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 13.33°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.

56.0

°F

May 10, 05:13

Trend:

stable

Yesterday:

56.0°F

Tomorrow:

56.1°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 56.0°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 0.6°F lower 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 slightly 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 58.0°F on 2016, while the historical minimum was 54.6°F on 2020.

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 shows a gradual cooling trend. The average temperature is expected to be 55.4°F, the minimum temperature may reach 54.7°F, and the maximum might stay at 56.1°F.

Daily water temperature in Belfast

Date	Current Year actual* / forecast**	last year	10 years average
Apr 26	57.7°F	58.0°F	58.1°F
Apr 27	57.7°F	57.7°F	57.9°F
Apr 28	57.4°F	57.0°F	57.5°F
Apr 29	57.4°F	57.0°F	57.4°F
Apr 30	57.3°F	56.8°F	57.3°F
May 1	57.0°F	57.4°F	57.1°F
May 2	56.9°F	57.1°F	57.1°F
May 3	56.9°F	57.1°F	57.0°F
May 4	56.9°F	56.4°F	56.9°F
May 5	56.4°F	56.1°F	56.8°F
May 6	56.1°F	56.1°F	56.7°F
May 7	55.5°F	56.0°F	56.6°F
May 8	56.0°F	55.6°F	56.7°F
May 9	56.0°F	55.6°F	56.6°F
May 10	56.0°F	55.4°F	56.6°F
May 11	56.1°F	55.5°F	56.8°F
May 12	55.9°F	55.3°F	56.6°F
May 13	55.8°F	55.2°F	56.4°F
May 14	55.5°F	54.9°F	56.2°F
May 15	55.2°F	53.2°F	55.8°F
May 16	54.9°F	53.8°F	55.6°F
May 17	54.7°F	53.7°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 12, 2015, dipping to 45.5°F. The average readings by season are 62.8°F in Winter, 59.0°F in Spring, 49.7°F in Summer, and 53.9°F in Autumn.