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 20.54°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.

69.0

°F

July 12, 23:10

Trend:

increasing

Yesterday:

68.4°F

Tomorrow:

69.0°F

Sunrise:

05:35

Sunset:

21:59

Day Length:

16 h. 24 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 69.0°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 4.2°F higher than the average recorded on this particular day in recent years. Since yesterday, there was a slight increase in temperature. This indicates a warming trend over the past day. According to the forecast, we expect the temperature to stay about the same.

Recent sea temperature and forecast

Today's water temperature is notably higher than the average recorded over the past two weeks, indicating a significant warming trend. It is also close to the historical maximum temperature for this date. The maximum temperature recorded for this date was 67.1°F on 2025, while the historical minimum was 63.7°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. The forecast for the upcoming week suggests a gradual increase. The average temperature is expected to rise up to 69.4°F, with minimum temperature starting at 69.0°F, while the maximum might reach 70.3°F.

Daily water temperature in Leiden

Date	Current Year actual* / forecast**	last year	10 years average
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	64.5°F
Jul 6	66.3°F	67.0°F	64.7°F
Jul 7	66.7°F	66.7°F	64.6°F
Jul 8	66.8°F	66.3°F	64.6°F
Jul 9	67.3°F	65.7°F	64.9°F
Jul 10	67.9°F	65.5°F	64.9°F
Jul 11	68.4°F	66.1°F	65.1°F
Jul 12	69.0°F	67.1°F	64.8°F
Jul 13	69.0°F	66.5°F	64.9°F
Jul 14	69.0°F	66.5°F	64.9°F
Jul 15	69.1°F	66.9°F	64.9°F
Jul 16	69.2°F	66.9°F	65.0°F
Jul 17	69.2°F	65.6°F	65.1°F
Jul 18	69.8°F	66.3°F	65.6°F
Jul 19	70.3°F	67.0°F	66.1°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	68.9°F	10mi
The Hague	69.2°F	10mi
Amsterdam	72.1°F	22mi

* current water temperature in this city

** straight line distance from Leiden