What does the girl mean when she says the sun is howling outside? How should I reply?

Your question is.

The girl said she wouldn't come out to bask in the sun.

What do you mean,

How should I reply?

First of all, this should be a southern girl,

When she said sunbathing, she meant it was too sunny outside.

So I don't want to come out.

You can tell him,

I'll bring you an umbrella,

I'll put a sun hat on you

Or I can drive to pick you up.

Or simply buy him a sunshade fisherman's hat.

See if he accepts,

If I receive the certificate, I still have feelings for you,

If you refuse to accept anything, it's probably over.