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

63.5

°F

January 23, 13:53

Trend:

increasing

Yesterday:

63.3°F

Tomorrow:

63.6°F

Sunrise:

06:17

Sunset:

21:05

Day Length:

14 h. 48 min.

Belfast in January

Minimum:

60.3°F

Average:

62.3°F

Maximum:

64.1°F

Sea water temperature in Belfast today

As of now, in Belfast, the water temperature is 63.5°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 0.7°F lower 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 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 67.1°F on 2018, while the historical minimum was 60.5°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 maximum recorded over the past years. Over the next week, the forecast shows a steady trend, with temperatures staying close to the average of 63.7°F. Both minimum and maximum temperatures expected to be close to the average, offering a week of stable water conditions.

Daily water temperature in Belfast

Date Current Year

actual* / forecast**

last year 10 years average
Jan 9 65.2°F 60.7°F 63.2°F
Jan 10 65.1°F 60.9°F 63.3°F
Jan 11 65.0°F 61.8°F 63.6°F
Jan 12 65.0°F 61.9°F 63.4°F
Jan 13 63.8°F 61.7°F 63.2°F
Jan 14 63.8°F 61.2°F 63.2°F
Jan 15 63.7°F 61.1°F 63.2°F
Jan 16 63.3°F 62.0°F 63.2°F
Jan 17 63.6°F 61.2°F 63.1°F
Jan 18 63.4°F 60.9°F 63.1°F
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 64.0°F
Jan 23 63.5°F 63.8°F 64.2°F
Jan 24 63.6°F 63.7°F 64.3°F
Jan 25 63.7°F 64.5°F 64.3°F
Jan 26 63.5°F 64.3°F 64.2°F
Jan 27 63.7°F 64.5°F 64.4°F
Jan 28 63.6°F 63.9°F 64.3°F
Jan 29 63.9°F 64.5°F 64.5°F
Jan 30 64.0°F 64.0°F 64.7°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.