I'm not certain of the exact temp it can operate at but most phones do have a a safety feature built in that will alert you if the phone or battery temp gets to high and will usually power down in this situation to prevent damage.
Min/Max Temperature specifications may be in one or more of these documents. I looked in the Safety Guide since it was the smallest document. The Safety Guide states Min/Max to be from 5-35c. SM-N9005 - DOWNLOADS | SUPPORT | SAMSUNG UK