Evapotranspiration Calculations
Merriwa (Roscommon) - August 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) |
| 01/08/2026 | 2.1 | 0.0 | | 17.7 | -1.5 | 98 | 42 | 2.39 | 13.98 |
| 02/08/2026 | 1.7 | 0.2 | | 18.6 | 2.6 | 98 | 47 | 1.29 | 12.92 |
| 03/08/2026 | 1.7 | 0.2 | | 19.5 | 2.9 | 97 | 53 | 2.04 | 9.54 |
| 04/08/2026 | 2.7 | 0.2 | | 18.2 | 1.9 | 98 | 33 | 3.73 | 14.35 |
| 05/08/2026 | 2.4 | 0.0 | | 15.3 | -0.6 | 92 | 40 | 3.88 | 14.45 |
| 06/08/2026 | 2.0 | 0.0 | | 15.1 | -2.5 | 95 | 40 | 2.70 | 12.88 |
| 07/08/2026 | 2.5 | 0.0 | | 17.6 | -2.6 | 96 | 38 | 3.15 | 14.66 |
| 08/08/2026 | 2.1 | 0.0 | | 18.1 | -2.6 | 97 | 35 | 1.74 | 14.73 |
| 09/08/2026 | 1.0 | 0.0 | | 14.5 | 2.6 | 97 | 77 | 1.71 | 6.77 |
| 10/08/2026 | 2.6 | 10.2 | | 14.0 | 6.7 | 93 | 50 | 9.81 | 10.58 |
| 11/08/2026 | 2.7 | 0.2 | | 16.8 | 10.0 | 94 | 48 | 6.10 | 11.91 |
| 12/08/2026 | 2.6 | 0.0 | | 17.0 | 6.1 | 92 | 47 | 5.29 | 11.52 |
| 13/08/2026 | | 0.4 | | | 6.2 | | | | 15.28 |
| 14/08/2026 | | | | | | | | | 15.56 |
| 15/08/2026 | 2.3 | | | 19.1 | -0.5 | 98 | 48 | 2.51 | 15.08 |
| 16/08/2026 | 1.6 | 0.0 | | 15.6 | 4.3 | 98 | 66 | 3.87 | 8.90 |
| 17/08/2026 | 2.3 | 0.2 | | 17.2 | 7.6 | 97 | 57 | 5.06 | 11.51 |
| 18/08/2026 | 2.5 | 0.0 | | 19.1 | 7.6 | 97 | 53 | 4.46 | 12.45 |
| 19/08/2026 | 2.8 | 0.0 | | 20.7 | 10.2 | 93 | 39 | 2.74 | 15.10 |
| 20/08/2026 | 2.2 | 0.0 | | 21.5 | 2.8 | 98 | 45 | 1.76 | 12.83 |
| 21/08/2026 | 1.6 | 0.0 | | 16.7 | 8.3 | 95 | 68 | 3.14 | 7.72 |
| 22/08/2026 | 2.9 | 3.2 | | 19.2 | 11.4 | 96 | 47 | 3.95 | 15.88 |
| 23/08/2026 | 2.7 | 0.2 | | 21.0 | 1.1 | 98 | 47 | 2.49 | 16.77 |
| 24/08/2026 | 2.6 | 0.2 | | 23.5 | 4.4 | 98 | 37 | 1.48 | 15.37 |
| 25/08/2026 | 1.3 | 0.0 | | 17.7 | 6.7 | 97 | 72 | 2.54 | 5.22 |
| 26/08/2026 | 2.7 | 21.6 | | 21.0 | 12.4 | 98 | 50 | 3.00 | 14.32 |
| Totals: | 53.6 | 36.8 | | | | | | | |
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