Melbourne in September
In September, Melbourne averages 18°C (64°F) during the day and 8°C (46°F) at night, with frequent rain — about 14 days of the month see precipitation (60 mm total).
High seasonConditions are comfortable for sightseeing without being sweltering. Plan for unsettled weather and bring rain gear.
September offers comfortable temperatures in Melbourne, with some rain to plan around.
How September compares to the rest of the year in Melbourne
September is in the middle of the year for warmth in Melbourne (8th of 12) and moderately rainy compared to the rest of the year (5th of 12). Daytime temperature runs 2°C below the annual average (20°C). September runs 3°C warmer than August (15°C) and warms a further 2°C into October (20°C).
September sunrise & sunset in Melbourne
Times shown for Melbourne local time (Australia/Melbourne), calculated for the 15th of September. They shift by a few minutes day to day across the month.
Photography light in Melbourne — September
Golden-hour and blue-hour windows for the 15th of September, in Melbourne's local time. Use these for soft warm light (golden) or cool architectural twilight (blue).
📅 When to book — Melbourne 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 Melbourne's popularity.
Crowds & pricing — September in Melbourne
This is a busy month in Melbourne — 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 Melbourne
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 Melbourne — September
Across the year Melbourne's sea swings from 10.5°C (July) to 22.2°C (January) — September sits at 13.4°C.
Melbourne in other months
| Month | Avg high | Avg low | Rainfall | Rain days | Snow days |
|---|---|---|---|---|---|
| January | 26°C / 79°F | 14°C / 57°F | 45 mm | 8 | 0 |
| February | 26°C / 79°F | 15°C / 59°F | 50 mm | 7 | 0 |
| March | 24°C / 75°F | 13°C / 55°F | 50 mm | 9 | 0 |
| April | 20°C / 68°F | 11°C / 52°F | 55 mm | 12 | 0 |
| May | 17°C / 63°F | 9°C / 48°F | 55 mm | 14 | 0 |
| June | 14°C / 57°F | 7°C / 45°F | 50 mm | 14 | 0 |
| July | 14°C / 57°F | 6°C / 43°F | 50 mm | 14 | 0 |
| August | 15°C / 59°F | 7°C / 45°F | 55 mm | 15 | 0 |
| September | 18°C / 64°F | 8°C / 46°F | 60 mm | 14 | 0 |
| October | 20°C / 68°F | 9°C / 48°F | 65 mm | 14 | 0 |
| November | 22°C / 72°F | 11°C / 52°F | 60 mm | 12 | 0 |
| December | 25°C / 77°F | 13°C / 55°F | 60 mm | 10 | 0 |
Other cities with similar September weather
🌍 See the full ranked list of climate twins for Melbourne in September →
Frequently asked questions
How hot is Melbourne in September?
In September, Melbourne averages a high of 18°C (64°F) and a low of 8°C (46°F) — generally mild and pleasant.
Does it rain a lot in Melbourne in September?
September can be fairly wet in Melbourne, with about 14 rainy days on average.
Is September a good time to visit Melbourne?
September is mild and pleasant but on the rainy side. It suits travelers who are comfortable with mild and pleasant weather; check the month-by-month ranking to compare it against the rest of the year.
What should I pack for Melbourne 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 Melbourne for a complete, climate-based checklist.
Check the live 10-day forecast and sunrise/sunset.