Evapotranspiration Calculations

Pyrenees (Ben Nevis) - December 2025 daily calculations

DateEvapotrans-
piration (mm) 0000- 2400
Rain (mm) 0900- 0900Pan Evaporation (mm) 0900- 0900Max TempMin TempMax Rel Hum (%)Min Rel Hum (%)Average 10m Wind Speed (m/sec)Solar Radiation (MJ/sq m)
01/12/20252.54.6 11.03.799677.2921.16
02/12/20253.23.0 15.43.899584.3621.76
03/12/20256.30.0 24.95.789273.9431.18
04/12/20257.90.0 28.912.478155.7824.94
05/12/20257.70.0 27.812.662194.7829.79
06/12/20252.20.6 12.79.699535.798.37
07/12/20254.64.4 16.62.596395.3430.66
08/12/20255.70.2 23.15.270363.5830.03
09/12/20255.20.0 19.28.599374.6231.10
10/12/20254.00.0 17.29.375314.5314.01
11/12/20256.70.0 22.39.154224.8129.84
12/12/20257.20.0 27.113.281225.0228.77
13/12/20255.80.8 26.215.083315.1319.19
14/12/20254.61.6 16.76.996377.6525.02
15/12/20254.10.0 13.93.497486.8131.43
16/12/20256.00.0 21.64.094153.5632.15
17/12/20257.30.0 30.810.246122.5831.84
18/12/20259.70.0 35.020.931124.1332.19
Totals:100.715.2       

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