If you size your solar hot water also known as thermal storage tank correctly you can easily store the heated water overnight and it will be plenty hot enough to provide comfortable showers or clothes laundering water.
Diy thermal storage tank.
Bigger is not always better but certainly better for tanks.
The answer is a thermal store.
Build a solar hot water tank for that heated water and enjoy it the next morning too.
A larger water storage tank keeps its water warm because the property of a considerable time is called thermal inertia.
The biggest advantage of diy water storage tank over commercial equipment is that you can expand the storage tank size without spending much money.