Hottest (avg)
#2 / 12
Hamilton in January
January weather, climate averages, and packing tips.
Avg High
Avg Low
Rain
Daylight 14h
What to expect
January lands in the heart of summer in Hamilton, where the weather is warming up. Daytime highs average 23°C / 73°F, dropping to 14°C / 58°F at night.
Skies are often changeable, and you should be prepared for regular rainfall (approx. 12 wet days). The sun is very strong at this time of year, making sun protection essential during the day.
January in context
How it compares to the rest of the year in Hamilton.
Wettest (avg)
#3 / 12
Daylight Hours
#2 / 12
Windiest (avg)
#8 / 12
Highest UV
#1 / 12
Most Humid
#11 / 12
Temperature
- Daytime high
-
- Nighttime low
-
- Feels like (avg)
-
Sunshine
- Daylight
- 14.4 hours
- UV index (max)
- 9
- Typical sun hours
- 06:14 – 20:40
Rain & Snow
- Total
-
- Rainy days
- 12
- Cloud cover
- 59%
- Snowfall
-
Humidity & Wind
- Humidity (avg)
- 75%
- Wind (avg)
-
- Wind (max gusts)
-
Frequently asked questions
Is January a good time to visit Hamilton?
Typical January days in Hamilton reach highs of 23°C (73°F) with nights around 14°C (57°F). It usually feels warm by day and cool after dark. It is one of the drier months, which suits outdoor exploring and sightseeing.
What are temperatures like in January?
In January, you can usually expect highs of 23°C (73°F) and lows near 14°C (57°F). That means warm days and cool nights, so pack layers you can add or remove.
How much does it rain in January?
Rainfall in January averages 76 mm (3.0 in) across roughly 12 days. Overall it is a quite rainy time of year, so a light rain jacket and waterproof shoes are very handy.
How many hours of daylight are there in January?
You can expect about 14 hours of daylight in January. Sunrise is typically around 06:14 and sunset near 20:40. You get long days with comfortable amounts of daylight.
How strong is the sun in January?
UV levels frequently reach very high levels (around 9), so strong sun protection is essential, especially around midday.
Is it windy in January?
In January, average wind speeds are around 13 km/h (8 mph), with gusts on the windiest days reaching about 56 km/h (35 mph). On the ground, it is it can feel quite windy at times, particularly when weather systems move through.