Climate and monthly weather forecastNarellan, Australia
Climate and monthly weather forecast
Weather in January
January, the same as December, is another warm summer month in Narellan, Australia, with an average temperature varying between 28.7°C (83.7°F) and 18.3°C (64.9°F). January, having an average high-temperature of 28.7°C (83.7°F) and an average low-temperature of 18.3°C (64.9°F), is the warmest month. January's heat index is calculated to be a hot 32°C (89.6°F). Weather in January »Weather in February
The last month of the summer, February, is also a moderately hot month in Narellan, Australia, with an average temperature fluctuating between 27.2°C (81°F) and 17.7°C (63.9°F). February brings an average high-temperature of a still warm 27.2°C (81°F), nearly identical to the preceding month. Weather in February »Weather in March
March, the first month of the autumn in Narellan, is also a moderately hot month, with an average temperature fluctuating between 16.8°C (62.2°F) and 25.5°C (77.9°F). March's advent notes a subtle adjustment in average high-temperature to a still warm 25.5°C (77.9°F) from February. Weather in March »Weather in April
April, the same as March, in Narellan, Australia, is an agreeable autumn month, with an average temperature fluctuating between 13.8°C (56.8°F) and 22.6°C (72.7°F). Narellan experiences an average high-temperature of a pleasant 22.6°C (72.7°F) with the onset of April, subtly varied from March's 25.5°C (77.9°F). Weather in April »Weather in May
The last month of the autumn, May, is also an enjoyable month in Narellan, Australia, with an average temperature ranging between min 10.5°C (50.9°F) and max 19.6°C (67.3°F). Narellan's progression into May involves a gentle drop in the average high-temperature, from a pleasant 22.6°C (72.7°F) in April to an enjoyable 19.6°C (67.3°F). Weather in May »Weather in June
The first month of the winter, June, is also an enjoyable month in Narellan, Australia, with an average temperature varying between 8.9°C (48°F) and 16.3°C (61.3°F). In Narellan, the months of June and July are known for the lowest temperatures, reaching an average high of 16.3°C (61.3°F). Weather in June »Weather in July
July, the same as June, is another refreshing winter month in Narellan, Australia, with temperature in the range of an average high of 16.3°C (61.3°F) and an average low of 7.6°C (45.7°F). June and July, when the average high-temperature reaches 16.3°C (61.3°F), are the coldest months. Weather in July »Weather in August
The last month of the winter, August, is another comfortable month in Narellan, Australia, with temperature in the range of an average low of 7.8°C (46°F) and an average high of 17.8°C (64°F). Narellan notes an average high-temperature of a still enjoyable 17.8°C (64°F) in August, displaying minor variation from July. Weather in August »Weather in September
September, the first month of the spring in Narellan, is an agreeable month, with an average temperature varying between 20.7°C (69.3°F) and 10.2°C (50.4°F). September's arrival brings an average high-temperature of an agreeable 20.7°C (69.3°F), demonstrating subtle variation from the preceding month. Weather in September »Weather in October
October is a warm spring month in Narellan, Australia, with an average temperature fluctuating between 23.3°C (73.9°F) and 12°C (53.6°F). The shift into October reveals an average high-temperature of a warm 23.3°C (73.9°F), closely mirroring September's climate. Weather in October »Weather in November
November, the last month of the spring in Narellan, is another warm month, with temperature in the range of an average low of 14.8°C (58.6°F) and an average high of 25.7°C (78.3°F). Narellan registers an average high-temperature of a still warm 25.7°C (78.3°F) with the arrival of November, showing minor deviation from the preceding month. Weather in November »Weather in December
The first month of the summer, December, is also a moderately hot month in Narellan, Australia, with an average temperature fluctuating between 16.5°C (61.7°F) and 27.4°C (81.3°F). Transitioning into December, Narellan experiences an average high-temperature of a still warm 27.4°C (81.3°F), marking a minor shift from the preceding month. Weather in December »Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature
Narellan, Australia
The warmest month (with the highest average high temperature) is January (28.7°C).
The months with the lowest average high temperature are June and July (16.3°C).
The month with the highest average low temperature is January (18.3°C).
The coldest month (with the lowest average low temperature) is July (7.6°C).
Average pressure
Narellan, Australia
- Average pressure in January:
1012.8mbar - Average pressure in February:
1014.9mbar - Average pressure in March:
1017.2mbar - Average pressure in April:
1019.3mbar - Average pressure in May:
1020.2mbar - Average pressure in June:
1021mbar
- Average pressure in July:
1020.5mbar - Average pressure in August:
1018.1mbar - Average pressure in September:
1017.1mbar - Average pressure in October:
1017.8mbar - Average pressure in November:
1014.8mbar - Average pressure in December:
1013.3mbar
The month with the highest atmospheric pressure is June (1021mbar).
The month with the lowest atmospheric pressure is January (1012.8mbar).
Average wind speed
Narellan, Australia
- Average wind speed in January:
9.7km/h - Average wind speed in February:
9.4km/h - Average wind speed in March:
9.1km/h - Average wind speed in April:
8.6km/h - Average wind speed in May:
9km/h - Average wind speed in June:
9.4km/h
- Average wind speed in July:
9.5km/h - Average wind speed in August:
10.2km/h - Average wind speed in September:
10.2km/h - Average wind speed in October:
9.5km/h - Average wind speed in November:
9.6km/h - Average wind speed in December:
9.7km/h
The windiest months (with the highest average wind speed) are August and September (10.2km/h).
The calmest month (with the lowest average wind speed) is April (8.6km/h).
Average humidity
Narellan, Australia
The month with the highest relative humidity is June (77%).
The months with the lowest relative humidity are August and September (67%).
Average rainfall
Narellan, Australia
The wettest month (with the highest rainfall) is February (84mm).
The driest month (with the least rainfall) is May (24mm).
Average rainfall days
Narellan, Australia
- Average rainfall days in January:
15.4 days - Average rainfall days in February:
15.2 days - Average rainfall days in March:
14.6 days - Average rainfall days in April:
11.8 days - Average rainfall days in May:
7.9 days - Average rainfall days in June:
9.7 days
- Average rainfall days in July:
8.4 days - Average rainfall days in August:
7.8 days - Average rainfall days in September:
8.7 days - Average rainfall days in October:
11.9 days - Average rainfall days in November:
13.9 days - Average rainfall days in December:
12.6 days
The month with the highest number of rainy days is January (15.4 days).
The month with the least rainy days is August (7.8 days).
Average daylight / Average sunshine
Narellan, Australia
- Average daylight in January:
14h and 6min - Average daylight in February:
13h and 18min - Average daylight in March:
12h and 18min - Average daylight in April:
11h and 12min - Average daylight in May:
10h and 24min - Average daylight in June:
9h and 54min
- Average daylight in July:
10h and 6min - 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 54min - Average daylight in December:
14h and 24min
The month with the longest days is December (Average daylight: 14h and 24min).
The month with the shortest days is June (Average daylight: 9h and 54min).
- Average sunshine in January:
8h and 30min - Average sunshine in February:
7h and 30min - Average sunshine in March:
7h and 42min - Average sunshine in April:
7h and 54min - Average sunshine in May:
7h and 54min - Average sunshine in June:
6h and 0min
- Average sunshine in July:
8h and 12min - Average sunshine in August:
8h and 36min - Average sunshine in September:
8h and 42min - Average sunshine in October:
8h and 24min - Average sunshine in November:
9h and 48min - Average sunshine in December:
9h and 42min
The month with the most sunshine is November (Average sunshine: 9h and 48min).
The month with the least sunshine is June (Average sunshine: 6h and 0min).
Average sunshine days
Narellan, Australia
- Average sunshine days in January:
12.4 days - Average sunshine days in February:
10.6 days - Average sunshine days in March:
12.3 days - Average sunshine days in April:
16.1 days - Average sunshine days in May:
20.8 days - Average sunshine days in June:
18.1 days
- Average sunshine days in July:
20.6 days - Average sunshine days in August:
21.7 days - Average sunshine days in September:
18.4 days - Average sunshine days in October:
16.8 days - Average sunshine days in November:
12.3 days - Average sunshine days in December:
14.4 days
The month with the most sunshine days is August (21.7 days).
The month with the least sunshine days is February (10.6 days).
Average UV index
Narellan, Australia
The months with the highest UV index are January, February and December (UV index 6).
The months with the lowest UV index are April, May, June, July, August and September (UV index 4).
Average cloud cover
Narellan, Australia
The month with the most cloud cover is February (Cloud cover 43).
The month with the least cloud cover is August (Cloud cover 23).
Average visibility
Narellan, Australia
The months with the highest visibility are June and August (10km).
The months with the lowest visibility are January, February, March, April, May, July, September, October, November and December (9km).





