Every detail of Isle of Man's record July heatwave

The Isle of Man has recorded its warmest summer since records began, according to the Government's seasonal climate summary.

Summer 2026 had an average temperature of 16.4C (61.5F), beating the previous record of 16.0C (60.8F), which was set only last year.

It means the Island has now had its two warmest summers on record in consecutive years.

The season was also unusually dry and sunny, including a 24-day drought in July and the second-sunniest July ever recorded.

The summer's warmth came from persistently above-average temperatures, rather than any single heatwave.

The average minimum night-time temperature was 13.4C (56.1F), the highest on record, while the mean maximum of 19.4C (66.9F) was the second highest, behind only 1995.

Despite that, the summer's hottest day only reached 27.6C (81.7F), some way short of the all-time record of 28.9C (84F) set in 1983.

There were 34 days of 20C (68F) or higher, the joint second-highest count on record.

June was wetter than average, with 95.8mm of rain falling over the month.

July then turned almost bone dry, with just 2mm falling all month, including a 24-day dry spell from 1 to the 25th of July, the fourth-longest drought recorded in any Manx summer.

The total amount of sunshine recorded was 664.8 hours, driven largely by a sunny July. Despite this, it fell well short of the all-time summer sunshine record of 756.7 hours, set in 1995.

Summer 2026 continues a recent run of exceptionally warm seasons on the Island.

Alongside 2025, summers in 2018, 2022 and 2023 also rank among the five warmest ever recorded, with records dating back to 1947.

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