Stuart weather in September: Stuart, Florida: normal highs, lows, rain and records for September
Stuart in September has a normal high of 89°F and a normal low of 75°F, a daily mean of 82°F, falling from 90°F on the 1st to 88°F by the 30th. Measurable precipitation falls on 16 days in a normal September, 8.28 inches in all. (NOAA 1991-2020 normals)
In metric: a normal high of 32°C and low of 24°C, 210 mm of precipitation in September.
- NOAA stationStuart
- Station IDUSC00088620
- Location27.19°N 80.24°W
- Elevation13 ft (4 m)
- From the centerunder 1 mile
- Population19,566
- Jan 74° 56°
- Feb 76° 59°
- Mar 78° 61°
- Apr 82° 67°
- May 86° 71°
- Jun 89° 74°
- Jul 91° 76°
- Aug 91° 76°
- Sep 89° 75°
- Oct 85° 72°
- Nov 80° 65°
- Dec 76° 60°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
How warm is Stuart in September?
The normal high is 89°F and the normal low 75°F, for a daily mean of 82.0°F. September is 1.2°F cooler than August and 3.6°F warmer than October. September is the 3rd warmest month of the year in Stuart and the 2nd wettest. Across the month the normal high falls 2°F, from 90°F on September 1 to 88°F on September 30. From one year to the next September's mean temperature typically moves about 1.1°F either way (NOAA's standard deviation), so roughly two Septembers in three average between 81°F and 83°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 54%).
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in |
|---|---|---|---|---|
| September 1 | 90°F | 76°F | 53% | 39% |
| September 8 | 89°F | 76°F | 54% | 39% |
| September 15 | 89°F | 75°F | 53% | 38% |
| September 22 | 88°F | 75°F | 53% | 38% |
| September 30 | 88°F | 75°F | 52% | 37% |
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 | 90°F | 76°F | 53% | 39% | 12 h 40 min |
| September 2 | 90°F | 76°F | 53% | 39% | 12 h 40 min |
| September 3 | 90°F | 76°F | 53% | 39% | 12 h 40 min |
| September 4 | 90°F | 76°F | 54% | 39% | 12 h 40 min |
| September 5 | 90°F | 76°F | 54% | 39% | 12 h 40 min |
| September 6 | 90°F | 76°F | 54% | 39% | 12 h 40 min |
| September 7 | 90°F | 76°F | 54% | 39% | 12 h 30 min |
| September 8 | 89°F | 76°F | 54% | 39% | 12 h 30 min |
| September 9 | 89°F | 76°F | 54% | 39% | 12 h 30 min |
| September 10 | 89°F | 75°F | 54% | 39% | 12 h 30 min |
| September 11 | 89°F | 75°F | 54% | 39% | 12 h 30 min |
| September 12 | 89°F | 75°F | 54% | 39% | 12 h 30 min |
| September 13 | 89°F | 75°F | 54% | 39% | 12 h 20 min |
| September 14 | 89°F | 75°F | 54% | 39% | 12 h 20 min |
| September 15 | 89°F | 75°F | 53% | 38% | 12 h 20 min |
| September 16 | 89°F | 75°F | 53% | 38% | 12 h 20 min |
| September 17 | 89°F | 75°F | 53% | 38% | 12 h 20 min |
| September 18 | 89°F | 75°F | 53% | 38% | 12 h 20 min |
| September 19 | 89°F | 75°F | 53% | 38% | 12 h 10 min |
| September 20 | 89°F | 75°F | 53% | 38% | 12 h 10 min |
| September 21 | 88°F | 75°F | 53% | 38% | 12 h 10 min |
| September 22 | 88°F | 75°F | 53% | 38% | 12 h 10 min |
| September 23 | 88°F | 75°F | 53% | 38% | 12 h 10 min |
| September 24 | 88°F | 75°F | 53% | 38% | 12 h 10 min |
| September 25 | 88°F | 75°F | 53% | 38% | 12 h 10 min |
| September 26 | 88°F | 75°F | 53% | 38% | 12 h |
| September 27 | 88°F | 75°F | 53% | 37% | 12 h |
| September 28 | 88°F | 75°F | 53% | 37% | 12 h |
| September 29 | 88°F | 75°F | 52% | 37% | 12 h |
| September 30 | 88°F | 75°F | 52% | 37% | 12 h |
- Normal high
- 89°FSeptember average
- Normal low
- 75°FSeptember average
- Precipitation
- 8.28 inmonth total
- Days with precipitation
- 160.01 inch or more
- Days at 90°F or more
- 13
- 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
- 78%of clear-sky sunlight (NASA)
Source: NOAA NCEI 1991-2020 daily normals, station USC00088620; monthly normals. Daylight is computed from the place's latitude with NOAA's solar equations.
Does it rain in Stuart in September?
On a given September day the chance of 0.01 inch or more is 53% on average, highest around September 7 (54%). In all, 8.28 in falls on 16 days of a normal September, 3 of them with an inch or more.
In a normal September in Stuart, 13 days reach 90°F.
Source: NOAA NCEI 1991-2020 daily and monthly normals, station USC00088620.
What are the records for September in Stuart?
The warmest September temperature on this station's record (since 1936) is 102°F, on September 6, 1992; the coldest is 62°F, on September 27, 1956. The wettest September brought 18.45 in (1960).
The September mean against the 1991-2020 normal of 82.0°F: 2021 81.8°F (−0.2), 2022 82.1°F (+0.1), 2023 83.0°F (+1.0), 2024 84.1°F (+2.1), 2025 82.6°F (+0.6), 2026 82.4°F (+0.4). 5 of 6 ran warmer than normal.
| September | Mean | Against normal | Precip. |
|---|---|---|---|
| 2021 | 81.8°F | −0.2°F | 3.62 in |
| 2022 | 82.1°F | +0.1°F | 10.00 in |
| 2023 | 83.0°F | +1.0°F | 7.41 in |
| 2024 | 84.1°F | +2.1°F | 9.31 in |
| 2025 | 82.6°F | +0.6°F | 7.39 in |
| 2026 | 82.4°F | +0.4°F | – |
Source: records: ACIS, station USC00088620; recent months: ACIS, station USC00088620. Records and recent months use complete months only.
How does September in Stuart 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; Stuart's is 89°F.
Source: NOAA NCEI 1991-2020 monthly normals for every station in the state.