Waikato, New Zealand · population 152,641 · 22 weather stations within 200 km · records 1853 to 2025
Hamilton has an average annual daytime high of 19.0°C, based on the 1951 to 1980 baseline. Its warmest month is February, when highs typically reach 24.6°C, and its coldest is July, with overnight lows near 3.2°C.
These figures reflect annual averages, not single-day records. Daily observations are outside this dataset's precision.
Since 1900, Hamilton's average temperature has risen by +1.8°C. Compared to the earliest station records that begin in 1853, warming totals +1.6°C.
20-year smoothed annual temperature reconstructed from station anomalies. Dashed line: 1951–1980 baseline.
Daytime highs sit within a comfortable 15°C to 26°C range.
Hamilton's average annual daytime high is 19.0°C, based on the 1951 to 1980 baseline period. The warmest month is February, with highs averaging 24.6°C, and the coldest is July, with lows averaging 3.2°C.
February is the warmest month in Hamilton, with typical daytime highs of 24.6°C.
2021 is the hottest year on record for Hamilton, running +1.6°C above the 1951 to 1980 baseline.
Yes. Since 1900, Hamilton has warmed by roughly +1.8°C.
January to December typically offers the most comfortable daytime highs, in the 15°C to 26°C range.
Baseline period 1951 to 1980. Monthly averages are the mean of station observations weighted by proximity. Warming trend is the 20-year smoothed anomaly against that baseline.