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 12.16°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.

53.9

°F

April 15, 11:08

Trend:

increasing

Yesterday:

51.8°F

Tomorrow:

54.3°F

Sunrise:

06:22

Sunset:

19:49

Day Length:

13 h. 27 min.

Istria in April

Minimum:

39.5°F

Average:

43.3°F

Maximum:

46.4°F

Sea water temperature in Istria today

As of now, in Istria, the water temperature is 53.9°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 0.9°F higher than the average recorded on this particular day in recent years. Since yesterday, there was a noticeable 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 63.6°F on 2024, while the historical minimum was 49.0°F on 2025.

latest data

last year

Over the past two weeks, the water temperature has closely aligned with historical averages for those days. The forecast for the upcoming week suggests a gradual increase. The average temperature is expected to rise up to 54.8°F, with minimum temperature starting at 54.3°F, while the maximum might reach 55.1°F.

Daily water temperature in Istria

Date	Current Year actual* / forecast**	last year	10 years average
Apr 1	46.8°F	46.6°F	47.3°F
Apr 2	47.8°F	46.7°F	47.9°F
Apr 3	48.3°F	47.3°F	48.3°F
Apr 4	51.3°F	47.1°F	48.8°F
Apr 5	52.8°F	47.4°F	49.4°F
Apr 6	53.5°F	49.4°F	49.9°F
Apr 7	53.6°F	49.5°F	50.4°F
Apr 8	55.0°F	48.7°F	50.8°F
Apr 9	51.9°F	46.1°F	50.6°F
Apr 10	52.8°F	45.6°F	51.1°F
Apr 11	51.1°F	43.2°F	51.0°F
Apr 12	51.8°F	43.3°F	51.4°F
Apr 13	51.3°F	44.1°F	51.7°F
Apr 14	51.8°F	46.3°F	52.6°F
Apr 15	53.9°F	49.0°F	53.0°F
Apr 16	54.3°F	49.4°F	53.3°F
Apr 17	54.8°F	51.0°F	53.8°F
Apr 18	55.0°F	52.7°F	54.1°F
Apr 19	54.9°F	53.0°F	53.9°F
Apr 20	55.1°F	54.2°F	54.2°F
Apr 21	55.1°F	54.6°F	54.1°F
Apr 22	54.8°F	55.5°F	53.8°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 Istria by month

In Istria, the months July through August offer comfortable swimming conditions, which amounts to 83 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	49.2°F	27mi
Eforie Nord	49.6°F	35mi
Mangalia	50.6°F	52mi

* current water temperature in this city

** straight line distance from Istria