Harvest is set to begin today and is one of the earliest starts according to local Agronomist Simon Teakle.
In an interview with ABC, Mr Teakle said the early harvest was due to a warm, dry winter.
"A lot of the canola was obviously sown up here on, or some of it, before ANZAC Day, so it germinated on ANZAC Day and we've had what I would call a pretty warm winter and it's ready probably two, three weeks earlier than you would expect," Mr Teakle told ABC.
"Generally speaking, it was always the first week of October when you would start to get a few deliveries and that very top end of the northern ag region would start to have a go at canola and barley - if they were growing barley - but never ever this early.
"I think most growers are prepared that they are going to have probably the earliest harvest they've ever had."
Grain handler Cooperative Bulk Handling (CBH) Geraldton Port Zone Manager Duncan Gray, says the Geraldton port terminal will open tomorrow, Tuesday morning, at 8am.