Brisbane in September
In September, Brisbane averages 25°C (76°F) during the day and 13°C (56°F) at night, with frequent rain — about 14 days of the month see precipitation (44 mm total).
High seasonConditions are comfortable for sightseeing without being sweltering. Plan for unsettled weather and bring rain gear.
September offers comfortable temperatures in Brisbane, with some rain to plan around.
How September compares to the rest of the year in Brisbane
September is in the middle of the year for warmth in Brisbane (8th of 12) and moderately rainy compared to the rest of the year (8th of 12). Daytime temperature runs 1°C below the annual average (26°C). September runs 2°C warmer than August (22°C) and warms a further 2°C into October (26°C).
September sunrise & sunset in Brisbane
Times shown for Brisbane local time (Australia/Brisbane), calculated for the 15th of September. They shift by a few minutes day to day across the month.
Photography light in Brisbane — September
Golden-hour and blue-hour windows for the 15th of September, in Brisbane's local time. Use these for soft warm light (golden) or cool architectural twilight (blue).
📅 When to book — Brisbane in September
Travel writers usually only tell you when to go. Here's when to book flights and lodging for the best mix of price and availability, based on September's tier (High season) and Brisbane's popularity.
Crowds & pricing — September in Brisbane
This is a busy month in Brisbane — not the absolute peak, but tourist numbers are clearly elevated. You'll feel it at headline attractions on weekends and in the historic centre, though side streets and lesser-known sights stay manageable. Prices are above off-season but not at their summit. A good week for first-time visitors who want everything open without the worst of the crush.
Why this tier: excellent tourism weather
Sun & mosquito risk — September in Brisbane
UV is a clear-sky sea-level estimate — clouds, altitude, and reflective surfaces (snow, water) shift it ±30%. Mosquito risk is climate-derived only; for current disease advisories (dengue, malaria, zika) check the CDC or WHO travel pages before your trip.
Sea temperature in Brisbane — September
Across the year Brisbane's sea swings from 17.1°C (July) to 27.6°C (February) — September sits at 21.5°C.
Brisbane in other months
| Month | Avg high | Avg low | Rainfall | Rain days | Snow days |
|---|---|---|---|---|---|
| January | 29°C / 85°F | 21°C / 70°F | 110 mm | 22 | — |
| February | 29°C / 84°F | 21°C / 69°F | 165 mm | 20 | — |
| March | 28°C / 82°F | 20°C / 68°F | 144 mm | 24 | — |
| April | 26°C / 78°F | 17°C / 62°F | 54 mm | 18 | — |
| May | 23°C / 74°F | 14°C / 56°F | 60 mm | 13 | — |
| June | 21°C / 69°F | 11°C / 52°F | 44 mm | 13 | — |
| July | 21°C / 70°F | 10°C / 50°F | 34 mm | 10 | — |
| August | 22°C / 72°F | 11°C / 52°F | 37 mm | 11 | — |
| September | 25°C / 76°F | 13°C / 56°F | 44 mm | 14 | — |
| October | 26°C / 79°F | 16°C / 61°F | 103 mm | 17 | — |
| November | 28°C / 83°F | 18°C / 64°F | 79 mm | 16 | — |
| December | 29°C / 84°F | 20°C / 68°F | 102 mm | 18 | — |
Other cities with similar September weather
🌍 See the full ranked list of climate twins for Brisbane in September →
Frequently asked questions
How hot is Brisbane in September?
In September, Brisbane averages a high of 25°C (76°F) and a low of 13°C (56°F) — generally warm.
Does it rain a lot in Brisbane in September?
September can be fairly wet in Brisbane, with about 14 rainy days on average.
Is September a good time to visit Brisbane?
September is warm but on the rainy side. It suits travelers who are comfortable with warm weather; check the month-by-month ranking to compare it against the rest of the year.
What should I pack for Brisbane in September?
Pack light layers for warm days and cooler evenings, plus a compact umbrella or rain jacket. See the full September packing list for Brisbane for a complete, climate-based checklist.
Check the live 10-day forecast and sunrise/sunset.