Translation:Paris is nice in May, in general.
I feel that the "in general" at the end of the answer is rather clunky usually when making such a generalisation one would start the Sentence with the word generally.
Placement of in general is uncomfortable There are 2 better options In general Paris is .... and Paris is generally more pleasant .....
I tried "In general, Paris is pleasant in the month of May" but that wasn't accepted. I agree with all the comments complaining about placing the phrase "in general" at the end of an English sentence.
Is there any reason this sentence is not simply Paris est agréable en mai, en général?