Heat Acclimation is bizarrely weirdly useless

I recommend suggesting an improvement to Garmin at Share Ideas | Garmin. In the meantime, as a workaround, simply create a new leg of a multisport activity (by using the function Change Sport), when the temperature rises above 22°C.

Sounds like northern problems... Here the temperature doesn't get below 29C even during the night for weeks...

How would you know? The temperature you see (if you even see) during the ride is not necessarily the temperature Garmin look at. I mean there's the thermometer in the device vs the temperature reported by the nearest weather station. You might be without cell phone during the ride, still afterwards when you sync it Garmin knows what was the temperature from your GPS coordinates.

Also it's not clear what temperature Garmin looks for this. I.e for the badge that you made an activity in the heat (38C+ or 100F+) it doesn't look at the thermometer in the device but (according to someone who posted a few weeks ago in a group) it looks the last weather update beforfe you started the activity, and the 1st weather update after you finished it (it might be in 2 different weather stations I guess) and if both were above then you get the badge.

Add to this that if it uses the local temperature from the device it can change when you enter some "microclimate" (sometimes you feel it's suddenly cold when you pass next to some river with shade, and then you go out to an open fields and you suddenly feel it's hotter)

flocsy🤠 said:

How would you know?

The temperature from the Weather widget is used, so you can see it there.

As for the badges, those do not use the Weather widget temp. They use the temperature reported by the Google API for the starting coordinates at given time. 

Widget? Where do I see a widget during the ride? If there was a datafield, then maybe, but even then I would say that I am supposed to work on my ride during a ride and not looking at temperatures to work around Garmin bugs.

flocsy🤠 said:

Where do I see a widget during the ride?

On the watch. You can open any widget at any time during any activity.

flocsy🤠 said:

I am supposed to work on my ride during a ride and not looking at temperatures to work around Garmin bugs.

You can do whatever you prefer. I am explaining you how you can get the feature working correctly. If you prefer waiting (possibly a few years) that Garmin changes the behavior, you are free to do it. With the suggested workaround, you can get it working correctly today, though.

except if you get to a cooler area, that by the time you realized it screws up the previous leg of your multi-sort activity...

flocsy🤠 said:

that by the time you realized it screws up the previous leg of your multi-sort activity...

It does not. Each leg will be recorded with its own starting temperature. Additionally, if you see that the temperature dropped below 22°C, and do not wish to interrupt the heat-acclimation (which would be actually the right way to do), then you simply continue riding without starting a new leg.

How do you know/think it's only based on the temperature at the time you start? That makes no sense for long rides.