Water temperature in Menai Bridge

This data the coastal Menai Bridge sea water temperature today, tomorrow and the upcoming days. Besides, you can also get information about the weather and surf forecast, as well as the data on sunrise / sunset and moonrise / moonset at a given point on any given day.

Current sea temperature in Menai Bridge

Water temperature in Menai Bridge today is 17.4°C. Based on our historical data over a period of ten years, the warmest water in this day in Menai Bridge was recorded in 2022 and was 17.8°C, and the coldest was recorded in 2015 at 15.4°C. Sea water temperature in Menai Bridge is expected to drop to 15.9°C in the next 10 days. September average water temperature in Menai Bridge is 15.8°C, the minimum temperature is 13.9°C, and the maximum is 17.9°C.

Throughout the year, the water temperature in Menai Bridge does not rise above 20°C and therefore is not suitable for comfortable swimming. The average water temperature in Menai Bridge in winter reaches 7.9°C, in spring 8.9°C, in summer the average temperature rises to 15.1°C, and in autumn it is 13.7°C.

Menai Bridge water temperature now

The sea salinity in Menai Bridge is 33.88‰, and the average salinity of the World Ocean is 35‰.

Surf Forecast in Menai Bridge for today

Another important indicators for a comfortable holiday on the beach are the presence and height of the waves, as well as the speed and direction of the wind. Please find below data on the swell size for Menai Bridge. We calculate the swell size based on the mean wave height (trough to crest) of each third highest wave. For more information on surf forecasts for the next ten days, please visit sea state forecast Menai Bridge. Data in table shown for 6 September 2025, time in GMT 0 format (you can change the time zone on the sea state forecast page)

Surf report in Menai Bridge

Menai Bridge weather forecast

Current temperature and weather

Data in a table show Menai Bridge temperature today (6 September 2025). For more information and forecast for a few days, go to the weather forecast Menai Bridge.

0-3 h	3-6 h	6-9 h	9-12 h
11.8°C	11.5°C	12°C	14.8°C

12-15 h	15-18 h	18-21 h	21-24 h
16.2°C	16.1°C	14.7°C	12.1°C

Menai Bridge water temperature by month

These figures shows the average, minimum and maximum monthly sea temperature in Menai Bridge. In addition to the table values, the graph below displays of changes average surface temperature during the year. Values are calculated based on the data over the past 10 years. Using them, you can check the water temperature in Menai Bridge on any day of this period that interests you. Click on the month link and you will see a table for each day, or alternatively you can view the temperature curve of the month and select 2 different years you want to compare, either in a table or as a curve

Chart monthly average water temperature in Menai Bridge

The nearest beaches and cities from Menai Bridge with the water temperature today, as well as the air temperature and the state of the weather during the day and the average wave height for today

	Water	Weather		Wave
Bangor	17.5°C	16°C		0.31 m
Penmaenmawr	17.6°C	17°C		0.34 m
Moelfre	17.3°C	16°C		0.43 m
Caernarfon	17.5°C	16°C		0.58 m
Newborough	17.5°C	16°C		0.58 m
Cwyfan	17.3°C	16°C		0.58 m
Cemaes	17.1°C	16°C		0.47 m
Rhosneigr	17.1°C	16°C		0.7 m
Anglesey	17.2°C	16°C		0.7 m
Dinas Dinlle	17.5°C	16°C		0.68 m

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Our report for Menai Bridge is compiled using satellite data together with in-situ observations to get the most reliable daily data of sea surface temperatures, surf forecasts, current temperatures and weather forecasts.