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

62.5

°F

December 22, 18:23

Trend:

stable

Yesterday:

62.6°F

Tomorrow:

62.5°F

Sunrise:

05:46

Sunset:

21:11

Day Length:

15 h. 25 min.

Belfast in December

Minimum:

61.0°F

Average:

63.2°F

Maximum:

65.8°F

Sea water temperature in Belfast today

As of now, in Belfast, the water temperature is 62.5°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 1.5°F higher 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 stay about the same.

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 is also close to the historical maximum temperature for this date. The maximum temperature recorded for this date was 62.6°F on 2020, while the historical minimum was 58.7°F on 2019.

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. The forecast for the upcoming week suggests a gradual increase. The average temperature is expected to rise up to 63.3°F, with minimum temperature starting at 62.5°F, while the maximum might reach 63.8°F.

Daily water temperature in Belfast

Date Current Year

actual* / forecast**

last year 10 years average
Dec 8 61.9°F 59.7°F 59.9°F
Dec 9 60.2°F 60.3°F 59.8°F
Dec 10 58.8°F 60.7°F 59.9°F
Dec 11 59.9°F 60.0°F 60.1°F
Dec 12 60.0°F 59.9°F 60.2°F
Dec 13 60.4°F 59.9°F 60.3°F
Dec 14 61.8°F 58.9°F 60.4°F
Dec 15 61.7°F 59.6°F 60.5°F
Dec 16 61.8°F 59.8°F 60.8°F
Dec 17 61.9°F 60.0°F 60.9°F
Dec 18 62.6°F 60.2°F 61.0°F
Dec 19 62.3°F 60.1°F 61.0°F
Dec 20 62.0°F 60.2°F 61.1°F
Dec 21 62.6°F 61.9°F 61.1°F
Dec 22 62.5°F 62.2°F 61.0°F
Dec 23 62.5°F 62.1°F 61.0°F
Dec 24 62.8°F 62.2°F 61.3°F
Dec 25 63.1°F 62.5°F 61.6°F
Dec 26 63.4°F 63.5°F 61.9°F
Dec 27 63.8°F 63.6°F 62.3°F
Dec 28 63.8°F 63.2°F 62.3°F
Dec 29 63.7°F 63.1°F 62.2°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 12, 2015, dipping to 45.5°F. The average readings by season are 62.7°F in Winter, 58.9°F in Spring, 49.7°F in Summer, and 53.9°F in Autumn.