Allsky RPI running during the night only

[WirthmU]

Since with summer it's getting really hot even here in Switzerland. Therefore my RPI shuts itself down to prevent CPU overheating.
Would it be possible to have with Allsky the option to run it only during the night. So the RPI would shut down itself at sunrise and boot again and running Allsky at sunset?

[EricClaeys]

Allsky itself has no mechanism to turn a Pi off automatically, but you could add a script to the Night-To-Day module flow that waited for the timelapse to finish, then stopped Allsky, then shut down the Pi.
However, I don't know of any way to boot a Pi other than by power cycling it. If the Pi supports wake-on-lan, you could have another machine wake it that way.

Even if you found a way to make that work, I suggest trying to fix the problem causing the Pi to shut itself down.

I never heard of a Pi overheating to the point that it shuts down. Normally, it throttles the CPU down.
I would first try to determine why it gets so hot. People who have a Pi in the desert don't report it shutting down. My Pi in the desert mountains is at 70 C or 160 F and it's throttling.

Does the Pi have a CPU fan, and if so, is it working? If not, can you add one? Or add a fan to the enclosure? Does the Pi have a heatsink, and is it covered in dust?
What color is the enclosure? If it's dark, can you paint it white or temporarily cover it in aluminum foil?
What is the CPU temperature on the WebUI's "System" page?
Is anything running on the Pi other than Allsky?

If you turn off capturing images during the day, Allsky will effectively sleep during the day and take no CPU time. That would be an easy thing to try, and you can still access the WebUI to check on the temperature.

[WirthmU]

I will do further checks for the fan state and cpu temperature.
I just have started the RPI again and it's night - the CPU still is above 90 Degrees Celsius, and of course throttled!

It looks like the fan is running but temperature is unusually highly. There is nothing else running in the pi than Allsky!

I guess it's a problem with the fan. I would need to service the camera.

[EricClaeys]

Yikes!!! You could cook a pizza at that temperature. I'd turn the Pi off until you figure it out. That temperature's going to fry the CPU.
Let us know what you find.

[NiteRide]

@WirthmU - I cant speak for the temperature issue, but if you need the power off/on, one possibility for scheduling physical on/off is WittyPi. This is a hat that you can add which can manage power off and on via a schedule. They have several models, so you would need to research if this is something that you would be interested in trying.
I have not used one of these, but was researching/considering it as part of a potential solar setup (eg where I would want to conserve as much power as possible by powering off during the day)