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Len
May 24, 2026, 4:59:34 PMMay 24
to Weather and Climate
Max today 27.6°C.
Previous May max was 27.4°C on 3rd May 1990.
Record will be broken again
tomorrow
according to Met Office.
As Graham points out, there is a discrepancy between the Met Office's forecasts and those on the BBC website.
Wembury forecast Max temps.:
Monday Met Office 29°C, BBC 24°C
Tuesday Met Office 31°C BBC 24°C
One can only assume the guys at BBC Meteogroup are going for a sea breeze.
It is a fine line.
BBC had 22°C for today! 5 deg.C error
MetOffice had 26°C. 1 deg.C error
Len
Wembury
SW Devon Coast
Graham Easterling
May 25, 2026, 4:10:17 AMMay 25
to Weather and Climate
We did have a very light breeze off the sea yeasterday for a while, but it had virtually no affect on the temperature. Clearly not a real sea breeze, it probobably drifted offshore at Marazion then along the coast. I won't quote exact maximum for yesterday, as I no longer have a Stevenenson screen (since January), but it was almost certainly between 24 & 25C. (BBC forecast was 21C, MetO 24C)
Todays BBC forecast for today is 22C. It's already reached that. MetO now forecasting 28C for tomorrow. I see Camborne's minimum was 18.5C last night - I suspect that's a record for May. It will be my warmest May day on record today (99% cofidence!)
Graham
Penzance
Graham Easterling
May 25, 2026, 9:02:41 AMMay 25
to Weather and Climate
25.7C on the cliff top at Lands End, 26C Lands End Airport, 28C St Mawgan Newquay, all new May records. I suspect you're around 29C Len?
Graham
Penzance
Nick Gardner
May 25, 2026, 1:11:20 PMMay 25
to Weather and Climate
Yesterday (24th May) was hotter with a max of 29.4°C. A strong breeze blowing from the east kept things stirred up somewhat over yesterday's stifling, calm conditions with the maximum today being 28.6°C.
I was looking back at my data for hot spells in May and it seems they are more common than I thought. The biggest surprise was my previous highest May temperature which occurred on the 24th May 2010 with 29.1°C. That one passed my memory by where the temperature exceeded 25°C on five consecutive days (21st - 25th).
What has been extremely unusual for so early in the summer has been the high dewpoints which have topped 20°C today and yesterday. May is not normally known for its high humidity and has made this hot spell rather 'sticky' at times (as my gran would have said).
And the high humidity & temperatures, especially at night have been warming the sea up remarkably quickly.
Nick
Otter Valley, Devon.
Graham Easterling
May 26, 2026, 5:12:41 AMMay 26
to Weather and Climate
It's staggering the degree (no pun intended!) to which May records are being shattered on the tip of Cornwall.
Bearing in mind that my 34 year May record was 24.4C (the sea used to be very cold in May - the SST was 19C at the Penzance buoy yesterday under a warm patch) the temperature at both Newquay & Lands End cliff top airports was 27C at 09:20!! I no longer have a Stevenson Screen, sadly, so I'm reluctant to give any temperatures from my site, though I can confidently say the record would be absolutely shattered.
Locally the MetO temperature forecasts have been excellent, several days out, with one exception, Scilly. I strongly suspect their grid location is over the sea, they've had repeated problems with it in the past.
Current MetO forecast maximum is just 17C, that's colder than it currently is at nearby wave buoys and Sevenstones off Lands End. The forecast for 10:00 & 11:00 is 15C. St Mary's airport, about the highest, most exposed & windblown spot on the Islands, was 20C at 09:00.
Graham
Penzance
Len
May 26, 2026, 11:16:38 AMMay 26
to Weather and Climate
Screen Maxes in Wembury
Saturday 27.6
Sunday 30.0
Today 31.1
Incredible!
The so called heat dome has been so strong and eliminated any chance of a sea breeze.
The easterly gradient wind has persisted even though it is just a breeze.
Met office forecasts have been very good.
What has happened with BBC Meteogroup forecasts? Giving maxes of 24C each day.
Len
Wembury
Len
May 26, 2026, 11:18:39 AMMay 26
to Weather and Climate
Sorry my maxes should have read
Sunday 27.6
Monday 30.0
Today 31.1
Graham Easterling
May 26, 2026, 11:51:15 AMMay 26
to Weather and Climate
BBC have been dreadful. Take a look at DBs latest video forecast here https://www.bbc.co.uk/weather/2640377
He actually said only 17C in the far SW tomorrow. Speaking as somebody on the tip of Cornwall I suspect he'll be a bit out!! The SST is currently an incredible (for May) 20.2C at the Penzance buoy, 18.3C - with still quite a large swell stirring things up at Perranporth.
Camborne currently 30C. Max approx 29C in Penzance - > 4C above my pre 2026 May record.
Graham
Penzance
On Tuesday, 26 May 2026 at 16:16:38 UTC+1 Len wrote:
Graham Easterling
May 27, 2026, 4:13:08 AMMay 27
to Weather and Climate
Newquay clifftop airport 26C @ 8:50 - Warmest place in the UK according to XC weather.
With a F3-4 E gradient wind at the moment, Penzance should be a bit cooler today, not sure about Wembury.
Lots of lightning off Scilly overnight, and off Lands End around 06:30
Video on Scilly lightning quite frequent
Graham
Penzance
Len
May 27, 2026, 6:33:43 AMMay 27
to Weather and Climate
Line of thunderstorms affecting us atm.
Impressive thunderclaps and intermittent rain with some hail.
Temperature drop to 23°C.
That's more bearable.
Len
Wembury
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