Hayward, California · field elev 52 ft
Density Altitude at Hayward Exec (KHWD)
Hayward Exec sits at 52 ft, and even a typical September afternoon (77 °F) only lifts density altitude to about 1,243 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 | 51.2 | −436 ft | 59.3 | 102 ft |
| February | 53.5 | −282 ft | 61.9 | 273 ft |
| March | 55.9 | −122 ft | 64.4 | 436 ft |
| April | 58.2 | 30 ft | 66.8 | 591 ft |
| May | 60.9 | 207 ft | 69.3 | 752 ft |
| June | 64.6 | 449 ft | 74.0 | 1,053 ft |
| July | 66.1 | 546 ft | 74.7 | 1,097 ft |
| August | 67.3 | 623 ft | 76.4 | 1,205 ft |
| September | 67.3 | 623 ft | 77.0 | 1,243 ft |
| October | 63.5 | 377 ft | 73.5 | 1,021 ft |
| November | 56.2 | −103 ft | 65.1 | 481 ft |
| December | 51.2 | −436 ft | 59.4 | 109 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 KHWD
DENSITY ALTITUDE
Field elevation 52 ft — the air behaves like 1,243 ft.
- PRESSURE ALT
- 53 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
- KOAK — Oakland San Francisco Bay
Oakland · elev 9 ft
- KSQL — San Carlos
San Carlos · elev 6 ft
- KPAO — Palo Alto
Palo Alto · elev 7 ft
- KSFO — San Francisco International
San Francisco · elev 13 ft
- KLVK — Livermore Municipal
Livermore · elev 400 ft
- KSJC — Norman Y Mineta San Jose International
San Jose · elev 62 ft
- KHAF — Half Moon Bay
Half Moon Bay · elev 66 ft
- KCCR — Buchanan Field
Concord · elev 26 ft
Frequently asked questions
How high does density altitude get at KHWD in summer?
On a typical September afternoon — around 77 °F at the nearest NOAA normals station — density altitude at Hayward Exec reaches roughly 1,243 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 KHWD on an average day?
It swings with the seasons: from roughly −436 ft at the coldest month's average temperature to about 623 ft at the warmest month's — all from a constant field elevation of 52 ft. The month-by-month table above carries the full year.
What is the field elevation of Hayward Exec?
52 ft MSL, from the FAA NASR airport record (28-day cycle effective 2026-08-06). The identifier is KHWD (ICAO) / HWD (FAA), in Hayward, California.