Climate and monthly weather forecastNewcastle, Australia
Newcastle, Australia - Climate and weather forecast by month. Detailed climate information with charts - average monthly weather with temperature, pressure, humidity, precipitation, wind, daylight, sunshine, visibility, and UV index data. The month with the most rainfall in Newcastle, Australia, is February, when the rain falls for 14.7 days and typically aggregates up to 79mm (3.11") of precipitation. Despite the absence of a definitive monsoon period, Newcastle faces a significant number of rainy days throughout the year, cresting at 15.6 days in March, and decreasing to a minimum of 10.2 days in August.
Climate and monthly weather forecast
The climate of Newcastle
The city of Newcastle is geographically located on the east coast of Australia. It experiences a predominant Köppen climate classification of Cfa, which is defined as a humid subtropical climate with no dry season. Subtropical climates are characterized by hot, humid summers and mild winters. These conditions raise humidity levels, typically standing around the mid-70s on a percentage scale.Throughout the year, temperatures in Newcastle undergo fluctuating patterns. The average high temperature ranges from 16.3°C (61.3°F) in July to 26.7°C (80.1°F) in January, while the average low temperatures vary from 10.8°C (51.4°F) in August to 20.3°C (68.5°F) in January. Sea temperatures maintain an annual progression from approximately 18.9°C (66°F) in August to a peak around 24°C (75.2°F) from January to March, offering suitable conditions for sea-related activities.
Rainfall in Newcastle exhibits a relatively high degree of uniformity from month to month. The city receives between 34mm (1.34") in August to a heightened level of 79mm (3.11") in February. Despite the absence of a definitive monsoon period, Newcastle faces a significant number of rainy days throughout the year, cresting at 15.6 days in March, and decreasing to a minimum of 10.2 days in August. Peak rainfall during summer months combined with high temperatures may increase humidity levels, a characteristic often linked with subtropical climates.
The best time to visit Newcastle
The most pleasant time to visit Newcastle would be around spring time, particularly in October and November. During this period, the city experiences average high temperatures between 20.1°C (68.2°F) to 23.7°C (74.7°F). Coupled with the relatively lower rainfall levels, ranging from 43mm (1.69") to 64mm (2.52"), this time of the year provides not only suitable temperatures but reduced chances of rainfall disruption. Furthermore, sea temperature also remains comfortable, between 19.4°C (66.9°F) and 21.1°C (70°F), making it a suitable period for beach outings or water-related activities.The worst time to visit Newcastle
The less desirable months to visit Newcastle would mostly be in the winter, specifically from June to August. During this period, temperatures can drop to an average low of 10.9°C (51.6°F) in July, which can be relatively cold for a subtropical city such as Newcastle. Rainfall amounts moderate during this period, while the number of rainy days per month remains high. Furthermore, sea temperatures also become more frigid, declining to an annual low of 18.9°C (66°F) in August.Spring weather in Newcastle
Springtime from September to November witnesses an upward swing in temperatures, primarily from 19.4°C (66.9°F) to 23.7°C (74.7°F). Correspondingly, the average low temperature also sees a mild increase from 13.2°C (55.8°F) to 17.3°C (63.1°F). Significant daylight hours from 11.9h to 13.8h complement the comfortable temperatures in favour of outdoor activities. The total monthly rainfall amount reduces from 67mm (2.64") to 45mm (1.77") to a slightly higher 43mm (1.69"), with the number of sunny days gradually increasing.Summer weather in Newcastle
Summers in Newcastle, which span from December to February, are typically hot and humid. The average high temperatures float around 24.9°C (76.8°F) to 26.7°C (80.1°F) while the average low temperatures range from 18.7°C (65.7°F) to 20.3°C (68.5°F). Rainfall peaks during these months, particularly in February when 79mm (3.11") precipitation is recorded. Despite the high humidity and rainfall, the sea temperature increases to 24°C (75.2°F), promoting various water activities.Autumn weather in Newcastle
During the autumn months from March to May, temperatures in Newcastle begin to cool down. Average high temperatures show a gradual decrease from 24.9°C (76.8°F) in March to 19.4°C (66.9°F) by the end of May. The average low temperature drops even more notably, from 19.3°C (66.7°F) to 13.6°C (56.5°F). Rainfall as well displays a downward trend, reducing from 59mm (2.32") in March to 45mm (1.77") in May.Winter weather in Newcastle
Winters in Newcastle, settling in from June to August, bring about relatively cooler conditions. August witnesses the coolest temperatures, where average highs drop to 17.4°C (63.3°F) and average lows to 10.8°C (51.4°F). Rainfall stays moderate during this period with a low of 34mm (1.34") recorded in August. The total number of daylight hours drops to the year's minimum of 10h in June, reducing sunlight exposure.Weather in January
January in Newcastle, Australia experiences a warm climate with slightly higher temperature levels compared to the previous month. There is a substantial volume of rainfall, accompanied by a high relative humidity level. During this period, the highest temperature reaches 26.7°C (80.1°F) and the lowest dips to 20.3°C (68.5°F). Weather in January »Weather in February
Following January, the month of February continues to see warm temperatures in Newcastle, though slightly decreased with the highest falling to 25.8°C (78.4°F) and the lowest to 20.1°C (68.2°F). There is a noted increase in rainfall from the previous month with frequent light showers. Weather in February »Weather in March
As March sets in, Newcastle experiences a slight decrease in temperatures, making the weather more comfortable. The volume of rainfall is less than in February, leading to clearer skies and an increased number of sunny hours. The ocean stays warm, welcoming those who enjoy water-based activities. Weather in March »Weather in April
Newcastle's climate in April becomes more pleasant, with further temperature decreases denoting the transition from summer to Autumn. Rainfall is marginally lower than in March, but the city experiences more cloudy days and reduced sunlight hours. Weather in April »Weather in May
May in Newcastle signals the onset of cooler temperatures, indicating the city's transition into winter. Rainfall reduces significantly from April, and the relative humidity follows a similar trend. Despite the decrease in temperature, the city experiences a rise in wind speed, adding a chill factor. Weather in May »Weather in June
June witnesses more evident signs of winter in Newcastle. Temperatures reach their lowest point, while rainfall and relative humidity also decrease. The sea also gets colder, making water activities less attractive to tourists and locals. Weather in June »Weather in July
The cold weather persists through July in Newcastle, and temperatures stay low. The month experiences a decrease in rainfall but an increase in the number of sunny days, offering an enticing contrast. Despite the coolest sea temperatures, the city's wind speed slightly increases from the previous month. Weather in July »Weather in August
In August, temperatures in Newcastle begin to rise slowly, indicating the onset of the warmer months. Rainfall remains relatively low, while the number of sunny days and daylight hours increase from July. The sea starts to warm up again, signalling a slow return of water-based activities. Weather in August »Weather in September
September in Newcastle brings notable changes in weather conditions, with temperatures rising significantly from August. Rainfall shows signs of increasing, while the daylight hours lengthen, marking the start of Spring. A slow warming trend in sea temperatures sees the return of beachgoers. Weather in September »Weather in October
In October, Newcastle experiences a considerable temperature increase, along with a boost in the humidity level. Despite the rising temperatures, October rainfall increases only marginally from September. The longer daylight hours and abundant sunshine enhance the appeal of outdoor activities and sightseeing. Weather in October »Weather in November
November in Newcastle comes with a further increase in temperatures and humidity levels, indicating the arrival of summer's hotter days. Rainfall also increases from October, giving way to refreshing showers amid the heat. However, November offers the longest daylight hours and one of the highest amounts of sunshine hours in the whole year. Weather in November »Weather in December
December in Newcastle experiences the warmth of full summer, with high temperatures, heightened humidity, and mild showers. The amount of rainfall reduces compared to November and the city receives plentiful sunshine. Sea temperatures peak for the year, attracting large crowds to the beaches. Weather in December »Updated: Jan 26, 2024
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
January is the warmest month in Newcastle, with the temperature often reaching an average high of 26.7°C (80.1°F) and an average low of 20.3°C (68.5°F).
In Newcastle, during the entire year, the rain falls for 160.9 days and collects up to 620mm (24.41") of precipitation.
January, February, November and December, with an average maximum UV index of 6, are months with the highest UV index in Newcastle.
With an average relative humidity of 77%, February is the most humid month.
The month with the most rainfall in Newcastle, Australia, is February, when the rain falls for 14.7 days and typically aggregates up to 79mm (3.11") of precipitation.
With an average sea temperature of 24°C (75.2°F), February is the month with the warmest seawater.
On Sunday, 07. April 2024, at 3:00 am, Daylight Saving Time ends in Newcastle, Australia, and the time zone changes from AEDT to AEST. The next Daylight Saving Time starts on Sunday, 06. October 2024, at 2:00 am, and the time zone reverts from AEST to AEDT.
The months with the lowest UV index are May through August, with an average maximum UV index of 4.
June has the shortest days of the year, with an average of 10h and 0min of daylight.
The month with the least sunshine in Newcastle is June, with an average of 5.8h of sunshine.
July, noted for its average high-temperature of 16.3°C (61.3°F) and an average low-temperature of 10.9°C (51.6°F), is considered the coldest month.
The months with the lowest humidity in Newcastle, Australia, are August and September, with an average relative humidity of 69%.
August is the month with the least rainfall in Newcastle, Australia. Rain falls for 10.2 days and accumulates 34mm (1.34") of precipitation.
With an average sea temperature of 18.9°C (66°F), August is the month with the coldest seawater in Newcastle, Australia.
November and December, with an average of 9.8h of sunshine, are months with the most sunshine in Newcastle.
With an average of 14h and 18min of daylight, December has the longest days of the year in Newcastle.
Average temperature
Newcastle, Australia
The warmest month (with the highest average high temperature) is January (26.7°C).
The month with the lowest average high temperature is July (16.3°C).
The month with the highest average low temperature is January (20.3°C).
The coldest month (with the lowest average low temperature) is August (10.8°C).
Average pressure
Newcastle, Australia
- Average pressure in January:
1012.8mbar - Average pressure in February:
1014.6mbar - Average pressure in March:
1017mbar - Average pressure in April:
1019.1mbar - Average pressure in May:
1020.2mbar - Average pressure in June:
1020.9mbar
- Average pressure in July:
1020.6mbar - Average pressure in August:
1018.2mbar - Average pressure in September:
1017.4mbar - Average pressure in October:
1017.8mbar - Average pressure in November:
1014.8mbar - Average pressure in December:
1013.4mbar
The month with the highest atmospheric pressure is June (1020.9mbar).
The month with the lowest atmospheric pressure is January (1012.8mbar).
Average wind speed
Newcastle, Australia
- Average wind speed in January:
16.1km/h - Average wind speed in February:
15.5km/h - Average wind speed in March:
15.3km/h - Average wind speed in April:
14.1km/h - Average wind speed in May:
15.3km/h - Average wind speed in June:
16.4km/h
- Average wind speed in July:
16.5km/h - Average wind speed in August:
16.7km/h - Average wind speed in September:
15.8km/h - Average wind speed in October:
15.7km/h - Average wind speed in November:
15.1km/h - Average wind speed in December:
15.8km/h
The windiest month (with the highest average wind speed) is August (16.7km/h).
The calmest month (with the lowest average wind speed) is April (14.1km/h).
Average humidity
Newcastle, Australia
The month with the highest relative humidity is February (77%).
The months with the lowest relative humidity are August and September (69%).
Average rainfall
Newcastle, Australia
The wettest month (with the highest rainfall) is February (79mm).
The driest month (with the least rainfall) is August (34mm).
Average rainfall days
Newcastle, Australia
- Average rainfall days in January:
13.3 days - Average rainfall days in February:
14.7 days - Average rainfall days in March:
15.6 days - Average rainfall days in April:
14.8 days - Average rainfall days in May:
12.8 days - Average rainfall days in June:
15.2 days
- Average rainfall days in July:
12.3 days - Average rainfall days in August:
10.2 days - Average rainfall days in September:
10.7 days - Average rainfall days in October:
12.2 days - Average rainfall days in November:
15.1 days - Average rainfall days in December:
14 days
The month with the highest number of rainy days is March (15.6 days).
The month with the least rainy days is August (10.2 days).
Average sea temperature
Newcastle, Australia
The best month for swimming (with the highest average sea temperature) is February (24°C).
The coldest month (with the lowest average sea temperature) is August (18.9°C).
Average daylight / Average sunshine
Newcastle, Australia
- Average daylight in January:
14h and 0min - Average daylight in February:
13h and 18min - Average daylight in March:
12h and 18min - Average daylight in April:
11h and 18min - Average daylight in May:
10h and 24min - Average daylight in June:
10h and 0min
- Average daylight in July:
10h and 12min - Average daylight in August:
10h and 54min - Average daylight in September:
11h and 54min - Average daylight in October:
12h and 54min - Average daylight in November:
13h and 48min - Average daylight in December:
14h and 18min
The month with the longest days is December (Average daylight: 14h and 18min).
The month with the shortest days is June (Average daylight: 10h and 0min).
- Average sunshine in January:
8h and 42min - Average sunshine in February:
7h and 42min - Average sunshine in March:
8h and 0min - Average sunshine in April:
8h and 0min - Average sunshine in May:
7h and 30min - Average sunshine in June:
5h and 48min
- Average sunshine in July:
7h and 36min - Average sunshine in August:
8h and 30min - Average sunshine in September:
8h and 48min - Average sunshine in October:
8h and 30min - Average sunshine in November:
9h and 48min - Average sunshine in December:
9h and 48min
The months with the most sunshine are November and December (Average sunshine: 9h and 48min).
The month with the least sunshine is June (Average sunshine: 5h and 48min).
Average sunshine days
Newcastle, Australia
- Average sunshine days in January:
15.4 days - Average sunshine days in February:
12.4 days - Average sunshine days in March:
12.7 days - Average sunshine days in April:
13.1 days - Average sunshine days in May:
16.6 days - Average sunshine days in June:
13.4 days
- Average sunshine days in July:
16.4 days - Average sunshine days in August:
18.3 days - Average sunshine days in September:
17.7 days - Average sunshine days in October:
15.7 days - Average sunshine days in November:
12.8 days - Average sunshine days in December:
14.5 days
The month with the most sunshine days is August (18.3 days).
The month with the least sunshine days is February (12.4 days).
Average UV index
Newcastle, Australia
The months with the highest UV index are January, February, November and December (UV index 6).
The months with the lowest UV index are May, June, July and August (UV index 4).
Average cloud cover
Newcastle, Australia
The month with the most cloud cover is February (Cloud cover 39).
The months with the least cloud cover are August and September (Cloud cover 24).
Average visibility
Newcastle, Australia
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
