Climate averages 1991–2020
Blue Mountains weather
in July.
A cool, fairly dry month: the coolest and the driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
July is a cool month in Blue Mountains: daytime highs average 9.9°C and nights cool to about 1.5°C. By daytime temperature it is the coolest month of the year.
Expect about 37 mm of rain on roughly 6 days, which makes July a fairly dry month (the driest month of the year). Daylight, from sunrise to sunset, lasts about 10 h 08 min on an average July day.
The nearest other city in this atlas is Sydney (83 km away). In July its highs average 15.9°C, 6.0°C warmer than Blue Mountains, with 56 mm of rain.
Among the 32 cities listed in Australia, Blue Mountains ranks 32nd of 32 for the warmest July highs and joint 13th of 32 for the driest July (rainfall, lowest first). The mean July high of those 32 cities is 16.5°C; Blue Mountains is 6.6°C cooler than that mean.
From July to August, average highs rise by 1.5°C to 11.5°C, and monthly rainfall rises from 37 mm to 46 mm.
The annual picture
July in context
Monthly rainfall
Average total · mmAverages 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
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 23.6°C12.8°C | 12.8°C | 126 | 15.5 | 14.114 h |
| February | 22.2°C12.6°C | 12.6°C | 148 | 15.4 | 13.313 h |
| March | 19.9°C10.8°C | 10.8°C | 115 | 15.1 | 12.312 h |
| April | 16.8°C7.7°C | 7.7°C | 56 | 9.1 | 11.311 h |
| May | 13.3°C4.6°C | 4.6°C | 48 | 6.6 | 10.410 h |
| June | 10.4°C2.7°C | 2.7°C | 62 | 7.7 | 10.010 h |
| July, selected | 9.9°C1.5°C | 1.5°C | 37 | 6.3 | 10.110 h |
| August | 11.5°C1.8°C | 1.8°C | 46 | 6.7 | 10.911 h |
| September | 15.0°C4.3°C | 4.3°C | 53 | 8.3 | 11.912 h |
| October | 18.0°C6.6°C | 6.6°C | 75 | 10.5 | 12.913 h |
| November | 20.1°C8.9°C | 8.9°C | 109 | 13.7 | 13.814 h |
| December | 22.1°C11.0°C | 11.0°C | 121 | 13.5 | 14.314 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
July in nearby cities
- Sydney in JulyAustralia · 83 kmHigh 15.9°C · Low 9.1°C · 56 mm rain
- Wollongong in JulyAustralia · 95 kmHigh 15.5°C · Low 10.5°C · 66 mm rain
- Central Coast in JulyAustralia · 101 kmHigh 16.0°C · Low 10.6°C · 49 mm rain
- Maitland in JulyAustralia · 158 kmHigh 16.4°C · Low 7.9°C · 37 mm rain
- Newcastle, Australia in JulyAustralia · 160 kmHigh 16.1°C · Low 10.5°C · 73 mm rain
- Canberra in JulyAustralia · 206 kmHigh 10.0°C · Low 1.3°C · 37 mm rain
- Tuggeranong in JulyAustralia · 222 kmHigh 10.0°C · Low 1.4°C · 44 mm rain
- Coffs Harbour in JulyAustralia · 462 kmHigh 17.5°C · Low 11.5°C · 36 mm rain
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 limitsHow 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.