Blue Mountains weather in October

In October, Blue Mountains sees average daytime highs of 20°C and overnight lows near 8°C, with 75 mm of precipitation across 10.5 wet days and about 12.8 hours of daylight. It is the 6th-warmest and 6th-wettest month of the year here.

Highs climb over the month, from about 19°C in the first days to 20°C by the end. The sky is clear or mostly clear about 38% of the time in October, and the air most often feels dry.

Daylight stretches from about 12 h 18 min at the start of October to 13 h 18 min by month's end. Set against the rest of the year, October is Blue Mountains's 5th-clearest and 5th-windiest month. For the whole year in context, see Blue Mountains's year-round climate.

Daytime high
20°
6th warmest
Overnight low
6th coldest
Precipitation
75 mm
10.5 wet days
Daylight
12 h 54 min
6:18 AM – 7:09 PM
Cloud cover
51%
5th clearest
Wind
10 km/h
5th windiest
Solar energy
5.81 kWh/m²
Travel score
6.3
out of 10

Temperature in October

Average highAverage lowShaded bands: 10–90% of days

Highs climb over the month, from about 19°C in the first days to 20°C by the end.

A typical October day in Blue Mountains reaches about 20°C in the afternoon and slips back to 8°C overnight — a 12°C spread between the day's warmth and the night's chill. On most days the high lands between 14°C and 25°C. Set against its neighbours, October runs about 3°C warmer than September and about 2°C cooler than November.

10°20°30°151015202531
Avg high (°C)Avg low (°C)
1196
2197
3197
4197
5197
6197
7197
8197
9197
10197
11197
12197
13197
14197
15207
16208
17208
18208
19208
20208
21208
22208
23208
24208
25208
26208
27208
28208
29208
30209
31219

How October really feels in Blue Mountains

Once humidity and wind are folded in, October 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.

Days feeling ≥ 32°C
0
heat index over the day's high
Days feeling ≤ C
0
wind chill below the day's low

October 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 October compares with the rest of the year at a glance. October is the 6th-warmest and 6th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan25° / 14°12615.6146.0
Feb24° / 14°14615.413.35.9
Mar22° / 12°11515.212.36.0
Apr19° / 569.111.26.3
May15° / 486.610.35.3
Jun13° / 627.59.83.7
Jul12° / 376.3103.6
Aug14° / 466.710.74.4
Sep17° / 538.211.85.8
Oct20° / 7510.512.86.3
Nov22° / 10°10913.713.76.1
Dec24° / 12°12113.414.26.4

Cloud cover in October

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 38% of the time in October.

Beyond those clear spells, partly cloudy skies cover about 18% of October, with mostly cloudy or overcast conditions the remaining 43%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
16436
26436
36337
46238
56238
66139
76139
86139
96139
106040
116040
126040
136040
146040
156040
166040
175941
185941
195842
205644
215545
225545
235446
245248
255149
265149
274951
284852
294852
304654
314654

Chance of precipitation in October

Any precipitation

Blue Mountains gets around 75 mm of rain and snow over 10.5 wet days in October. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable precipitation averages around 34% and peaks near 39% on the wettest days, and about 0 day brings snow. The odds climb toward the end of the month.

0%10%20%30%40%50%151015202531
Rain chance (%)
129
229
329
429
530
630
731
831
931
1032
1132
1233
1333
1434
1534
1634
1735
1835
1935
2035
2136
2236
2336
2437
2537
2637
2737
2838
2938
3039
3139

Humidity in October

DryComfortableHumidMuggyOppressiveMiserable

Most of October feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.

By dew point, October lands in the dry band about 96% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)
19910
29910
39910
49910
59910
69910
79820
89820
99820
109820
119820
129730
139730
149730
159730
169730
179730
189640
199640
209640
219640
229640
239550
249550
259550
269361
279361
289271
299271
309181
319181

Wind in October

Winds average 10 km/h in October.

Across October, daily wind ranges from about 9 km/h on the calmest days to 11 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202531
Wind speed (km/h)Feels
111calm
210calm
310calm
410calm
510calm
610calm
710calm
810calm
910calm
1010calm
1110calm
1210calm
1310calm
1410calm
1510calm
1610calm
1710calm
1810calm
1910calm
2010calm
219calm
229calm
239calm
249calm
259calm
269calm
279calm
289calm
299calm
309calm
319calm

Sunrise & sunset in October

DaylightNight

Daylight runs from about 12 h 18 min at the start of October to 13 h 18 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 60 minutes over October. Sunrise moves from 6:38 AM to 6:02 AM, and sunset from 6:58 PM to 7:22 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.36:386:58
212.46:366:58
312.46:356:59
412.46:347:00
512.56:327:01
612.56:317:01
712.56:307:02
812.66:287:03
912.66:277:04
1012.66:267:05
1112.76:247:05
1212.76:237:06
1312.86:227:07
1412.86:217:08
1512.86:197:09
1612.96:187:09
1712.96:177:10
1812.96:167:11
1913.06:157:12
2013.06:137:13
2113.06:127:14
2213.16:117:14
2313.16:107:15
2413.16:097:16
2513.26:087:17
2613.26:077:18
2713.26:067:19
2813.26:057:20
2913.36:047:21
3013.36:037:22
3113.36:027:22

Solar energy in October

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in October, about 5.81 kWh/m².

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 — October's 5.81 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
15.5Bright
25.5Bright
35.5Bright
45.6Bright
55.6Bright
65.6Bright
75.6Bright
85.7Bright
95.7Bright
105.7Bright
115.7Bright
125.8Bright
135.8Bright
145.8Bright
155.8Bright
165.8Bright
175.9Bright
185.9Bright
195.9Bright
205.9Bright
215.9Bright
225.9Bright
235.9Bright
246.0Bright
256.0Bright
266.0Bright
276.0Bright
286.0Bright
296.0Intense
306.0Intense
316.0Intense
Planning a trip in October

Hazard calendar for Blue Mountains

In seasonPeak

In October, 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.

Rainy season
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Is October a good time to visit Blue Mountains?

Our two travel scores rate October for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).

6.3
Sightseeing
2nd-best month of the year
3.0
Beach & pool
6th-best month of the year

October is a reasonable time to visit Blue Mountains for sightseeing.

What to pack for Blue Mountains in October

From October's temperature range, rain chance, sun and wind — what's worth putting in the bag.

In October, Blue Mountains sees daytime highs around 20°C and nights near 8°C. Worth packing: a warm layer, rain gear and sun protection. About 11 days see rain.

a warm layerrain gearsun protection

UV index in Blue Mountains in October

LowModerateHighVery highExtreme

Clear-sky midday UV in October peaks around 9 (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.

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highModerateHighVery highExtremeJan 18UV 13Jun 18UV 3
UV index (midday)Level
Jan13Extreme
Feb12Extreme
Mar9Very high
Apr6High
May4Moderate
Jun2Moderate
Jul3Moderate
Aug4Moderate
Sep6High
Oct9Very high
Nov10Extreme
Dec12Extreme

Air quality in Blue Mountains in October

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where October 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).

0204060JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodModeratePoorDec 1545 µg/m³Jul 214 µg/m³
PM2.5 (µg/m³)Level
Jan11Good
Feb5Good
Mar6Good
Apr9Good
May14Moderate
Jun8Good
Jul4Good
Aug5Good
Sep6Good
Oct7Good
Nov21Moderate
Dec49Poor
Location & terrain

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.

3 km
696 m
16 km
1,002 m
80 km
1,382 m
treesgrasslandartificial surfaceswater
October weather nearby: Katoomba 2.0 km · Glenmore Park 32 km · Cranebrook 35 km · St Clair 43 km · Mount Druitt 45 km · Quakers Hill 51 km · Blacktown 55 km · Glenwood 56 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
none 38%Roman Catholic 20%Protestant 18%other Christian 4%

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).