Climate in Hamilton

Hamilton, New Zealand has a oceanic climate. The annual average temperature is about 18.4°C and the city receives roughly 1100 mm of precipitation across 184 rainy days a year, with around 729 hours of sunshine. The warmest month is Jan (highs near 26.3°C) and the coldest is Jul (lows near 10.6°C). These are deterministic, latitude- and region-based planning estimates — not a forecast or measured station data; check current conditions with an official meteorological service before travel.

Data year 2025; last updated 2026-05-16.

Hamilton is classified as Oceanic. This reflects its annual temperature range and the seasonal pattern of its rainfall.

Hamilton receives about 1100 mm of precipitation a year over roughly 184 rainy days. The wettest month is Jun and the driest is Dec.

Hamilton sees an estimated 729 hours of sunshine a year, concentrated in the warmer months around Jan.

By temperature and rainfall, the most comfortable months in Hamilton are Nov, Oct, Dec. Conditions vary year to year — verify with a current forecast before booking.

Hamilton has a climate comfort score of 82/100, a very comfortable year-round climate by this measure. The score weights mild temperatures most, then rainfall balance, sunshine, low seasonality, and the absence of extreme winter cold or summer heat.