Condensation is a result of humidity and warm air meeting cold surfaces.

The answer to your question is yes.

It sounds like you need to replace your windows with double paned windows.

It's not that simple. If the humidity in the home is too high, insulated windows will also "sweat". They will definitely help your heat loss situation. Start with an inexpensive hygrometer to measure the humidity in your home. Ventilation (opening windows, using fans when cooking and bathing) is also important but start with checking the humidity.

Yes, along with drapes and lack of circulation. What is the rH in the home now and what kind of exterior temps are we talking about?

Yes. Aluminum is conductive and will generally be colder than its vinyl, wood, and composite counterparts. In cold climates, it really shouldn't even be a consideration IMO.

With that said, the other comments above about the amount of humidity in the home and circulation should be considered too. If you are in a more moderate climate, you may be able to reduce or eliminate the condensation by getting the moisture in your home under control. The comment about drapes and circulation is the simplest solution if that is applicable.

Hi I have a hygro on order, temp outside in about 5 C (this is an american website isnt it so 40 F) and inside there are cold spots in the corners of the windoes with what feels like drafts. I suppose highly conductive old aluminium windows with added coldness from draughts is what I suspect. The windows need changing anyway so we will get a qoute for that. In regards to moisture my wife will often hang wet clothes on radiators so I might get her to stop that for a day or so to see if its any better.

Do you have a fan that you could run at night. At a previous cabin, (Northern California) temps would be under 40 F, inside would be above 60F, in the morning the windows, channels and sills would be wet. I tried desiccants, fans, window coverings.

in those days, there was a DIY window covering: double back tape, shrink wrap plastic. That combination created “double pane” windows.

as a temp solution, create double pane windows, use visqueen stapled to a wall if necessary. Run a small fan to move air.

i had water damage to a wall at the old cabin due to inside condensation. Water filled the window channel, but the exit was clogged, water seeped into the inside wall.

they are already double pane but on some of the windows the condensation is between the panes so the seals are obviously broken and I imagine the others arent in a much better state