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

66.0

°F

July 14, 09:52

Trend:

increasing

Yesterday:

65.0°F

Tomorrow:

66.9°F

Sunrise:

05:34

Sunset:

21:00

Day Length:

15 h. 26 min.

Belfast in July

Minimum:

32.0°F

Average:

32.3°F

Maximum:

33.7°F

Sea water temperature in Belfast today

As of now, in Belfast, the water temperature is 66.0°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 4.3°F higher than 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 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 64.4°F on 2020, while the historical minimum was 56.4°F on 2016.

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 68.8°F, with minimum temperature starting at 66.9°F, while the maximum might reach 70.2°F.

Daily water temperature in Belfast

Date Current Year

actual* / forecast**

last year 10 years average
Jun 30 55.6°F 57.4°F 57.3°F
Jul 1 58.2°F 57.2°F 58.0°F
Jul 2 58.1°F 57.5°F 58.6°F
Jul 3 59.3°F 57.9°F 59.9°F
Jul 4 58.4°F 58.1°F 59.9°F
Jul 5 57.6°F 60.0°F 60.0°F
Jul 6 61.1°F 62.0°F 60.3°F
Jul 7 62.5°F 62.2°F 60.9°F
Jul 8 62.6°F 64.0°F 61.4°F
Jul 9 61.7°F 65.0°F 61.9°F
Jul 10 63.2°F 64.6°F 62.1°F
Jul 11 63.4°F 64.8°F 62.5°F
Jul 12 65.4°F 64.5°F 62.8°F
Jul 13 65.0°F 62.9°F 61.5°F
Jul 14 66.0°F 62.9°F 61.8°F
Jul 15 66.9°F 63.8°F 62.6°F
Jul 16 68.0°F 64.5°F 63.7°F
Jul 17 67.9°F 65.8°F 63.6°F
Jul 18 69.3°F 70.0°F 65.0°F
Jul 19 69.6°F 69.0°F 65.4°F
Jul 20 69.9°F 71.2°F 65.6°F
Jul 21 70.2°F 68.2°F 65.9°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, 61.3°F in Summer, and 55.0°F in Autumn.