Much more appropriate for dry climates, challenging to make work in wet or even humid ones. Not impossible, but challenging.
Righto.
Far and away the biggest challenge with straw bale construction is controlling moisture intrusion: rain, sub-surface and surface water, humidity. Even have to give some consideration to the possibility of springing a plumbing leak.
Basically, if the bales get really wet, your house is toast. Block or frame construction homes can be dried, if caught and reacted to quickly enough.