Newcastle Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Newcastle.
Climate overview of Newcastle
Newcastle, New South Wales, Australia, experiences moderate temperature changes through the seasons. January is the warmest month with daytime highs of 26°C (79°F), while July is the coolest at 18°C (64°F).
Annual rainfall is moderate at around 967 mm (38 in), with June being the wettest month.
Newcastle Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Newcastle - and find the best time to visit.
Monthly Temperature in Newcastle
The weather in Newcastle changes moderately throughout the year, offering enough variation to appreciate each season. Average daytime temperatures reach a comfortable 26°C (79°F) in January. In July, the coolest month of the year, temperatures drop to a moderate 18°C (64°F).
At night, temperatures range from around 21°C (70°F) in January to 12°C (54°F) in July.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Newcastle
Generally, Newcastle has a moderate amount of precipitation, averaging 967 mm (38 in) of rainfall annually. Newcastle experiences moderate seasonal variation in rainfall, with monthly averages ranging from 109 mm (4.3 in) in June, the wettest month, and 54 mm (2.1 in) in August, the driest month. For more details, please visit our Newcastle Precipitation page.
The mean monthly precipitation over the year, including rain, hail, and snow
The average number of days each month with precipitation
Humidity in Newcastle by Month
The relative humidity is moderate throughout the year in Newcastle.
The city experiences its highest humidity in January, reaching 61%. In August, the humidity drops to its lowest level at 49%. What does this mean? Read our detailed page on humidity levels for further details.
Relative humidity over the year
Best Time to Visit Newcastle
Monthly ratings reflect general weather comfort, based on daytime temperature and rainfall. Swimming and winter conditions are highlighted separately where relevant.
- Best overall: January, March, April, May, September, October, November and December
- Warmest weather: January, February, March and December
- Fewest rainy days: July, August, September and December
Frequently asked questions about the climate in Newcastle
What is the best time to visit Newcastle?
January, March, April, May, September, October, November and December typically offer the most optimal weather in Newcastle. In contrast, June tends to have less optimal conditions.
What temperatures can I expect in Newcastle?
Daytime highs range from 18°C (64°F) in July to 26°C (79°F) in January. Nighttime lows range from 12°C (54°F) to 21°C (70°F).
How much rain does Newcastle get?
Annual rainfall is around 967 mm (38 in). June is the wettest month with 109 mm (4.3 in), while August is the driest with 54 mm (2.1 in).
Newcastle 3-Day Forecast
Newcastle on the map
Newcastle is highlighted - select any city to see its climate.
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