Summer 2025 the warmest on record

Ronaldsway Met Office has published its latest weather report

This summer was the warmest on record for the Isle of Man.

Ronaldsway Met Office has published its latest report.

Despite a blip over TT, June, July and August had consistently warm temperatures and below average rainfall.

It follows the warmest and sunniest spring on record here on the Island.

The mean daily high was 18.8 degrees Celsius, which is 1.24 degrees above the standard 30-year average.

The highest temperature was 26.7 degrees, which was on the 12 July.

Mean daily minimum temperatures were also significantly above average for all three months.

The 24 hour mean temperature was 16 degrees, which broke the previous record from 1995.

While the Island didn't see any extreme peaks in temperature, the consistency of the warm conditions is what made it the warmest summer on record.

The unusually high sea temperatures, especially after the warm spring, are thought to have contributed to the warm nights with the average lowest temperature of 13.2 degrees also beating the record.

In terms of rainfall, summer got off to a poor start, totalling 83.8mm in June.

However, in July it halved to 40.5mm and then again to 23.3mm in August.

So far in 2025, total rainfall is just 366mm compared to the usual average of around 500mm.

July and August had slightly more sunshine than the long term average, but the poor start to June balanced that out, so the total over the summer months came to 582.5 hours which is almost right on the 30 year average.

Meanwhile July had lighter winds than average, but unseasonably strong winds early in June and in early August meant those months were slightly higher.

The strongest gusts of 45 knots were overnight on the 2 and 3 June, causing issues for TT visitors, especially those camping.

Storm Floris came close though, with gusts of 42 knots being reported on the 4 August.

You can read the full report here.