2025 was island's fourth hottest year on record

Jersey Met Office has confirmed that 2025 was the island's fourth hottest year on record.

Forecasters said it was also the fourth sunniest, notching up a total of 2,383 hours of sunshine.

According to Paul Aked, head of meteorology, an average annual temperature of 13.3C (56F) was recorded, which is almost a degree above the 30-year average.

He warned that, with the warmer temperatures, we should expect "more extreme weather events".

Aked revealed that both spring in general and June had been "the warmest since records began".

June contained "the hottest day of the year with 33.4C (92F)", along with several others which reached heatwave temperatures of above 30C (86F).

That same month also had what forecasters call a "tropical night" - when nocturnal temperatures stayed above 20C (68F).

Sea temperatures were, on average, the second warmest for the summer months.

The forecaster reported 2025 was one of only 12 years since records began when there was no presence of air frost - namely, when the air temperature falls below freezing.

The total number of ground frosts was 21, well below the long-term average of 45.8 days, while the lowest temperature was on 3 January when the mercury dropped to 0.1C (32F).

Eight months of the year saw below average rainfall, despite January being the wettest on record.

Aked said 2025 as a whole experienced 823.6mm (32.4in) of rainfall, falling short of the long-term average by nearly 95mm (3.7in).

"For every degree our atmosphere warms, the atmosphere can hold seven percent more moisture, adding to the wetter weather," he said.

"As a result, we should be prepared for the potential to see more extreme weather events as our temperature rises."

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