湿度 as "humidity" in general


I'm using materials I found on the Internet to learn grammar points. This
source includes examples, which is really nice, but I reckon there are many
mistakes - mostly typos, but sometimes worse. What worries me the most is
whether or not these sentences 1. are actually grammatically correct, and 2.
sound natural for native speakers.

I came across the following sentence:

> 私が疲れるのは、暑さというよりはむしろ湿度のせいだ。

The translation is (re-translated from French, sorry if the English is not
perfect either):

> Rather than heat, it's more because of humidity that I'm tired.

The reason why I'm asking this question is the use of 湿度 to mean "humidity".
To my understanding, it means "the humidity level", as in "90%", just like 温度
would be used to refer to the actual value in degrees. Is it acceptable to use
it in this case, where I understand "humidity" as a more general concept than
just a figure? Wouldn't 湿気 be more suited?

Also, the grammar point this example accompanies is "というより". Is it natural for
a native speaker to use this construct in this context?

And more generally speaking, does this sentence sound natural? For instance,
could one say "疲れているのは" to insist on the fact that they're tired at this
particulat time?

_Source, in French but for
completeness:<http://jlptgo.com/grammaire/187-japonais-to-iu-yori>_




> 私が疲れるのは、暑さというよりはむしろ湿度のせいだ。

I think it's valid sentence. The author feels tired because of humidity
regularly rather than being directly annoyed by high moisture of the
surrounding air. So,「湿度」fits to the sentence better than「湿気」.

「湿気が多い」could be the reason of your tiredness though, I think it often implies
how annoying your surrounding is such as clothes not getting dry, your foods
getting easily mold, mites get breeding and so on.

Probably the author wants to indicate how humid summer in Japan is comparing
to that of other countries.

[![enter image description
here](https://i.stack.imgur.com/uSOtK.png)](https://i.stack.imgur.com/uSOtK.png)

> _Also, the grammar point this example accompanies is_ "というより". _Is it
> natural for a native speaker to use this construct in this context?_

Yes, I think it's valid and you can omit「むしろ」from the sentence and it holds
the same meaning.

> _And more generally speaking, does this sentence sound natural? For
> instance, could one say_ "疲れているのは" _to insist on the fact that they're tired
> at this particular time?_

I think so. It's valid to switch to "疲れているのは" for that particular moment.

