LocationManager coordinates not available onAppear on Watch app - swiftui

Question

I am programming a watch app based on some functionality of my iPhone app. On the phone, everything is working as intended, but on the watch app, I am getting location data too late. However, I can't figure out what is the correct way of doing it.
My working ContentView looks like this:
struct ContentView: View {
#ObservedObject var locationManager = LocationManager()
#ObservedObject var sunTimeData: SunTimeData
var body: some View {
VStack {
OverView().environmentObject(sunTimeData)
}.onAppear {
self.setLocation()
}
}
private func setLocation() {
sunTimeData.latitude = locationManager.location?.latitude ?? 0
sunTimeData.longitude = locationManager.location?.longitude ?? 0
LocationManager.retreiveCityName(latitude: sunTimeData.latitude, longitude: sunTimeData.longitude) { (city) in
self.sunTimeData.cityName = city ?? "Not found"
}
}
}
This is working fine and passing my location data to the environment object where I can use it in several views.
The Watch app is structured the same way, however, it doesn't obtain location info and just passes 0. If I call the locationManager INSIDE a view (inside a Text() for example), it will work, but as I use this on many different places, I would rather like to pass it to my environment object and go from there.
I tried adding variables above the body, but they are also still 0 at the time of calling. The locationManager starts to update just after rendering the view, it seems.
var latitude: Double {
return locationManager.location?.latitude ?? 0
}
var longitude: Double {
return locationManager.location?.longitude ?? 0
}
I am using the HostingController.swift to have a paginated navigation (swipe between views) and the second page is having the correct location data.
class HostingController: WKHostingController<AnyView> {
override var body: AnyView {
return AnyView(TestView().environmentObject(SunTimeData()))
}
}
class NewHostingController: WKHostingController<AnyView> {
override var body: AnyView {
return AnyView(ListView().environmentObject(SunTimeData()))
}
}
Do I probably have to pass the locationManager to the views, too? Where is my mistake? Could anybody please guide me the right way to do this? Thank you.