Google Norwegian met Office very accurate and comprehensive info 3/4 days out also UK Met Office very accurate 4cast this may help u decide whether to do either/or in Bergen.
we have done both funicular and cable car in Bergen but always independent of ship tours. We have been lucky with weather in Bergen 5 visits only one rain and that last Nov for northern Lights on QM2. Both have been offered by Cunard in the past but in my opinion not worth spending on (unless lots of OBC). Judge the weather on the day.
https://ulriken643.no/en/webcam
https://www.floyen.no/en/webcam
webcams from both locations if look at times u will c ship berths QA likely to be at berth just below hills nearest top middle of wc display
There are 5 tours for our cruise, best of, Oia, Akroritia archaeological site, a basic coach drive and a volcanic hike to the island in the Caldera. All were sold out several weeks ago.
Going there in2 weeks on QV. Do a cunard tour which get you ashore quicker. Avoids cable car as it goes to new port which has road access
If first time either do best of tour or one that goes to Oia. You will be dropped off in Fira with a complimentary cable car ticket.Dont wail down lots of donkey