The best time to visit Outback & Red Centre (Uluru) is Apr–Sep. It is the only stretch of the year — 6 months — rated go on both daytime heat and rainfall.
Desert; scorching summers
| Month | High °C | High °F | Rainy days | Verdict |
|---|---|---|---|---|
| January | 37.1 | 99 | 20% | Too hot |
| February | 35.8 | 96 | 20% | Too hot |
| March | 33.7 | 93 | 10% | Too hot |
| April | 29.7 | 85 | 6% | Go |
| May | 24.0 | 75 | 8% | Go |
| June | 20.6 | 69 | 6% | Go |
| July | 21.0 | 70 | 5% | Go |
| August | 23.9 | 75 | 3% | Go |
| September | 29.5 | 85 | 5% | Go |
| October | 32.8 | 91 | 10% | Fair |
| November | 35.1 | 95 | 19% | Too hot |
| December | 36.2 | 97 | 24% | Too hot |
Verdict combines mean daytime high with rainy-day frequency. “Rainy days” is the share of days in the month with at least 1 mm of rain.
August is the driest month, with rain on 3% of days and daytime highs near 23.9°C (75°F). December is the wettest, at 24%. The warmest month is January at 37.1°C (99°F); the coolest is June at 20.6°C (69°F). The record rules out too hot in Nov–Mar.