In December, Saint Petersburg typically sees daytime highs of -2.5°C and overnight lows around -7.4°C. Compared to the annual average high of 8.0°C, December runs -10.5°C.
December in Saint Petersburg averages a daytime high of -2.5°C and an overnight low of -7.4°C.
December runs -10.5°C compared to Saint Petersburg's annual average high of 8.0°C, ranking #10 of 12 months by warmth.
Plan for daytime highs near -2.5°C and cooler evenings around -7.4°C.