Evapotranspiration Calculations
Pyrenees (Ben Nevis) - July 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) |
|---|---|---|---|---|---|---|---|---|---|
| 01/07/2025 | 0.5 | 0.0 | 5.7 | 2.1 | 99 | 89 | 5.63 | 5.57 | |
| 02/07/2025 | 0.7 | 0.2 | 6.3 | 2.8 | 99 | 79 | 6.43 | 7.81 | |
| 03/07/2025 | 0.7 | 0.2 | 9.8 | 2.6 | 99 | 79 | 3.67 | 9.27 | |
| 04/07/2025 | 1.0 | 0.2 | 9.6 | 3.2 | 98 | 68 | 5.55 | 8.16 | |
| 05/07/2025 | 1.4 | 0.0 | 9.0 | 5.2 | 95 | 64 | 10.19 | 9.70 | |
| 06/07/2025 | 1.0 | 0.2 | 8.9 | 4.6 | 98 | 69 | 5.72 | 6.96 | |
| 07/07/2025 | 0.9 | 0.2 | 11.0 | 5.3 | 97 | 73 | 4.14 | 8.70 | |
| 08/07/2025 | 0.6 | 0.0 | 6.4 | 5.4 | 99 | 82 | 6.64 | 3.96 | |
| 09/07/2025 | 0.4 | 7.4 | 5.4 | 1.4 | 100 | 92 | 5.45 | 5.63 | |
| 10/07/2025 | 0.4 | 10.6 | 6.2 | 1.9 | 100 | 92 | 6.35 | 5.11 | |
| 11/07/2025 | 0.4 | 3.2 | 8.5 | 1.8 | 100 | 94 | 4.76 | 6.02 | |
| 12/07/2025 | 0.6 | 2.4 | 8.4 | 3.8 | 99 | 85 | 4.06 | 7.60 | |
| 13/07/2025 | 0.8 | 0.0 | 8.4 | 4.6 | 100 | 77 | 7.30 | 5.92 | |
| 14/07/2025 | 0.5 | 3.0 | 6.2 | 2.3 | 99 | 88 | 5.16 | 8.39 | |
| 15/07/2025 | 2.8 | 6.7 | 2.4 | 100 | 89 | 2.91 | |||
| 16/07/2025 | 0.4 | 0.2 | 7.1 | 2.7 | 100 | 96 | 3.10 | 5.25 | |
| Totals: | 10.3 | 30.6 |
