Currently, TurfTracker is optimized for Australia only. Weather data and grass variety recommendations are specifically calibrated for Australian climates.
We subtract any Rainfall from the Evapotranspiration (ET0). If the grass lost more water than it gained, that gap is the "Water Needed". We then adjust this based on your Sprinkler Efficiency (how much water actually hits the roots vs evaporating in the air) to give you the final runtime.
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?