Marco Island, Florida · field elev 5 ft
Density Altitude at Marco Island Exec (KMKY)
Marco Island Exec sits at 5 ft, and even a typical August afternoon (92 °F) only lifts density altitude to about 2,085 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 | 64.4 | 378 ft | 73.9 | 989 ft |
| February | 66.7 | 527 ft | 76.2 | 1,134 ft |
| March | 69.4 | 701 ft | 78.9 | 1,305 ft |
| April | 74.1 | 1,001 ft | 83.2 | 1,574 ft |
| May | 78.6 | 1,286 ft | 87.5 | 1,840 ft |
| June | 82.2 | 1,511 ft | 90.1 | 2,000 ft |
| July | 83.5 | 1,592 ft | 91.1 | 2,061 ft |
| August | 83.8 | 1,611 ft | 91.5 | 2,085 ft |
| September | 82.6 | 1,536 ft | 90.0 | 1,994 ft |
| October | 78.8 | 1,298 ft | 86.9 | 1,803 ft |
| November | 72.0 | 867 ft | 80.5 | 1,405 ft |
| December | 67.7 | 591 ft | 76.8 | 1,172 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 KMKY
DENSITY ALTITUDE
Field elevation 5 ft — the air behaves like 2,116 ft.
- PRESSURE ALT
- 6 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
- KAPF — Naples Municipal
Naples · elev 8 ft
- X01 — Everglades Airpark
Everglades City · elev 4 ft
- KIMM — Immokalee Regional
Immokalee · elev 37 ft
- KRSW — Southwest Florida International
Fort Myers · elev 30 ft
- KFMY — Page Field
Fort Myers · elev 17 ft
- KTNT — Dade-Collier Training And Transition
Miami · elev 13 ft
- X14 — La Belle Municipal
La Belle · elev 20 ft
- 2IS — Airglades
Clewiston · elev 20 ft
Frequently asked questions
How high does density altitude get at KMKY in summer?
On a typical August afternoon — around 92 °F at the nearest NOAA normals station — density altitude at Marco Island Exec reaches roughly 2,085 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 KMKY on an average day?
It swings with the seasons: from roughly 378 ft at the coldest month's average temperature to about 1,611 ft at the warmest month's — all from a constant field elevation of 5 ft. The month-by-month table above carries the full year.
What is the field elevation of Marco Island Exec?
5 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is KMKY (ICAO) / MKY (FAA), in Marco Island, Florida.