We use the Open-Meteo API. For the Past 4 Days, it uses ERA5 reanalysis data. For the Forecast, it uses high-resolution atmospheric models.
ET0 stands for Evapotranspiration. It is the total amount of water lost from your soil and grass due to sun, temperature, and wind.
Data is calculated on a high-resolution grid (approx. 2km to 11km). Your own rain gauge is the only 100% perfect measurement!
Between 5 AM and 9 AM is optimal to minimize evaporation and prevent fungal diseases.
Weather is localized. We need coordinates to fetch precise deficit data. We don't store your location.
Common in smaller backyards. Emit a constant fan-shaped mist.
Best for: Small, narrow areas.
Downside: High precipitation rate; mist easily blown by wind.
Brands: Toro, Hunter (PSU), Rain Bird (1800).
Slowly rotate a solid stream. Multi-stream nozzles (MP Rotators) are the AU gold standard.
Best for: Medium to large lawns and slopes.
Benefit: Applies water slowly, allowing clay soils time to soak.
Brands: Hunter (PGP/MP Rotator), Rain Bird (5000).
Iconic "tick-tick-psshhh" sound. Pop-ups or hose spikes.
Best for: Large open areas, bore water, and wind.
Benefit: Heavy droplets cut through wind. Tolerant of "dirty" water.
Brands: Pope, Rain Bird, Hoselink.
Should I water today?