Weather in Hamilton in December 2025
- December is usually the driest month of the year in Hamilton
Average weather
Average temperature in Hamilton in December
The expected average maximum temperature in December is +70°F with a maximum of +77°F and a minimum of +57°F.
The average maximum temperature goes down 9% by the end of the month, compared with the beginning of the month, from +70°F to +68°F.
Is Hamilton warm or cold in December?
Hamilton is typically mild in December.
Maximum temperatures go down compared to the previous month from +72°F to +70°F. The minimum temperature also goes down from +68°F to +64°F.
Pack a light jacket as it will be warm in the day and cool in the evenings.
Take a look at how December is compared to other months in Hamilton:
Climate in Hamilton in December
| November | December | January | ||||
|---|---|---|---|---|---|---|
| Avg. temperature | ||||||
| +72°F | +70°F | +66°F | ||||
| Min. temperature | ||||||
| +57°F | +55°F | +50°F | ||||
| Max. temperature | ||||||
| +81°F | +77°F | +75°F | ||||
| Rainfall | ||||||
| 97 mm | 97 mm | 114 mm | ||||
| Wind | ||||||
| 6 m/s | 6 m/s | 7 m/s | ||||
| Humidity | ||||||
| 72% | 71% | 72% | ||||
| Air pressure | ||||||
| 1018 HPa | 1019 HPa | 1018 HPa | ||||
| Sunny days | ||||||
| 1 | 0 | 1 | ||||
| Cloudy days | ||||||
| 11 | 12 | 10 | ||||
| Rainy days | ||||||
| 18 | 18 | 21 | ||||
| Snowy days | ||||||
| 0 | 0 | 0 | ||||
December weather is still as good as in November. It’s getting colder in December. From +72°F in the day, the average maximum temperature lowers to +70°F. The rainfall amount in December stays the same as in the previous month with a 97 mm of total precipitation. It feels drier, as humidity decreases from 72% to 71%. The average wind speed doesn’t change much during December, staying around 6 m/s. The days becoming less sunny, going from 1 sunny days in November to 0 in December.
January brings much the same weather, it remains good.
Wind
The average wind speed is 6 m/s getting up to 12 m/s which is a medium breeze. You can feel it, especially getting out of the water.
The average wind speed in Hamilton is gradually increasing during December, going from 2 m/s to 7 m/s over the course of the month.
Rain
How was the weather last December in Hamilton?
Climate Change Over the Years
The climate in Hamilton in December has not changed that much over the last 43 years.
The average temperature was the lowest in 1981 (+71°F) and the highest in 2019 (+76°F). The driest year was 1979 with only 854 mm of rainfall, and the wettest year was 2023 with 1671 mm.
FAQ
Is December a good time to visit Hamilton?
Can you sunbathe in Hamilton in December?
Is Hamilton rainy in December?
Is it sunny in Hamilton in December?
Monthly weather in Hamilton
Source of the data
For this page, we’ve looked at the typical weather in Hamilton, based on historical hourly weather data from January 1, 1979, to December 31, 2023.
For past dates, we show actual recorded data at the location at that time. Forecasts are based on recorded weather during that day of the year, averaged over the total years for which we have records (unless stated otherwise). The daily temperature is the highest recorded temperature in the shadow during that day.
