In October, Portsmouth Heights typically sees daytime highs of 21.3°C and overnight lows around 10.6°C. Compared to the annual average high of 20.6°C, October runs +0.8°C.
October in Portsmouth Heights averages a daytime high of 21.3°C and an overnight low of 10.6°C.
October runs +0.8°C compared to Portsmouth Heights's annual average high of 20.6°C, ranking #6 of 12 months by warmth.
Plan for daytime highs near 21.3°C and cooler evenings around 10.6°C.