What is the current water temperature in Belfast?

Q: What is the current water temperature in Belfast?

As of now, in Belfast, the water temperature is 1.23°C. Swimming in water of this temperature is considered as extremely cold, and there's a substantial risk of hypothermia if exposed for more than a brief duration.

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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.

34.2

°F

December 10, 20:24

Trend:

decreasing

Yesterday:

35.0°F

Tomorrow:

33.8°F

Sunrise:

07:43

Sunset:

16:26

Day Length:

8 h. 43 min.

Belfast in December

Minimum:

32.0°F

Average:

32.3°F

Maximum:

34.0°F

Sea water temperature in Belfast today

As of now, in Belfast, the water temperature is 34.2°F. Swimming in water of this temperature is considered as extremely cold, and there's a substantial risk of hypothermia if exposed for more than a brief duration. Today's reading is 2.6°F lower 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 fall a bit.

Recent sea temperature and forecast

Today's water temperature is considerably lower than the average registered over the last two weeks, indicating a slight cooling trend. It is also close to the historical minimum temperature for this date. The maximum temperature recorded for this date was 41.3°F on 2020, while the historical minimum was 33.3°F on 2016.

latest data

last year

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 shows a gradual cooling trend. The average temperature is expected to be 33.3°F, the minimum temperature may reach 32.6°F, and the maximum might stay at 33.8°F.

Daily water temperature in Belfast

Date	Current Year actual* / forecast**	last year	10 years average
Nov 26	40.4°F	39.6°F	39.6°F
Nov 27	39.6°F	38.1°F	38.8°F
Nov 28	41.2°F	37.7°F	38.7°F
Nov 29	41.7°F	38.6°F	38.6°F
Nov 30	41.4°F	41.7°F	38.9°F
Dec 1	41.4°F	41.5°F	38.9°F
Dec 2	39.9°F	41.4°F	38.6°F
Dec 3	40.0°F	41.0°F	38.4°F
Dec 4	36.4°F	38.7°F	36.8°F
Dec 5	36.8°F	38.9°F	36.8°F
Dec 6	37.1°F	39.7°F	37.1°F
Dec 7	38.8°F	40.7°F	38.1°F
Dec 8	36.8°F	39.9°F	37.6°F
Dec 9	35.0°F	39.6°F	37.1°F
Dec 10	34.2°F	39.0°F	36.8°F
Dec 11	33.8°F	38.4°F	36.4°F
Dec 12	33.4°F	38.2°F	36.0°F
Dec 13	33.5°F	37.1°F	36.1°F
Dec 14	33.4°F	36.6°F	36.0°F
Dec 15	33.2°F	35.5°F	35.8°F
Dec 16	33.3°F	35.7°F	35.9°F
Dec 17	32.6°F	35.4°F	35.2°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 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 55.1°F in Autumn.