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Average monthly sea temperatures

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WQ.293/2023

WRITTEN QUESTION TO THE MINISTER FOR THE ENVIRONMENT BY DEPUTY S.G. LUCE OF GROUVILLE AND ST. MARTIN QUESTION SUBMITTED ON MONDAY 26th JUNE 2023

ANSWER TO BE TABLED ON MONDAY 3rd JULY 2023

Question

“Will the Minister inform the Assembly of the average monthly sea temperatures in local waters over the last 10 years and the average quarterly sea temperatures over the last 20 years?”

Answer

The official sea temperature for Jersey is recorded by Jersey Met at the end of the Fuel Tanker Berth, St. Helier Harbour.

The monthly average sea temperature for the 10-year period from 2013 to 2022 in °C compared with the climatological 30-year period average from 1991 to 2020 is shown in the table below:

The quarterly average sea temperature for the 20-year period from 2003 to 2022 in °C is shown in the table below: