Hottest (avg)
#4 / 12
Hamilton in December
December weather, climate averages, and packing tips.
Avg High
Avg Low
Rain
Daylight 15h
What to expect
December lands in the heart of summer in Hamilton, where the weather is warming up. Daytime highs average 21°C / 70°F, dropping to 13°C / 56°F at night.
Skies are often overcast, and you should be prepared for regular rainfall (approx. 15 wet days). Long days provide about 14.7 hours of light, giving you plenty of time for evening wandering.
December in context
How it compares to the rest of the year in Hamilton.
Wettest (avg)
#5 / 12
Daylight Hours
#1 / 12
Windiest (avg)
#4 / 12
Highest UV
#2 / 12
Most Humid
#8 / 12
Temperature
- Daytime high
-
- Nighttime low
-
- Feels like (avg)
-
Sunshine
- Daylight
- 14.7 hours
- UV index (max)
- 9
- Typical sun hours
- 05:52 – 20:35
Rain & Snow
- Total
-
- Rainy days
- 15
- Cloud cover
- 66%
- Snowfall
-
Humidity & Wind
- Humidity (avg)
- 78%
- Wind (avg)
-
- Wind (max gusts)
-
Frequently asked questions
Is December a good time to visit Hamilton?
Typical December days in Hamilton reach highs of 21°C (70°F) with nights around 13°C (55°F). It usually feels mild by day and cool after dark. Overall, December sits in the middle of the Hamilton climate range.
What are temperatures like in December?
Daytime temperatures in December typically peak near 21°C (70°F), while nights drop to around 13°C (55°F). Expect mild afternoons and cool evenings.
How much does it rain in December?
Rainfall in December averages 108 mm (4.3 in) across roughly 15 days. Overall it is a very wet time of year, so a light rain jacket and waterproof shoes are very handy.
How many hours of daylight are there in December?
You can expect about 15 hours of daylight in December. Sunrise is typically around 05:52 and sunset near 20:35. You get long days with comfortable amounts of daylight.
How strong is the sun in December?
UV levels frequently reach very high levels (around 9), so strong sun protection is essential, especially around midday.
Is it windy in December?
In December, average wind speeds are around 14 km/h (9 mph), with gusts on the windiest days reaching about 57 km/h (35 mph). On the ground, it is it can feel quite windy at times, particularly when weather systems move through.