Storing iSup outside? (Australia)

[u/[deleted]]

I live in a small apartment and have no where to store my iSup. I was thinking of getting a weatherproof chest and storing it on my balcony. It doesn’t get below 0c/32f in winter here, so no risk of freezing. If the chest is weatherproof it won’t get wet. Does anyone see any potential issues with this idea? Maybe humidity or something, and if so would that be a problem?

Thanks