Shannon Sea Temperature
The water will feel cold. All but the most ardent watersports enthusiasts will be thinking of packing up for the winter. If not we'd suggest a thick 5/4mm wetsuit along with some boots and a hood.
The measurements for the water temperature in Shannon, Munster are provided by the daily satellite readings provided by the NOAA. The temperatures given are the sea surface temperature (SST) which is most relevant to recreational users.
Water temp by month
Monthly average max / min water temperatures
The graph below shows the range of monthly Shannon water temperature derived from many years of historical sea surface temperature data.
The warmest water temperature is in August with an average around 60.3°F / 15.7°C. The coldest month is March with an average water temperature of 48.9°F / 9.4°C.
7 day tide forecast for Shannon
*These tide times are estimates based on the nearest accurate location (Talbert Island, River Shannon, Ireland) and may differ by up to half an hour depending on distance. Please note, the tide times given are not suitable for navigational purposes.