Climate averages 1991–2020
Melbourne, United States weather
in September.
A hot, wet month: the 4th warmest and the wettest of the year.
Long-term climate patterns, not a forecast for a particular trip.
September is a hot month in Melbourne, United States: daytime highs average 28.9°C and nights cool to about 24.5°C. By daytime temperature it is the 4th warmest of the 12 months.
Expect about 149 mm of rain on roughly 20 days, which makes September a wet month (the wettest month of the year). Daylight, from sunrise to sunset, lasts about 12 h 21 min on an average September day.
The nearest other city in this atlas is Palm Bay (6 km away). In September its highs average 29.0°C, about as warm as Melbourne, United States, with 149 mm of rain.
Among the 498 cities listed in the United States, Melbourne, United States ranks joint 175th of 498 for the warmest September highs and joint 479th of 498 for the driest September (rainfall, lowest first). The mean September high of those 498 cities is 26.9°C; Melbourne, United States is 2.0°C warmer than that mean.
From September to October, average highs fall by 2.1°C to 26.8°C, and monthly rainfall falls from 149 mm to 97 mm.
The annual picture
September 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
Melbourne, United States climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 20.8°C14.3°C | 14.3°C | 57 | 6.9 | 10.611 h |
| February | 21.9°C15.2°C | 15.2°C | 49 | 6.9 | 11.211 h |
| March | 23.7°C16.8°C | 16.8°C | 57 | 6.9 | 12.012 h |
| April | 25.9°C19.2°C | 19.2°C | 49 | 6.9 | 12.813 h |
| May | 28.1°C21.8°C | 21.8°C | 69 | 9.3 | 13.514 h |
| June | 29.6°C24.1°C | 24.1°C | 132 | 18.3 | 13.914 h |
| July | 30.3°C24.8°C | 24.8°C | 118 | 19.8 | 13.714 h |
| August | 30.1°C25.0°C | 25.0°C | 142 | 22.4 | 13.113 h |
| September, selected | 28.9°C24.5°C | 24.5°C | 149 | 20.0 | 12.312 h |
| October | 26.8°C22.3°C | 22.3°C | 97 | 12.5 | 11.512 h |
| November | 24.0°C18.9°C | 18.9°C | 48 | 7.6 | 10.811 h |
| December | 22.0°C16.3°C | 16.3°C | 45 | 6.8 | 10.410 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
September in nearby cities
- Palm Bay in SeptemberUnited States · 6 kmHigh 29.0°C · Low 24.4°C · 149 mm rain
- Alafaya in SeptemberUnited States · 80 kmHigh 29.6°C · Low 23.2°C · 143 mm rain
- Orlando in SeptemberUnited States · 91 kmHigh 29.8°C · Low 23.0°C · 142 mm rain
- Port Saint Lucie in SeptemberUnited States · 91 kmHigh 29.6°C · Low 24.3°C · 139 mm rain
- Deltona in SeptemberUnited States · 111 kmHigh 29.8°C · Low 23.1°C · 146 mm rain
- Daytona Beach in SeptemberUnited States · 132 kmHigh 29.3°C · Low 23.7°C · 140 mm rain
- Lakeland in SeptemberUnited States · 132 kmHigh 30.0°C · Low 22.9°C · 130 mm rain
- West Palm Beach in SeptemberUnited States · 162 kmHigh 29.3°C · Low 24.8°C · 179 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 Melbourne) is explained once on the Melbourne, United States year overview and on the Sources, method and limits page.
Palm Bay lies in the same rainfall cell, so its rainfall figures are identical to these; temperatures differ because they come from smaller 0.1° cells.