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 12.38°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.

54.3

°F

June 7, 05:48

Trend:

decreasing

Yesterday:

54.4°F

Tomorrow:

54.2°F

Sunrise:

07:56

Sunset:

17:00

Day Length:

9 h. 4 min.

Belfast in June

Minimum:

60.0°F

Average:

62.5°F

Maximum:

65.3°F

Sea water temperature in Belfast today

As of now, in Belfast, the water temperature is 54.3°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 1.5°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 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 maximum temperature for this date. The maximum temperature recorded for this date was 54.4°F on 2022, while the historical minimum was 50.8°F on 2024.

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 53.6°F, the minimum temperature may reach 53.1°F, and the maximum might stay at 54.2°F.

Daily water temperature in Belfast

Date	Current Year actual* / forecast**	last year	10 years average
May 24	55.1°F	53.9°F	54.6°F
May 25	54.6°F	53.7°F	54.3°F
May 26	54.4°F	54.8°F	54.2°F
May 27	54.3°F	54.3°F	54.1°F
May 28	53.8°F	54.2°F	53.9°F
May 29	53.8°F	54.3°F	53.8°F
May 30	53.6°F	54.1°F	53.8°F
May 31	54.1°F	54.2°F	53.7°F
Jun 1	54.4°F	54.2°F	53.6°F
Jun 2	54.2°F	53.8°F	53.4°F
Jun 3	53.7°F	53.7°F	53.2°F
Jun 4	53.8°F	53.5°F	53.1°F
Jun 5	54.1°F	53.5°F	53.0°F
Jun 6	54.4°F	53.7°F	52.9°F
Jun 7	54.3°F	53.6°F	52.8°F
Jun 8	54.2°F	53.4°F	52.6°F
Jun 9	53.9°F	53.1°F	52.4°F
Jun 10	53.9°F	52.7°F	52.3°F
Jun 11	53.6°F	52.4°F	52.1°F
Jun 12	53.5°F	52.3°F	52.0°F
Jun 13	53.3°F	52.0°F	51.8°F
Jun 14	53.1°F	51.6°F	51.6°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 January 31, 2018, reaching a 69.7°F. While the coldest temperature occurred on August 14, 2022, dipping to 46.6°F. The average readings by season are 62.9°F in Winter, 59.0°F in Spring, 49.9°F in Summer, and 54.1°F in Autumn.