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 15.25°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.

59.5

°F

October 10, 17:30

Trend:

decreasing

Yesterday:

60.2°F

Tomorrow:

59.1°F

Sunrise:

07:21

Sunset:

18:35

Day Length:

11 h. 14 min.

Belfast in October

Minimum:

32.0°F

Average:

32.2°F

Maximum:

33.5°F

Sea water temperature in Belfast today

As of now, in Belfast, the water temperature is 59.5°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 0.9°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 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 also aligns closely with the historical average temperature for this date, indicating a typical climate pattern. The maximum temperature recorded for this date was 60.6°F on 2023, while the historical minimum was 56.2°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 57.9°F, the minimum temperature may reach 57.0°F, and the maximum might stay at 59.1°F.

Daily water temperature in Belfast

Date	Current Year actual* / forecast**	last year	10 years average
Sep 26	60.6°F	61.1°F	61.4°F
Sep 27	61.8°F	60.7°F	61.0°F
Sep 28	62.0°F	60.5°F	61.0°F
Sep 29	61.9°F	62.7°F	61.4°F
Sep 30	61.4°F	61.2°F	60.9°F
Oct 1	61.3°F	61.4°F	60.8°F
Oct 2	60.5°F	61.0°F	60.5°F
Oct 3	59.7°F	60.9°F	60.2°F
Oct 4	59.3°F	60.2°F	59.8°F
Oct 5	59.7°F	60.0°F	59.6°F
Oct 6	59.1°F	59.6°F	59.3°F
Oct 7	60.5°F	59.4°F	59.4°F
Oct 8	60.6°F	60.0°F	59.3°F
Oct 9	60.2°F	60.1°F	59.1°F
Oct 10	59.5°F	58.9°F	58.6°F
Oct 11	59.1°F	58.7°F	58.2°F
Oct 12	58.4°F	57.4°F	57.6°F
Oct 13	58.3°F	57.8°F	57.4°F
Oct 14	57.8°F	57.0°F	56.9°F
Oct 15	57.5°F	56.8°F	56.7°F
Oct 16	57.3°F	56.5°F	56.4°F
Oct 17	57.0°F	56.3°F	56.1°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, 36.6°F in Spring, 61.4°F in Summer, and 55.1°F in Autumn.