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Cromwell Weather in January

Cromwell in January sees pleasant daytime temperatures of 18°C (64°F) and nighttime lows of 8°C (46°F). Rainfall is fairly high this month at around 111 mm (4.4 in), so pack a rain jacket to stay dry.

Rainfall in Cromwell in January

Records from the past 30 years suggest around 8 days of rain, with 111 mm (4.4 in) average for the month. When showers do arrive, they tend to be on the heavier side. Worth being prepared even if rain days are not that numerous.

Temperature in Cromwell in January

Expect highs of 18°C (64°F) in Cromwell in January, with nights dropping to around 8°C (46°F). January is a notable month of the summer season. The difference between afternoon and evening temperatures is usually noticeable. With overnight lows of 8°C (46°F), nights are cold. The cold air does make for deep, comfortable sleep if you have enough blankets.

Sunshine in Cromwell in January

The days are predominantly sunny, with an estimated total of around 231 hours of sunshine. These sun-filled days are perfect for playing sports, visiting parks, or going for a bike ride.

Our weather planner can help you find worldwide destinations with pleasant weather during this period. February typically offers the best weather for Cromwell.

Cromwell Temperature in January

Min Temperature

8°C (46°F)

Max Temperature

18°C (64°F)

Chance of Rain

26%

Precipitation

111 mm (4.4 in)

Rainy days

8 days

Sunshine

231 hours *

Percentage Sunshine

* Data from: Wanaka, New Zealand (38 KM, 24 Miles).

Cromwell Weather by Month

Pick a month to see the average temperature, rainfall and sunshine in Cromwell - and find the best time to visit.

January

18°C (64°F)View January → February

19°C (66°F)View February → March

16°C (61°F)View March → April

13°C (55°F)View April → May

9°C (48°F)View May → June

4°C (39°F)View June → July

3°C (37°F)View July → August

5°C (41°F)View August → This monthSeptember

9°C (48°F)View September → October

12°C (54°F)View October → November

14°C (57°F)View November → December

17°C (63°F)View December →

Best Time to Visit Cromwell →

Daily Historical Temperatures

31-year average (1996-2026)

Based on our historical records, temperatures in Cromwell typically stay consistent throughout January, with daily highs averaging around 18°C (64°F). Nights are cool, with lows typically ranging from 8°C (46°F) to 11°C (52°F).

Average temperatures in January

Daily Historical Precipitation

31-year average (1996-2026)

Average daily rainfall for each day of the month based on long-term records.

Average precipitation in January

Historical weather records for Cromwell in January

Browse day-by-day weather records for Cromwell spanning 32 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.

Cromwell historical weather extremes in January

Our historical data for Cromwell spans 1996 to 2025, revealing these weather extremes.

Cromwell recorded its highest January temperature of 32°C (90°F) on January 29, 2018.
The lowest daytime temperature in January was 9°C (48°F), recorded on January 8, 2010.
Nighttime temperatures dropped to 1°C (34°F) on January 3, 2013, marking the coldest January night on record.
Peak precipitation in January occurred on January 31, 2015, when 46 mm (1.8 in) of precipitation was measured.

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 →

Conditions Temperatures Precipitation

Temperatures Precipitation

perfect weather

pleasant

tolerable

unpleasant

poor

Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).

Marker color shows the average daytime high temperature in January: blue is cold, red is hot.

Marker color shows total monthly precipitation in January: pale blue is dry, deep blue is wet.

What to Wear in Cromwell in January

Comfortable temperatures call for an easy wardrobe in January. Pack summer basics like t-shirts and shorts, but include a light jacket for cooler moments. A pair of comfortable walking shoes is essential. Expect heavy rainfall, so bring good rain protection and waterproof bags. And with plenty of sunshine hours, don’t forget sunglasses, sunscreen, and maybe a sun hat.