Every day the couple think about Willsher, Lillie and Jackson but the anniversary of their deaths was still hard, even when they had the impending birth of their new children to look forward to, Mr Weekes said.
"It's been really difficult because for Jane, well for both of us, you get so used to bad news," he said. "Whilst we're really happy you just worry every time that something's going to go wrong.
"You just don't get to fully enjoy yourself because you just don't know what's around the corner.
"It's self-protection. You have yourself prepared just in case something goes wrong."
The squally weather abated briefly while Mr and Mrs Weekes stood with their loved ones on the beach at sunset.
Two of the lanterns were eventually lit and made small journeys before they were extinguished. The wind was too much for the blue lantern to ignite.
Mr Weekes said they felt no closer to finding answers behind the fire that swept through the Villaggio Mall, killing six adults and 13 children.
A memorial was planned for overnight at Aspire Park next to the mall in Doha, where a moment's silence was planned before 19 balloons were to be released.
The blaze has been blamed on an electrical fault, and a court verdict into who was responsible is expected next month.
"We're no further on after a year in terms of knowing what really happened or finding anyone accountable for it," Mr Weekes said.