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 -0.05°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.

31.9

°F

March 15, 00:03

Trend:

decreasing

Yesterday:

32.0°F

Tomorrow:

31.9°F

Sunrise:

07:25

Sunset:

19:17

Day Length:

11 h. 52 min.

Belfast in March

Minimum:

32.0°F

Average:

32.8°F

Maximum:

35.1°F

Sea water temperature in Belfast today

As of now, in Belfast, the water temperature is 31.9°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 about the same as 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 stay about the same.

Recent sea temperature and forecast

Today's water temperature slightly varies from the average of the past two weeks. It is also close to the historical minimum temperature for this date. The maximum temperature recorded for this date was 32.2°F on 2024, while the historical minimum was 32.0°F on 2016.

latest data

last year

Observations from the last two weeks indicate that the water temperature was in proximity to the lowest values recorded on those days in the past. Over the next week, the forecast shows a steady trend, with temperatures staying close to the average of 32.0°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
Mar 1	32.0°F	32.0°F	32.0°F
Mar 2	32.0°F	32.0°F	32.0°F
Mar 3	32.0°F	32.0°F	32.0°F
Mar 4	32.0°F	32.0°F	32.0°F
Mar 5	32.0°F	32.0°F	32.0°F
Mar 6	32.0°F	32.0°F	32.0°F
Mar 7	32.0°F	32.0°F	32.0°F
Mar 8	32.0°F	32.0°F	32.0°F
Mar 9	32.0°F	32.0°F	32.0°F
Mar 10	32.0°F	32.0°F	32.0°F
Mar 11	32.0°F	32.0°F	32.0°F
Mar 12	32.0°F	32.0°F	32.1°F
Mar 13	32.0°F	32.0°F	32.2°F
Mar 14	32.0°F	32.8°F	32.1°F
Mar 15	31.9°F	32.2°F	32.0°F
Mar 16	31.9°F	32.0°F	32.0°F
Mar 17	31.9°F	32.0°F	32.0°F
Mar 18	31.9°F	32.0°F	32.0°F
Mar 19	32.1°F	33.8°F	32.2°F
Mar 20	32.0°F	33.2°F	32.1°F
Mar 21	32.0°F	33.1°F	32.1°F
Mar 22	32.0°F	33.4°F	32.1°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 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, 36.5°F in Spring, 61.3°F in Summer, and 55.0°F in Autumn.