Monthly climate guide
Wellington weather in December
With highs near 18°C (64°F) and lows around 13°C (56°F), December feels mild in Wellington. Rainfall averages about 71 mm (some rain) and the sky is often cloudy. Daytime highs are 2°C warmer than November and about the same as January.
What stands out in December
- Days and nights are close, only about 4°C apart.
- December brings early summer to Wellington — the seasons are reversed south of the equator.
- Wellington is usually about 2°C cooler than Nelson, 120 km away, in December.
Avg high
18°C
64°F
Avg low
13°C
56°F
Rainfall
71 mm
some rain
Humidity
81%
relative
Sky
61%
cloud · often cloudy
Wellington weather by month
Show the monthly averages as a table
| Month | Avg high | Avg low | Rain | Humidity | Cloud cover |
|---|---|---|---|---|---|
| January | 19°C / 66°F | 15°C / 58°F | 56 mm | 79% | 59% |
| February | 19°C / 67°F | 15°C / 59°F | 55 mm | 79% | 52% |
| March | 18°C / 64°F | 14°C / 57°F | 74 mm | 82% | 58% |
| April | 16°C / 61°F | 13°C / 55°F | 92 mm | 83% | 58% |
| May | 14°C / 58°F | 11°C / 52°F | 85 mm | 84% | 57% |
| June | 12°C / 54°F | 10°C / 49°F | 99 mm | 85% | 61% |
| July | 12°C / 53°F | 9°C / 48°F | 81 mm | 84% | 62% |
| August | 12°C / 53°F | 9°C / 48°F | 82 mm | 85% | 63% |
| September | 12°C / 54°F | 9°C / 48°F | 77 mm | 84% | 61% |
| October | 14°C / 57°F | 10°C / 50°F | 67 mm | 83% | 62% |
| November | 15°C / 60°F | 12°C / 53°F | 73 mm | 82% | 61% |
| December | 18°C / 64°F | 13°C / 56°F | 71 mm | 81% | 61% |
What to pack for December
- A warm sweater or fleece for layering
- A mid-weight jacket
- A compact umbrella or packable rain jacket
- Water-resistant shoes
Is December a good time to visit Wellington?
Compare the months in the chart above to find your ideal window.
Best time to visit Wellington →Other New Zealand cities in December
Cite or embed this data
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Wellington weather in December. WeatherCompare, 2026 (NASA POWER / ERA5, 2011–2020 monthly averages). https://weathercompare.eu/weather/new-zealand/wellington/december
<a href="https://weathercompare.eu/weather/new-zealand/wellington/december">Wellington weather in December</a> (WeatherCompare)
<iframe src="https://weathercompare.eu/embed/new-zealand/wellington" width="300" height="160" style="border:0;border-radius:12px" loading="lazy" title="Wellington weather in December"></iframe> <p style="font-size:12px"><a href="https://weathercompare.eu/weather/new-zealand/wellington/december">Wellington weather in December</a> – WeatherCompare</p>
Wellington in December: quick answers
Is December a good time to visit Wellington?
Yes. December is one of the best months for Wellington, with highs around 18°C and about 71 mm of rain.
How warm is Wellington in December?
Average highs are about 18°C (64°F) and average lows about 13°C (56°F), based on 10 years of daily data.
Does it rain a lot in Wellington in December?
Wellington typically gets around 71 mm of rain in December — some rain.
Figures are long-term averages for the area around Wellington (NASA POWER / ERA5, 2011–2020), not a forecast for a specific year. For upcoming days, see the live multi-source forecast.