Spray, harvest and irrigate in the right window
Farm work runs on narrow weather windows. weatherAI.io finds them for spraying (drift and wash-off), harvesting and haymaking (dry crop, low humidity) and irrigation (low wind, no rain on the way), and can alert you when a window opens.
What you can do
- Find spray windows with a steady light breeze and no rain soon after
- Pick dry, low-humidity days for combining and haymaking
- Water when wind is low, no rain is coming and evaporation is small
- Get an alert when the next good spraying window appears
Activities in this pack
Crop spraying
activity=crop-spraying · windows of 2 h or moreSpraying crops: a light, steady breeze (about 3 to 15 km/h; dead calm risks drift in an inversion), no rain soon after, not hot. Always follow the product label.
Harvesting and haymaking
activity=harvesting · windows of 5 h or moreCombining, baling and haymaking: a dry crop and dry ground. No rain, low humidity (dew and damp grain), a breeze helps; storms stop work.
Irrigation and watering
activity=irrigation · windows of 2 h or moreIrrigating crops, lawns and sports pitches: little wind (drift), no rain on the way (wasted water), and cool hours with weak sun (less evaporation). No watering near freezing.
Drone flying
activity=drone-flying · windows of 1 h or moreShort flights in daylight: low wind and gusts, no rain or snow, good visibility, batteries above about 5°C. Always follow local drone rules.
Outdoor work (building sites, landscaping, events crew)
activity=outdoor-work · windows of 4 h or moreA shift outdoors: heat stress first, then storms, cold, ice and heavy rain.
Questions it answers
curl -H "X-API-Key: wai_..." "https://api.weatherai.io/v1/best-day?location=Norwich&activity=crop-spraying&days=7"
curl -H "X-API-Key: wai_..." "https://api.weatherai.io/v1/decide?location=Shrewsbury&activity=harvesting&when=tomorrow"
curl -H "X-API-Key: wai_..." "https://api.weatherai.io/v1/decide?location=Fresno, CA&activity=irrigation&when=today"
Your own limits, alerts and a widget
Custom rule example
Our sprayer label: wind 3 to 12 km/h, chance of rain at most 20%, air at most 25°C, daylight only, at least 2 hours.
Save it once in your dashboard (or with POST /v1/profiles), then call /v1/decide?profile=prf_…. Any hour that breaks a limit scores 0.
Alerts
Watch a site for the next days. When a day turns from go to no-go (or back) we email you and/or POST a signed webhook to your system.
Checks every 1, 3, 6 or 12 hours are free; each notification costs one call.
Website widget
Put the outlook on your own site, using any activity in this pack or your own custom rule.
One call per refresh, at most 48 a day. How it works
Start free: 1,000 calls a month What it costs
weatherAI.io is a planning aid. Always follow equipment, product and safety limits, and check conditions on site.