Sebastian, Florida · field elev 22 ft
Density Altitude at Sebastian Municipal (X26)
Sebastian Municipal sits at 22 ft, and even a typical August afternoon (92 °F) only lifts density altitude to about 2,124 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 | 61.0 | 177 ft | 72.9 | 946 ft |
| February | 63.5 | 340 ft | 75.4 | 1,105 ft |
| March | 66.5 | 535 ft | 78.5 | 1,300 ft |
| April | 71.4 | 850 ft | 82.8 | 1,569 ft |
| May | 76.0 | 1,143 ft | 86.6 | 1,805 ft |
| June | 80.3 | 1,413 ft | 89.9 | 2,008 ft |
| July | 82.0 | 1,520 ft | 91.3 | 2,094 ft |
| August | 82.3 | 1,538 ft | 91.8 | 2,124 ft |
| September | 80.4 | 1,420 ft | 89.2 | 1,965 ft |
| October | 75.7 | 1,124 ft | 84.9 | 1,700 ft |
| November | 68.8 | 683 ft | 79.0 | 1,332 ft |
| December | 63.5 | 340 ft | 74.6 | 1,054 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 X26
DENSITY ALTITUDE
Field elevation 22 ft — the air behaves like 2,137 ft.
- PRESSURE ALT
- 23 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
Nearby Florida fields
- X59 — Valkaria
Valkaria · elev 26 ft
- KVRB — Vero Beach Regional
Vero Beach · elev 24 ft
- X52 — New Hibiscus Airpark
Vero Beach · elev 25 ft
- KMLB — Melbourne Orlando International
Melbourne · elev 33 ft
- KFPR — Treasure Coast International
Fort Pierce · elev 23 ft
- KCOI — Merritt Island
Merritt Island · elev 6 ft
- 2RR — River Ranch Resort
River Ranch · elev 55 ft
- KOBE — Okeechobee County
Okeechobee · elev 34 ft
Frequently asked questions
How high does density altitude get at X26 in summer?
On a typical August afternoon — around 92 °F at the nearest NOAA normals station — density altitude at Sebastian Municipal reaches roughly 2,124 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 X26 on an average day?
It swings with the seasons: from roughly 177 ft at the coldest month's average temperature to about 1,538 ft at the warmest month's — all from a constant field elevation of 22 ft. The month-by-month table above carries the full year.
What is the field elevation of Sebastian Municipal?
22 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is X26 (FAA), in Sebastian, Florida.