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Newcastle, New South Wales Weather by Month and Climate Averages
Monthly normals · Rain · Snow
Sunshine · Freeze dates · Records · Best time to visit
What is the weather like in Newcastle, New South Wales?
Newcastle, New South Wales gets 1028 mm of precipitation a year over about 128 rainy days. January is the warmest month (average high 26°C) and July the coldest (average low 9°C).
Humid subtropical climate
Newcastle, New South Wales has warm summers and mild winters. Daytime highs range from about 18°C in July to 26°C in January. June is usually the wettest month. The most comfortable time to visit is typically January to May and July to December, when daytime highs sit near 23°C.
| Season | Months | Avg low | Avg high |
|---|---|---|---|
| Winter | Jun–Aug | 10° | 18° |
| Spring | Sep–Nov | 15° | 22° |
| Summer | Dec–Feb | 19° | 25° |
| Autumn | Mar–May | 16° | 23° |
How much rain does Newcastle get?
Newcastle gets 1028 mm of precipitation in an average year, spread over about 128 days with measurable rain. That is more rainy days than 86% of Australia.
June is the wettest month, with 125 mm. August is the driest, with 49 mm. June has the most rainy days, about 13.
The longest dry spell in the last five years lasted 17 days, to September 9, 2025.
From October 2025 to September 2026 Newcastle got 778 mm of rain, against a normal of 1028 mm for those months. May 2026 had the most, with 224 mm.
Newcastle weather by month
Newcastle weather in January
In January, Newcastle averages a high of 26°C and a low of 20°C. It gets 71 mm of precipitation over about 10 rainy days. Estimated sunshine is 48% of daylight hours, derived from ERA5 cloud cover. The January record high is 39°C (2009) and the record low is 12°C (1977). January is one of the most comfortable months to visit.
Newcastle weather in February
In February, Newcastle averages a high of 26°C and a low of 20°C. It gets 110 mm of precipitation over about 11 rainy days. Estimated sunshine is 45% of daylight hours, derived from ERA5 cloud cover. The February record high is 38°C (2011) and the record low is 13°C (1993). February is one of the most comfortable months to visit.
Newcastle weather in March
In March, Newcastle averages a high of 25°C and a low of 19°C. It gets 114 mm of precipitation over about 12 rainy days. Estimated sunshine is 45% of daylight hours, derived from ERA5 cloud cover. The March record high is 38°C (1985) and the record low is 11°C (2001). March is one of the most comfortable months to visit.
Newcastle weather in April
In April, Newcastle averages a high of 23°C and a low of 16°C. It gets 109 mm of precipitation over about 11 rainy days. Estimated sunshine is 54% of daylight hours, derived from ERA5 cloud cover. The April record high is 37°C (1986) and the record low is 7°C (1990). April is one of the most comfortable months to visit.
Newcastle weather in May
In May, Newcastle averages a high of 21°C and a low of 13°C. It gets 116 mm of precipitation over about 12 rainy days. Estimated sunshine is 55% of daylight hours, derived from ERA5 cloud cover. The May record high is 28°C (2013) and the record low is 5°C (1987). May is one of the most comfortable months to visit.
Newcastle weather in June
In June, Newcastle averages a high of 18°C and a low of 11°C. It gets 125 mm of precipitation over about 13 rainy days. Estimated sunshine is 60% of daylight hours, derived from ERA5 cloud cover. The June record high is 25°C (2023) and the record low is 3°C (1975).
Newcastle weather in July
In July, Newcastle averages a high of 18°C and a low of 9°C. It gets 69 mm of precipitation over about 10 rainy days. Estimated sunshine is 58% of daylight hours, derived from ERA5 cloud cover. The July record high is 26°C (1990) and the record low is 2°C (1986). July is one of the most comfortable months to visit.
Newcastle weather in August
In August, Newcastle averages a high of 19°C and a low of 10°C. It gets 49 mm of precipitation over about 8 rainy days. Estimated sunshine is 63% of daylight hours, derived from ERA5 cloud cover. The August record high is 30°C (1995) and the record low is 3°C (1974). August is one of the most comfortable months to visit.
Newcastle weather in September
In September, Newcastle averages a high of 21°C and a low of 13°C. It gets 58 mm of precipitation over about 9 rainy days. Estimated sunshine is 62% of daylight hours, derived from ERA5 cloud cover. The September record high is 34°C (2003) and the record low is 6°C (1987). September is one of the most comfortable months to visit.
Newcastle weather in October
In October, Newcastle averages a high of 22°C and a low of 15°C. It gets 62 mm of precipitation over about 10 rainy days. Estimated sunshine is 52% of daylight hours, derived from ERA5 cloud cover. The October record high is 37°C (2025) and the record low is 7°C (1982). October is one of the most comfortable months to visit.
Newcastle weather in November
In November, Newcastle averages a high of 23°C and a low of 17°C. It gets 78 mm of precipitation over about 11 rainy days. Estimated sunshine is 46% of daylight hours, derived from ERA5 cloud cover. The November record high is 41°C (2009) and the record low is 7°C (1971). November is one of the most comfortable months to visit.
Newcastle weather in December
In December, Newcastle averages a high of 24°C and a low of 19°C. It gets 66 mm of precipitation over about 11 rainy days. Estimated sunshine is 50% of daylight hours, derived from ERA5 cloud cover. The December record high is 40°C (2004) and the record low is 11°C (2025). December is one of the most comfortable months to visit.
Sunshine, humidity and wind in Newcastle
August is the sunniest month in Newcastle, with estimated sunshine of 63% of daylight hours from ERA5 cloud cover. February is the cloudiest, at 45%. The annual cloud-cover estimate is 53% of daylight hours; it is not a measurement of sunshine duration. Newcastle is sunnier than 51% of Australia.
Humidity peaks in January at 80% and is lowest in September at 69%.
Newcastle has about 8 days a year above 32°C. Newcastle is cooler than 84% of Australia.
Newcastle weather records
These records cover NEWCASTLE NOBBYS SIGNAL STATIO during 1970–2026. Earlier records or other stations in the city may differ.
The hottest temperature on record at the Newcastle station is 41°C, on November 29, 2020. The coldest is 2°C, on July 27, 1986.
The wettest day in the available station history brought 252 mm of precipitation, on February 3, 1990.
35 all-time records have been set at the station since 1970.
The annual mean temperature has changed by +0.3°C per decade since 1970.
The best time to visit Newcastle
The most comfortable time to visit is typically January to May and July to December, when daytime highs sit near 23°C.
Winter (June–August) is mild, with average highs around 18°C and lows near 10°C.
Spring (September–November) is warm, with average highs around 22°C and lows near 15°C.
Summer (December–February) is warm, with average highs around 25°C and lows near 20°C. It can feel humid.
Autumn (March–May) is warm, with average highs around 23°C and lows near 16°C.
Monthly climate
| Month | Average low | Average high | Precip | Rain days | Humidity | Estimated sunshine | Record high | Record low |
|---|---|---|---|---|---|---|---|---|
| January | 20° | 26° | 71 mm | 10 | 80% | 48% | 39° | 12° |
| February | 20° | 26° | 110 mm | 11 | 78% | 45% | 38° | 13° |
| March | 19° | 25° | 114 mm | 12 | 77% | 45% | 38° | 11° |
| April | 16° | 23° | 109 mm | 11 | 73% | 54% | 37° | 7° |
| May | 13° | 21° | 116 mm | 12 | 72% | 55% | 28° | 5° |
| June | 11° | 18° | 125 mm | 13 | 70% | 60% | 25° | 3° |
| July | 9° | 18° | 69 mm | 10 | 71% | 58% | 26° | 2° |
| August | 10° | 19° | 49 mm | 8 | 70% | 63% | 30° | 3° |
| September | 13° | 21° | 58 mm | 9 | 69% | 62% | 34° | 6° |
| October | 15° | 22° | 62 mm | 10 | 73% | 52% | 37° | 7° |
| November | 17° | 23° | 78 mm | 11 | 76% | 46% | 41° | 7° |
| December | 19° | 24° | 66 mm | 11 | 78% | 50% | 40° | 11° |
Station: NEWCASTLE NOBBYS SIGNAL STATIO, 2 km from the city. Temperature normal baseline: 1991–2020, calculated from available NOAA GHCN-Daily observations. Available station history: 1970–2026; record values refer to this station and period, not the entire city’s history. Precipitation includes rain and the water equivalent of frozen precipitation; snowfall depth is shown separately when available. Sources and methods
From ERA5 reanalysis. Sunshine is estimated from cloud cover.
Newcastle climate questions
How much rain does Newcastle get?
Newcastle gets 1028 mm of precipitation in an average year, over about 128 rainy days.
What is the wettest month in Newcastle?
June is the wettest month in Newcastle, with 125 mm. August is the driest, with 49 mm.
How many rainy days does Newcastle have a year?
Newcastle has about 128 days with measurable rain in an average year. June has the most, about 13.
What is the hottest month in Newcastle?
January is the warmest month in Newcastle, with an average high of 26°C.
What is the coldest month in Newcastle?
July is the coldest month in Newcastle, with an average low of 9°C.
What is the record high temperature in Newcastle?
Within the available 1970–2026 station history, the record high at the Newcastle station is 41°C, set on November 29, 2020. The record low is 2°C, on July 27, 1986.
What is the sunniest month in Newcastle?
August is the sunniest month in Newcastle, with estimated sunshine of 63% of daylight hours from ERA5 cloud cover. February is the cloudiest.
What is the best time to visit Newcastle?
The most comfortable time to visit is typically January to May and July to December, when daytime highs sit near 23°C.