All data are in degrees Fahrenheit

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Water temperature in San Sebastian

Detailed information about the current water temperature in San Sebastian. 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.
Sea temperature in San Sebastian now

82.6

°F

January 29, 19:40

Trend:

increasing

Yesterday:

81.9°F

Tomorrow:

82.8°F

Sunrise:

06:05

Sunset:

17:41

Day Length:

11 h. 36 min.

San Sebastian in February

Minimum:

81.6°F

Average:

82.5°F

Maximum:

84.2°F

Sea water temperature in San Sebastian today

As of now, in San Sebastian, the water temperature is 82.6°F. Swimming in water of this temperature is considered highly warm and would be enjoyable for everyone. At this temperature, you can comfortably engage in water-based activities for extended periods without experiencing discomfort. Today's reading is 0.7°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 falls within the range of the average temperature recorded for this date, suggesting a consistent weather trend. The maximum temperature recorded for this date was 83.8°F on 2025, while the historical minimum was 80.4°F on 2019.

Over the last two weeks, the water temperature has stayed slightly lower than historical averages for those days. Over the next week, the forecast shows a steady trend, with temperatures staying close to the average of 82.7°F. Both minimum and maximum temperatures expected to be close to the average, offering a week of stable water conditions.

Daily water temperature in San Sebastian

Date Current Year

actual* / forecast**

last year 10 years average
Jan 15 81.7°F 82.7°F 82.0°F
Jan 16 81.6°F 82.7°F 81.9°F
Jan 17 81.5°F 83.0°F 81.9°F
Jan 18 81.4°F 83.0°F 81.8°F
Jan 19 81.6°F 83.2°F 81.9°F
Jan 20 81.8°F 83.3°F 81.9°F
Jan 21 82.2°F 83.0°F 81.8°F
Jan 22 82.7°F 82.4°F 81.8°F
Jan 23 81.7°F 82.2°F 81.7°F
Jan 24 81.2°F 82.0°F 81.7°F
Jan 25 81.0°F 83.2°F 81.8°F
Jan 26 80.9°F 84.0°F 81.9°F
Jan 27 81.2°F 84.5°F 81.9°F
Jan 28 81.9°F 84.1°F 81.9°F
Jan 29 82.6°F 83.8°F 81.9°F
Jan 30 82.8°F 83.6°F 82.1°F
Jan 31 82.9°F 83.4°F 82.2°F
Feb 1 82.7°F 82.9°F 82.0°F
Feb 2 82.6°F 82.0°F 81.9°F
Feb 3 82.6°F 81.8°F 81.9°F
Feb 4 82.7°F 82.9°F 82.0°F
Feb 5 82.6°F 82.4°F 81.9°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 San Sebastian by month

In San Sebastian, the water temperature is comfortable for swimming all year round.
The warmest water in San Sebastian was recorded on June 3, 2024, reaching a 89.7°F. While the coldest temperature occurred on February 16, 2017, dipping to 79.8°F. The average readings by season are 82.5°F in Winter, 84.9°F in Spring, 86.6°F in Summer, and 85.7°F in Autumn.

Popular neighboring cities and resorts

City Water temperature* Distance**
Tacloban 82.3°F 32mi
Limon 81.0°F 42mi
Almeria 80.6°F 43mi
San Jose 82.3°F 50mi

* current water temperature in this city

** straight line distance from San Sebastian