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

63.9

°F

July 26, 15:12

Trend:

stable

Yesterday:

60.5°F

Tomorrow:

63.9°F

Sunrise:

05:16

Sunset:

20:08

Day Length:

14 h. 52 min.

Belfast in August

Minimum:

38.8°F

Average:

40.2°F

Maximum:

42.7°F

Sea water temperature in Belfast today

As of now, in Belfast, the water temperature is 63.9°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. Since yesterday, there was a noticeable 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 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 68.9°F on 2023, while the historical minimum was 59.5°F on 2015.

Over the last two weeks, the water temperature has stayed slightly lower than historical averages for those days. The forecast for the upcoming week suggests a gradual increase. The average temperature is expected to rise up to 64.3°F, with minimum temperature starting at 63.9°F, while the maximum might reach 64.8°F.

Daily water temperature in Belfast

Date Current Year

actual* / forecast**

last year 10 years average
Jul 12 60.2°F 65.0°F 61.1°F
Jul 13 59.7°F 67.2°F 61.9°F
Jul 14 61.1°F 67.0°F 62.3°F
Jul 15 59.6°F 70.0°F 62.4°F
Jul 16 60.9°F 70.2°F 62.3°F
Jul 17 61.8°F 67.9°F 62.3°F
Jul 18 61.3°F 67.7°F 62.3°F
Jul 19 62.3°F 66.5°F 61.9°F
Jul 20 60.4°F 69.8°F 62.6°F
Jul 21 59.6°F 69.2°F 62.9°F
Jul 22 62.1°F 68.4°F 63.3°F
Jul 23 60.9°F 67.1°F 62.7°F
Jul 24 60.8°F 65.6°F 63.1°F
Jul 25 60.5°F 63.7°F 63.6°F
Jul 26 63.9°F 63.3°F 63.9°F
Jul 27 63.9°F 62.5°F 63.8°F
Jul 28 64.1°F 63.5°F 64.1°F
Jul 29 64.3°F 62.3°F 64.3°F
Jul 30 64.8°F 61.3°F 64.7°F
Jul 31 64.4°F 60.8°F 64.3°F
Aug 1 64.5°F 63.5°F 64.4°F
Aug 2 64.6°F 66.5°F 64.5°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 July 30, 2023, reaching a 71.2°F. While the coldest temperature occurred on March 2, 2015, dipping to 32.0°F. The average readings by season are 39.8°F in Winter, 41.6°F in Spring, 60.6°F in Summer, and 55.7°F in Autumn.