast - projected values for the next week

Real-time coastal temperatures could deviate by several degrees from the provided readings. These deviations often become evident following intense rainfall or strong winds.

Our forecasting methodology leverages a mathematical model, that uses current water and weather conditions, historical records, wind intensity and direction.

Sea water temperature in Leiden by month

In an average year, Leiden offers no days when the water temperature is warm enough to swim comfortably.

The warmest water in Leiden was recorded on September 11, 2023, reaching a 71.3°F. While the coldest temperature occurred on March 4, 2018, dipping to 37.4°F. The average readings by season are 44.3°F in Winter, 49.0°F in Spring, 64.8°F in Summer, and 59.3°F in Autumn.

Popular neighboring cities and resorts

City	Water temperature*	Distance**
Scheveningen	66.5°F	10mi
The Hague	66.9°F	10mi
Amsterdam	71.5°F	22mi

* current water temperature in this city

** straight line distance from Leiden