I jumped to 5W-30 because Toyota doesn't recommend 0W-30 for use anywhere.
Here's the chart most reference when talking about oil recommendations for ROW applications:
View attachment 3261610
My read on this is that 0W-20, 5W-20, and 5W-30 are OK for general use anywhere colder temperatures may be experienced.
Note that 0W-30 is not in the chart.
I'm sure there are many "oil gurus" out there who may defend 0W-30, but if it's not in writing from Toyota, I don't trust it.
Of course, your vehicle - use whatever makes you feel good.
HTH