Climate and monthly weather forecastMount Isa, Australia
Climate and monthly weather forecast
Weather in January
January, the same as December, is another torrid summer month in Mount Isa, Australia, with an average temperature varying between 23.8°C (74.8°F) and 36.3°C (97.3°F). Mount Isa indicates an average high-temperature of a still torrid 36.3°C (97.3°F) in January, showing minor variation from December's 37.1°C (98.8°F). Weather in January »Weather in February
February, the last month of the summer in Mount Isa, is another very hot month, with an average temperature ranging between min 23.4°C (74.1°F) and max 35.2°C (95.4°F). The transition from January to February brings an average high-temperature of a still torrid 35.2°C (95.4°F), barely different from January's 36.3°C (97.3°F). Weather in February »Weather in March
The first month of the autumn, March, is also a hot month in Mount Isa, Australia, with an average temperature varying between 34.2°C (93.6°F) and 21.8°C (71.2°F). As March unfolds, the average high-temperature reaches a tropical 34.2°C (93.6°F), hinting at a slight fluctuation from the previous month. Weather in March »Weather in April
April, like March, is a hot autumn month in Mount Isa, Australia, with an average temperature fluctuating between 31.8°C (89.2°F) and 18.5°C (65.3°F). Mount Isa's average high-temperature in April is a still tropical 31.8°C (89.2°F), indicating a subtle variation from March. Weather in April »Weather in May
The last month of the autumn, May, is another warm month in Mount Isa, Australia, with an average temperature fluctuating between 27.8°C (82°F) and 13.9°C (57°F). May's onset corresponds with a subtle shift in the average high-temperature, slightly moving from a tropical 31.8°C (89.2°F) in April to a moderately hot 27.8°C (82°F). Weather in May »Weather in June
The first month of the winter, June, is also a moderately hot month in Mount Isa, Australia, with an average temperature fluctuating between 24.8°C (76.6°F) and 10°C (50°F). As June commences, the average high-temperature subtly reduces, transitioning from a moderately hot 27.8°C (82°F) in May to a still warm 24.8°C (76.6°F). Weather in June »Weather in July
July, like June, in Mount Isa, Australia, is another warm winter month, with an average temperature fluctuating between 8.6°C (47.5°F) and 24.7°C (76.5°F). July is the month when Mount Isa experiences its coldest temperatures, averaging a high of 24.7°C (76.5°F) and a low of 8.6°C (47.5°F). Weather in July »Weather in August
The last month of the winter, August, is another warm month in Mount Isa, Australia, with an average temperature fluctuating between 10.3°C (50.5°F) and 27.3°C (81.1°F). August reports an average high-temperature of a still warm 27.3°C (81.1°F), slightly varied from July's 24.7°C (76.5°F). Weather in August »Weather in September
The first month of the spring, September, is a tropical month in Mount Isa, Australia, with an average temperature varying between 31.2°C (88.2°F) and 14.2°C (57.6°F). As Mount Isa welcomes September, the average high-temperature sees a modest rise, transitioning from a moderately hot 27.3°C (81.1°F) in August to a hot 31.2°C (88.2°F). Weather in September »Weather in October
October, like September, is another hot spring month in Mount Isa, Australia, with an average temperature fluctuating between 18.6°C (65.5°F) and 34.6°C (94.3°F). Mount Isa's weather in October shows a minor rise in the average high-temperature, moving slightly up from September's 31.2°C (88.2°F) to a still hot 34.6°C (94.3°F). Weather in October »Weather in November
November, the last month of the spring in Mount Isa, is a sweltering month, with an average temperature fluctuating between 36.4°C (97.5°F) and 21.4°C (70.5°F). The ushering in of November brings an average high-temperature of a very hot 36.4°C (97.5°F), closely mirroring the 34.6°C (94.3°F) of October. Weather in November »Weather in December
December, the first month of the summer in Mount Isa, is still a torrid month, with an average temperature ranging between max 37.1°C (98.8°F) and min 23.1°C (73.6°F). With its high average temperature of 37.1°C (98.8°F) and a low of 23.1°C (73.6°F), December is regarded as the warmest month. 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 month with the most rainfall. Rain falls for 10.2 days and accumulates 119mm (4.69") of precipitation.
In Mount Isa, Australia, during the entire year, the rain falls for 50.8 days and collects up to 469mm (18.46") of precipitation.
The months with the least sunshine are January through June, with an average of 9h of sunshine.
January through March, October through December, with an average maximum UV index of 12, are months with the highest UV index in Mount Isa, Australia.
With an average relative humidity of 38%, February is the most humid month in Mount Isa, Australia.
With an average of 10h and 54min of daylight, June has the shortest days of the year.
June and July, with an average maximum UV index of 6, are months with the lowest UV index in Mount Isa, Australia.
July stands out as Mount Isa's coldest month, with an average high-temperature of 24.7°C (76.5°F) and a low-temperature of 8.6°C (47.5°F).
July through December, with an average of 10h of sunshine, are months with the most sunshine in Mount Isa.
The month with the least rainfall is August, when the rain falls for 0.9 days and typically collects 4mm (0.16") of precipitation.
The months with the lowest humidity are September and October, with an average relative humidity of 18%.
The warmest period in Mount Isa, Australia, is December, when temperatures fluctuate between an average high of 37.1°C (98.8°F) and a low of 23.1°C (73.6°F).
With an average of 13h and 24min of daylight, December has the longest days of the year.
Mount Isa does not observe Daylight Saving Time (DST). AEST timezone is used over the entire year.
Average temperature
Mount Isa, Australia
The warmest month (with the highest average high temperature) is December (37.1°C).
The month with the lowest average high temperature is July (24.7°C).
The month with the highest average low temperature is January (23.8°C).
The coldest month (with the lowest average low temperature) is July (8.6°C).
Average humidity
Mount Isa, Australia
The month with the highest relative humidity is February (38%).
The months with the lowest relative humidity are September and October (18%).
Average rainfall
Mount Isa, Australia
- Average rainfall in January:
118.8mm - Average rainfall in February:
103.2mm - Average rainfall in March:
65.9mm - Average rainfall in April:
15.4mm - Average rainfall in May:
13.1mm - Average rainfall in June:
6mm
- Average rainfall in July:
5.9mm - Average rainfall in August:
3.7mm - Average rainfall in September:
6.7mm - Average rainfall in October:
19.2mm - Average rainfall in November:
39mm - Average rainfall in December:
72.5mm
The wettest month (with the highest rainfall) is January (118.8mm).
The driest month (with the least rainfall) is August (3.7mm).
Average rainfall days
Mount Isa, Australia
- Average rainfall days in January:
10.2 days - Average rainfall days in February:
9.3 days - Average rainfall days in March:
6 days - Average rainfall days in April:
2.3 days - Average rainfall days in May:
1.8 days - Average rainfall days in June:
1 days
- Average rainfall days in July:
1 days - Average rainfall days in August:
0.9 days - Average rainfall days in September:
1.7 days - Average rainfall days in October:
3.4 days - Average rainfall days in November:
5.5 days - Average rainfall days in December:
7.7 days
The month with the highest number of rainy days is January (10.2 days).
The month with the least rainy days is August (0.9 days).
Average daylight / Average sunshine
Mount Isa, Australia
- Average daylight in January:
13h and 12min - Average daylight in February:
12h and 48min - Average daylight in March:
12h and 12min - Average daylight in April:
11h and 36min - Average daylight in May:
11h and 6min - Average daylight in June:
10h and 54min
- Average daylight in July:
11h and 0min - Average daylight in August:
11h and 24min - Average daylight in September:
12h and 0min - Average daylight in October:
12h and 36min - Average daylight in November:
13h and 6min - Average daylight in December:
13h and 24min
The month with the longest days is December (Average daylight: 13h and 24min).
The month with the shortest days is June (Average daylight: 10h and 54min).
The months with the most sunshine are July, August, September, October, November and December (Average sunshine: 10h).
The months with the least sunshine are January, February, March, April, May and June (Average sunshine: 9h).
Average UV index
Mount Isa, Australia
The months with the highest UV index are January, February, March, October, November and December (UV index 12).
The months with the lowest UV index are June and July (UV index 6).
