Lanai City, Hawaii · field elev 1,308 ft
Density Altitude at Lanai (PHNY)
Lanai sits at 1,308 ft, and even a typical August afternoon (83 °F) only lifts density altitude to about 3,176 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 | 68.0 | 2,212 ft | 76.2 | 2,730 ft |
| February | 68.0 | 2,212 ft | 76.1 | 2,723 ft |
| March | 68.6 | 2,250 ft | 76.5 | 2,748 ft |
| April | 69.7 | 2,320 ft | 78.4 | 2,867 ft |
| May | 71.4 | 2,428 ft | 79.7 | 2,948 ft |
| June | 73.5 | 2,560 ft | 81.8 | 3,078 ft |
| July | 74.4 | 2,617 ft | 82.5 | 3,121 ft |
| August | 75.1 | 2,661 ft | 83.4 | 3,176 ft |
| September | 74.7 | 2,636 ft | 83.0 | 3,152 ft |
| October | 73.9 | 2,585 ft | 81.9 | 3,084 ft |
| November | 71.5 | 2,434 ft | 79.0 | 2,904 ft |
| December | 69.4 | 2,301 ft | 77.3 | 2,798 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 PHNY
DENSITY ALTITUDE
Field elevation 1,308 ft — the air behaves like 3,152 ft.
- PRESSURE ALT
- 1,309 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 Hawaii fields
- PHMK — Molokai
Kaunakakai · elev 454 ft
- PHLU — Kalaupapa
Kalaupapa · elev 24 ft
- PHOG — Kahului
Kahului · elev 55 ft
- PHHN — Hana
Hana · elev 78 ft
- PHNL — Daniel K Inouye International
Honolulu · elev 14 ft
- PHUP — Upolu
Hawi · elev 96 ft
- PHJR — Kalaeloa (John Rodgers Field)
Kapolei · elev 32 ft
- PHKO — Ellison Onizuka Kona International At Keahole
Kailua-Kona · elev 51 ft
Frequently asked questions
How high does density altitude get at PHNY in summer?
On a typical August afternoon — around 83 °F at the nearest NOAA normals station — density altitude at Lanai reaches roughly 3,176 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 PHNY on an average day?
It swings with the seasons: from roughly 2,212 ft at the coldest month's average temperature to about 2,661 ft at the warmest month's — all from a constant field elevation of 1,308 ft. The month-by-month table above carries the full year.
What is the field elevation of Lanai?
1,308 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is PHNY (ICAO) / LNY (FAA), in Lanai City, Hawaii.