Melbourne weather in September: Melbourne, Florida: normal highs, lows, rain and records for September
Melbourne in September has a normal high of 88°F and a normal low of 74°F, a daily mean of 81°F, falling from 89°F on the 1st to 86°F by the 30th. Measurable precipitation falls on 15 days in a normal September, 7.63 inches in all. (NOAA 1991-2020 normals)
In metric: a normal high of 31°C and low of 23°C, 194 mm of precipitation in September.
- NOAA stationMelbourne International Airport
- Station IDUSW00012838
- Location28.10°N 80.64°W
- Elevation27 ft (8 m)
- Population87,561
- Jan 72° 52°
- Feb 74° 54°
- Mar 77° 58°
- Apr 81° 63°
- May 85° 69°
- Jun 88° 73°
- Jul 90° 74°
- Aug 89° 75°
- Sep 88° 74°
- Oct 84° 69°
- Nov 77° 61°
- Dec 74° 56°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
How warm is Melbourne in September?
The normal high is 88°F and the normal low 74°F, for a daily mean of 80.6°F. September is 1.4°F cooler than August and 4.3°F warmer than October. September is the 3rd warmest month of the year in Melbourne and the wettest. Across the month the normal high falls 3°F, from 89°F on September 1 to 86°F on September 30. From one year to the next September's mean temperature typically moves about 1.0°F either way (NOAA's standard deviation), so roughly two Septembers in three average between 80°F and 82°F.
Bars above: each day's normal high to low. Columns below: the chance of 0.01 inch or more of precipitation that day, on a scale of 0 to 100% (highest 50%).
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in |
|---|---|---|---|---|
| September 1 | 89°F | 75°F | 50% | 31% |
| September 8 | 88°F | 74°F | 49% | 31% |
| September 15 | 88°F | 74°F | 48% | 29% |
| September 22 | 87°F | 73°F | 45% | 28% |
| September 30 | 86°F | 72°F | 42% | 25% |
Every day of September: normal high, low and chance of precipitation (warmest afternoon September 1, coldest night September 30)
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in | Daylight |
|---|---|---|---|---|---|
| September 1 | 89°F | 75°F | 50% | 31% | 12 h 40 min |
| September 2 | 89°F | 75°F | 50% | 31% | 12 h 40 min |
| September 3 | 88°F | 75°F | 50% | 31% | 12 h 40 min |
| September 4 | 88°F | 75°F | 50% | 31% | 12 h 40 min |
| September 5 | 88°F | 75°F | 50% | 31% | 12 h 40 min |
| September 6 | 88°F | 74°F | 49% | 31% | 12 h 40 min |
| September 7 | 88°F | 74°F | 49% | 31% | 12 h 30 min |
| September 8 | 88°F | 74°F | 49% | 31% | 12 h 30 min |
| September 9 | 88°F | 74°F | 49% | 30% | 12 h 30 min |
| September 10 | 88°F | 74°F | 49% | 30% | 12 h 30 min |
| September 11 | 88°F | 74°F | 49% | 30% | 12 h 30 min |
| September 12 | 88°F | 74°F | 48% | 30% | 12 h 30 min |
| September 13 | 88°F | 74°F | 48% | 30% | 12 h 30 min |
| September 14 | 88°F | 74°F | 48% | 30% | 12 h 20 min |
| September 15 | 88°F | 74°F | 48% | 29% | 12 h 20 min |
| September 16 | 88°F | 74°F | 47% | 29% | 12 h 20 min |
| September 17 | 88°F | 74°F | 47% | 29% | 12 h 20 min |
| September 18 | 88°F | 74°F | 47% | 29% | 12 h 20 min |
| September 19 | 87°F | 74°F | 47% | 29% | 12 h 20 min |
| September 20 | 87°F | 73°F | 46% | 29% | 12 h 10 min |
| September 21 | 87°F | 73°F | 46% | 28% | 12 h 10 min |
| September 22 | 87°F | 73°F | 45% | 28% | 12 h 10 min |
| September 23 | 87°F | 73°F | 45% | 28% | 12 h 10 min |
| September 24 | 87°F | 73°F | 45% | 27% | 12 h 10 min |
| September 25 | 87°F | 73°F | 44% | 27% | 12 h 10 min |
| September 26 | 87°F | 73°F | 44% | 27% | 12 h |
| September 27 | 87°F | 73°F | 43% | 26% | 12 h |
| September 28 | 87°F | 73°F | 43% | 26% | 12 h |
| September 29 | 87°F | 73°F | 42% | 26% | 12 h |
| September 30 | 86°F | 72°F | 42% | 25% | 12 h |
- Normal high
- 88°FSeptember average
- Normal low
- 74°FSeptember average
- Precipitation
- 7.63 inmonth total
- Days with precipitation
- 150.01 inch or more
- Days at 90°F or more
- 8
- Daylight
- 12 h 40 min to 12 hSeptember 1 to September 30
- Days at 70°F or more
- 30
- Days at 80°F or more
- 30
- Sunshine
- 79%of clear-sky sunlight (NASA)
Source: NOAA NCEI 1991-2020 daily normals, station USW00012838; monthly normals. Daylight is computed from the place's latitude with NOAA's solar equations.
Does it rain in Melbourne in September?
On a given September day the chance of 0.01 inch or more is 47% on average, highest around September 1 (50%). In all, 7.63 in falls on 15 days of a normal September, 2 of them with an inch or more.
In a normal September in Melbourne, 8 days reach 90°F.
Source: NOAA NCEI 1991-2020 daily and monthly normals, station USW00012838.
How humid and windy is Melbourne in September?
At 3 p.m. the normal temperature is 84°F with 67% relative humidity and a dew point of 72°F; at 6 a.m. it is 75°F with 88% humidity. The wind averages 8.9 mph, most often from the east-northeast in the afternoon. A dew point of 65°F or more feels muggy to most people.
| Time | Temperature | Dew point | Humidity | Wind | Clear or few clouds |
|---|---|---|---|---|---|
| 6 a.m. | 75°F | 71°F | 88% | 5.8 mph | 61% |
| 9 a.m. | 81°F | 72°F | 74% | 9.1 mph | 47% |
| noon | 85°F | 72°F | 66% | 11.2 mph | 29% |
| 3 p.m. | 84°F | 72°F | 67% | 12.1 mph | 32% |
| 6 p.m. | 80°F | 72°F | 75% | 10.4 mph | 43% |
| 9 p.m. | 79°F | 72°F | 79% | 8.8 mph | 58% |
Source: NOAA NCEI 1991-2020 hourly normals, station USW00012838. Hourly normals exist only for NOAA's first-order stations; a dash where NOAA publishes no value for that hour (the sky at some hours).
What are the records for September in Melbourne?
The warmest September temperature on Melbourne's official record (since 1937) is 98°F, on September 1, 1972; the coldest is 57°F, on September 21, 1938. The wettest September brought 20.94 in (2017).
The September mean against the 1991-2020 normal of 80.6°F: 2021 80.9°F (+0.3), 2022 80.8°F (+0.2), 2023 81.0°F (+0.4), 2024 82.7°F (+2.1), 2025 80.8°F (+0.2), 2026 81.0°F (+0.4). 6 of 6 ran warmer than normal.
| September | Mean | Against normal | Precip. |
|---|---|---|---|
| 2021 | 80.9°F | +0.3°F | 3.53 in |
| 2022 | 80.8°F | +0.2°F | 15.51 in |
| 2023 | 81.0°F | +0.4°F | 9.19 in |
| 2024 | 82.7°F | +2.1°F | 5.83 in |
| 2025 | 80.8°F | +0.2°F | 8.37 in |
| 2026 | 81.0°F | +0.4°F | 6.57 in |
Source: records: ACIS, NWS threaded record MLBthr; recent months: ACIS, station USW00012838. Records and recent months use complete months only.
How does September in Melbourne compare across Florida?
Across the 106 places PlainClimate covers in Florida, September normal highs run from 86°F in Jacksonville Beach to 92°F in Plant City; Melbourne's is 88°F.
Source: NOAA NCEI 1991-2020 monthly normals for every station in the state.