Charlestown Weather, NSW
Climate & monthly averages Pop 13,601
Charlestown is a suburb of Newcastle in the Lake Macquarie local government area, with a population of about 13,601 (NSW ABS Census 2021). The local climate is mild temperate, typical of the Newcastle region.
Annual averages from the nearest weather station: maximum daily temperature of 22.5°C, minimum of 15.7°C, and around 1098 mm of rainfall spread across the year.
Best Month
Mar
Comfort 9.2/10
Annual Rain
1098 mm
Across all months
Avg Daily Max
22.5°C
Year-round average
Monthly averages
| Month | Max °C | Min °C | Rain mm | Rain days | Comfort |
|---|---|---|---|---|---|
| January | 27.7 | 21.4 | 48 | 12 | 7.8 |
| February | 27.1 | 21.0 | 97 | 13 | 7.3 |
| March | 25.2 | 19.4 | 40 | 8 | 9.2 |
| April | 22.5 | 16.0 | 166 | 14 | 7.4 |
| May | 19.0 | 13.5 | 155 | 17 | 4.2 |
| June | 16.4 | 9.6 | 183 | 10 | 2.8 |
| July | 16.4 | 10.0 | 46 | 10 | 4.1 |
| August | 19.5 | 12.1 | 62 | 14 | 6.1 |
| September | 22.0 | 12.9 | 57 | 8 | 8.8 |
| October | 21.9 | 14.7 | 79 | 14 | 8.5 |
| November | 25.0 | 18.4 | 116 | 17 | 8.7 |
| December | 26.9 | 19.9 | 48 | 7 | 8.8 |
What locals should know
Charlestown is close enough to the coast (10 km) that summer afternoons often get an evening cool-down once the sea-breeze pushes through. The hottest month is typically January (28°C average max) and the wettest is June (183 mm). All averages quoted come from the nearest long-term weather station, 10 km away in Newcastle.
Looking for hourly forecasts, records, or the seasonal deep-dive? The full Newcastle climate page has it all.
View Newcastle weather →