What is the current water temperature in Bangor?

Q: What is the current water temperature in Bangor?

As of now, in Bangor, the water temperature is 10.68°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 > Bangor

Water temperature in Bangor

Detailed information about the current water temperature in Bangor. 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.

51.2

°F

April 29, 16:11

Trend:

increasing

Yesterday:

50.7°F

Tomorrow:

51.3°F

Sunrise:

05:48

Sunset:

20:41

Day Length:

14 h. 53 min.

Bangor in May

Minimum:

45.1°F

Average:

47.0°F

Maximum:

48.8°F

Sea water temperature in Bangor today

As of now, in Bangor, the water temperature is 51.2°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 1.8°F higher than the average recorded on this particular day in recent years. Since yesterday, there was a slight increase in temperature. This indicates a warming trend over the past day. According to the forecast, we expect the temperature to stay about the same.

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 50.6°F on 2024, while the historical minimum was 47.1°F on 2018.

latest data

last year

Observations from the last two weeks indicate that the water temperature was in proximity to the highest values recorded on those days in the past. The forecast for the upcoming week suggests a gradual increase. The average temperature is expected to rise up to 51.8°F, with minimum temperature starting at 51.3°F, while the maximum might reach 52.3°F.

Daily water temperature in Bangor

Date	Current Year actual* / forecast**	last year	10 years average
Apr 15	48.2°F	49.2°F	47.7°F
Apr 16	48.6°F	49.1°F	47.9°F
Apr 17	48.6°F	49.0°F	48.0°F
Apr 18	48.8°F	48.9°F	48.1°F
Apr 19	49.2°F	48.9°F	48.3°F
Apr 20	49.5°F	48.8°F	48.5°F
Apr 21	49.6°F	48.5°F	48.7°F
Apr 22	49.7°F	48.9°F	49.0°F
Apr 23	49.8°F	49.0°F	48.9°F
Apr 24	50.3°F	49.6°F	49.1°F
Apr 25	50.3°F	49.7°F	49.2°F
Apr 26	50.9°F	49.7°F	49.3°F
Apr 27	51.3°F	50.8°F	49.4°F
Apr 28	50.7°F	50.5°F	49.3°F
Apr 29	51.2°F	50.5°F	49.4°F
Apr 30	51.3°F	50.8°F	49.4°F
May 1	51.6°F	51.7°F	49.7°F
May 2	51.6°F	51.8°F	49.8°F
May 3	51.7°F	52.2°F	49.9°F
May 4	51.8°F	52.4°F	49.9°F
May 5	52.1°F	52.7°F	50.3°F
May 6	52.3°F	52.7°F	50.4°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 Bangor by month

In an average year, Bangor offers no days when the water temperature is warm enough to swim comfortably.

The warmest water in Bangor was recorded on August 27, 2025, reaching a 65.2°F. While the coldest temperature occurred on March 9, 2018, dipping to 41.1°F. The average readings by season are 46.3°F in Winter, 48.3°F in Spring, 59.9°F in Summer, and 57.1°F in Autumn.

Popular neighboring cities and resorts

City	Water temperature*	Distance**
Caernarfon	52.8°F	8mi
Conwy	52.8°F	13mi
Holyhead	51.1°F	21mi
Aberystwyth	52.3°F	56mi
Douglas	49.8°F	65mi

* current water temperature in this city

** straight line distance from Bangor