All data are in degrees Fahrenheit

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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.
Sea temperature in Bangor now

62.8

°F

September 16, 23:23

Trend:

decreasing

Yesterday:

63.3°F

Tomorrow:

62.7°F

Sunrise:

06:51

Sunset:

19:31

Day Length:

12 h. 40 min.

Bangor in September

Minimum:

44.8°F

Average:

46.2°F

Maximum:

48.4°F

Sea water temperature in Bangor today

As of now, in Bangor, the water temperature is 62.8°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 1.7°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 fall a bit.

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 is also close to the historical maximum temperature for this date. The maximum temperature recorded for this date was 62.7°F on 2022, while the historical minimum was 60.0°F on 2024.

Over the last two weeks, the water temperature has stayed slightly above than historical averages for those days. The forecast for the upcoming week shows a gradual cooling trend. The average temperature is expected to be 62.4°F, the minimum temperature may reach 62.1°F, and the maximum might stay at 62.7°F.

Daily water temperature in Bangor

Date Current Year

actual* / forecast**

last year 10 years average
Sep 2 64.3°F 63.3°F 62.2°F
Sep 3 64.0°F 63.1°F 62.2°F
Sep 4 63.8°F 63.3°F 62.2°F
Sep 5 63.9°F 63.3°F 62.3°F
Sep 6 63.6°F 63.3°F 62.3°F
Sep 7 63.5°F 63.1°F 62.3°F
Sep 8 63.2°F 63.0°F 62.3°F
Sep 9 63.3°F 62.8°F 62.2°F
Sep 10 63.1°F 62.7°F 62.1°F
Sep 11 62.6°F 62.5°F 61.8°F
Sep 12 62.8°F 62.2°F 61.7°F
Sep 13 62.4°F 61.9°F 61.5°F
Sep 14 62.5°F 61.5°F 61.4°F
Sep 15 63.3°F 61.1°F 61.5°F
Sep 16 62.8°F 61.0°F 61.2°F
Sep 17 62.7°F 60.7°F 61.0°F
Sep 18 62.7°F 60.5°F 61.1°F
Sep 19 62.6°F 60.5°F 60.9°F
Sep 20 62.5°F 60.5°F 60.9°F
Sep 21 62.3°F 60.4°F 60.6°F
Sep 22 62.2°F 60.4°F 60.5°F
Sep 23 62.1°F 60.0°F 60.5°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 15, 2026, reaching a 66.3°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, 48.4°F in Spring, 60.1°F in Summer, and 57.1°F in Autumn.

Popular neighboring cities and resorts

City Water temperature* Distance**
Caernarfon 63.0°F 8mi
Conwy 63.0°F 13mi
Holyhead 61.8°F 21mi
Aberystwyth 64.6°F 56mi
Douglas 61.0°F 65mi

* current water temperature in this city

** straight line distance from Bangor