Climate averages 1991–2020
Gulfport weather
in September.
A hot, wet month: the 4th warmest and the 11th driest of the year.
Long-term climate patterns, not a forecast for a particular trip.
September is a hot month in Gulfport: daytime highs average 28.8°C and nights cool to about 22.9°C. By daytime temperature it is the 4th warmest of the 12 months.
Expect about 144 mm of rain on roughly 12 days, which makes September a wet month (the 11th driest of the 12 months). Daylight, from sunrise to sunset, lasts about 12 h 22 min on an average September day.
The nearest other city in this atlas is New Orleans (105 km away). In September its highs average 28.9°C, about as warm as Gulfport, with 123 mm of rain.
Among the 498 cities listed in the United States, Gulfport ranks joint 181st of 498 for the warmest September highs and joint 476th of 498 for the driest September (rainfall, lowest first). The mean September high of those 498 cities is 26.9°C; Gulfport is 1.9°C warmer than that mean.
From September to October, average highs fall by 4.0°C to 24.9°C, and monthly rainfall falls from 144 mm to 95 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
Gulfport climate table
| Month | Average highHigh / low | Average low | Rainfall mm/month | Rain days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | 14.8°C8.0°C | 8.0°C | 129 | 9.8 | 10.410 h |
| February | 16.7°C9.8°C | 9.8°C | 121 | 8.8 | 11.111 h |
| March | 19.8°C12.9°C | 12.9°C | 135 | 9.3 | 12.012 h |
| April | 23.2°C16.6°C | 16.6°C | 106 | 7.5 | 12.913 h |
| May | 27.1°C20.8°C | 20.8°C | 96 | 8.9 | 13.714 h |
| June | 29.8°C24.0°C | 24.0°C | 137 | 13.5 | 14.114 h |
| July | 30.6°C25.1°C | 25.1°C | 139 | 16.4 | 13.914 h |
| August | 30.5°C24.9°C | 24.9°C | 161 | 16.9 | 13.213 h |
| September, selected | 28.8°C22.9°C | 22.9°C | 144 | 12.1 | 12.412 h |
| October | 24.9°C18.1°C | 18.1°C | 95 | 7.7 | 11.511 h |
| November | 19.7°C12.7°C | 12.7°C | 101 | 7.3 | 10.711 h |
| December | 16.2°C9.5°C | 9.5°C | 115 | 9.6 | 10.210 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
- New Orleans in SeptemberUnited States · 105 kmHigh 28.9°C · Low 23.5°C · 123 mm rain
- Mobile in SeptemberUnited States · 107 kmHigh 29.4°C · Low 22.2°C · 117 mm rain
- Metairie in SeptemberUnited States · 110 kmHigh 29.1°C · Low 23.5°C · 118 mm rain
- Baton Rouge in SeptemberUnited States · 201 kmHigh 30.1°C · Low 21.8°C · 100 mm rain
- Jackson in SeptemberUnited States · 238 kmHigh 30.4°C · Low 19.9°C · 83 mm rain
- Lafayette (Louisiana), United States in SeptemberUnited States · 281 kmHigh 30.3°C · Low 22.0°C · 96 mm rain
- Montgomery in SeptemberUnited States · 346 kmHigh 30.2°C · Low 20.4°C · 78 mm rain
- Tuscaloosa in SeptemberUnited States · 347 kmHigh 29.9°C · Low 20.0°C · 80 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 Gulfport) is explained once on the Gulfport year overview and on the Sources, method and limits page.