Updated: 2026-07-31
The point of measurement nearest to Glasgow is the station at Aberfoyle (in Perthshire-in-Central-Region), situated at 28 m of altitude, about 35.6 km from Glasgow. These are its historical records. The climate in Glasgow itself may differ slightly from this station's readings due to local factors such as elevation, proximity to water, or exposure to river valleys. This data is the best available reference, but it is not an exact measurement of Glasgow's weather.
The highest temperature ever recorded in June at this station was 29.7°C, reached on 30 June 1995. That afternoon marked the single hottest June day in the station's entire period of record, which spans from 1968 to 2001. It remains the benchmark for summer heat in this part of central Scotland.
The 29.7°C reading on 30 June 1995 is the summit of summer heat for the Aberfoyle station within the analysis period. The station's data begins on 1 January 1968 and continues through 1 October 2001, giving us 34 years of June observations. Over those decades, no other June day reached a higher maximum temperature. This value represents an intense, sustained warmth that is exceptional for a station located in a region more often associated with Atlantic fronts and cloud cover than with heatwaves.
To put the 29.7°C in perspective, consider the national June temperature records from the same Met Office station network. In a typical year, the warmest June days in the UK occur in the south and east of England, where continental air masses can push temperatures well into the 30s°C. The following table lists the ten highest June temperature records across the entire UK station network for the same period:
| Station | County/Region | June Record (°C) |
|---|---|---|
| East Dereham | Norfolk | 35.4 |
| Santon Downham (Grimes Graves) | Norfolk | 34.6 |
| March | Cambridgeshire | 34.4 |
| Scole | Norfolk | 34.3 |
| Cardington | Bedfordshire | 34.2 |
| Aldenham School No 2 | Hertfordshire | 34.1 |
| Stanstead Abbots | Hertfordshire | 34.1 |
| Cambridge Botanic Garden | Cambridgeshire | 34.0 |
| Wyton | Cambridgeshire | 34.0 |
| Garston Building Research | Hertfordshire | 34.0 |
The contrast is instructive. The 29.7°C recorded at Aberfoyle on 30 June 1995 is more than 5 degrees cooler than the national June record of 35.4°C at East Dereham, Norfolk. This difference reflects the strong latitudinal and maritime influence on Scotland's weather. While England's southeast can bake under high-pressure systems drawing hot air from the continent, Scotland's west coast and central regions are more frequently brushed by Atlantic systems that keep temperatures moderated, even in peak summer.
Yet within its own local context, the 29.7°C is still a significant extreme. It represents a day when the mercury rose to a level that would be remarkable in any Scottish June, and it stands as the definitive answer to any question about June heat at this location. The date, 30 June 1995, is one that would likely stand out to anyone who lived through it—a late-June day that brought summer at its most intense to the Trossachs area.
One notable aspect of this record is its vintage. It has stood for over two decades within the period of available data, and given that the station's records span only to 2001, it is the last word on June heat for this series. The record being from 1995 places it in a decade that saw several notable warm spells across the UK, but the fact that no subsequent June in the 1996-2001 period could match it suggests it was a genuinely exceptional day rather than a sign of a warming trend taking hold at this particular location.
It is worth recalling that the station's geographical setting at 28 m altitude, within a landscape shaped by the nearby river and hills, means that Glasgow's urban core—about 35.6 km away—might experience slightly different extremes due to the urban heat island effect or differences in local exposure. But the official Met Office record for this nearest station remains the most reliable, verifiable measure we have for June heat in the Glasgow area.
The June heat record for the Aberfoyle station—the closest Met Office measuring point to Glasgow—is therefore firmly set at 29.7°C from 30 June 1995. This stands as the definitive historical benchmark for the period 1968 to 2001. If you are planning an outdoor event in June and wondering what the worst-case heat could look like, this is the number: a single day with a maximum of 29.7°C. Any warmer than that, and you are breaking records that have held since the mid-1990s.
Source: Met Office MIDAS data, Aberfoyle station (1968–2001).
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