Climate averages 1991–2020
Blue Mountains weather
in April.
A mild, moderately wet month: the 7th warmest and the 5th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
April is a mild month in Blue Mountains: daytime highs average 16.8°C and nights cool to about 7.7°C. By daytime temperature it is the 7th warmest of the 12 months.
Expect about 56 mm of rain on roughly 9 days, which makes April a moderately wet month (the 5th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 11 h 16 min on an average April day.
The nearest other city in this atlas is Sydney (83 km away). In April its highs average 21.5°C, 4.7°C warmer than Blue Mountains, with 77 mm of rain.
Among the 32 cities listed in Australia, Blue Mountains ranks 31st of 32 for the warmest April highs and 21st of 32 for the driest April (rainfall, lowest first). The mean April high of those 32 cities is 22.4°C; Blue Mountains is 5.6°C cooler than that mean.
From April to May, average highs fall by 3.5°C to 13.3°C, and monthly rainfall falls from 56 mm to 48 mm.
The annual picture
April 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, selected | 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 | 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
April in nearby cities
- Sydney in AprilAustralia · 83 kmHigh 21.5°C · Low 15.3°C · 77 mm rain
- Wollongong in AprilAustralia · 95 kmHigh 20.9°C · Low 16.0°C · 95 mm rain
- Central Coast in AprilAustralia · 101 kmHigh 21.5°C · Low 16.5°C · 77 mm rain
- Maitland in AprilAustralia · 158 kmHigh 22.8°C · Low 14.4°C · 51 mm rain
- Newcastle, Australia in AprilAustralia · 160 kmHigh 21.7°C · Low 16.5°C · 86 mm rain
- Canberra in AprilAustralia · 206 kmHigh 18.5°C · Low 8.0°C · 27 mm rain
- Tuggeranong in AprilAustralia · 222 kmHigh 18.5°C · Low 8.0°C · 34 mm rain
- Coffs Harbour in AprilAustralia · 462 kmHigh 22.4°C · Low 17.3°C · 78 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.