Temperatures are likely to remain below or around zero so plenty of warm layers will still be necessary but days will be bright and clear meaning photographs of the tundra and sea will be magnificent.
The weather and ice conditions will determine the day-to-day activities available to you, so it is important to be flexible but with unpredictability comes great excitement!
Despite temperatures remaining low during this month, the sun can still be powerful and with reflections off the snow and ice sunburn can be common. Try to avoid this by using plenty to sun cream, particularly on your face.