Blenheim Weather in January
January in Blenheim brings pleasant temperatures, with highs of 22°C (72°F) and nights dropping to 13°C (55°F). Rainfall is on the higher side this month, averaging around 69 mm (2.7 in), so keep a rain jacket handy.
Rainfall in Blenheim in January
Based on our climate data of the past 30 years, about 6 days of rain are anticipated, with 69 mm (2.7 in) on average. Rainfall tends to arrive in short, intense showers this month. Rain days are few, but the showers can be surprisingly heavy.
Temperature in Blenheim in January
The perfect temperature in Blenheim in January makes it a solid month to visit, with 22°C (72°F) during the day and 13°C (55°F) at night. The summer season takes place during January. This creates a mild day-to-night pattern that is generally easy to manage with the right clothing. With overnight lows of 13°C (55°F), evenings can feel noticeably cooler than the daytime. An extra layer is a good idea, though the cool air makes for a good night's sleep.
Sunshine in Blenheim in January
Expect a lot of sunshine this month, with about 268 hours of sun. These sunny conditions add to the overall experience.If you're inclined towards comfortable temperatures and drier conditions, January is a good time to visit Blenheim.
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 Blenheim's climate page.
Blenheim Temperature in January
Min Temperature
13°C (55°F)
Max Temperature
22°C (72°F)
Chance of Rain
21%
Precipitation
69 mm (2.7 in)
Rainy days
6 days
Humidity
74% *
Sunshine
268 hours *
Percentage Sunshine
*
Daily Historical Temperatures
51-year average (1976-2026)
Based on our historical records, temperatures in Blenheim typically stay consistent throughout January, with daily highs averaging around 22°C (72°F). Nights are pleasant, with lows around 14°C (57°F).
Average temperatures in January
Daily Historical Precipitation
51-year average (1976-2026)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in January
Historical weather for Blenheim in January
Browse day-by-day weather records for Blenheim spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Blenheim historical weather extremes in January
According to our 49 years of weather records for Blenheim, the following extremes were recorded between 1976 and 2025.
- Blenheim recorded its highest January temperature of 29°C (84°F) on January 18, 2011.
- The lowest daytime temperature in January was 13°C (55°F), recorded on January 5, 1997.
- The coldest night in January in Blenheim was on January 1, 1978, with a minimum of 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 Blenheim 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 Blenheim 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 Blenheim's climate page.
Temperature Rainfall Sunshine Humidity
See the full Blenheim climate overview or explore weather in New Zealand.
