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

62.0

°F

July 6, 09:40

Trend:

stable

Yesterday:

62.3°F

Tomorrow:

62.3°F

Sunrise:

04:58

Sunset:

20:23

Day Length:

15 h. 25 min.

Belfast in July

Minimum:

38.1°F

Average:

40.3°F

Maximum:

42.9°F

Sea water temperature in Belfast today

As of now, in Belfast, the water temperature is 62.0°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 1.9°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 rise a bit.

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 62.7°F on 2022, while the historical minimum was 57.1°F on 2020.

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 62.8°F, with minimum temperature starting at 62.1°F, while the maximum might reach 64.0°F.

Daily water temperature in Belfast

Date Current Year

actual* / forecast**

last year 10 years average
Jun 22 59.5°F 55.4°F 56.5°F
Jun 23 60.5°F 55.2°F 56.7°F
Jun 24 60.7°F 54.7°F 56.8°F
Jun 25 59.8°F 56.4°F 57.1°F
Jun 26 61.8°F 58.4°F 57.9°F
Jun 27 60.2°F 59.1°F 58.2°F
Jun 28 59.5°F 60.8°F 58.4°F
Jun 29 58.6°F 59.1°F 57.8°F
Jun 30 58.9°F 58.6°F 57.9°F
Jul 1 60.5°F 57.7°F 58.2°F
Jul 2 58.1°F 59.1°F 58.6°F
Jul 3 60.4°F 58.7°F 59.1°F
Jul 4 60.4°F 60.0°F 59.6°F
Jul 5 62.3°F 61.2°F 59.9°F
Jul 6 62.0°F 60.3°F 60.1°F
Jul 7 62.3°F 60.6°F 60.4°F
Jul 8 62.9°F 63.7°F 61.0°F
Jul 9 62.1°F 62.5°F 60.2°F
Jul 10 62.3°F 64.1°F 60.4°F
Jul 11 62.6°F 63.2°F 60.7°F
Jul 12 63.1°F 65.0°F 61.1°F
Jul 13 64.0°F 67.2°F 62.1°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.