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

61.5

°F

March 7, 06:58

Trend:

decreasing

Yesterday:

61.6°F

Tomorrow:

61.3°F

Sunrise:

07:15

Sunset:

20:06

Day Length:

12 h. 51 min.

Belfast in March

Minimum:

61.0°F

Average:

62.6°F

Maximum:

64.5°F

Sea water temperature in Belfast today

As of now, in Belfast, the water temperature is 61.5°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 2.0°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 considerably lower than the average registered over the last two weeks, indicating a slight cooling trend. It is also close to the historical minimum temperature for this date. The maximum temperature recorded for this date was 64.7°F on 2019, while the historical minimum was 61.3°F on 2020.

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 60.9°F, the minimum temperature may reach 60.6°F, and the maximum might stay at 61.3°F.

Daily water temperature in Belfast

Date Current Year

actual* / forecast**

last year 10 years average
Feb 21 64.1°F 65.7°F 64.7°F
Feb 22 63.4°F 65.0°F 64.5°F
Feb 23 63.7°F 64.6°F 64.5°F
Feb 24 63.4°F 64.0°F 64.3°F
Feb 25 63.7°F 63.2°F 64.0°F
Feb 26 64.3°F 63.9°F 63.8°F
Feb 27 63.6°F 64.1°F 63.6°F
Feb 28 62.9°F 64.2°F 63.6°F
Mar 1 62.7°F 63.8°F 63.3°F
Mar 2 62.3°F 63.4°F 63.4°F
Mar 3 61.9°F 64.8°F 63.6°F
Mar 4 61.1°F 64.7°F 63.5°F
Mar 5 60.7°F 64.5°F 63.6°F
Mar 6 61.6°F 64.1°F 63.7°F
Mar 7 61.5°F 63.2°F 63.5°F
Mar 8 61.3°F 62.9°F 63.3°F
Mar 9 61.0°F 63.2°F 63.0°F
Mar 10 60.9°F 63.3°F 63.0°F
Mar 11 61.1°F 63.6°F 63.1°F
Mar 12 60.9°F 63.8°F 62.9°F
Mar 13 60.9°F 63.4°F 63.0°F
Mar 14 60.6°F 62.7°F 62.6°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.