Blue Mountains weather in December
In December, Blue Mountains sees average daytime highs of 24°C and overnight lows near 12°C, with 121 mm of rain across 13.4 wet days and about 14.2 hours of daylight. It is the 3rd-warmest and 3rd-wettest month of the year here.
Day-to-day highs hold fairly steady near 24°C through the month. The sky is clear or mostly clear about 32% of the time in December, and the air most often feels dry.
Daylight stretches from about 14 h 06 min at the start of December to 14 h 12 min by month's end. Set against the rest of the year, December is Blue Mountains's 10th-clearest and 8th-windiest month. For the whole year in context, see Blue Mountains's year-round climate.
- Daytime high
- 24°
- 3rd warmest
- Overnight low
- 12°
- 10th coldest
- Rainfall
- 121 mm
- 13.4 wet days
- Daylight
- 14 h 12 min
- 5:48 AM – 8:02 PM
- Cloud cover
- 58%
- 10th clearest
- Wind
- 9 km/h
- 8th windiest
- Solar energy
- 6.58 kWh/m²
- Travel score
- 6.4
- out of 10
Temperature in December
Day-to-day highs hold fairly steady near 24°C through the month.
A typical December day in Blue Mountains reaches about 24°C in the afternoon and slips back to 12°C overnight — a 12°C spread between the day's warmth and the night's chill. On most days the high lands between 18°C and 30°C. Set against its neighbours, December runs about 2°C warmer than November and about 1°C cooler 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) | 23 | 23 | 23 | 23 | 23 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 |
| Avg low (°C) | 11 | 11 | 11 | 11 | 11 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 |
| Avg high (°C) | Avg low (°C) | |
|---|---|---|
| 1 | 23 | 11 |
| 2 | 23 | 11 |
| 3 | 23 | 11 |
| 4 | 23 | 11 |
| 5 | 23 | 11 |
| 6 | 24 | 12 |
| 7 | 24 | 12 |
| 8 | 24 | 12 |
| 9 | 24 | 12 |
| 10 | 24 | 12 |
| 11 | 24 | 12 |
| 12 | 24 | 12 |
| 13 | 24 | 12 |
| 14 | 24 | 12 |
| 15 | 24 | 12 |
| 16 | 24 | 12 |
| 17 | 24 | 12 |
| 18 | 24 | 12 |
| 19 | 24 | 12 |
| 20 | 24 | 12 |
| 21 | 24 | 13 |
| 22 | 24 | 13 |
| 23 | 25 | 13 |
| 24 | 25 | 13 |
| 25 | 25 | 13 |
| 26 | 25 | 13 |
| 27 | 25 | 13 |
| 28 | 25 | 13 |
| 29 | 25 | 13 |
| 30 | 25 | 13 |
| 31 | 25 | 13 |
How December really feels in Blue Mountains
Once humidity and wind are folded in, December averages 0 days that feel above 32°C and 0 that feel at or below 0°C — the comfort signal a plain temperature reading hides.
December sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.
Blue Mountains weather by month
How December compares with the rest of the year at a glance. December is the 3rd-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 | 25° / 14° | 126 | 15.6 | 14 | 6.0 |
| Feb | 24° / 14° | 146 | 15.4 | 13.3 | 5.9 |
| Mar | 22° / 12° | 115 | 15.2 | 12.3 | 6.0 |
| Apr | 19° / 8° | 56 | 9.1 | 11.2 | 6.3 |
| May | 15° / 6° | 48 | 6.6 | 10.3 | 5.3 |
| Jun | 13° / 4° | 62 | 7.5 | 9.8 | 3.7 |
| Jul | 12° / 3° | 37 | 6.3 | 10 | 3.6 |
| Aug | 14° / 3° | 46 | 6.7 | 10.7 | 4.4 |
| Sep | 17° / 5° | 53 | 8.2 | 11.8 | 5.8 |
| Oct | 20° / 8° | 75 | 10.5 | 12.8 | 6.3 |
| Nov | 22° / 10° | 109 | 13.7 | 13.7 | 6.1 |
| Dec | 24° / 12° | 121 | 13.4 | 14.2 | 6.4 |
Cloud cover in December
The sky is clear or mostly clear about 32% of the time in December.
Beyond those clear spells, partly cloudy skies cover about 16% of December, with mostly cloudy or overcast conditions the remaining 52%. Skies tend to open up 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 (%) | 49 | 49 | 49 | 48 | 48 | 47 | 47 | 47 | 47 | 47 | 47 | 46 | 47 | 47 | 47 | 47 | 47 | 47 | 47 | 48 | 48 | 49 | 49 | 50 | 50 | 50 | 50 | 50 | 50 | 50 | 50 |
| Cloudier (%) | 51 | 51 | 51 | 52 | 52 | 53 | 53 | 53 | 53 | 53 | 53 | 54 | 53 | 53 | 53 | 53 | 53 | 53 | 53 | 52 | 52 | 51 | 51 | 50 | 50 | 50 | 50 | 50 | 50 | 50 | 50 |
| Clearer (%) | Cloudier (%) | |
|---|---|---|
| 1 | 49 | 51 |
| 2 | 49 | 51 |
| 3 | 49 | 51 |
| 4 | 48 | 52 |
| 5 | 48 | 52 |
| 6 | 47 | 53 |
| 7 | 47 | 53 |
| 8 | 47 | 53 |
| 9 | 47 | 53 |
| 10 | 47 | 53 |
| 11 | 47 | 53 |
| 12 | 46 | 54 |
| 13 | 47 | 53 |
| 14 | 47 | 53 |
| 15 | 47 | 53 |
| 16 | 47 | 53 |
| 17 | 47 | 53 |
| 18 | 47 | 53 |
| 19 | 47 | 53 |
| 20 | 48 | 52 |
| 21 | 48 | 52 |
| 22 | 49 | 51 |
| 23 | 49 | 51 |
| 24 | 50 | 50 |
| 25 | 50 | 50 |
| 26 | 50 | 50 |
| 27 | 50 | 50 |
| 28 | 50 | 50 |
| 29 | 50 | 50 |
| 30 | 50 | 50 |
| 31 | 50 | 50 |
Chance of precipitation in December
Blue Mountains gets around 121 mm of rain over 13.4 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 45% and peaks near 46% on the wettest days.
| 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 (%) | 46 | 46 | 46 | 45 | 45 | 45 | 45 | 45 | 45 | 44 | 44 | 44 | 44 | 44 | 44 | 45 | 45 | 45 | 45 | 45 | 44 | 44 | 44 | 44 | 44 | 44 | 44 | 44 | 45 | 45 | 45 |
| Rain chance (%) | |
|---|---|
| 1 | 46 |
| 2 | 46 |
| 3 | 46 |
| 4 | 45 |
| 5 | 45 |
| 6 | 45 |
| 7 | 45 |
| 8 | 45 |
| 9 | 45 |
| 10 | 44 |
| 11 | 44 |
| 12 | 44 |
| 13 | 44 |
| 14 | 44 |
| 15 | 44 |
| 16 | 45 |
| 17 | 45 |
| 18 | 45 |
| 19 | 45 |
| 20 | 45 |
| 21 | 44 |
| 22 | 44 |
| 23 | 44 |
| 24 | 44 |
| 25 | 44 |
| 26 | 44 |
| 27 | 44 |
| 28 | 44 |
| 29 | 45 |
| 30 | 45 |
| 31 | 45 |
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 60% of days. It rarely turns muggy — the humid and sticky bands barely register.
| 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 (%) | 71 | 70 | 69 | 69 | 68 | 67 | 67 | 66 | 66 | 65 | 65 | 63 | 63 | 62 | 62 | 61 | 60 | 59 | 58 | 57 | 57 | 56 | 55 | 55 | 54 | 53 | 52 | 50 | 50 | 49 | 48 |
| Comfortable (%) | 23 | 23 | 24 | 24 | 24 | 25 | 25 | 26 | 26 | 27 | 27 | 28 | 28 | 29 | 29 | 30 | 31 | 31 | 32 | 33 | 33 | 34 | 35 | 35 | 35 | 36 | 36 | 37 | 37 | 37 | 37 |
| Humid (%) | 6 | 7 | 7 | 7 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 9 | 9 | 9 | 9 | 9 | 9 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 11 | 11 | 12 | 13 | 13 | 14 | 15 |
| Dry (%) | Comfortable (%) | Humid (%) | |
|---|---|---|---|
| 1 | 71 | 23 | 6 |
| 2 | 70 | 23 | 7 |
| 3 | 69 | 24 | 7 |
| 4 | 69 | 24 | 7 |
| 5 | 68 | 24 | 8 |
| 6 | 67 | 25 | 8 |
| 7 | 67 | 25 | 8 |
| 8 | 66 | 26 | 8 |
| 9 | 66 | 26 | 8 |
| 10 | 65 | 27 | 8 |
| 11 | 65 | 27 | 8 |
| 12 | 63 | 28 | 9 |
| 13 | 63 | 28 | 9 |
| 14 | 62 | 29 | 9 |
| 15 | 62 | 29 | 9 |
| 16 | 61 | 30 | 9 |
| 17 | 60 | 31 | 9 |
| 18 | 59 | 31 | 10 |
| 19 | 58 | 32 | 10 |
| 20 | 57 | 33 | 10 |
| 21 | 57 | 33 | 10 |
| 22 | 56 | 34 | 10 |
| 23 | 55 | 35 | 10 |
| 24 | 55 | 35 | 10 |
| 25 | 54 | 35 | 11 |
| 26 | 53 | 36 | 11 |
| 27 | 52 | 36 | 12 |
| 28 | 50 | 37 | 13 |
| 29 | 50 | 37 | 13 |
| 30 | 49 | 37 | 14 |
| 31 | 48 | 37 | 15 |
Wind in December
Winds average 9 km/h in December.
Across December, daily wind ranges from about 8 km/h on the calmest days to 9 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) | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 |
| Feels | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm | calm |
| Wind speed (km/h) | Feels | |
|---|---|---|
| 1 | 9 | calm |
| 2 | 9 | calm |
| 3 | 9 | calm |
| 4 | 9 | calm |
| 5 | 9 | calm |
| 6 | 9 | calm |
| 7 | 9 | calm |
| 8 | 9 | calm |
| 9 | 9 | calm |
| 10 | 9 | calm |
| 11 | 9 | calm |
| 12 | 9 | calm |
| 13 | 9 | calm |
| 14 | 9 | calm |
| 15 | 9 | calm |
| 16 | 9 | calm |
| 17 | 8 | calm |
| 18 | 8 | calm |
| 19 | 8 | calm |
| 20 | 8 | calm |
| 21 | 8 | calm |
| 22 | 8 | calm |
| 23 | 8 | calm |
| 24 | 8 | calm |
| 25 | 8 | calm |
| 26 | 8 | calm |
| 27 | 8 | calm |
| 28 | 8 | calm |
| 29 | 8 | calm |
| 30 | 8 | calm |
| 31 | 8 | calm |
Sunrise & sunset in December
Daylight runs from about 14 h 06 min at the start of December to 14 h 12 min by month's end. The lit band spans sunrise to sunset each day.
Days grow by about 6 minutes over December. Sunrise moves from 5:46 AM to 5:55 AM, and sunset from 7:51 PM to 8:08 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) | 14.1 | 14.1 | 14.1 | 14.1 | 14.1 | 14.1 | 14.2 | 14.2 | 14.2 | 14.2 | 14.2 | 14.2 | 14.2 | 14.2 | 14.2 | 14.2 | 14.2 | 14.2 | 14.2 | 14.2 | 14.2 | 14.2 | 14.2 | 14.2 | 14.2 | 14.2 | 14.2 | 14.2 | 14.2 | 14.2 | 14.2 |
| Sunrise (AM) | 5:46 | 5:46 | 5:46 | 5:46 | 5:46 | 5:46 | 5:46 | 5:46 | 5:46 | 5:47 | 5:47 | 5:47 | 5:47 | 5:47 | 5:48 | 5:48 | 5:48 | 5:49 | 5:49 | 5:49 | 5:50 | 5:50 | 5:51 | 5:51 | 5:52 | 5:52 | 5:53 | 5:54 | 5:54 | 5:55 | 5:55 |
| Sunset (PM) | 7:51 | 7:52 | 7:52 | 7:53 | 7:54 | 7:55 | 7:56 | 7:56 | 7:57 | 7:58 | 7:58 | 7:59 | 8:00 | 8:00 | 8:01 | 8:02 | 8:02 | 8:03 | 8:03 | 8:04 | 8:04 | 8:05 | 8:05 | 8:06 | 8:06 | 8:07 | 8:07 | 8:07 | 8:08 | 8:08 | 8:08 |
| Daylight (h) | Sunrise (AM) | Sunset (PM) | |
|---|---|---|---|
| 1 | 14.1 | 5:46 | 7:51 |
| 2 | 14.1 | 5:46 | 7:52 |
| 3 | 14.1 | 5:46 | 7:52 |
| 4 | 14.1 | 5:46 | 7:53 |
| 5 | 14.1 | 5:46 | 7:54 |
| 6 | 14.1 | 5:46 | 7:55 |
| 7 | 14.2 | 5:46 | 7:56 |
| 8 | 14.2 | 5:46 | 7:56 |
| 9 | 14.2 | 5:46 | 7:57 |
| 10 | 14.2 | 5:47 | 7:58 |
| 11 | 14.2 | 5:47 | 7:58 |
| 12 | 14.2 | 5:47 | 7:59 |
| 13 | 14.2 | 5:47 | 8:00 |
| 14 | 14.2 | 5:47 | 8:00 |
| 15 | 14.2 | 5:48 | 8:01 |
| 16 | 14.2 | 5:48 | 8:02 |
| 17 | 14.2 | 5:48 | 8:02 |
| 18 | 14.2 | 5:49 | 8:03 |
| 19 | 14.2 | 5:49 | 8:03 |
| 20 | 14.2 | 5:49 | 8:04 |
| 21 | 14.2 | 5:50 | 8:04 |
| 22 | 14.2 | 5:50 | 8:05 |
| 23 | 14.2 | 5:51 | 8:05 |
| 24 | 14.2 | 5:51 | 8:06 |
| 25 | 14.2 | 5:52 | 8:06 |
| 26 | 14.2 | 5:52 | 8:07 |
| 27 | 14.2 | 5:53 | 8:07 |
| 28 | 14.2 | 5:54 | 8:07 |
| 29 | 14.2 | 5:54 | 8:08 |
| 30 | 14.2 | 5:55 | 8:08 |
| 31 | 14.2 | 5:55 | 8:08 |
Solar energy in December
Average shortwave solar energy reaching the ground each day in December, about 6.58 kWh/m² — the sunniest month for solar.
For context, solar energy here swings from a low near 2.4 kWh/m² to a high of 6.58 kWh/m² in December across the year — December's 6.58 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) | 6.5 | 6.5 | 6.5 | 6.5 | 6.5 | 6.5 | 6.5 | 6.5 | 6.5 | 6.5 | 6.5 | 6.5 | 6.5 | 6.6 | 6.6 | 6.6 | 6.6 | 6.6 | 6.6 | 6.7 | 6.7 | 6.7 | 6.7 | 6.8 | 6.8 | 6.8 | 6.9 | 6.9 | 6.9 | 7.0 | 7.0 |
| 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 | 6.5 | Intense |
| 2 | 6.5 | Intense |
| 3 | 6.5 | Intense |
| 4 | 6.5 | Intense |
| 5 | 6.5 | Intense |
| 6 | 6.5 | Intense |
| 7 | 6.5 | Intense |
| 8 | 6.5 | Intense |
| 9 | 6.5 | Intense |
| 10 | 6.5 | Intense |
| 11 | 6.5 | Intense |
| 12 | 6.5 | Intense |
| 13 | 6.5 | Intense |
| 14 | 6.6 | Intense |
| 15 | 6.6 | Intense |
| 16 | 6.6 | Intense |
| 17 | 6.6 | Intense |
| 18 | 6.6 | Intense |
| 19 | 6.6 | Intense |
| 20 | 6.7 | Intense |
| 21 | 6.7 | Intense |
| 22 | 6.7 | Intense |
| 23 | 6.7 | Intense |
| 24 | 6.8 | Intense |
| 25 | 6.8 | Intense |
| 26 | 6.8 | Intense |
| 27 | 6.9 | Intense |
| 28 | 6.9 | Intense |
| 29 | 6.9 | Intense |
| 30 | 7.0 | Intense |
| 31 | 7.0 | Intense |
Hazard calendar for Blue Mountains
In December, Blue Mountains sits inside its rainy season season. The full year is below, with each hazard's peak months called out.
Blue Mountains's rainy season runs October–March, when most of the year's rain falls.
Is December a good time to visit Blue Mountains?
Our two travel scores rate December for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).
December is a reasonable time to visit Blue Mountains for sightseeing.
What to pack for Blue Mountains in December
From December's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In December, Blue Mountains sees daytime highs around 24°C and nights near 12°C. Pack sun protection. Worth having: light clothes and rain gear. About 13 days see rain.
UV index in Blue Mountains in December
Clear-sky midday UV in December peaks around 12 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Blue Mountains peaks around January 18 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 18 at about 3 (moderate).
The index reaches 3 or more — the level where the WHO recommends sun protection — in 11 months of the year.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index (midday) | 13 | 12 | 9 | 6 | 4 | 2 | 3 | 4 | 6 | 9 | 10 | 12 |
| Level | Extreme | Extreme | Very high | High | Moderate | Moderate | Moderate | Moderate | High | Very high | Extreme | Extreme |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 13 | Extreme |
| Feb | 12 | Extreme |
| Mar | 9 | Very high |
| Apr | 6 | High |
| May | 4 | Moderate |
| Jun | 2 | Moderate |
| Jul | 3 | Moderate |
| Aug | 4 | Moderate |
| Sep | 6 | High |
| Oct | 9 | Very high |
| Nov | 10 | Extreme |
| Dec | 12 | Extreme |
Air quality in Blue Mountains 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 Blue Mountains is worst in December — around 49 µg/m³ PM2.5 (poor), about 12.5× the cleanest month (July, 4 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) | 11 | 5 | 6 | 9 | 14 | 8 | 4 | 5 | 6 | 7 | 21 | 49 |
| Level | Good | Good | Good | Good | Moderate | Good | Good | Good | Good | Good | Moderate | Poor |
| PM2.5 (µg/m³) | Level | |
|---|---|---|
| Jan | 11 | Good |
| Feb | 5 | Good |
| Mar | 6 | Good |
| Apr | 9 | Good |
| May | 14 | Moderate |
| Jun | 8 | Good |
| Jul | 4 | Good |
| Aug | 5 | Good |
| Sep | 6 | Good |
| Oct | 7 | Good |
| Nov | 21 | Moderate |
| Dec | 49 | Poor |
Where is Blue Mountains?
Blue Mountains sits at 33.7°S, 150.3°E, 978 m above sea level, in Australia. The nearest listed city is Katoomba, 2.0 km away.
Topography around Blue Mountains
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Blue Mountains.
Within 3 km, the terrain around Blue Mountains has large variations in elevation — a maximum elevation change of 696 m around an average of 890 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 1,002 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,382 m.
The land around Blue Mountains is covered by trees (91%) within 3 km, trees (92%) within 16 km, and trees (73%) and grassland (21%) 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 Blue Mountains (-33.7133°, 150.3306°, elevation 978 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).