In December, Bolu typically sees daytime highs of 4.4°C and overnight lows around -2.8°C. Compared to the annual average high of 13.9°C, December runs -9.6°C.
December in Bolu averages a daytime high of 4.4°C and an overnight low of -2.8°C.
December runs -9.6°C compared to Bolu's annual average high of 13.9°C, ranking #10 of 12 months by warmth.
Plan for daytime highs near 4.4°C and cooler evenings around -2.8°C.