Wellington weather in December
December in Wellington: nice, rainy, with clean air — an excellent time to visit.
#6 of 12 months in Wellington · #102 of 604 destinations to visit in December · comfort 84/100 (tier A)
Updated June 2026 · climate normals from ERA5 reanalysis
Wellington climate normals — December
| Daytime high | 17°C / 63°F | 😎 nice |
|---|---|---|
| Nighttime low | 14°C / 58°F | |
| Feels like (high) | 17°C / 63°F | |
| Rainfall | 85 mm / 3.4 in | 🌧 rainy |
| Rainy days | 13 days | |
| Humidity | 81% | 💦 very humid |
| Dew point | 13°C / 55°F | |
| Sunshine | 11.3 h/day | |
| Daylight | 15.1 h | |
| Wind | 30 km/h / 19 mph | |
| Air quality (US AQI) | 25 | 🍃 good |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
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Wellington in December — FAQ
- Is December a good time to visit Wellington?
- December in Wellington: nice, rainy, with clean air — an excellent time to visit. It ranks #6 of 12 months for Wellington on SeasonMap's comfort score (84/100).
- What is the weather like in Wellington in December?
- In December, Wellington averages a daily high of 17.4°C and a low of 14.4°C, with about 85.1 mm of rain over roughly 13 rainy days.
- What is the air quality in Wellington in December?
- Wellington has a mean US Air Quality Index of about 25 in December.