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 18.1°C. Swimming in water of this temperature is generally concidered to be cool, and most people won't really enjoy it.

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.

64.6

°F

August 20, 02:51

Trend:

decreasing

Yesterday:

64.7°F

Tomorrow:

64.5°F

Sunrise:

06:05

Sunset:

20:34

Day Length:

14 h. 29 min.

Bangor in August

Minimum:

44.9°F

Average:

46.7°F

Maximum:

48.5°F

Sea water temperature in Bangor today

As of now, in Bangor, the water temperature is 64.6°F. Swimming in water of this temperature is generally concidered to be cool, and most people won't really enjoy it. Today's reading is 2.6°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 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 64.3°F on 2022, while the historical minimum was 60.2°F on 2015.

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 maximum recorded over the past years. Over the next week, the forecast shows a steady trend, with temperatures staying close to the average of 64.5°F. Both minimum and maximum temperatures expected to be close to the average, offering a week of stable water conditions.

Daily water temperature in Bangor

Date	Current Year actual* / forecast**	last year	10 years average
Aug 6	62.6°F	63.3°F	61.6°F
Aug 7	62.5°F	63.0°F	61.6°F
Aug 8	62.4°F	62.7°F	61.6°F
Aug 9	62.5°F	62.5°F	61.7°F
Aug 10	62.3°F	62.3°F	61.5°F
Aug 11	62.3°F	62.3°F	61.5°F
Aug 12	63.2°F	62.7°F	61.8°F
Aug 13	63.6°F	62.8°F	62.0°F
Aug 14	63.4°F	63.0°F	62.1°F
Aug 15	63.3°F	63.0°F	62.1°F
Aug 16	63.8°F	62.7°F	62.3°F
Aug 17	64.8°F	62.4°F	62.3°F
Aug 18	65.0°F	62.5°F	62.5°F
Aug 19	64.7°F	62.2°F	62.1°F
Aug 20	64.6°F	61.9°F	62.0°F
Aug 21	64.5°F	61.9°F	61.9°F
Aug 22	64.6°F	61.9°F	62.0°F
Aug 23	64.5°F	61.7°F	61.9°F
Aug 24	64.6°F	61.5°F	62.0°F
Aug 25	64.6°F	61.0°F	62.0°F
Aug 26	64.5°F	60.8°F	62.0°F
Aug 27	64.5°F	60.8°F	61.9°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 18, 2025, reaching a 65.0°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, 48.1°F in Spring, 59.6°F in Summer, and 57.0°F in Autumn.

Popular neighboring cities and resorts

City	Water temperature*	Distance**
Caernarfon	65.3°F	8mi
Conwy	66.3°F	13mi
Holyhead	62.1°F	21mi
Aberystwyth	66.4°F	56mi
Douglas	61.9°F	65mi

* current water temperature in this city

** straight line distance from Bangor