Nelson Weather in September
September in Nelson typically sees daytime highs of 14°C (57°F) and nighttime lows of 7°C (45°F). Rainfall is also possible this month, so it's worth packing an umbrella.
Rainfall in Nelson in September
Based on our climate data of the past 30 years, about 13 days of rain are anticipated, with 126 mm (5 in) on average. The rain this month tends to fall in heavier spells rather than light drizzle. When it rains, showers can be significant.
Temperature in Nelson in September
If you're visiting Nelson in September, expect highs of 14°C (57°F) and overnight lows around 7°C (45°F). The difference between afternoon and evening temperatures is usually noticeable. Nights fall to 7°C (45°F), which is cold enough to feel it indoors too. A good thick duvet makes all the difference for a comfortable night's sleep.
Sunshine in Nelson in September
You can expect a moderate amount of sunlight, with approximately 189 hours. This means a pleasant mix of sun and overcast.Our weather planner can help you find worldwide destinations with pleasant weather during this period. February and March typically offer the best weather for Nelson.
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 Nelson's climate page.
Nelson Temperature in September
Min Temperature
7°C (45°F)
Max Temperature
14°C (57°F)
Chance of Rain
42%
Precipitation
126 mm (5 in)
Rainy days
13 days
Humidity
80%
Sunshine
189 hours
Percentage Sunshine
Daily Historical Temperatures
50-year average (1976-2025)
Based on our historical records, temperatures in Nelson typically stay consistent throughout September, with daily highs averaging around 14°C (57°F). Nights are cold, with lows typically ranging from 6°C (43°F) to 8°C (46°F).
Average temperatures in September
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 September
Historical weather for Nelson in September
Browse day-by-day weather records for Nelson spanning 51 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Nelson historical weather extremes in September
Based on 49 years of weather observations (1976-2025), these are the most extreme conditions recorded in Nelson.
- Nelson recorded its highest September temperature of 21°C (70°F) on September 24, 2014.
- The lowest daytime temperature in September was 2°C (36°F), recorded on September 4, 1989.
- Nighttime temperatures dropped to -2°C (28°F) on September 9, 1977, marking the coldest September night on record.
Best Places in New Zealand in September
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 September →
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unpleasant
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What to Wear in Nelson in September
The weather can swing between comfortable and chilly in September, 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. Sunglasses could come in handy during the sunnier parts of your trip.What To Do in Nelson in September
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 Nelson's climate page.
Temperature Rainfall Sunshine Humidity
See the full Nelson climate overview or explore weather in New Zealand.
