Is it worth going when raining

No

You will have a better time going when it's not raining. More animals will be out and active.

I went once while it was Raining. A lot of the Animals were out enjoying it but it was a little miserable. Got some Great pics that day of the Elephants and Gorillas. Good luck if you go

No. Best to go on a dry day

Its better to go when its sunny outside. The animals wont really come out when its raining.

No you have a better time when it's clear outside and you don't have to run from rain. Plus animals will probably be more friendly in sunny weather.

I would not recommend but it probably wouldn't be to busy though ?? Try it never know lol.

I wouldn't unless it was extremely light.