Can I sweep graves in rainy days in Tomb-Sweeping Day?

I think it is ok to go to the grave on rainy days for the following reasons:

There are many rains during the Qingming Festival, which was originally the rainy season.

Grave-sweeping is our descendants' mourning for our ancestors. Grave-sweeping is a concrete manifestation of carefully pursuing the distance, caring for the family and showing filial piety.

When sweeping the grave, we went to the place where our ancestors rested to pay homage, presented a bunch of flowers, presented solemn etiquette, and also offered our sincerity and gratitude. The most important thing is that we have a grateful heart.

We also go to the grave on rainy days, which shows that our piety is more about respect for our ancestors.

So I think rain can sweep the grave!