I am by no means an expert as only diagnosed Dec 16, however I have noticed trends over the past week. I have since reduced my basal by 1 unit in the morning and it seems to delay hypos. I still get one around 5pm so I shall either prepare for it or reduce basal by another half unit.
I do however keep an eye on the weather forecast in case of any heatwaves or sudden plummets in temperature as I will revert back to my normal basal dose.
It is trial and error, but have you done recent basal testing? This may bring out some info you can work with.