Climate averages 1991–2020
Central Coast weather
in December.
A warm, moderately wet month: the 3rd warmest and the joint 5th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
December is a warm month in Central Coast: daytime highs average 24.4°C and nights cool to about 18.4°C. By daytime temperature it is the 3rd warmest of the 12 months.
Expect about 70 mm of rain on roughly 10 days, which makes December a moderately wet month (the joint 5th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 14 h 19 min on an average December day.
The nearest other city in this atlas is Sydney (51 km away). In December its highs average 24.2°C, about as warm as Central Coast, with 60 mm of rain.
Among the 32 cities listed in Australia, Central Coast ranks 21st of 32 for the warmest December highs and joint 14th of 32 for the driest December (rainfall, lowest first). The mean December high of those 32 cities is 26.0°C; Central Coast is 1.6°C cooler than that mean.
From December to January, average highs rise by 1.4°C to 25.7°C, and monthly rainfall rises from 70 mm to 78 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
Central Coast climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 25.7°C20.1°C | 20.1°C | 78 | 10.4 | 14.114 h |
| February | 25.2°C20.1°C | 20.1°C | 102 | 11.2 | 13.313 h |
| March | 23.7°C18.9°C | 18.9°C | 89 | 12.1 | 12.312 h |
| April | 21.5°C16.5°C | 16.5°C | 77 | 10.2 | 11.311 h |
| May | 18.8°C13.8°C | 13.8°C | 70 | 9.2 | 10.410 h |
| June | 16.5°C11.8°C | 11.8°C | 86 | 9.7 | 10.010 h |
| July | 16.0°C10.6°C | 10.6°C | 49 | 7.2 | 10.210 h |
| August | 17.3°C10.9°C | 10.9°C | 49 | 6.5 | 10.911 h |
| September | 19.8°C12.9°C | 12.9°C | 51 | 6.8 | 11.912 h |
| October | 21.6°C14.8°C | 14.8°C | 62 | 8.6 | 12.913 h |
| November | 22.9°C16.6°C | 16.6°C | 81 | 10.0 | 13.814 h |
| December, selected | 24.4°C18.4°C | 18.4°C | 70 | 10.2 | 14.314 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
- Sydney in DecemberAustralia · 51 kmHigh 24.2°C · Low 17.8°C · 60 mm rain
- Newcastle, Australia in DecemberAustralia · 67 kmHigh 24.7°C · Low 18.6°C · 70 mm rain
- Maitland in DecemberAustralia · 79 kmHigh 27.5°C · Low 17.6°C · 71 mm rain
- Blue Mountains in DecemberAustralia · 101 kmHigh 22.1°C · Low 11.0°C · 121 mm rain
- Wollongong in DecemberAustralia · 119 kmHigh 23.5°C · Low 17.5°C · 72 mm rain
- Canberra in DecemberAustralia · 291 kmHigh 24.3°C · Low 12.1°C · 55 mm rain
- Tuggeranong in DecemberAustralia · 306 kmHigh 24.3°C · Low 12.1°C · 81 mm rain
- Coffs Harbour in DecemberAustralia · 385 kmHigh 25.7°C · Low 19.5°C · 150 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 Central Coast) is explained once on the Central Coast year overview and on the Sources, method and limits page.