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 14.47°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.

58.0

°F

October 10, 15:30

Trend:

decreasing

Yesterday:

58.2°F

Tomorrow:

57.9°F

Sunrise:

07:33

Sunset:

18:33

Day Length:

11 h. 0 min.

Bangor in October

Minimum:

45.0°F

Average:

46.3°F

Maximum:

48.2°F

Sea water temperature in Bangor today

As of now, in Bangor, the water temperature is 58.0°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 about the same as 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 considerably lower than the average registered over the last two weeks, indicating a slight cooling trend. It also aligns closely with the historical average temperature for this date, indicating a typical climate pattern. The maximum temperature recorded for this date was 59.4°F on 2023, while the historical minimum was 56.3°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 shows a gradual cooling trend. The average temperature is expected to be 57.6°F, the minimum temperature may reach 57.3°F, and the maximum might stay at 57.9°F.

Daily water temperature in Bangor

Date	Current Year actual* / forecast**	last year	10 years average
Sep 26	59.5°F	59.2°F	59.8°F
Sep 27	59.3°F	59.0°F	59.7°F
Sep 28	59.3°F	58.8°F	59.5°F
Sep 29	59.3°F	58.7°F	59.4°F
Sep 30	59.1°F	58.8°F	59.3°F
Oct 1	59.3°F	58.9°F	59.4°F
Oct 2	59.4°F	58.8°F	59.4°F
Oct 3	59.3°F	58.4°F	59.3°F
Oct 4	59.2°F	58.2°F	59.1°F
Oct 5	58.8°F	58.1°F	58.9°F
Oct 6	58.6°F	57.8°F	58.7°F
Oct 7	58.4°F	57.6°F	58.5°F
Oct 8	58.2°F	57.6°F	58.4°F
Oct 9	58.2°F	57.3°F	58.2°F
Oct 10	58.0°F	57.2°F	57.9°F
Oct 11	57.9°F	56.8°F	57.8°F
Oct 12	57.8°F	56.9°F	57.7°F
Oct 13	57.7°F	56.4°F	57.6°F
Oct 14	57.6°F	56.5°F	57.5°F
Oct 15	57.6°F	56.6°F	57.5°F
Oct 16	57.5°F	56.5°F	57.4°F
Oct 17	57.3°F	56.1°F	57.2°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 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, 48.1°F in Spring, 59.6°F in Summer, and 57.0°F in Autumn.

Popular neighboring cities and resorts

City	Water temperature*	Distance**
Caernarfon	58.1°F	8mi
Conwy	58.1°F	13mi
Holyhead	59.0°F	21mi
Aberystwyth	58.2°F	56mi
Douglas	58.1°F	65mi

* current water temperature in this city

** straight line distance from Bangor