September is one of the warmer months of the year in Port Charlotte, with average highs near 30°C and lows around 23.3°C (mean 26.7°C). It is a relatively wet time of year, averaging 177 mm of rainfall and 85% relative humidity across the period.
September is one of the warmer months of the year in Port Charlotte. Across 45 years of records, the warmest September in Port Charlotte was 2024 — when the month averaged 28.3°C — while the coldest were 1983, 1984 and 1985 at 25.5°C. Typical September days reach 30°C with nights near 23.3°C. The long-term trend is warming, about 0.3°C per decade.
September is a relatively wet time of year in Port Charlotte, averaging 177 mm of rainfall. The wettest September on record was 2022 with 372 mm, while the driest was 2019 at 40 mm.
Relative humidity in Port Charlotte during September averages 85%. The most humid September was 1994 at 88%, and the least humid was 1996 at 78%.
September receives about 5.3 kWh/m²/day of solar energy in Port Charlotte. The sunniest September was 2019 at 6 kWh/m²/day, and the cloudiest was 1998 at 4.4.
Average wind speed in Port Charlotte during September is 2 m/s. The windiest September was 2004 at 3.6 m/s, while the calmest were 2009, 2014 and 2015, among others at 1.4 m/s.
Ranked against the other 11 months using 1981–2025 averages.
| Metric | 1980s | 1990s | 2000s | 2010s | 2020s | Change |
|---|---|---|---|---|---|---|
| Avg Temp | 26.1°C | 26.5°C | 26.7°C | 26.9°C | 27.4°C | +1.3°C |
| Avg High | 29.5°C | 29.8°C | 30.0°C | 30.3°C | 30.9°C | +1.4°C |
| Avg Low | 22.7°C | 23.2°C | 23.4°C | 23.5°C | 24.0°C | +1.3°C |
| Avg Rain | 164 mm | 170 mm | 187 mm | 168 mm | 204 mm | +41 mm |
September temperatures in Port Charlotte have risen by about 1.9°C between 1981–1985 and 2021–2025.
September has ranged from a record low of 15.7°C (1981) to a record high of 34.2°C (2023).
Rainfall in September is a relatively wet time of year, averaging 177 mm, with a wettest year of 372 mm.
A quieter season to visit Port Charlotte
If your dates are flexible, the more temperate months of November and April tend to be the most comfortable for visiting Port Charlotte. That said, September — with days averaging 30°C and nights around 23.3°C (mean 26.7°C) and higher rainfall (177 mm) — can still be rewarding for travellers who don't mind the warmth, and often means fewer crowds.
| Year | Avg High | Avg Temp | Avg Low | Hottest Day | Coldest Day | Rainfall | Humidity | Wind | Solar |
|---|---|---|---|---|---|---|---|---|---|
| 2025 | 30.7°C | 27.2°C | 23.6°C | 32.1°C | 21.3°C | 126 mm | 84% | 1.6 m/s | 5 |
| 2024 🔥 | 31.5°C | 28.3°C | 25.1°C | 32.7°C | 23.1°C | 185 mm | 85% | 1.8 m/s | 5.2 |
| 2023 | 31.9°C | 28.0°C | 24.1°C | 34.2°C | 21.2°C | 194 mm | 79% | 1.5 m/s | 5.6 |
| 2022 🌧️ | 30.4°C | 27.0°C | 23.6°C | 33.6°C | 16.6°C | 372 mm | 85% | 1.7 m/s | 4.8 |
| 2021 | 30.3°C | 26.9°C | 23.5°C | 31.6°C | 19.7°C | 155 mm | 83% | 1.5 m/s | 5.3 |
| 2020 | 30.4°C | 27.1°C | 23.8°C | 33.7°C | 18.1°C | 194 mm | 85% | 2.1 m/s | 5.2 |
| 2019 | 30.9°C | 27.0°C | 23.1°C | 32.7°C | 19.4°C | 40 mm | 82% | 2.7 m/s | 6 |
| 2018 | 30.6°C | 27.3°C | 24.0°C | 32.7°C | 22.4°C | 137 mm | 86% | 1.7 m/s | 5.8 |
| 2017 | 30.1°C | 26.9°C | 23.6°C | 31.8°C | 21.1°C | 303 mm | 86% | 2.2 m/s | 5.4 |
| 2016 | 30.4°C | 27.2°C | 24.1°C | 32.4°C | 22.8°C | 193 mm | 86% | 1.6 m/s | 5.5 |
| 2015 | 30.1°C | 27.0°C | 24.0°C | 32.1°C | 22.6°C | 188 mm | 86% | 1.4 m/s | 4.8 |
| 2014 | 29.9°C | 26.6°C | 23.4°C | 33.2°C | 21.9°C | 232 mm | 85% | 1.4 m/s | 4.9 |
| 2013 | 29.7°C | 26.3°C | 22.9°C | 31.4°C | 20.2°C | 178 mm | 86% | 1.8 m/s | 5.4 |
| 2012 | 29.4°C | 26.1°C | 22.7°C | 32.1°C | 19.4°C | 145 mm | 84% | 1.9 m/s | 5.3 |
| 2011 | 30.7°C | 27.1°C | 23.6°C | 32.5°C | 21.7°C | 150 mm | 82% | 1.7 m/s | 5.2 |
| 2010 | 31.1°C | 27.3°C | 23.5°C | 32.8°C | 20.6°C | 110 mm | 81% | 2.1 m/s | 5.7 |
| 2009 | 29.9°C | 26.8°C | 23.7°C | 31.7°C | 19.6°C | 168 mm | 86% | 1.4 m/s | 5.3 |
| 2008 | 29.9°C | 26.4°C | 22.9°C | 31.8°C | 17.7°C | 133 mm | 85% | 2.4 m/s | 5.1 |
| 2007 | 30.7°C | 27.1°C | 23.6°C | 32.4°C | 21.4°C | 141 mm | 81% | 2.1 m/s | 5.7 |
| 2006 | 30.0°C | 26.4°C | 22.8°C | 31.5°C | 17.6°C | 177 mm | 84% | 1.6 m/s | 5.7 |
| 2005 | 30.4°C | 26.8°C | 23.3°C | 32.0°C | 20.9°C | 115 mm | 84% | 2.3 m/s | 5.4 |
| 2004 | 29.6°C | 26.7°C | 23.7°C | 31.7°C | 20.1°C | 228 mm | 88% | 3.6 m/s | 5 |
| 2003 | 29.6°C | 26.4°C | 23.3°C | 31.8°C | 21.0°C | 251 mm | 87% | 1.9 m/s | 5 |
| 2002 | 30.3°C | 27.1°C | 23.9°C | 31.8°C | 23.0°C | 155 mm | 87% | 2.1 m/s | 5.1 |
| 2001 | 28.7°C | 25.7°C | 22.6°C | 31.0°C | 17.5°C | 297 mm | 86% | 1.9 m/s | 4.5 |
| 2000 | 30.5°C | 27.1°C | 23.7°C | 32.9°C | 20.8°C | 208 mm | 83% | 2 m/s | 5.3 |
| 1999 | 29.9°C | 26.5°C | 23.1°C | 32.9°C | 18.1°C | 170 mm | 84% | 2.3 m/s | 4.8 |
| 1998 | 29.8°C | 27.0°C | 24.1°C | 31.8°C | 21.2°C | 229 mm | 87% | 2.6 m/s | 4.4 |
| 1997 | 30.0°C | 26.5°C | 23.0°C | 31.6°C | 19.2°C | 197 mm | 82% | 2.1 m/s | 5.1 |
| 1996 | 31.3°C | 27.3°C | 23.3°C | 33.3°C | 20.0°C | 113 mm | 78% | 2 m/s | 5.8 |
| 1995 | 30.0°C | 26.6°C | 23.3°C | 31.3°C | 21.5°C | 173 mm | 86% | 1.6 m/s | 5.1 |
| 1994 | 28.6°C | 25.8°C | 23.0°C | 31.5°C | 20.7°C | 276 mm | 88% | 1.8 m/s | 4.7 |
| 1993 | 29.5°C | 26.3°C | 23.1°C | 31.6°C | 18.3°C | 153 mm | 86% | 1.8 m/s | 5.8 |
| 1992 | 29.2°C | 26.1°C | 23.1°C | 30.7°C | 20.3°C | 142 mm | 88% | 1.8 m/s | 5.2 |
| 1991 | 29.7°C | 26.3°C | 22.9°C | 31.2°C | 16.6°C | 136 mm | 86% | 1.9 m/s | 5.5 |
| 1990 | 30.0°C | 26.6°C | 23.2°C | 31.8°C | 18.4°C | 114 mm | 83% | 1.8 m/s | 5.3 |
| 1989 | 30.3°C | 26.8°C | 23.4°C | 32.0°C | 21.1°C | 180 mm | 84% | 1.8 m/s | 5.3 |
| 1988 | 30.3°C | 26.9°C | 23.4°C | 31.7°C | 19.6°C | 146 mm | 84% | 2.5 m/s | 5.1 |
| 1987 | 30.3°C | 26.8°C | 23.3°C | 32.3°C | 21.2°C | 164 mm | 81% | 1.4 m/s | 4.9 |
| 1986 | 30.0°C | 26.4°C | 22.8°C | 31.7°C | 21.6°C | 123 mm | 84% | 1.8 m/s | 5.7 |
| 1985 | 28.8°C | 25.5°C | 22.3°C | 30.7°C | 20.9°C | 167 mm | 86% | 2.5 m/s | 5.7 |
| 1984 | 29.0°C | 25.5°C | 22.0°C | 31.2°C | 20.2°C | 147 mm | 84% | 2.6 m/s | 5.2 |
| 1983 ❄️ | 28.6°C | 25.5°C | 22.4°C | 30.7°C | 16.7°C | 192 mm | 87% | 2.1 m/s | — |
| 1982 | 29.0°C | 25.8°C | 22.6°C | 31.7°C | 18.5°C | 224 mm | 86% | 1.8 m/s | — |
| 1981 | 29.3°C | 25.7°C | 22.1°C | 31.1°C | 15.7°C | 129 mm | 84% | 1.9 m/s | — |
Actual recorded September data for each year, 1981–2025 — sourced from NASA POWER.
The average high in September is around 30°C with lows near 23.3°C (mean 26.7°C), based on 45 years of NASA POWER data.
September averages 177 mm of rainfall in Port Charlotte, a relatively wet time of year. The wettest on record was 372 mm in 2022.
The hottest September reached 34.2°C in 2023. The coldest dipped to 15.7°C in 1981.
Comparing the earliest years on record (1981–1985) with the most recent (2021–2025), average September temperatures have risen by about 1.9°C. Daytime highs moved from 28.9°C to 31°C and overnight lows from 22.3°C to 24°C over the same span.
September is one of the warmer months of the year in Port Charlotte and a relatively wet time of year, so plan for around 30°C daytime highs and 23.3°C at night.
Not quite — September is the 9th coolest month in Port Charlotte, averaging 26.7°C.
For September in Port Charlotte, pack light, breathable clothing and sun protection, with typical highs of 30°C and lows of 23.3°C. Bring an umbrella or light rain jacket too.
Relative humidity in September averages 85% — quite humid.
Average wind speed in September is 2 m/s. The windiest September on record averaged 3.6 m/s (2004).
The wettest September on record was 2022 with 372 mm. On average, September sees 177 mm.
All figures are derived from NASA POWER (Prediction Of Worldwide Energy Resources), based on MERRA-2 satellite reanalysis, covering 1981–2025.
Explore how the weather in Port Charlotte behaves each September, based on 45 years of NASA POWER climate data from 1981 to 2025. This page breaks down average temperatures, rainfall, humidity, wind and solar radiation for September specifically, along with year-by-year records and how the month has changed over the decades.
