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 9.72°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.

United Kingdom > 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.

49.5

°F

April 22, 11:57

Trend:

increasing

Yesterday:

48.4°F

Tomorrow:

49.7°F

Sunrise:

06:06

Sunset:

20:40

Day Length:

14 h. 34 min.

Belfast in April

Minimum:

43.4°F

Average:

48.3°F

Maximum:

49.9°F

Sea water temperature in Belfast today

As of now, in Belfast, the water temperature is 49.5°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 1.0°F higher than the average recorded on this particular day in recent years. Since yesterday, there was a noticeable increase in temperature. This indicates a warming trend over the past day. According to the forecast, we expect the temperature to rise a bit.

Recent sea temperature and forecast

Today's water temperature is notably higher than the average recorded over the past two weeks, indicating a significant warming trend. It is also close to the historical maximum temperature for this date. The maximum temperature recorded for this date was 50.5°F on 2020, while the historical minimum was 46.5°F on 2018.

latest data

last year

Over the past two weeks, the water temperature has closely aligned with historical averages for those days. The forecast for the upcoming week suggests a gradual increase. The average temperature is expected to rise up to 50.0°F, with minimum temperature starting at 49.7°F, while the maximum might reach 50.2°F.

Daily water temperature in Belfast

Date	Current Year actual* / forecast**	last year	10 years average
Apr 8	46.5°F	49.2°F	47.0°F
Apr 9	46.3°F	49.2°F	46.9°F
Apr 10	46.8°F	49.6°F	47.0°F
Apr 11	47.0°F	49.4°F	46.9°F
Apr 12	47.0°F	49.8°F	47.0°F
Apr 13	47.0°F	50.1°F	47.0°F
Apr 14	47.4°F	50.0°F	47.1°F
Apr 15	47.5°F	49.8°F	47.2°F
Apr 16	47.8°F	49.6°F	47.4°F
Apr 17	48.1°F	49.5°F	47.6°F
Apr 18	48.1°F	49.2°F	47.6°F
Apr 19	47.9°F	49.1°F	47.8°F
Apr 20	48.4°F	48.9°F	47.9°F
Apr 21	48.4°F	48.7°F	48.2°F
Apr 22	49.5°F	48.7°F	48.5°F
Apr 23	49.7°F	49.5°F	48.7°F
Apr 24	49.8°F	50.0°F	48.7°F
Apr 25	50.0°F	49.9°F	49.0°F
Apr 26	50.1°F	49.8°F	49.0°F
Apr 27	50.1°F	49.7°F	49.0°F
Apr 28	50.1°F	49.6°F	49.0°F
Apr 29	50.2°F	49.5°F	49.2°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 14, 2022, reaching a 62.9°F. While the coldest temperature occurred on January 9, 2021, dipping to 42.4°F. The average readings by season are 47.7°F in Winter, 48.1°F in Spring, 57.0°F in Summer, and 55.8°F in Autumn.