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 8.26°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.

46.9

°F

March 22, 05:21

Trend:

increasing

Yesterday:

46.8°F

Tomorrow:

47.1°F

Sunrise:

06:15

Sunset:

18:33

Day Length:

12 h. 18 min.

Bangor in March

Minimum:

45.6°F

Average:

47.0°F

Maximum:

48.8°F

Sea water temperature in Bangor today

As of now, in Bangor, the water temperature is 46.9°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 1.5°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 rise a bit.

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 46.8°F on 2017, while the historical minimum was 41.5°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 47.4°F, with minimum temperature starting at 47.1°F, while the maximum might reach 47.7°F.

Daily water temperature in Bangor

Date	Current Year actual* / forecast**	last year	10 years average
Mar 8	45.7°F	46.1°F	44.5°F
Mar 9	45.3°F	45.8°F	44.4°F
Mar 10	44.7°F	46.1°F	44.3°F
Mar 11	45.8°F	46.3°F	44.4°F
Mar 12	45.9°F	46.0°F	44.3°F
Mar 13	45.6°F	45.7°F	44.3°F
Mar 14	45.5°F	45.5°F	44.2°F
Mar 15	45.3°F	45.6°F	44.1°F
Mar 16	45.8°F	45.6°F	44.2°F
Mar 17	46.2°F	45.5°F	44.6°F
Mar 18	47.2°F	45.4°F	44.8°F
Mar 19	46.7°F	45.4°F	45.0°F
Mar 20	46.5°F	45.4°F	45.0°F
Mar 21	46.8°F	46.4°F	45.3°F
Mar 22	46.9°F	46.2°F	45.4°F
Mar 23	47.1°F	46.2°F	45.6°F
Mar 24	47.1°F	46.0°F	45.6°F
Mar 25	47.3°F	46.3°F	45.8°F
Mar 26	47.4°F	46.8°F	46.0°F
Mar 27	47.6°F	46.9°F	46.1°F
Mar 28	47.6°F	47.1°F	46.1°F
Mar 29	47.7°F	47.6°F	46.3°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 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	48.3°F	8mi
Conwy	47.2°F	13mi
Holyhead	47.7°F	21mi
Aberystwyth	48.5°F	56mi
Douglas	47.2°F	65mi

* current water temperature in this city

** straight line distance from Bangor