| Name | Gagnheiði II |
| Type | Automated observational station |
| Station number | 4276 |
| WMO number | -99 |
| Abbreviation | gagnv |
| Forecast region | East fjords(af) |
| Location | 65°13.405', 14°15.537' (65.2234, 14.2589) |
| Height above sea-level | 949.0 m a.s.l. |
| Beginning of weather observations | 2022 |
| Station owned by | Veðurstofa Íslands |



