In February, Koshigaya typically sees daytime highs of 10.0°C and overnight lows around 0.0°C. Compared to the annual average high of 19.6°C, February runs -9.6°C.
February in Koshigaya averages a daytime high of 10.0°C and an overnight low of 0.0°C.
February runs -9.6°C compared to Koshigaya's annual average high of 19.6°C, ranking #11 of 12 months by warmth.
Plan for daytime highs near 10.0°C and cooler evenings around 0.0°C.