Daily sunshine hours observed on 13th May 1982 at 03xxx stations (324 reports).
Date (00Z D to 24Z D)
-1 day
+1 day
Plot hours Plot % of theoretical max
UK only UK & ROI
Highest 10
Levington (22 m, CS)14.0 hours
Faversham (46 m, CS)14.0 hours
Brooms Barn (75 m, CS)13.9 hours
Cavendish (55 m, CS)13.9 hours
Hemsby (13 m, CS)13.8 hours
Lowestoft (25 m, CS)13.8 hours
Boxworth, Samson Field (53 m, CS)13.8 hours
Morley St Botolph (46 m, CS)13.7 hours
Wattisham (89 m, CS)13.7 hours
Cambridge, Niab (26 m, CS)13.7 hours

Lowest 10
Blyth Bridge (253 m, CS)0.4 hours
Delabole (201 m, CS)0.5 hours
Hartland Point (95 m, CS)0.6 hours
Cookstown (77 m, CS)0.8 hours
Lanark (152 m, CS)1.0 hours
Newton Rigg (169 m, CS)1.1 hours
Tenby (5 m, CS)1.3 hours
Brawdy (111 m, CS)1.3 hours
Crawfordjohn (274 m, CS)1.3 hours
Armagh (62 m, CS)1.4 hours

Average Sun = 8.3 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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