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

68.5

°F

August 8, 16:25

Trend:

stable

Yesterday:

68.1°F

Tomorrow:

68.4°F

Sunrise:

06:02

Sunset:

20:32

Day Length:

14 h. 30 min.

Belfast in August

Minimum:

32.0°F

Average:

32.1°F

Maximum:

33.2°F

Sea water temperature in Belfast today

As of now, in Belfast, the water temperature is 68.5°F. Swimming in water of this temperature is seen as relatively warm and enjoyable for some individuals, although many might find it slightly too cool. Today's reading is 0.2°F higher 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 notably higher than the average recorded over the past two weeks, indicating a significant warming trend. It also aligns closely with the historical average temperature for this date, indicating a typical climate pattern. The maximum temperature recorded for this date was 72.7°F on 2018, while the historical minimum was 64.1°F on 2021.

Over the past two weeks, the water temperature has closely aligned with historical averages for those days. Over the next week, the forecast shows a steady trend, with temperatures staying close to the average of 68.7°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
Jul 25 66.2°F 64.2°F 66.5°F
Jul 26 67.2°F 65.0°F 67.0°F
Jul 27 66.6°F 66.7°F 67.4°F
Jul 28 65.5°F 68.7°F 67.7°F
Jul 29 66.6°F 67.6°F 67.8°F
Jul 30 67.2°F 66.6°F 68.3°F
Jul 31 67.1°F 68.6°F 68.3°F
Aug 1 67.3°F 67.6°F 68.7°F
Aug 2 67.5°F 67.0°F 68.6°F
Aug 3 67.3°F 68.6°F 68.5°F
Aug 4 69.6°F 69.4°F 68.8°F
Aug 5 69.1°F 69.7°F 68.7°F
Aug 6 68.4°F 69.8°F 68.5°F
Aug 7 68.1°F 69.7°F 68.6°F
Aug 8 68.5°F 69.1°F 68.2°F
Aug 9 68.4°F 67.6°F 68.2°F
Aug 10 68.4°F 67.5°F 68.1°F
Aug 11 68.7°F 67.8°F 68.5°F
Aug 12 69.1°F 68.2°F 68.8°F
Aug 13 68.7°F 67.9°F 68.5°F
Aug 14 68.6°F 67.7°F 68.4°F
Aug 15 69.1°F 68.3°F 68.9°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 August 12, 2020, reaching a 73.6°F. While the coldest temperature occurred on January 1, 2018, dipping to 32.0°F. The average readings by season are 33.2°F in Winter, 36.6°F in Spring, 61.4°F in Summer, and 55.0°F in Autumn.