Planning for the weather is a good way to make your trip to Sandy Hook relaxing and enjoyable, especially when you’re splurging. The hottest months are usually July and August, with an average temperature of 17°C, while the coldest months are February and January, with an average of -12°C. The snowiest months in Sandy Hook are March, January, April and February, with each month seeing an average of 25 cm of snowfall.