"They should be ready by this time but they are not ready — another maybe two-and-half weeks," organic berry farmer George Sidhu told CBC News.
He says over last year's Canada Day long weekend, hundreds of people headed out to the farm to fill their own buckets with blueberries. But the recent weeks of unseasonable cloud and rain have taken their toll.
"But this at the back end is all green," he said. "It should be all blue and here it should be dark blue instead of purple."
Sidhu says all his crops are delayed this year. He believes the blueberries will be good when they eventually ripen, but he is worried about the impact of the delay.
"It's hard to say at this stage, you know, it might be people will be turned off if it's not ready in time."
With more than 800 blueberry growers and more than 8,000 hectares of fields, B.C. is one of the world's largest high-bush blueberry growing regions.
But unless the berries get some solid sunshine in the coming weeks, it could be a sour year.