San Jose, California · field elev 62 ft
Density Altitude at Norman Y Mineta San Jose International (KSJC)
Norman Y Mineta San Jose International sits at 62 ft, and even a typical August afternoon (81 °F) only lifts density altitude to about 1,531 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 | 50.8 | −450 ft | 59.8 | 147 ft |
| February | 53.2 | −290 ft | 62.4 | 318 ft |
| March | 56.1 | −97 ft | 65.9 | 545 ft |
| April | 58.8 | 82 ft | 69.2 | 758 ft |
| May | 63.0 | 357 ft | 73.8 | 1,052 ft |
| June | 67.3 | 636 ft | 79.1 | 1,387 ft |
| July | 69.5 | 777 ft | 80.8 | 1,494 ft |
| August | 70.0 | 809 ft | 81.4 | 1,531 ft |
| September | 69.0 | 745 ft | 80.7 | 1,487 ft |
| October | 64.3 | 441 ft | 75.8 | 1,179 ft |
| November | 55.9 | −110 ft | 66.1 | 558 ft |
| December | 50.6 | −464 ft | 59.5 | 128 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 KSJC
DENSITY ALTITUDE
Field elevation 62 ft — the air behaves like 1,506 ft.
- PRESSURE ALT
- 63 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 California fields
- KRHV — Reid-Hillview Of Santa Clara County
San Jose · elev 135 ft
- KPAO — Palo Alto
Palo Alto · elev 7 ft
- KSQL — San Carlos
San Carlos · elev 6 ft
- KHWD — Hayward Exec
Hayward · elev 52 ft
- KLVK — Livermore Municipal
Livermore · elev 400 ft
- E16 — San Martin
San Martin · elev 284 ft
- KOAK — Oakland San Francisco Bay
Oakland · elev 9 ft
- KSFO — San Francisco International
San Francisco · elev 13 ft
Frequently asked questions
How high does density altitude get at KSJC in summer?
On a typical August afternoon — around 81 °F at the nearest NOAA normals station — density altitude at Norman Y Mineta San Jose International reaches roughly 1,531 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 KSJC on an average day?
It swings with the seasons: from roughly −464 ft at the coldest month's average temperature to about 809 ft at the warmest month's — all from a constant field elevation of 62 ft. The month-by-month table above carries the full year.
What is the field elevation of Norman Y Mineta San Jose International?
62 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is KSJC (ICAO) / SJC (FAA), in San Jose, California.