Weather will likely play an important role when you plan your trip to Larsen Bay, but bear in mind that cheaper options are usually available when the weather isn't as good. The hottest months are usually July and August, with an average temperature of 11°C, while the coldest months are March and January, with an average of -1°C. The snowiest months in Larsen Bay are December, February, March and January, with each month seeing an average of 43 cm of snowfall.