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 9.89°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.

United States > Belfast

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.

49.8

°F

November 21, 04:52

Trend:

stable

Yesterday:

49.7°F

Tomorrow:

49.8°F

Sunrise:

06:41

Sunset:

16:03

Day Length:

9 h. 22 min.

Belfast in November

Minimum:

37.2°F

Average:

39.7°F

Maximum:

41.8°F

Sea water temperature in Belfast today

As of now, in Belfast, the water temperature is 49.8°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 0.5°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 is considerably lower than the average registered over the last two weeks, indicating a slight cooling trend. It also falls within the range of the average temperature recorded for this date, suggesting a consistent weather trend. The maximum temperature recorded for this date was 50.9°F on 2017, while the historical minimum was 47.4°F on 2018.

latest data

last year

Over the last two weeks, the water temperature has stayed slightly lower than historical averages for those days. The forecast for the upcoming week shows a gradual cooling trend. The average temperature is expected to be 48.9°F, the minimum temperature may reach 48.1°F, and the maximum might stay at 49.8°F.

Daily water temperature in Belfast

Date	Current Year actual* / forecast**	last year	10 years average
Nov 7	52.1°F	53.3°F	52.5°F
Nov 8	51.9°F	53.1°F	52.4°F
Nov 9	51.2°F	51.6°F	51.8°F
Nov 10	51.1°F	51.6°F	51.7°F
Nov 11	50.9°F	51.3°F	51.4°F
Nov 12	50.8°F	50.6°F	51.4°F
Nov 13	50.6°F	51.0°F	51.2°F
Nov 14	50.5°F	50.6°F	51.1°F
Nov 15	51.1°F	49.2°F	50.7°F
Nov 16	50.7°F	49.4°F	50.3°F
Nov 17	50.4°F	50.1°F	50.2°F
Nov 18	50.0°F	49.8°F	49.7°F
Nov 19	49.5°F	49.5°F	49.5°F
Nov 20	49.7°F	49.4°F	49.4°F
Nov 21	49.8°F	49.1°F	49.4°F
Nov 22	49.8°F	48.8°F	49.4°F
Nov 23	49.7°F	48.5°F	49.2°F
Nov 24	48.9°F	47.2°F	48.5°F
Nov 25	48.8°F	47.5°F	48.4°F
Nov 26	48.7°F	47.7°F	48.3°F
Nov 27	48.5°F	47.3°F	48.1°F
Nov 28	48.1°F	47.3°F	47.6°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 July 30, 2023, reaching a 71.2°F. While the coldest temperature occurred on March 2, 2015, dipping to 32.0°F. The average readings by season are 39.8°F in Winter, 41.6°F in Spring, 60.3°F in Summer, and 55.6°F in Autumn.