Fort Pierce weather in September: Fort Pierce, Florida: normal highs, lows, rain and records for September
Fort Pierce in September has a normal high of 88°F and a normal low of 73°F, a daily mean of 80°F, falling from 89°F on the 1st to 87°F by the 30th. Measurable precipitation falls on 15 days in a normal September, 6.27 inches in all. (NOAA 1991-2020 normals)
In metric: a normal high of 31°C and low of 23°C, 159 mm of precipitation in September.
- NOAA stationFort Pierce St Lucie County International Airport
- Station IDUSW00012895
- Location27.50°N 80.38°W
- Elevation24 ft (7 m)
- From the center5 miles
- Population50,805
- Jan 73° 51°
- Feb 76° 54°
- Mar 78° 57°
- Apr 82° 61°
- May 86° 67°
- Jun 89° 71°
- Jul 90° 73°
- Aug 90° 73°
- Sep 88° 73°
- Oct 84° 69°
- Nov 79° 61°
- Dec 75° 56°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
How warm is Fort Pierce in September?
The normal high is 88°F and the normal low 73°F, for a daily mean of 80.3°F. September is 1.3°F cooler than August and 3.9°F warmer than October. September is the 3rd warmest month of the year in Fort Pierce and the 3rd wettest. Across the month the normal high falls 2°F, from 89°F on September 1 to 87°F on September 30. From one year to the next September's mean temperature typically moves about 0.9°F either way (NOAA's standard deviation), so roughly two Septembers in three average between 79°F and 81°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 52%).
| Day | High | Low | Chance of 0.01 in | Chance of 0.10 in |
|---|---|---|---|---|
| September 1 | 89°F | 73°F | 51% | 32% |
| September 8 | 89°F | 73°F | 52% | 33% |
| September 15 | 88°F | 73°F | 51% | 33% |
| September 22 | 88°F | 73°F | 49% | 32% |
| September 30 | 87°F | 72°F | 47% | 30% |
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 | 73°F | 51% | 32% | 12 h 40 min |
| September 2 | 89°F | 73°F | 52% | 32% | 12 h 40 min |
| September 3 | 89°F | 73°F | 52% | 32% | 12 h 40 min |
| September 4 | 89°F | 73°F | 52% | 32% | 12 h 40 min |
| September 5 | 89°F | 73°F | 52% | 32% | 12 h 40 min |
| September 6 | 89°F | 73°F | 52% | 33% | 12 h 40 min |
| September 7 | 89°F | 73°F | 52% | 33% | 12 h 30 min |
| September 8 | 89°F | 73°F | 52% | 33% | 12 h 30 min |
| September 9 | 89°F | 73°F | 52% | 33% | 12 h 30 min |
| September 10 | 89°F | 73°F | 51% | 33% | 12 h 30 min |
| September 11 | 89°F | 73°F | 51% | 33% | 12 h 30 min |
| September 12 | 89°F | 73°F | 51% | 33% | 12 h 30 min |
| September 13 | 88°F | 73°F | 51% | 33% | 12 h 20 min |
| September 14 | 88°F | 73°F | 51% | 33% | 12 h 20 min |
| September 15 | 88°F | 73°F | 51% | 33% | 12 h 20 min |
| September 16 | 88°F | 73°F | 51% | 33% | 12 h 20 min |
| September 17 | 88°F | 73°F | 50% | 33% | 12 h 20 min |
| September 18 | 88°F | 73°F | 50% | 33% | 12 h 20 min |
| September 19 | 88°F | 73°F | 50% | 33% | 12 h 20 min |
| September 20 | 88°F | 73°F | 50% | 32% | 12 h 10 min |
| September 21 | 88°F | 73°F | 49% | 32% | 12 h 10 min |
| September 22 | 88°F | 73°F | 49% | 32% | 12 h 10 min |
| September 23 | 87°F | 72°F | 49% | 32% | 12 h 10 min |
| September 24 | 87°F | 72°F | 49% | 32% | 12 h 10 min |
| September 25 | 87°F | 72°F | 48% | 31% | 12 h 10 min |
| September 26 | 87°F | 72°F | 48% | 31% | 12 h |
| September 27 | 87°F | 72°F | 48% | 31% | 12 h |
| September 28 | 87°F | 72°F | 47% | 31% | 12 h |
| September 29 | 87°F | 72°F | 47% | 30% | 12 h |
| September 30 | 87°F | 72°F | 47% | 30% | 12 h |
- Normal high
- 88°FSeptember average
- Normal low
- 73°FSeptember average
- Precipitation
- 6.27 inmonth total
- Days with precipitation
- 150.01 inch or more
- Days at 90°F or more
- 7
- 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 USW00012895; monthly normals. Daylight is computed from the place's latitude with NOAA's solar equations.
Does it rain in Fort Pierce in September?
On a given September day the chance of 0.01 inch or more is 50% on average, highest around September 5 (52%). In all, 6.27 in falls on 15 days of a normal September, 2 of them with an inch or more.
In a normal September in Fort Pierce, 7 days reach 90°F.
Source: NOAA NCEI 1991-2020 daily and monthly normals, station USW00012895.
What are the records for September in Fort Pierce?
The warmest September temperature on Fort Pierce's official record (since 1901) is 99°F, on September 14, 1944; the coldest is 59°F, on September 29, 1998. The wettest September brought 19.90 in (1963).
The September mean against the 1991-2020 normal of 80.3°F: 2021 80.0°F (−0.3), 2022 80.1°F (−0.2), 2023 80.7°F (+0.4), 2024 82.7°F (+2.4), 2025 80.6°F (+0.3), 2026 80.5°F (+0.3). 4 of 6 ran warmer than normal.
| September | Mean | Against normal | Precip. |
|---|---|---|---|
| 2021 | 80.0°F | −0.3°F | 5.86 in |
| 2022 | 80.1°F | −0.2°F | 12.26 in |
| 2023 | 80.7°F | +0.4°F | 8.71 in |
| 2024 | 82.7°F | +2.4°F | 7.96 in |
| 2025 | 80.6°F | +0.3°F | 10.57 in |
| 2026 | 80.5°F | +0.3°F | 5.49 in |
Source: records: ACIS, NWS threaded record FPRthr; recent months: ACIS, station USW00012895. Records and recent months use complete months only.
How does September in Fort Pierce 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; Fort Pierce's is 88°F.
Source: NOAA NCEI 1991-2020 monthly normals for every station in the state.
Other months and places
- Fort Pierce in August90°F by day, 73°F at night
- Fort Pierce in October84°F by day, 69°F at night
- Fort Pierce through the yearEvery month, frost dates, records and recent years
- Florida in SeptemberThe statewide normal and the warmest and coolest places
- Plant City: Florida's warmest Septembernormal high 92°F