Climate averages 1991–2020
Manukau City weather
in December.
A mild, moderately wet month: the 4th warmest and the 8th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
December is a mild month in Manukau City: daytime highs average 20.3°C and nights cool to about 14.6°C. By daytime temperature it is the 4th warmest of the 12 months.
Expect about 87 mm of rain on roughly 11 days, which makes December a moderately wet month (the 8th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 14 h 39 min on an average December day.
The nearest other city in this atlas is Auckland (19 km away). In December its highs average 20.2°C, about as warm as Manukau City, with 92 mm of rain.
Among the 11 cities listed in New Zealand, Manukau City ranks 3rd of 11 for the warmest December highs and 5th of 11 for the driest December (rainfall, lowest first). The mean December high of those 11 cities is 19.1°C; Manukau City is 1.2°C warmer than that mean.
From December to January, average highs rise by 1.8°C to 22.2°C, and monthly rainfall falls from 87 mm to 65 mm.
The annual picture
December in context
Monthly rainfall
Average total · mmAverages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated
Every month, side by side
Manukau City climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 22.2°C16.0°C | 16.0°C | 65 | 8.4 | 14.414 h |
| February | 22.8°C16.7°C | 16.7°C | 64 | 8.1 | 13.513 h |
| March | 21.2°C15.3°C | 15.3°C | 67 | 7.7 | 12.312 h |
| April | 18.9°C13.4°C | 13.4°C | 78 | 9.2 | 11.211 h |
| May | 16.4°C11.5°C | 11.5°C | 92 | 10.5 | 10.210 h |
| June | 14.3°C9.6°C | 9.6°C | 100 | 11.2 | 9.710 h |
| July | 13.5°C8.4°C | 8.4°C | 112 | 12.9 | 9.910 h |
| August | 13.8°C8.5°C | 8.5°C | 97 | 13.7 | 10.711 h |
| September | 15.0°C9.5°C | 9.5°C | 86 | 12.9 | 11.812 h |
| October | 16.4°C10.9°C | 10.9°C | 76 | 11.4 | 13.013 h |
| November | 18.1°C12.4°C | 12.4°C | 71 | 10.2 | 14.114 h |
| December, selected | 20.3°C14.6°C | 14.6°C | 87 | 10.9 | 14.615 h |
Rainfall is the average of the 30 separate monthly totals. A rain day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.
Compare places
December in nearby cities
- Auckland in DecemberNew Zealand · 19 kmHigh 20.2°C · Low 15.0°C · 92 mm rain
- Hamilton, New Zealand in DecemberNew Zealand · 95 kmHigh 20.5°C · Low 12.7°C · 99 mm rain
- Tauranga in DecemberNew Zealand · 137 kmHigh 20.2°C · Low 14.1°C · 112 mm rain
- New Plymouth in DecemberNew Zealand · 241 kmHigh 18.4°C · Low 12.9°C · 160 mm rain
- Hastings, New Zealand in DecemberNew Zealand · 341 kmHigh 21.4°C · Low 13.3°C · 63 mm rain
- Palmerston North in DecemberNew Zealand · 379 kmHigh 19.1°C · Low 11.8°C · 98 mm rain
- Lower Hutt in DecemberNew Zealand · 470 kmHigh 17.9°C · Low 13.3°C · 68 mm rain
- Wellington in DecemberNew Zealand · 478 kmHigh 16.5°C · Low 13.4°C · 65 mm rain
Read the numbers correctly
Climate, not a promise.
These patterns help compare months. They cannot tell you the weather on a specific day of your trip.
Sources, method and limitsHow these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for Manukau City) is explained once on the Manukau City year overview and on the Sources, method and limits page.