Newcastle, New South Wales, Australia climate
Average temperatures, precipitation and all-time records for Newcastle, New South Wales, Australia, with every day graded against ~46 years of local climate history (1980–2026). Its warmest month is January, averaging a high of 24°C, and its coldest is July, with an average low of 12°C.
Newcastle, also known as Greater Newcastle, is a large metropolitan area and the second-most-populous such area of New South Wales, Australia. via Wikipedia
How today compares
Latest recorded day: 2026-09-07. Each reading placed on Newcastle, New South Wales, Australia's own ±7-day seasonal distribution.
Newcastle average temperatures by month
Typical daily high and low, and average precipitation, for each month in Newcastle, New South Wales, Australia, based on 1980–2026 records. The wettest month is January (3 mm on an average day).
| Month | Avg high | Avg low | Avg precip |
|---|---|---|---|
| January | 24°C | 21°C | 3 mm |
| February | 24°C | 21°C | 3 mm |
| March | 23°C | 20°C | 3 mm |
| April | 21°C | 18°C | 3 mm |
| May | 19°C | 16°C | 3 mm |
| June | 17°C | 13°C | 3 mm |
| July | 16°C | 12°C | 3 mm |
| August | 17°C | 13°C | 3 mm |
| September | 18°C | 14°C | 3 mm |
| October | 20°C | 16°C | 3 mm |
| November | 21°C | 18°C | 3 mm |
| December | 23°C | 20°C | 3 mm |
Each bar spans the 10th-percentile daily low to the 90th-percentile daily high (the range most days fall within), coloured cold → hot on a shared -23°C to 46°C scale, so the whole year's rhythm reads at a glance.
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Record extremes
- Hottest day on record: 36°C on 2004-02-21
- Coldest day on record: 7°C on 1984-07-03
Percentiles compare each day to Newcastle, New South Wales, Australia's own history, so grades are relative to this location: a “Near Record” day here isn't the same temperature as elsewhere. How the grades work →