Gulfport, Mississippi · field elev 28 ft
Density Altitude at Gulfport-Biloxi International (KGPT)
Gulfport-Biloxi International sits at 28 ft, and even a typical August afternoon (91 °F) only lifts density altitude to about 2,065 ft — heat still trims performance, but the field rarely turns high-and-hot.
Typical density altitude by month
| Month | Avg temp °F | DA at avg temp | Afternoon high °F | DA on a typical afternoon |
|---|---|---|---|---|
| January | 51.8 | −425 ft | 61.3 | 204 ft |
| February | 55.5 | −179 ft | 64.8 | 432 ft |
| March | 61.1 | 191 ft | 70.4 | 793 ft |
| April | 67.5 | 607 ft | 76.5 | 1,182 ft |
| May | 75.0 | 1,087 ft | 83.6 | 1,627 ft |
| June | 80.9 | 1,458 ft | 88.7 | 1,942 ft |
| July | 82.7 | 1,571 ft | 90.4 | 2,046 ft |
| August | 82.6 | 1,564 ft | 90.7 | 2,065 ft |
| September | 79.2 | 1,352 ft | 87.8 | 1,886 ft |
| October | 70.0 | 768 ft | 79.9 | 1,396 ft |
| November | 59.6 | 92 ft | 70.0 | 768 ft |
| December | 54.0 | −278 ft | 63.5 | 347 ft |
▲ above 5,000 ft · ⚠ above 8,000 ft. These are planning references at standard pressure and dry air — afternoon humidity and low pressure both push the real number higher. Run today's values below.
Run today’s numbers for KGPT
DENSITY ALTITUDE
Field elevation 28 ft — the air behaves like 2,083 ft.
- PRESSURE ALT
- 29 ft
- ISA DEVIATION
- —
- RULE-OF-THUMB DA
- —
- AIR DENSITY INDEX
- —
- AIR DENSITY
- —
- WATER · GRAINS/LB
- —
For training and reference · verify with official sources and your POH before flight · no tool on this site renders a go / no-go judgment
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Frequently asked questions
How high does density altitude get at KGPT in summer?
On a typical August afternoon — around 91 °F at the nearest NOAA normals station — density altitude at Gulfport-Biloxi International reaches roughly 2,065 ft at standard pressure. Hotter-than-normal days, low pressure, and humidity all push it higher, so run the day's actual numbers before flying.
What is the density altitude at KGPT on an average day?
It swings with the seasons: from roughly −425 ft at the coldest month's average temperature to about 1,571 ft at the warmest month's — all from a constant field elevation of 28 ft. The month-by-month table above carries the full year.
What is the field elevation of Gulfport-Biloxi International?
28 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is KGPT (ICAO) / GPT (FAA), in Gulfport, Mississippi.