Hamilton Weather in January
Thinking of visiting Hamilton in January? Expect high temperatures reaching 25°C (77°F) during the day, dropping to 15°C (59°F) at night, with the driest conditions of the year.
Rainfall in Hamilton in January
This month is perfect for exploring, with the driest conditions of the year. You can expect rain on around 10 days based on historical patterns, with 76 mm (3 in) average for the month. Rainfall intensity is on the higher side this month. Expect more substantial showers rather than light, passing rain.
Temperature in Hamilton in January
Hamilton in January is worth a visit. The temperature is perfect, with 25°C (77°F) during the day and 15°C (59°F) at night. January is a notable month of the summer season. This kind of day-to-night contrast is typical for this time of year. Nights cool down to 15°C (59°F), so a light jacket or extra layer is useful once the sun goes down. On the plus side, the cooler nights make for comfortable sleeping conditions.
Sunshine in Hamilton in January
The days are predominantly sunny, with an estimated total of around 230 hours of sunshine. These sun-filled days are perfect for playing sports, visiting parks, or going for a bike ride.If your ideal day consists of dry skies and pleasant temperatures, January, February, March and November typically offer the best circumstances for Hamilton.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit New Zealand, check out our Hamilton's climate page.
Hamilton Temperature in January
Min Temperature
15°C (59°F)
Max Temperature
25°C (77°F)
Chance of Rain
35%
Precipitation
76 mm (3 in)
Rainy days
10 days
Humidity
81%
Sunshine
230 hours
Percentage Sunshine
Historical weather for Hamilton in January
Browse day-by-day weather records for Hamilton spanning 23 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Hamilton historical weather extremes in January
The extremes listed below come from historical weather data collected in Hamilton from 2006 through 2025.
- The hottest January day on record in Hamilton reached 31°C (88°F) (January 4, 2022).
- On January 20, 2021, Hamilton saw its coldest January day with temperatures maxing out at 18°C (64°F).
- Hamilton registered its coldest January night on January 28, 2012, with temperatures dropping to 7°C (45°F).
Best Places in New Zealand in January
Find out more about the weather in New Zealand and which places have the best travel conditions in this month. See all of New Zealand in January →
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What to Wear in Hamilton in January
Pleasant temperatures in January mean you can pack light but flexibel pieces. Think cotton t-shirts, comfortable walking shorts, and one warmer layer for evenings. A light sweater or denim jacket works well. Rain gear is recommended, you can expect wet weather on multiple days. Don't forget sun protection, sunglasses, sunscreen, and a hat. These are all good ideas with this much sunshine.What To Do in Hamilton in January
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit New Zealand, check out our Hamilton's climate page.
Temperature Rainfall Sunshine Humidity
See the full Hamilton climate overview or explore weather in New Zealand.
