Evapotranspiration Calculations
Pyrenees (Ben Nevis) - July 2026 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) |
|---|---|---|---|---|---|---|---|---|---|
| 01/07/2026 | 0.7 | 7.8 | 9.3 | 7.0 | 100 | 83 | 7.23 | 6.63 | |
| 02/07/2026 | 0.3 | 12.4 | 6.1 | 5.3 | 100 | 100 | 6.02 | 3.26 | |
| 03/07/2026 | 0.3 | 7.0 | 7.0 | 2.3 | 100 | 100 | 6.71 | 5.69 | |
| 04/07/2026 | 0.3 | 5.4 | 5.0 | 3.3 | 100 | 100 | 5.76 | 5.32 | |
| 05/07/2026 | 0.6 | 0.4 | 6.0 | 2.4 | 100 | 85 | 5.51 | 8.58 | |
| 06/07/2026 | 1.2 | 0.0 | 10.5 | 2.9 | 92 | 64 | 5.04 | 9.80 | |
| 07/07/2026 | 1.1 | 0.0 | 10.4 | 4.8 | 87 | 47 | 2.37 | 9.85 | |
| 08/07/2026 | 1.1 | 0.0 | 10.4 | 4.3 | 87 | 59 | 2.96 | 9.90 | |
| 09/07/2026 | 1.1 | 0.0 | 10.7 | 4.2 | 93 | 48 | 2.58 | 9.95 | |
| 10/07/2026 | 0.9 | 0.0 | 10.2 | 3.3 | 99 | 69 | 3.44 | 8.00 | |
| 11/07/2026 | 0.5 | 0.2 | 8.7 | 5.1 | 100 | 90 | 6.64 | 5.17 | |
| 12/07/2026 | 0.3 | 13.2 | 7.1 | 2.1 | 100 | 100 | 3.36 | 3.83 | |
| 13/07/2026 | 0.3 | 10.8 | 7.9 | 2.7 | 100 | 100 | 3.73 | 4.66 | |
| 14/07/2026 | 0.7 | 2.8 | 8.3 | 5.0 | 100 | 84 | 6.01 | 6.76 | |
| 15/07/2026 | 0.5 | 0.8 | 7.4 | 2.7 | 99 | 90 | 6.03 | 8.84 | |
| 16/07/2026 | 1.7 | 0.6 | 11.1 | 3.3 | 100 | 36 | 4.19 | 8.12 | |
| 17/07/2026 | 1.5 | 0.0 | 12.3 | 4.4 | 88 | 25 | 2.30 | 10.45 | |
| Totals: | 13.1 | 61.4 |
