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

63.6

°F

February 27, 23:45

Trend:

decreasing

Yesterday:

64.3°F

Tomorrow:

63.6°F

Sunrise:

07:05

Sunset:

20:19

Day Length:

13 h. 14 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 63.6°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 about the same as 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 stay about the same.

Recent sea temperature and forecast

Today's water temperature is slightly lower than the average registered over the last two weeks, indicating a slight cooling 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 65.2°F on 2016, while the historical minimum was 62.2°F on 2020.

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 63.3°F. Both minimum and maximum temperatures expected to be close to the average, offering a week of stable water conditions.

Daily water temperature in Belfast

Date Current Year

actual* / forecast**

last year 10 years average
Feb 13 65.8°F 65.3°F 64.5°F
Feb 14 64.7°F 65.5°F 64.4°F
Feb 15 65.3°F 65.4°F 64.5°F
Feb 16 64.5°F 65.3°F 64.6°F
Feb 17 63.6°F 66.7°F 64.6°F
Feb 18 63.7°F 65.9°F 64.6°F
Feb 19 64.0°F 66.2°F 64.9°F
Feb 20 64.7°F 66.4°F 65.0°F
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 63.7°F
Feb 28 63.6°F 64.2°F 63.6°F
Mar 1 63.0°F 63.8°F 63.4°F
Mar 2 63.1°F 63.4°F 63.5°F
Mar 3 63.4°F 64.8°F 63.8°F
Mar 4 63.3°F 64.7°F 63.7°F
Mar 5 63.5°F 64.5°F 63.9°F
Mar 6 63.3°F 64.1°F 63.7°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.