All data are in degrees Fahrenheit

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Water temperature in Belfast

Detailed information about the current water temperature in Belfast. 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 Belfast now

63.8

°F

February 2, 16:42

Trend:

decreasing

Yesterday:

63.9°F

Tomorrow:

63.6°F

Sunrise:

06:31

Sunset:

20:55

Day Length:

14 h. 24 min.

Belfast in February

Minimum:

60.4°F

Average:

62.5°F

Maximum:

64.6°F

Sea water temperature in Belfast today

As of now, in Belfast, the water temperature is 63.8°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 0.7°F lower 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 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 68.3°F on 2018, while the historical minimum was 61.3°F on 2017.

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 shows a gradual cooling trend. The average temperature is expected to be 63.3°F, the minimum temperature may reach 63.0°F, and the maximum might stay at 63.6°F.

Daily water temperature in Belfast

Date Current Year

actual* / forecast**

last year 10 years average
Jan 19 63.9°F 61.2°F 63.4°F
Jan 20 63.2°F 61.2°F 63.5°F
Jan 21 63.7°F 62.2°F 63.5°F
Jan 22 63.3°F 63.3°F 63.9°F
Jan 23 61.6°F 63.8°F 64.0°F
Jan 24 62.3°F 63.7°F 64.1°F
Jan 25 62.3°F 64.5°F 64.1°F
Jan 26 62.2°F 64.3°F 64.0°F
Jan 27 62.2°F 64.5°F 64.2°F
Jan 28 61.1°F 63.9°F 64.0°F
Jan 29 62.0°F 64.5°F 64.3°F
Jan 30 62.1°F 64.0°F 64.4°F
Jan 31 63.2°F 63.3°F 64.7°F
Feb 1 63.9°F 63.9°F 64.7°F
Feb 2 63.8°F 63.9°F 64.5°F
Feb 3 63.6°F 63.7°F 64.3°F
Feb 4 63.2°F 64.7°F 64.0°F
Feb 5 63.5°F 65.2°F 64.2°F
Feb 6 63.2°F 65.5°F 64.0°F
Feb 7 63.3°F 65.4°F 64.0°F
Feb 8 63.0°F 65.1°F 63.8°F
Feb 9 63.0°F 64.7°F 63.8°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 Belfast by month

In an average year, Belfast offers no days when the water temperature is warm enough to swim comfortably.
The warmest water in Belfast was recorded on January 31, 2018, reaching a 69.7°F. While the coldest temperature occurred on August 14, 2022, dipping to 46.6°F. The average readings by season are 62.9°F in Winter, 59.0°F in Spring, 49.9°F in Summer, and 54.1°F in Autumn.