CLIMATE

In general, the best time to visit is May-September, when the day temperatures are in the 70s-90s F/23-35 C, and nights are in the 50s-70s F/10-23 C. Spring and early autumn, however, are unpredictable: Snow flurries and temperatures in the mid 20s F/-5 C are possible in May and September. Be sure to take waterproof shoes for spring or autumn visits - there's a lot of mud.

Winter
Dressing in layers of light clothing, rather than bulky, heavy clothes tends to be most effective. The clothing should minimise the amount of exposed skin, particularly to susceptible areas including ears, nose, fingers, and toes. Make sure to protect your hands, feet and head. You should try and keep your clothing and skin dry, because wet skin freezes more rapidly. If your clothing or shoes get wet, seek shelter immediately and allow the wet articles to dry or change into a dry set of clothing.

A winter clothing checklist:
- Thermal underwear, synthetic
- Insulating clothing (wool sweater, long-sleeve polyester or fleece shirt, wool pants) 
- Waterproof, windproof, breathable jacket 
- Hat, wool
- Scarf 
- Mittens
- Waterproof, breathable boots
- Socks.

Spring/Autumn
Things start cooling down in autumn and the fall months are quite cold and chilly with temperatures coming down to around 2ºC. Springtime is a pleasant time during which to visit St Petersburg, although it does tend to rain a fair bit, so if you are travelling in the spring months, be sure to pack a raincoat and an umbrella!