Nelson weather in December
December in Nelson: nice, rainy, with clean air — an excellent time to visit.
#4 of 12 months in Nelson · #139 of 897 destinations to visit in December · comfort 86/100 (tier A)
Updated June 2026 · climate normals from ERA5 reanalysis
Traveller notes on Nelson in December
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Nelson climate normals — December
| Daytime high | 21°C / 69°F | 😎 nice |
|---|---|---|
| Nighttime low | 14°C / 56°F | |
| Rainfall | 147 mm / 5.8 in | 🌧 rainy |
| Rainy days | 14 days | |
| Humidity | 79% | 💦 very humid |
| Dew point | 13°C / 56°F | |
| Sunshine | 11.2 h/day | |
| Daylight | 15.1 h | |
| Wind | 19 km/h / 12 mph | |
| Air quality (US AQI) | 19 | 🍃 good |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
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Nelson in December — FAQ
- Is December a good time to visit Nelson?
- December in Nelson: nice, rainy, with clean air — an excellent time to visit. It ranks #4 of 12 months for Nelson on SeasonMap's comfort score (86/100).
- What is the weather like in Nelson in December?
- In December, Nelson averages a daily high of 20.8°C and a low of 13.5°C, with about 147.2 mm of rain over roughly 13.6 rainy days.
- What is the air quality in Nelson in December?
- Nelson has a mean US Air Quality Index of about 19 in December.