What is the current water temperature in Koper?

Q: What is the current water temperature in Koper?

As of now, in Koper, the water temperature is 18.25°C. Swimming in water of this temperature is generally concidered to be cool, and most people won't really enjoy it.

Slovenia > Koper

Water temperature in Koper

Detailed information about the current water temperature in Koper. 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.

64.9

°F

May 20, 19:28

Trend:

increasing

Yesterday:

64.3°F

Tomorrow:

65.0°F

Sunrise:

05:28

Sunset:

20:35

Day Length:

15 h. 7 min.

Koper in May

Minimum:

50.5°F

Average:

52.2°F

Maximum:

54.3°F

Sea water temperature in Koper today

As of now, in Koper, the water temperature is 64.9°F. Swimming in water of this temperature is generally concidered to be cool, and most people won't really enjoy it. Today's reading is 0.4°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 rise a bit.

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 also aligns closely with the historical average temperature for this date, indicating a typical climate pattern. The maximum temperature recorded for this date was 68.1°F on 2018, while the historical minimum was 58.5°F on 2023.

latest data

last year

The water temperature over the last two weeks displayed soome variability. While the two week average stayed close to the historical average, there were some days when the temperature was close to the minimum recorded over the past years. The forecast for the upcoming week suggests a gradual increase. The average temperature is expected to rise up to 66.5°F, with minimum temperature starting at 65.0°F, while the maximum might reach 67.8°F.

Daily water temperature in Koper

Date	Current Year actual* / forecast**	last year	10 years average
May 6	60.2°F	58.5°F	60.9°F
May 7	61.7°F	59.4°F	61.6°F
May 8	61.9°F	61.7°F	61.6°F
May 9	62.0°F	61.1°F	61.7°F
May 10	59.3°F	60.6°F	61.7°F
May 11	60.3°F	61.0°F	62.7°F
May 12	60.6°F	61.3°F	63.1°F
May 13	61.1°F	61.8°F	63.5°F
May 14	61.4°F	62.2°F	63.8°F
May 15	63.6°F	62.5°F	64.0°F
May 16	63.8°F	61.8°F	64.2°F
May 17	62.4°F	61.6°F	64.1°F
May 18	63.0°F	59.6°F	64.2°F
May 19	64.3°F	59.0°F	64.5°F
May 20	64.9°F	58.5°F	64.5°F
May 21	65.0°F	58.3°F	64.7°F
May 22	65.7°F	60.1°F	65.3°F
May 23	66.2°F	61.9°F	65.8°F
May 24	66.6°F	62.8°F	66.2°F
May 25	66.8°F	63.3°F	66.4°F
May 26	67.3°F	64.4°F	66.9°F
May 27	67.8°F	66.0°F	67.4°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 Koper by month

In Koper, the months July through September offer comfortable swimming conditions, which amounts to 94 swimming days.

The warmest water in Koper was recorded on July 23, 2015, reaching a 85.2°F. While the coldest temperature occurred on March 10, 2022, dipping to 47.0°F. The average readings by season are 51.9°F in Winter, 56.8°F in Spring, 76.5°F in Summer, and 67.5°F in Autumn.

Popular neighboring cities and resorts

City	Water temperature*	Distance**
Trieste	65.2°F	7mi
Poreč	66.1°F	23mi
Lignano Sabbiadoro	66.0°F	31mi
Lovran	65.2°F	32mi
Rovinj	64.8°F	32mi
Rijeka	64.6°F	38mi
Rabac	64.9°F	38mi
Caorle	65.7°F	41mi

* current water temperature in this city

** straight line distance from Koper