JERSEY Met has confirmed what many Islanders suspected as they endured yet another cloudburst – it was one of the wettest winters on record.
The weather bureau’s stats for meteorological winter – covering December, January and February – showed that the rainfall figure for 2025/26 was the third-highest recorded since 1894.
A total of 452.8 millimetres of rain was recorded – more than one-and-a-half times the average amount over the past 30 years. Jersey’s wettest-ever winter brought 485.4mm of rain in 1994/95, while the figure for 2020/21 was 461.1mm.
But it was also a very mild winter, with an average temperature of 8.5°C being 1.3°C above the 30-year average, and making 2025/26 the sixth-warmest winter ever, with the highest figure of 9°C recorded in 2015/16.
January brought some of the most extreme conditions, with the lowest temperature of the winter of -0.3°C on 6 January, followed by the battering from Storm Goretti just two days later.
Jersey Met also published data for February, with the third and final month of the winter showing the same trend for mild, wet weather as for the whole season.
A total of 182.7mm of rain represented a 130% increase on the monthly average and made last month the wettest February on record, surpassing the 170.5mm recorded in 1957.
February featured just three days without measurable rainfall, while 61.8mm was recorded in just two days on 17 and 18 February.
It was also one of the three mildest Februarys on record, with a mean temperature of 9.5°C – the same figure as 1990 and just 0.1°C short of the record, which was set in 2024.
