It all depends on humidity. I used to live in the US South where humidity would be >90% and 78F is unbearable. I live in Colorado now and the humidity here barely goes above 10-15% and the same temp is way more comfortable.
The air conditioner acts as a dehumidifier, so 26°C is nice, but you must change the water deposit of the AC quite frequently.
[0] https://weatherspark.com/y/3561/Average-Weather-in-Boulder-C...
https://forecast.weather.gov/MapClick.php?textField1=40.02&t...
Currently 14% humidity in Boulder, CO.
Hah, I'm right! In Tallahassee right now it's 82°F and 81% humidity, with a dew point of 76°F. At 5am tomorrow morning the temp will be down to 78°F. If you're out that early there will likely be fog in the low spots.