What December feels like in Hamilton
December is early winter in Hamilton, although winter here means mild days rather than cold ones. Afternoons are mild and comfortable for most people in light layers. There is little difference between day and night: nights stay mild, and evenings feel much like the afternoon. Moist air is typical, yet it seldom feels heavy at this time of year.
Rain in Hamilton in December
It is a changeable month: rain comes about one day in 3, with dry spells in between. A rainy day brings about 8.5 mm (0.3 in) on average — steady rain rather than a passing shower. Across the year Hamilton averages about 8.6 mm per rainy day, so December is typical. It is among the three driest months of the year.
How December compares to the rest of the year
Ranked by average high, December comes out as the 5th coolest month in Hamilton. Compared with November, afternoons are 1.7°C (3.1°F) cooler, with 31 mm less rain. January is cooler again. The next month's average high: 19.8°C (67.6°F).
Who December suits
- Sightseeing: a good fit — comfortable enough to explore on foot all day.
- Parks & outdoor: a good fit — comfortable for long walks and picnics.
Tips for visiting Hamilton in December
Rain Protection
A packable rain jacket saves the day on showery afternoons.
Sunglasses
Plenty of sun, so bring sunglasses and a cap.
Quick questions
How warm is Hamilton in December?
Afternoons average 21°C (69.8°F) and nights about 18.9°C (66°F) — mild by most people's standards. It is the 5th coolest month of the year.
Does it rain a lot in Hamilton in December?
It does: about 11 rainy days bring roughly 94 mm, so plan some indoor options.
What should I wear in Hamilton in December?
The numbers point to rain protection and sunglasses. Evenings feel similar to the day, so the same clothes work from morning to night.
Is December or January better for visiting Hamilton?
December scores better on our climate ranking (#4 of 12 vs #9), rated Good against Good. January is cooler and has more rainy days.
