Mount Isa weather in December
In December, Mount Isa sees average daytime highs of 36°C and overnight lows near 24°C, with 62 mm of rain across 7.5 wet days and about 13.2 hours of daylight. It is the 1st-warmest and 3rd-wettest month of the year here.
Day-to-day highs hold fairly steady near 36°C through the month. The sky is clear or mostly clear about 51% of the time in December, and the air most often feels dry.
Daylight stretches from about 13 h 12 min at the start of December to 13 h 12 min by month's end. Set against the rest of the year, December is Mount Isa's 10th-clearest and 11th-windiest month. For the whole year in context, see Mount Isa's year-round climate.
- Daytime high
- 36°
- 1st warmest
- Overnight low
- 24°
- 11th coldest
- Rainfall
- 62 mm
- 7.5 wet days
- Daylight
- 13 h 18 min
- 6:01 AM – 7:16 PM
- Cloud cover
- 43%
- 10th clearest
- Wind
- 15 km/h
- 11th windiest
- Solar energy
- 7.16 kWh/m²
- Travel score
- 2.1
- out of 10
Mount Isa is city in Queensland, Australia.
- Air quality
- Good
- PM10 29.5 µg/m³ · 2019
- Founded
- 1923
Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.
Temperature in December
Day-to-day highs hold fairly steady near 36°C through the month.
A typical December day in Mount Isa reaches about 36°C in the afternoon and slips back to 24°C overnight — a 12°C spread between the day's warmth and the night's chill. On most days the high lands between 31°C and 40°C. Set against its neighbours, December runs on par with November and about 1°C warmer than January.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°C) | 37 | 37 | 37 | 37 | 37 | 37 | 37 | 37 | 37 | 36 | 36 | 36 | 36 | 36 | 36 | 36 | 36 | 36 | 36 | 36 | 36 | 36 | 36 | 36 | 36 | 36 | 36 | 36 | 36 | 36 | 36 |
| Avg low (°C) | 23 | 23 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 |
| Avg high (°C) | Avg low (°C) | |
|---|---|---|
| 1 | 37 | 23 |
| 2 | 37 | 23 |
| 3 | 37 | 24 |
| 4 | 37 | 24 |
| 5 | 37 | 24 |
| 6 | 37 | 24 |
| 7 | 37 | 24 |
| 8 | 37 | 24 |
| 9 | 37 | 24 |
| 10 | 36 | 24 |
| 11 | 36 | 24 |
| 12 | 36 | 24 |
| 13 | 36 | 24 |
| 14 | 36 | 24 |
| 15 | 36 | 24 |
| 16 | 36 | 24 |
| 17 | 36 | 24 |
| 18 | 36 | 24 |
| 19 | 36 | 24 |
| 20 | 36 | 24 |
| 21 | 36 | 24 |
| 22 | 36 | 24 |
| 23 | 36 | 24 |
| 24 | 36 | 24 |
| 25 | 36 | 24 |
| 26 | 36 | 24 |
| 27 | 36 | 24 |
| 28 | 36 | 24 |
| 29 | 36 | 24 |
| 30 | 36 | 24 |
| 31 | 36 | 24 |
How December really feels in Mount Isa
Once humidity and wind are folded in, December averages 31 days that feel above 32°C and 0 that feel at or below 0°C — the comfort signal a plain temperature reading hides.
The story in December is heat — humidity pushes the afternoon "feels like" well above the raw temperature.
Mount Isa weather by month
How December compares with the rest of the year at a glance. December is the 1st-warmest and 3rd-wettest month here — the current month is highlighted below.
| Month | High / Low (°C) | Rainfall (mm) | Wet days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|
| Jan | 35° / 24° | 104 | 10.1 | 13.1 | 2.4 |
| Feb | 35° / 24° | 87 | 8.9 | 12.7 | 2.8 |
| Mar | 34° / 22° | 61 | 4.5 | 12.1 | 3.5 |
| Apr | 32° / 19° | 14 | 1.3 | 11.5 | 5.3 |
| May | 27° / 15° | 7 | 1 | 11 | 8.2 |
| Jun | 25° / 11° | 6 | 0.8 | 10.8 | 9.2 |
| Jul | 25° / 10° | 2 | 0.5 | 10.9 | 9.4 |
| Aug | 27° / 12° | 2 | 0.4 | 11.3 | 8.8 |
| Sep | 31° / 16° | 6 | 0.9 | 11.9 | 5.9 |
| Oct | 34° / 20° | 12 | 1.8 | 12.5 | 3.8 |
| Nov | 36° / 22° | 27 | 5 | 13 | 2.5 |
| Dec | 36° / 24° | 62 | 7.5 | 13.2 | 2.1 |
Cloud cover in December
The sky is clear or mostly clear about 51% of the time in December.
Beyond those clear spells, partly cloudy skies cover about 20% of December, with mostly cloudy or overcast conditions the remaining 29%. Skies tend to cloud over as the month goes on.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Clearer (%) | 83 | 83 | 81 | 81 | 80 | 79 | 78 | 77 | 76 | 74 | 73 | 72 | 71 | 70 | 69 | 68 | 68 | 67 | 67 | 66 | 66 | 65 | 65 | 65 | 65 | 65 | 64 | 64 | 63 | 63 | 63 |
| Cloudier (%) | 17 | 17 | 19 | 19 | 20 | 21 | 22 | 23 | 24 | 26 | 27 | 28 | 29 | 30 | 31 | 32 | 32 | 33 | 33 | 34 | 34 | 35 | 35 | 35 | 35 | 35 | 36 | 36 | 37 | 37 | 37 |
| Clearer (%) | Cloudier (%) | |
|---|---|---|
| 1 | 83 | 17 |
| 2 | 83 | 17 |
| 3 | 81 | 19 |
| 4 | 81 | 19 |
| 5 | 80 | 20 |
| 6 | 79 | 21 |
| 7 | 78 | 22 |
| 8 | 77 | 23 |
| 9 | 76 | 24 |
| 10 | 74 | 26 |
| 11 | 73 | 27 |
| 12 | 72 | 28 |
| 13 | 71 | 29 |
| 14 | 70 | 30 |
| 15 | 69 | 31 |
| 16 | 68 | 32 |
| 17 | 68 | 32 |
| 18 | 67 | 33 |
| 19 | 67 | 33 |
| 20 | 66 | 34 |
| 21 | 66 | 34 |
| 22 | 65 | 35 |
| 23 | 65 | 35 |
| 24 | 65 | 35 |
| 25 | 65 | 35 |
| 26 | 65 | 35 |
| 27 | 64 | 36 |
| 28 | 64 | 36 |
| 29 | 63 | 37 |
| 30 | 63 | 37 |
| 31 | 63 | 37 |
Chance of precipitation in December
Mount Isa gets around 62 mm of rain over 7.5 wet days in December. The line is the day-by-day chance of measurable precipitation.
Day to day, the chance of measurable rain averages around 25% and peaks near 31% on the wettest days. The odds climb toward the end of the month.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Rain chance (%) | 19 | 19 | 19 | 19 | 20 | 20 | 20 | 21 | 21 | 22 | 22 | 23 | 23 | 24 | 25 | 25 | 25 | 26 | 26 | 27 | 27 | 28 | 28 | 28 | 29 | 29 | 29 | 30 | 30 | 31 | 31 |
| Rain chance (%) | |
|---|---|
| 1 | 19 |
| 2 | 19 |
| 3 | 19 |
| 4 | 19 |
| 5 | 20 |
| 6 | 20 |
| 7 | 20 |
| 8 | 21 |
| 9 | 21 |
| 10 | 22 |
| 11 | 22 |
| 12 | 23 |
| 13 | 23 |
| 14 | 24 |
| 15 | 25 |
| 16 | 25 |
| 17 | 25 |
| 18 | 26 |
| 19 | 26 |
| 20 | 27 |
| 21 | 27 |
| 22 | 28 |
| 23 | 28 |
| 24 | 28 |
| 25 | 29 |
| 26 | 29 |
| 27 | 29 |
| 28 | 30 |
| 29 | 30 |
| 30 | 31 |
| 31 | 31 |
Humidity in December
Most of December feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.
By dew point, December lands in the dry band about 40% of days. Sticky, muggy-or-worse air turns up on roughly 29% of them.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Dry (%) | 53 | 52 | 52 | 51 | 51 | 51 | 50 | 49 | 48 | 46 | 45 | 43 | 42 | 40 | 39 | 38 | 36 | 35 | 34 | 34 | 33 | 32 | 31 | 31 | 31 | 30 | 30 | 30 | 29 | 29 | 29 |
| Comfortable (%) | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 15 | 15 | 15 | 15 | 16 | 16 |
| Humid (%) | 14 | 14 | 14 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 16 | 16 | 16 | 17 | 17 | 17 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 18 |
| Muggy (%) | 14 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 16 | 16 | 17 | 17 | 18 | 18 | 18 | 19 | 19 | 19 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 20 | 19 | 19 | 18 | 18 | 17 |
| Oppressive (%) | 4 | 4 | 4 | 4 | 4 | 4 | 5 | 5 | 6 | 7 | 8 | 9 | 10 | 10 | 11 | 12 | 13 | 14 | 14 | 15 | 15 | 16 | 16 | 17 | 17 | 17 | 18 | 18 | 19 | 20 | 20 |
| Dry (%) | Comfortable (%) | Humid (%) | Muggy (%) | Oppressive (%) | |
|---|---|---|---|---|---|
| 1 | 53 | 15 | 14 | 14 | 4 |
| 2 | 52 | 15 | 14 | 15 | 4 |
| 3 | 52 | 15 | 14 | 15 | 4 |
| 4 | 51 | 15 | 15 | 15 | 4 |
| 5 | 51 | 15 | 15 | 15 | 4 |
| 6 | 51 | 15 | 15 | 15 | 4 |
| 7 | 50 | 15 | 15 | 15 | 5 |
| 8 | 49 | 15 | 15 | 15 | 5 |
| 9 | 48 | 15 | 15 | 16 | 6 |
| 10 | 46 | 15 | 15 | 16 | 7 |
| 11 | 45 | 15 | 16 | 17 | 8 |
| 12 | 43 | 15 | 16 | 17 | 9 |
| 13 | 42 | 15 | 16 | 18 | 10 |
| 14 | 40 | 15 | 17 | 18 | 10 |
| 15 | 39 | 14 | 17 | 18 | 11 |
| 16 | 38 | 14 | 17 | 19 | 12 |
| 17 | 36 | 14 | 18 | 19 | 13 |
| 18 | 35 | 14 | 18 | 19 | 14 |
| 19 | 34 | 14 | 18 | 20 | 14 |
| 20 | 34 | 14 | 18 | 20 | 15 |
| 21 | 33 | 14 | 18 | 20 | 15 |
| 22 | 32 | 14 | 18 | 20 | 16 |
| 23 | 31 | 14 | 18 | 20 | 16 |
| 24 | 31 | 14 | 18 | 20 | 17 |
| 25 | 31 | 14 | 18 | 20 | 17 |
| 26 | 30 | 15 | 18 | 20 | 17 |
| 27 | 30 | 15 | 18 | 19 | 18 |
| 28 | 30 | 15 | 18 | 19 | 18 |
| 29 | 29 | 15 | 18 | 18 | 19 |
| 30 | 29 | 16 | 18 | 18 | 20 |
| 31 | 29 | 16 | 18 | 17 | 20 |
Wind in December
Winds average 15 km/h in December.
Across December, daily wind ranges from about 15 km/h on the calmest days to 16 km/h at its breeziest. It stays fairly steady from day to day.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Wind speed (km/h) | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 16 | 16 |
| Feels | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze |
| Wind speed (km/h) | Feels | |
|---|---|---|
| 1 | 15 | light breeze |
| 2 | 15 | light breeze |
| 3 | 15 | light breeze |
| 4 | 15 | light breeze |
| 5 | 15 | light breeze |
| 6 | 15 | light breeze |
| 7 | 15 | light breeze |
| 8 | 15 | light breeze |
| 9 | 15 | light breeze |
| 10 | 15 | light breeze |
| 11 | 15 | light breeze |
| 12 | 15 | light breeze |
| 13 | 15 | light breeze |
| 14 | 15 | light breeze |
| 15 | 15 | light breeze |
| 16 | 15 | light breeze |
| 17 | 15 | light breeze |
| 18 | 15 | light breeze |
| 19 | 15 | light breeze |
| 20 | 15 | light breeze |
| 21 | 15 | light breeze |
| 22 | 15 | light breeze |
| 23 | 15 | light breeze |
| 24 | 15 | light breeze |
| 25 | 15 | light breeze |
| 26 | 15 | light breeze |
| 27 | 15 | light breeze |
| 28 | 15 | light breeze |
| 29 | 15 | light breeze |
| 30 | 16 | light breeze |
| 31 | 16 | light breeze |
Sunrise & sunset in December
Daylight runs from about 13 h 12 min at the start of December to 13 h 12 min by month's end. The lit band spans sunrise to sunset each day.
Days grow by about 0 minutes over December. Sunrise moves from 5:57 AM to 6:08 AM, and sunset from 7:07 PM to 7:22 PM.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight (h) | 13.2 | 13.2 | 13.2 | 13.2 | 13.2 | 13.2 | 13.2 | 13.2 | 13.2 | 13.2 | 13.2 | 13.2 | 13.2 | 13.2 | 13.2 | 13.3 | 13.3 | 13.3 | 13.3 | 13.3 | 13.3 | 13.3 | 13.3 | 13.3 | 13.3 | 13.3 | 13.3 | 13.3 | 13.2 | 13.2 | 13.2 |
| Sunrise (AM) | 5:57 | 5:57 | 5:57 | 5:57 | 5:57 | 5:58 | 5:58 | 5:58 | 5:58 | 5:59 | 5:59 | 5:59 | 6:00 | 6:00 | 6:00 | 6:01 | 6:01 | 6:01 | 6:02 | 6:02 | 6:03 | 6:03 | 6:04 | 6:04 | 6:05 | 6:05 | 6:06 | 6:06 | 6:07 | 6:07 | 6:08 |
| Sunset (PM) | 7:07 | 7:07 | 7:08 | 7:09 | 7:09 | 7:10 | 7:11 | 7:11 | 7:12 | 7:12 | 7:13 | 7:13 | 7:14 | 7:15 | 7:15 | 7:16 | 7:16 | 7:17 | 7:17 | 7:18 | 7:18 | 7:19 | 7:19 | 7:20 | 7:20 | 7:21 | 7:21 | 7:21 | 7:22 | 7:22 | 7:22 |
| Daylight (h) | Sunrise (AM) | Sunset (PM) | |
|---|---|---|---|
| 1 | 13.2 | 5:57 | 7:07 |
| 2 | 13.2 | 5:57 | 7:07 |
| 3 | 13.2 | 5:57 | 7:08 |
| 4 | 13.2 | 5:57 | 7:09 |
| 5 | 13.2 | 5:57 | 7:09 |
| 6 | 13.2 | 5:58 | 7:10 |
| 7 | 13.2 | 5:58 | 7:11 |
| 8 | 13.2 | 5:58 | 7:11 |
| 9 | 13.2 | 5:58 | 7:12 |
| 10 | 13.2 | 5:59 | 7:12 |
| 11 | 13.2 | 5:59 | 7:13 |
| 12 | 13.2 | 5:59 | 7:13 |
| 13 | 13.2 | 6:00 | 7:14 |
| 14 | 13.2 | 6:00 | 7:15 |
| 15 | 13.2 | 6:00 | 7:15 |
| 16 | 13.3 | 6:01 | 7:16 |
| 17 | 13.3 | 6:01 | 7:16 |
| 18 | 13.3 | 6:01 | 7:17 |
| 19 | 13.3 | 6:02 | 7:17 |
| 20 | 13.3 | 6:02 | 7:18 |
| 21 | 13.3 | 6:03 | 7:18 |
| 22 | 13.3 | 6:03 | 7:19 |
| 23 | 13.3 | 6:04 | 7:19 |
| 24 | 13.3 | 6:04 | 7:20 |
| 25 | 13.3 | 6:05 | 7:20 |
| 26 | 13.3 | 6:05 | 7:21 |
| 27 | 13.3 | 6:06 | 7:21 |
| 28 | 13.3 | 6:06 | 7:21 |
| 29 | 13.2 | 6:07 | 7:22 |
| 30 | 13.2 | 6:07 | 7:22 |
| 31 | 13.2 | 6:08 | 7:22 |
Solar energy in December
Average shortwave solar energy reaching the ground each day in December, about 7.16 kWh/m².
For context, solar energy here swings from a low near 4.45 kWh/m² to a high of 7.41 kWh/m² in November across the year — December's 7.16 kWh/m² sits near the top of that range.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Solar energy (kWh/m²) | 7.5 | 7.5 | 7.5 | 7.5 | 7.5 | 7.4 | 7.4 | 7.4 | 7.4 | 7.3 | 7.3 | 7.3 | 7.2 | 7.2 | 7.2 | 7.2 | 7.1 | 7.1 | 7.1 | 7.1 | 7.1 | 7.1 | 7.1 | 7.1 | 7.1 | 7.1 | 7.1 | 7.1 | 7.1 | 7.1 | 7.1 |
| Level | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense | Intense |
| Solar energy (kWh/m²) | Level | |
|---|---|---|
| 1 | 7.5 | Intense |
| 2 | 7.5 | Intense |
| 3 | 7.5 | Intense |
| 4 | 7.5 | Intense |
| 5 | 7.5 | Intense |
| 6 | 7.4 | Intense |
| 7 | 7.4 | Intense |
| 8 | 7.4 | Intense |
| 9 | 7.4 | Intense |
| 10 | 7.3 | Intense |
| 11 | 7.3 | Intense |
| 12 | 7.3 | Intense |
| 13 | 7.2 | Intense |
| 14 | 7.2 | Intense |
| 15 | 7.2 | Intense |
| 16 | 7.2 | Intense |
| 17 | 7.1 | Intense |
| 18 | 7.1 | Intense |
| 19 | 7.1 | Intense |
| 20 | 7.1 | Intense |
| 21 | 7.1 | Intense |
| 22 | 7.1 | Intense |
| 23 | 7.1 | Intense |
| 24 | 7.1 | Intense |
| 25 | 7.1 | Intense |
| 26 | 7.1 | Intense |
| 27 | 7.1 | Intense |
| 28 | 7.1 | Intense |
| 29 | 7.1 | Intense |
| 30 | 7.1 | Intense |
| 31 | 7.1 | Intense |
Is December a good time to visit Mount Isa?
Our two travel scores rate December for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).
December is a weaker month for outdoor sightseeing in Mount Isa.
What to pack for Mount Isa in December
From December's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In December, Mount Isa sees daytime highs around 36°C and nights near 24°C. Pack light clothes and sun protection. About 8 days see rain.
UV index in Mount Isa in December
Clear-sky midday UV in December peaks around 14 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Mount Isa peaks around February 8 at about 16 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 21 at about 7 (high).
The index reaches 3 or more — the level where the WHO recommends sun protection — every month of the year.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index (midday) | 16 | 16 | 14 | 11 | 8 | 7 | 7 | 9 | 10 | 13 | 14 | 14 |
| Level | Extreme | Extreme | Extreme | Extreme | Very high | High | High | Very high | Extreme | Extreme | Extreme | Extreme |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 16 | Extreme |
| Feb | 16 | Extreme |
| Mar | 14 | Extreme |
| Apr | 11 | Extreme |
| May | 8 | Very high |
| Jun | 7 | High |
| Jul | 7 | High |
| Aug | 9 | Very high |
| Sep | 10 | Extreme |
| Oct | 13 | Extreme |
| Nov | 14 | Extreme |
| Dec | 14 | Extreme |
Air quality in Mount Isa in December
Average fine-particle pollution (PM2.5) through the year — so you can see where December falls, not just the annual average.
Air quality in Mount Isa is worst in October — around 26 µg/m³ PM2.5 (moderate), about 2.4× the cleanest month (March, 11 µg/m³).
Modeled monthly averages (CAMS reanalysis, 2015–2024).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PM2.5 (µg/m³) | 14 | 11 | 11 | 17 | 19 | 18 | 17 | 19 | 22 | 26 | 20 | 24 |
| Level | Moderate | Good | Good | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 14 | Moderate |
| Feb | 11 | Good |
| Mar | 11 | Good |
| Apr | 17 | Moderate |
| May | 19 | Moderate |
| Jun | 18 | Moderate |
| Jul | 17 | Moderate |
| Aug | 19 | Moderate |
| Sep | 22 | Moderate |
| Oct | 26 | Moderate |
| Nov | 20 | Moderate |
| Dec | 24 | Moderate |
Where is Mount Isa?
Mount Isa sits at 20.7°S, 139.5°E, 363 m above sea level, in Australia. The nearest listed city is Alice Springs, 666 km away.
Topography around Mount Isa
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Mount Isa.
Within 3 km, the terrain around Mount Isa has only modest variations in elevation — a maximum elevation change of 243 m around an average of 364 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 341 m; within 80 km, significant variations in elevation — a maximum elevation change of 433 m.
The land around Mount Isa is covered by grassland (33%), artificial surfaces (29%) and bare terrain (20%) within 3 km, grassland (80%) within 16 km, and grassland (84%) within 80 km.
Australia travel facts
- Travel advisory
- Level 1
- Exercise Normal Precautions
- Power plugs
- Type I
- 230 V · 50 Hz
- Prices
- ≈ 90% of US
- price level, 2025
- GDP per capita
- $65,130
- 2025
- Happiness
- 6.9 / 10
- World Happiness, 2025
- Homicide rate
- 0.9
- per 100k, 2023
- Road deaths
- 4.9
- per 100k/yr, 2019
- Income group
- High
- World Bank
- Religion
Sources: World Bank, US State Department, World Happiness Report, WHO/UNICEF, EF EPI, CIA World Factbook.
Data sources
Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for Mount Isa (-20.7252°, 139.4973°, elevation 363 m), computed from hourly ERA5 reanalysis — contains modified Copernicus Climate Change Service information. Sun figures are astronomical calculations, not observations. City data © GeoNames, CC BY 4.0. Map outlines from Natural Earth (public domain); interactive map © Google. UV index is derived from CAMS (Copernicus Atmosphere Monitoring Service) clear-sky UV data — contains modified Copernicus Atmosphere Monitoring Service information. Monthly air-quality (PM2.5) seasonality is from the CAMS EAC4 reanalysis (Copernicus Atmosphere Monitoring Service), scaled to the WHO annual mean where available. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).