Galveston, Texas · field elev 6 ft
Density Altitude at Scholes International At Galveston (KGLS)
Scholes International At Galveston sits at 6 ft, and even a typical August afternoon (92 °F) only lifts density altitude to about 2,117 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 | 56.0 | −173 ft | 63.2 | 301 ft |
| February | 59.3 | 45 ft | 66.4 | 509 ft |
| March | 65.2 | 431 ft | 72.0 | 869 ft |
| April | 71.5 | 837 ft | 78.0 | 1,249 ft |
| May | 78.2 | 1,262 ft | 84.0 | 1,625 ft |
| June | 83.8 | 1,612 ft | 89.5 | 1,964 ft |
| July | 85.5 | 1,718 ft | 91.3 | 2,074 ft |
| August | 85.9 | 1,742 ft | 92.0 | 2,117 ft |
| September | 82.4 | 1,525 ft | 88.7 | 1,915 ft |
| October | 75.3 | 1,079 ft | 82.1 | 1,506 ft |
| November | 65.5 | 450 ft | 72.4 | 894 ft |
| December | 58.5 | −7 ft | 65.5 | 450 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 KGLS
DENSITY ALTITUDE
Field elevation 6 ft — the air behaves like 2,117 ft.
- PRESSURE ALT
- 7 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 KGLS in summer?
On a typical August afternoon — around 92 °F at the nearest NOAA normals station — density altitude at Scholes International At Galveston reaches roughly 2,117 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 KGLS on an average day?
It swings with the seasons: from roughly −173 ft at the coldest month's average temperature to about 1,742 ft at the warmest month's — all from a constant field elevation of 6 ft. The month-by-month table above carries the full year.
What is the field elevation of Scholes International At Galveston?
6 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is KGLS (ICAO) / GLS (FAA), in Galveston, Texas.