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 15.93°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.

60.7

°F

September 14, 04:55

Trend:

stable

Yesterday:

60.7°F

Tomorrow:

60.9°F

Sunrise:

06:48

Sunset:

19:25

Day Length:

12 h. 37 min.

Belfast in September

Minimum:

32.0°F

Average:

32.2°F

Maximum:

32.9°F

Sea water temperature in Belfast today

As of now, in Belfast, the water temperature is 60.7°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 3.3°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 rise 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 65.7°F on 2022, while the historical minimum was 61.1°F on 2019.

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 histoorical minimum and others when it was close to the historical maximum. The forecast for the upcoming week shows a gradual cooling trend. The average temperature is expected to be 60.3°F, the minimum temperature may reach 59.7°F, and the maximum might stay at 60.9°F.

Daily water temperature in Belfast

Date	Current Year actual* / forecast**	last year	10 years average
Aug 31	68.7°F	68.3°F	67.0°F
Sep 1	69.0°F	68.0°F	66.7°F
Sep 2	68.5°F	67.3°F	66.7°F
Sep 3	66.8°F	66.8°F	66.0°F
Sep 4	66.8°F	67.6°F	66.0°F
Sep 5	66.4°F	69.3°F	66.1°F
Sep 6	66.0°F	70.2°F	66.0°F
Sep 7	65.3°F	69.4°F	65.8°F
Sep 8	63.0°F	69.0°F	65.4°F
Sep 9	62.2°F	68.3°F	65.3°F
Sep 10	61.2°F	68.2°F	65.2°F
Sep 11	61.0°F	66.8°F	64.9°F
Sep 12	60.7°F	65.5°F	64.5°F
Sep 13	60.7°F	64.9°F	63.9°F
Sep 14	60.7°F	64.8°F	64.0°F
Sep 15	60.9°F	64.7°F	64.2°F
Sep 16	60.6°F	65.2°F	63.9°F
Sep 17	60.5°F	64.4°F	63.8°F
Sep 18	60.5°F	64.3°F	63.8°F
Sep 19	60.2°F	65.4°F	63.6°F
Sep 20	59.9°F	64.0°F	63.3°F
Sep 21	59.7°F	64.3°F	63.0°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 33.1°F in Winter, 36.8°F in Spring, 61.5°F in Summer, and 55.1°F in Autumn.