Climate averages 1991–2020
Newcastle, Australia weather
in August.
A mild, moderately wet month: the 10th warmest and the 2nd driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
August is a mild month in Newcastle, Australia: daytime highs average 17.4°C and nights cool to about 10.8°C. By daytime temperature it is the 10th warmest of the 12 months.
Expect about 56 mm of rain on roughly 7 days, which makes August a moderately wet month (the 2nd driest of the 12 months). Daylight, from sunrise to sunset, lasts about 10 h 55 min on an average August day.
The nearest other city in this atlas is Maitland (30 km away). In August its highs average 18.2°C, 0.8°C warmer than Newcastle, Australia, with 31 mm of rain.
Among the 32 cities listed in Australia, Newcastle, Australia ranks 15th of 32 for the warmest August highs and joint 22nd of 32 for the driest August (rainfall, lowest first). The mean August high of those 32 cities is 17.6°C; Newcastle, Australia is 0.2°C cooler than that mean.
From August to September, average highs rise by 2.6°C to 20.0°C, and monthly rainfall falls from 56 mm to 53 mm.
The annual picture
August 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
Newcastle, Australia climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 26.1°C20.2°C | 20.2°C | 76 | 9.6 | 14.114 h |
| February | 25.5°C20.2°C | 20.2°C | 98 | 9.8 | 13.313 h |
| March | 23.9°C19.0°C | 19.0°C | 98 | 11.6 | 12.312 h |
| April | 21.7°C16.5°C | 16.5°C | 86 | 11.1 | 11.311 h |
| May | 18.9°C13.8°C | 13.8°C | 94 | 10.8 | 10.510 h |
| June | 16.6°C11.7°C | 11.7°C | 113 | 11.6 | 10.010 h |
| July | 16.1°C10.5°C | 10.5°C | 73 | 8.9 | 10.210 h |
| August, selected | 17.4°C10.8°C | 10.8°C | 56 | 7.1 | 10.911 h |
| September | 20.0°C12.8°C | 12.8°C | 53 | 7.0 | 11.912 h |
| October | 21.8°C14.8°C | 14.8°C | 63 | 8.4 | 12.913 h |
| November | 23.1°C16.7°C | 16.7°C | 81 | 9.7 | 13.814 h |
| December | 24.7°C18.6°C | 18.6°C | 70 | 9.8 | 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
August in nearby cities
- Maitland in AugustAustralia · 30 kmHigh 18.2°C · Low 8.4°C · 31 mm rain
- Central Coast in AugustAustralia · 67 kmHigh 17.3°C · Low 10.9°C · 49 mm rain
- Sydney in AugustAustralia · 117 kmHigh 17.1°C · Low 9.4°C · 53 mm rain
- Blue Mountains in AugustAustralia · 160 kmHigh 11.5°C · Low 1.8°C · 46 mm rain
- Wollongong in AugustAustralia · 185 kmHigh 16.6°C · Low 10.7°C · 63 mm rain
- Coffs Harbour in AugustAustralia · 319 kmHigh 19.0°C · Low 11.7°C · 45 mm rain
- Canberra in AugustAustralia · 358 kmHigh 11.4°C · Low 1.6°C · 49 mm rain
- Tuggeranong in AugustAustralia · 372 kmHigh 11.4°C · Low 1.6°C · 57 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 Newcastle) is explained once on the Newcastle, Australia year overview and on the Sources, method and limits page.