Weather is probably a major factor when you plan your trip to Sitka, but bear in mind that cheaper options are usually available when the weather isn't as good. The hottest months are usually August and July, with an average temperature of 12°C, while the coldest months are February and March, with an average of 0°C. The snowiest months in Sitka are February, December, January and March, with each month seeing an average of 25 cm of snowfall.