Climate averages 1991–2020

Blue Mountains weather
in October.

A mild, moderately wet month: the 6th warmest and the 7th driest of the year.

Long-term climate patterns, not a forecast for a particular trip.

Average high 18.0°C Daytime mean, October
Average low 6.6°C Night-time mean, October
Rainfall 75 mm 11 days with ≥1 mm
Daylight 13 h Sunrise to sunset, per day
Every month in Blue Mountains · average highYear overview

October is a mild month in Blue Mountains: daytime highs average 18.0°C and nights cool to about 6.6°C. By daytime temperature it is the 6th warmest of the 12 months.

Expect about 75 mm of rain on roughly 11 days, which makes October a moderately wet month (the 7th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 54 min on an average October day.

The nearest other city in this atlas is Sydney (83 km away). In October its highs average 21.3°C, 3.3°C warmer than Blue Mountains, with 59 mm of rain.

Among the 32 cities listed in Australia, Blue Mountains ranks joint 28th of 32 for the warmest October highs and joint 26th of 32 for the driest October (rainfall, lowest first). The mean October high of those 32 cities is 22.2°C; Blue Mountains is 4.2°C cooler than that mean.

From October to November, average highs rise by 2.1°C to 20.1°C, and monthly rainfall rises from 75 mm to 109 mm.

The annual picture

October in context

30-year average
Average highAverage low°C
Average daily high and low temperatures by month The same values are available in the monthly table below. Lines show mean daily maxima and minima, not a forecast interval. -5051015202530 JanFebMarAprMayJunJulAugSepOctNovDec

Monthly rainfall

Average total · mm
Average monthly rainfall totalsEach bar is a mean monthly total over 1991–2020. Full numbers are in the table. JanFebMarAprMayJunJulAugSepOctNovDec 1500

Averages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated

Every month, side by side

Blue Mountains climate table

1991–2020
Monthly climate averages for Blue Mountains, 1991–2020
MonthAverage highHigh / lowAverage lowRainfall mm/monthRain days ≥1 mm/dayDaylight hours/dayDay­light h/day
January 23.6°C12.8°C12.8°C12615.514.114 h
February 22.2°C12.6°C12.6°C14815.413.313 h
March 19.9°C10.8°C10.8°C11515.112.312 h
April 16.8°C7.7°C7.7°C569.111.311 h
May 13.3°C4.6°C4.6°C486.610.410 h
June 10.4°C2.7°C2.7°C627.710.010 h
July 9.9°C1.5°C1.5°C376.310.110 h
August 11.5°C1.8°C1.8°C466.710.911 h
September 15.0°C4.3°C4.3°C538.311.912 h
October, selected 18.0°C6.6°C6.6°C7510.512.913 h
November 20.1°C8.9°C8.9°C10913.713.814 h
December 22.1°C11.0°C11.0°C12113.514.314 h

Rainfall is the average of the 30 separate monthly totals. A rain day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.

Compare places

October in nearby cities

Distance from Blue Mountains

Read the numbers correctly

Climate, not a promise.

These patterns help compare months. They cannot tell you the weather on a specific day of your trip.

Sources, method and limits

How these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for Blue Mountains) is explained once on the Blue Mountains year overview and on the Sources, method and limits page.