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 13.81°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.

New Zealand > 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.

56.9

°F

May 10, 15:11

Trend:

increasing

Yesterday:

56.8°F

Tomorrow:

57.0°F

Sunrise:

07:30

Sunset:

17:21

Day Length:

9 h. 51 min.

Belfast in May

Minimum:

59.9°F

Average:

62.4°F

Maximum:

64.2°F

Sea water temperature in Belfast today

As of now, in Belfast, the water temperature is 56.9°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 0.2°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 rise a bit.

Recent sea temperature and forecast

The water temperature today is above average for the last two weeks, showing a small increase in temperature. 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 58.0°F on 2016, while the historical minimum was 54.6°F on 2020.

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 minimum recorded over the past years. The forecast for the upcoming week shows a gradual cooling trend. The average temperature is expected to be 56.3°F, the minimum temperature may reach 55.5°F, and the maximum might stay at 57.0°F.

Daily water temperature in Belfast

Date	Current Year actual* / forecast**	last year	10 years average
Apr 26	56.2°F	57.7°F	57.9°F
Apr 27	56.1°F	57.7°F	57.8°F
Apr 28	56.1°F	57.4°F	57.4°F
Apr 29	56.3°F	57.4°F	57.3°F
Apr 30	57.0°F	57.3°F	57.3°F
May 1	56.8°F	57.0°F	57.1°F
May 2	56.3°F	56.9°F	57.0°F
May 3	55.7°F	56.9°F	57.0°F
May 4	55.7°F	56.9°F	56.8°F
May 5	55.6°F	56.4°F	56.7°F
May 6	55.6°F	56.1°F	56.6°F
May 7	55.8°F	55.5°F	56.5°F
May 8	55.7°F	56.0°F	56.6°F
May 9	56.8°F	56.0°F	56.6°F
May 10	56.9°F	56.1°F	56.6°F
May 11	57.0°F	56.3°F	56.8°F
May 12	56.8°F	56.1°F	56.6°F
May 13	56.7°F	55.8°F	56.4°F
May 14	56.4°F	55.7°F	56.1°F
May 15	56.1°F	56.6°F	55.9°F
May 16	55.7°F	55.3°F	55.5°F
May 17	55.5°F	54.5°F	55.3°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.