Narrabri in September
September is right in the heart of spring for Narrabri, and the weather has a definite personality this time of year.
Daytime highs average 22.5 degrees, dropping to 9.6 degrees overnight. That's a 13-degree swing between day and night. Comfortable during the day, with evenings that invite a light layer.
At 22.5 degrees, September sits 3.5 degrees below the annual average of 26.0 degrees.
Rainfall in September averages 56mm over about 4 days. That means roughly a 13% chance of rain on any given day, so you can leave the umbrella at the hotel.
Sunshine-wise, September delivers around 20.5 MJ/m2 of daily solar radiation. UV sits in the extreme category. Sunscreen, hat, and sunnies are all essential. You can burn in under 10 minutes.
September earns a 9.6/10 on our Comfort Score. This is prime time.
For your suitcase: a mix of short and long sleeves, something warmer for mornings and evenings, and serious sun protection.
Scroll down for the detailed climate data, or explore what nearby cities are like in September.
September at a Glance
Temperature Range
Daily temperature range in September. The bar shows the typical spread between overnight lows and afternoon highs.
What to Pack
- Comfortable casual wear suitable for warm days
- A warm jumper or fleece for cool mornings and evenings
- High SPF sunscreen (50+), sunglasses, and UV-protective clothing
Coming From Overseas?
How September in Narrabri stacks up against major cities around the world.
About 2 degrees warmer and considerably wetter.
About 4 degrees cooler and considerably drier.
About 4 degrees cooler and considerably drier.
How September Compares
Narrabri's monthly climate at a glance. September is highlighted.
| Month | Max | Min | Rain | Comfort |
|---|---|---|---|---|
| Jan | 35.0 | 21.9 | 60mm | 2.9 |
| Feb | 34.1 | 21.8 | 30mm | 3.9 |
| Mar | 31.8 | 18.9 | 22mm | 5.4 |
| Apr | 24.7 | 13.2 | 63mm | 9.5 |
| May | 21.4 | 10.1 | 54mm | 8.0 |
| Jun | 15.8 | 5.5 | 94mm | 3.5 |
| Jul | 15.8 | 5.9 | 60mm | 3.9 |
| Aug | 20.3 | 8.9 | 54mm | 7.4 |
| Sep | 22.5 | 9.6 | 56mm | 9.6 |
| Oct | 26.1 | 12.6 | 42mm | 9.4 |
| Nov | 31.1 | 18.5 | 122mm | 5.1 |
| Dec | 33.5 | 20.4 | 54mm | 4.1 |