Blenheim Weather in July
July in Blenheim sees daytime temperatures around 12°C (54°F) and lows of 4°C (39°F) at night. With around 83 mm (3.3 in) of rainfall expected, it's worth packing a rain jacket.
Rainfall in Blenheim in July
Typically, you can expect about 10 days of rain this month, with 83 mm (3.3 in) on average. Individual showers can be quite heavy this month. A proper umbrella or rain jacket is worth having.
Temperature in Blenheim in July
Daytime temperatures in Blenheim reach 12°C (54°F) in July, dropping to 4°C (39°F) at night. Experience the winter season in July. Temperatures can feel cooler in the morning and evening, so layering is often the best approach. With overnight lows of 4°C (39°F), nights are cold. The cold air does make for deep, comfortable sleep if you have enough blankets. On average, July has the most moderate temperatures of the year.
Sunshine in Blenheim in July
You can expect a moderate amount of sunlight, with approximately 161 hours. This means a pleasant mix of sun and overcast.July in Blenheim has its charm, but if you're looking for destinations with pleasant temperatures and sunny skies, our weather planner can help you explore other options in the world.
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 July
Min Temperature
4°C (39°F)
Max Temperature
12°C (54°F)
Chance of Rain
32%
Precipitation
83 mm (3.3 in)
Rainy days
10 days
Humidity
87% *
Sunshine
161 hours *
Percentage Sunshine
*
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Blenheim typically stay consistent throughout July, with daily highs averaging around 12°C (54°F). Nights are cold, with lows around 7°C (45°F).
Average temperatures in July
Daily Historical Precipitation
50-year average (1976-2025)
Average daily rainfall for each day of the month based on long-term records.
Average precipitation in July
Historical weather for Blenheim in July
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 July
Based on 49 years of weather observations (1976-2025), these are the most extreme conditions recorded in Blenheim.
- On July 20, 2000, temperatures climbed to 18°C (64°F), marking the warmest July day on record.
- The coldest July day was on July 17, 1976, with a maximum of 7°C (45°F).
- The lowest overnight temperature recorded in July was -2°C (28°F) (July 27, 1989).
Best Places in New Zealand in July
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 July →
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What to Wear in Blenheim in July
The weather can swing between comfortable and chilly in July, so flexibility is key. Pack a variety of tops, at least one warm layer, and both shorts and long pants. This gives you options no matter what the day brings. Expect heavy rainfall, so bring good rain protection and waterproof bags. It won't hurt to bring your sunglasses along, as you'll see some sunny periods.What To Do in Blenheim in July
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.
