What is the current water temperature in Istria?

Q: What is the current water temperature in Istria?

As of now, in Istria, the water temperature is 15.42°C. Swimming in water of this temperature is considered as extremely cold, and there's a substantial risk of hypothermia if exposed for more than a brief duration.

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Water temperature in Istria

Detailed information about the current water temperature in Istria. 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.

59.8

°F

October 20, 19:43

Trend:

decreasing

Yesterday:

61.1°F

Tomorrow:

59.5°F

Sunrise:

07:26

Sunset:

18:13

Day Length:

10 h. 47 min.

Istria in October

Minimum:

39.0°F

Average:

42.7°F

Maximum:

46.3°F

Sea water temperature in Istria today

As of now, in Istria, the water temperature is 59.8°F. Swimming in water of this temperature is considered as extremely cold, and there's a substantial risk of hypothermia if exposed for more than a brief duration. Today's reading is 0.3°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 fall 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 also aligns closely with the historical average temperature for this date, indicating a typical climate pattern. The maximum temperature recorded for this date was 62.1°F on 2020, while the historical minimum was 55.8°F on 2025.

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 histoorical minimum and others when it was close to the historical maximum. The forecast for the upcoming week shows a gradual cooling trend. The average temperature is expected to be 59.4°F, the minimum temperature may reach 58.8°F, and the maximum might stay at 59.6°F.

Daily water temperature in Istria

Date	Current Year actual* / forecast**	last year	10 years average
Oct 6	59.2°F	62.7°F	64.6°F
Oct 7	60.0°F	62.7°F	64.4°F
Oct 8	61.4°F	62.9°F	64.7°F
Oct 9	62.3°F	63.0°F	64.5°F
Oct 10	63.5°F	63.0°F	64.3°F
Oct 11	63.8°F	62.0°F	63.9°F
Oct 12	66.1°F	59.7°F	63.6°F
Oct 13	65.6°F	58.8°F	62.8°F
Oct 14	65.2°F	58.7°F	62.2°F
Oct 15	63.5°F	58.6°F	61.7°F
Oct 16	62.3°F	58.6°F	61.4°F
Oct 17	62.2°F	57.1°F	60.7°F
Oct 18	61.1°F	56.7°F	60.2°F
Oct 19	61.1°F	56.8°F	59.7°F
Oct 20	59.8°F	55.8°F	59.4°F
Oct 21	59.5°F	54.8°F	59.2°F
Oct 22	59.3°F	55.5°F	59.0°F
Oct 23	59.6°F	56.2°F	59.3°F
Oct 24	59.6°F	57.8°F	59.3°F
Oct 25	59.5°F	56.4°F	59.1°F
Oct 26	59.2°F	55.3°F	58.9°F
Oct 27	58.8°F	55.9°F	58.5°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 Istria by month

In Istria, the months July through August offer comfortable swimming conditions, which amounts to 84 swimming days.

The warmest water in Istria was recorded on July 18, 2024, reaching a 84.0°F. While the coldest temperature occurred on February 14, 2026, dipping to 34.2°F. The average readings by season are 43.3°F in Winter, 53.6°F in Spring, 76.1°F in Summer, and 62.3°F in Autumn.

Popular neighboring cities and resorts

City	Water temperature*	Distance**
Constanţa	62.1°F	27mi
Eforie Nord	63.3°F	35mi
Mangalia	62.1°F	52mi

* current water temperature in this city

** straight line distance from Istria