12 February 2025
Jersey Met has confirmed the average annual temperature for 2024 was 12.94°C making it the
seventh-warmest year on record.
The average annual temperature takes an average of all days throughout the year, including
night-time minimum temperatures and daily maximum temperatures. Official temperatures
have been recorded at the Maison St Louis Observatory since 1894.
Head of Meteorology for Jersey Met, Paul Aked, said: “The daily maximum temperatures for
2024 were on average 0.32°C higher than the long-term average, however the nighttime
minimums were 0.81°C above the long-term average. It is in this detail, you can see the impacts
warmer nights are having, contributing to the overall annual temperature being the seventh
warmest on record.
“Along with temperature rise, for every degree our atmosphere warms, the atmosphere can
hold 7% more moisture, adding to the wetter weather. As a result, we should be prepared for
the potential to see more extreme weather events as our temperature rises.”
Minister for the Environment, Deputy Steve Luce, said: “I thank Jersey Met for providing us
this crucial information, which comes just after an announcement by the World Meteorological
Organisation last week that January 2025 was the hottest January ever recorded,
globally.
“The trends we are witnessing have a huge impact on everyone. With increasing temperatures
are associated impacts on biodiversity, food security, and sea levels – which as an island is
greatly concerning. This year, I will continue to encourage Islanders to reduce their carbon
footprint through the policies in our Carbon Neutral Roadmap. We must ensure Jersey remains
on a pathway to net zero by 2050, in line with the internationally recognised targets of the Paris
Agreement.”
As a result of the 2024 temperature, another dark red stripe will be added to the Jersey Climate
Stripes at the Waterfront. Using colour, the stripes show how the Island’s climate is warming
over time, and act as a visual climate change reminder. Once the new stripe has been added,
there will be a total of 131 stripes – each representing a year from 1894 through to 2024.
gov.je