Extreme heat days per year in Eskdalemuir

Updated: 2026-08-08

To put that figure in context: in 1910, the year the station's continuous series begins, the highest temperature reached all year was just 24.4°C. The 2022 reading therefore sits more than 8 degrees above what passed for a summer peak in the early decades of the record — and it is the only day in the entire 1910–2026 series in which the mercury exceeded 30°C at this upland site in Dumfries and Galloway.

The core question for anyone planning a visit or an outdoor event here is simple: how many days in a typical year does Eskdalemuir actually get above the thresholds we associate with heat? The Met Office data allows us to count, for every year, the number of days above three practical limits: 23°C (a warm day in Scottish terms), 26°C (genuinely hot), and 28°C (the threshold that matters for extreme heat). The table below shows the full annual series from 1910 to 2026.

When do the hot days happen?

Averaging across all years in the series, the Met Office data shows that days above 28°C cluster in a short summer window. The monthly means below are the average number of such days per year in each month.

No other month has produced a day above 28°C in the entire 1910–2026 record. Extreme heat at Eskdalemuir is therefore a strictly midsummer phenomenon, with June carrying the highest average and August bringing up the rear. Take this into account if you are planning outdoor work or events in the hills around the station.

The five hottest days on record

These are the top five maximum temperatures measured at Eskdalemuir in the Met Office's MIDAS series, excluding inconsistent provisional records:

The list reveals a striking pattern. The 32.3°C reading of July 2022 stands isolated at the top, nearly 2.5 degrees above the next-highest figure. Below it, three dates share 29.8°C — one from the famous summer of 1976, one from 2019, and one from late June 2026, which has already made this year the joint-most extreme in the modern era for temperature. The 2026 total of 3 days above 28°C (the third day of the year above the threshold, recorded on 2026-06-24) equals the highest annual count in the entire series.

A closer look at the extreme years

Only five years in the entire 1910–2026 series have registered 2 or more days above 28°C: 1934, 1976, 2006, 2009, 2018, 2022, and 2026. What makes this remarkable is how clustered these years are on the calendar. The 1930s produced one standout year in 1934; nothing comparable happened again until the mid-1970s; and then the frequency rises sharply in the 21st century, with multiple occurrences in the last two decades alone.

Meanwhile, the count of warm days (above 23°C) shows the same trend in a different way. The record year for warm days is 1976, with 25 such days; the second-highest is 1995, with 23; and 1975 stands at 22. These are the only three years in the 117-year record with more than 20 warm days.

What drives extreme heat in Eskdalemuir?

Eskdalemuir sits in the Southern Uplands of Scotland, a location that rarely experiences the direct continental heat of southeast England. The station's elevation means that even on days when southern Britain records temperatures above 30°C, the Uplands often stay several degrees cooler. Yet the 32.3°C of July 2022 shows that when the right combination of warm air advection and clear skies align, even this sheltered spot can produce heat comparable to cities far to the south.

The monthly distribution makes sense for the latitude: June, with its long daylight hours, provides the most frequent heat days, while July and August temperatures are slightly moderated by shorter days and the tendency for showery, westerly weather that characterises late summer in Scotland.

The 2026 season in perspective

With data running up to 7 August 2026, this year already stands out. The station has recorded 3 days above 28°C — including a reading of 29.8°C, the joint-strongest of the modern era — and 5 days above 26°C. That puts 2026 on par with the most heat-intense years in the record, and the season is not yet over. Whether August will add to the total or the year will settle into the pattern of, say, 2018 or 2022 remains to be seen.

Source: Met Office — Eskdalemuir, Scotland. Data period: 1910–2026. Official MIDAS archive data, published under the Open Government Licence (OGL v3.0).

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