Gulfport, MS weather in September
In September, Gulfport sees highs around 87°F and lows around 72°F: warm and oppressively humid, with some rain. Expect about 9 wet days.
- Normal high
- 87°F
- Normal low
- 72°F
- Wet days
- 9
- 5.2 in total
- Muggy days
- 25
- dew point 65°F+
How September changes from start to finish
| September 1 | September 30 | |
|---|---|---|
| Normal high | 89°F | 84°F |
| Normal low | 74°F | 68°F |
| Chance of a wet day | 35% | 25% |
| Sunrise / sunset | 6:33 am / 7:19 pm | 6:49 am / 6:43 pm |
| Daylight | 12.8 h | 11.9 h |
Chance of a wet day: average for the first and last 7 days of the month. Times are local clock time (Central Time).
A typical September day
- 6 am70°Fdew point 67°F
- 9 am80°Fdew point 69°F
- Noon85°Fdew point 68°F
- 3 pm85°Fdew point 67°F
- 6 pm79°Fdew point 69°F
- 9 pm74°Fdew point 69°F
NOAA hourly normals (local standard time) from Mobile (55 mi away); average wind 6 mph; clear or few clouds in 43% of daytime hours, mostly cloudy or overcast in 30%.
What kind of days to expect
- Comfortable dayshigh 65-80°F and dew point under 60°F1 of 30
- Beach dayshigh 80-95°F, under 0.05 in of rain, afternoon wind under 15 mph22 of 30
- Hot dayshigh 90°F or more8 of 30
- Muggy daysdaily mean dew point 65°F or more25 of 30
- Wet daysat least 0.01 in of rain or melted snow9 of 30
- Notable rainat least 0.10 in6 of 30
- Freezing nightslow 32°F or below0 of 30
Average days per September, counted from daily records for each year 1991-2020.
Rain in September
Normal precipitation is 5.2 in; a dry September brings about 2.1 in and a wet one about 6.2 in (25th and 75th percentiles). About 3 days bring half an inch or more, and about 1 an inch or more.
How September varies from year to year
- Warmest September, 1991-20202005: average high 91°F
- Coolest September1991: average high 83°F
- Wettest September1998: 27.7 in
- Driest September2019: 0.4 in
- Highest reading98°F (September 13, 2019)
- Lowest reading52°F (September 30, 2020)
From the station's daily records with NOAA quality flags removed; most recent date shown when a reading repeats.
September compared with August and October
| August | September | October | |
|---|---|---|---|
| Normal high | 90°F | 87°F | 79°F |
| Normal low | 75°F | 72°F | 62°F |
| Wet days | 13 | 9 | 7 |
| Comfortable days | 0 | 1 | 10 |
| Daylight | 13.2 h | 12.3 h | 11.4 h |
Highs change by -3°F from August and -8°F into October.
How Gulfport ranks in September
- Normal high119th warmest of 378 cities; 2nd of 2 in Mississippi
- Wet days221st driest of 378
- Comfortable days281st most of 342
What to pack for Gulfport in September
- Light, breathable clothing – highs near 87°F and about 25 muggy days
- A rain jacket or umbrella – rain on about 9 days
- A swimsuit – about 22 beach days
Heating and cooling
September has 0 heating degree days and 426 cooling degree days (base 65°F), 10% of the year's total heating and cooling demand.
Questions
How hot is Gulfport in September?
The normal high is 87°F and the normal low is 72°F. From 1991 to 2020 the hottest September reading was 98°F (most recently on September 13, 2019).
Does it rain a lot in Gulfport in September?
About 9 days in September have at least 0.01 in of precipitation, and the normal total is 5.2 in. The wettest September in 1991-2020 was in 1998 (27.7 in); the driest was in 2019 (0.4 in).
Is September a good time to visit Gulfport?
September ranks 10th of 12 months on our comfort score for Gulfport (45 out of 100). It has about 1 comfortable day and about 8 days at 90°F or hotter. The best months are March and April.
Where the numbers come from
- Temperature, rain, snowfall and snow depth: Biloxi (USC00220792), 5.8 mi ENE of the city center, 10 ft . NOAA normals and daily records, 1991-2020.
- Frost dates: Gulfport - Biloxi Airport (USW00093874), 3.2 mi NNE of the city center, 42 ft . NOAA normals and daily records, 1991-2020.
- Humidity and wind by hour and cloud cover: Mobile (USW00013894), 55 mi ENE of the city center, 208 ft (188 ft higher than the city). NOAA normals and daily records, 1991-2020.
- Daily humidity and wind: Keesler Air Force Base (747686-13820), 11 mi ENE of the city center, 33 ft . Hourly observations, 1991-2020.