Daily sunshine hours observed on 17th September 1953 at 03xxx stations (96 reports).
Date (00Z D to 24Z D)
-1 day
+1 day
Plot hours Plot % of theoretical max
UK only UK & ROI
Highest 10
Penzance, Penlee Gardens (19 m, CS)10.3 hours
Falmouth (51 m, CS)10.1 hours
Scilly: St Marys (51 m, CS)9.6 hours
Torquay, Abbey Park (15 m, CS)9.0 hours
Newquay (53 m, CS)8.9 hours
Baltasound (24 m, CS)8.4 hours
Plymouth, Mountbatten (50 m, CS)8.4 hours
Eastbourne (15 m, CS)7.8 hours
Aldergrove (63 m, CS)7.7 hours
Teignmouth (3 m, CS)7.4 hours

Lowest 10
Fettercairn, Glensaugh No 2 (171 m, CS)0.0 hours
Leadhills (393 m, CS)0.0 hours
Renfrew (8 m, CS)0.0 hours
Paisley (32 m, CS)0.0 hours
Benmore, Forestry School (14 m, CS)0.0 hours
Morpeth, Cockle Park (95 m, CS)0.0 hours
Marchmont (152 m, CS)0.0 hours
Dunbar (23 m, CS)0.0 hours
North Berwick (16 m, CS)0.0 hours
Edinburgh, Royal Botanic Garden No 2 (28 m, CS)0.0 hours

Average Sun = 2.9 hours

*MIDAS UK data available from 1887
*SYNOP data available from 2000
*Background satellite imagery from 25/02/2000

Data courtesy of MetOffice and OGIMET
OpenMIDAS Data - Met Office (2021): MIDAS Open: UK daily temperature data, v202107. NERC EDS Centre for Environmental Data Analysis, 08 September 2021.


Methods for measuring sunshine have changed over time, older records and some climate sites today will use a Campbell-Stokes sunshine recorder, whereas nowadays the majority of measurements will be taken using a pyrheliometer and threshold of 120 W/m^2 for sunshine. The instrumentation used is indicated by the letters in the table - WMO means a pyrheliometer was used, CS means a Campbell-Stokes recorder was used, and S means that the value was extracted from the SYNOP report (most likely to be a pyrheliometer measurement but not for certain). Clicking on an icon in the map will display a popup which also contains this information.

It is possible to convert the newer pyrheliometer measurements to a Campbell-Stokes equivalent for a fairer comparison across time, which is done for climatological purposes, and is a function which I may add to this page at some point.



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