Evapotranspiration Calculations
Pyrenees (Ben Nevis) - November 2025 daily calculations
| Date | Evapotrans- piration (mm) 0000- 2400 | Rain (mm) 0900- 0900 | Pan Evaporation (mm) 0900- 0900 | Max Temp | Min Temp | Max Rel Hum (%) | Min Rel Hum (%) | Average 10m Wind Speed (m/sec) | Solar Radiation (MJ/sq m) |
|---|---|---|---|---|---|---|---|---|---|
| 29/10/2025 | 4.1 | 0.0 | 18.4 | 5.1 | 72 | 38 | 2.77 | 23.91 | |
| 30/10/2025 | 5.5 | 0.0 | 20.7 | 9.4 | 63 | 35 | 5.90 | 24.20 | |
| 31/10/2025 | 2.8 | 1.6 | 15.2 | 9.9 | 99 | 40 | 4.55 | 11.40 | |
| 01/11/2025 | 4.4 | 6.6 | 20.8 | 9.2 | 98 | 53 | 3.69 | 27.43 | |
| 02/11/2025 | 5.9 | 0.0 | 27.1 | 14.3 | 98 | 31 | 5.35 | 21.84 | |
| 03/11/2025 | 2.0 | 13.0 | 12.5 | 5.0 | 100 | 67 | 5.41 | 11.94 | |
| 04/11/2025 | 1.5 | 2.8 | 8.5 | 3.4 | 99 | 82 | 4.95 | 12.39 | |
| Totals: | 26.2 | 24.0 |
