• The Arctic
The average Arctic summer hovers around 0°-10 C in June through September. In general, Arctic summers are short and cool.
• Antarctic
The Antarctic Peninsula is the warmest part of the continent (summer 2019 saw one of the warmest on record, with one research station recording 17.5°C), in general temperatures between 0-+15 C are to be expected. Prepare for at least -5°C and for temperatures to feel much colder than that if there’s a wind chill. January is the warmest month to visit.