Navarre, Florida · field elev 22 ft
Density Altitude at Fort Walton Beach (1J9)
Fort Walton Beach sits at 22 ft, and even a typical July afternoon (91 °F) only lifts density altitude to about 2,076 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 | 52.1 | −413 ft | 63.2 | 321 ft |
| February | 55.6 | −179 ft | 67.1 | 574 ft |
| March | 61.5 | 209 ft | 72.9 | 946 ft |
| April | 67.3 | 587 ft | 78.7 | 1,313 ft |
| May | 74.3 | 1,035 ft | 84.8 | 1,694 ft |
| June | 80.5 | 1,426 ft | 89.3 | 1,971 ft |
| July | 82.3 | 1,538 ft | 91.0 | 2,076 ft |
| August | 81.9 | 1,513 ft | 90.4 | 2,039 ft |
| September | 78.7 | 1,313 ft | 88.1 | 1,898 ft |
| October | 69.0 | 696 ft | 80.2 | 1,407 ft |
| November | 59.7 | 91 ft | 71.1 | 831 ft |
| December | 54.0 | −286 ft | 64.2 | 386 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 1J9
DENSITY ALTITUDE
Field elevation 22 ft — the air behaves like 2,076 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
- 2R4 — Peter Prince Field
Milton · elev 82 ft
- KVPS — Eglin AFB/Destin-Ft Walton Beach
Valparaiso/Destin-Ft Walton Beach · elev 84 ft
- KDTS — Destin Exec
Destin · elev 23 ft
- KPNS — Pensacola International
Pensacola · elev 121 ft
- 82J — Roscoe Field
Pensacola · elev 32 ft
- KCEW — Bob Sikes
Crestview · elev 214 ft
- 54J — Defuniak Springs
Defuniak Springs · elev 289 ft
- KECP — Northwest Florida Beaches International
Panama City · elev 69 ft
Frequently asked questions
How high does density altitude get at 1J9 in summer?
On a typical July afternoon — around 91 °F at the nearest NOAA normals station — density altitude at Fort Walton Beach reaches roughly 2,076 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 1J9 on an average day?
It swings with the seasons: from roughly −413 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 Fort Walton Beach?
22 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is 1J9 (FAA), in Navarre, Florida.