Lukla flight status & weather

Source: Lukla Weather Update archive, containing 5,474 text posts. The archive contains 4,523 unique reports that identify Lukla. Repeated copies of the same report are removed before counting days. The charts cover every calendar day in the archive range, including days without reports.

Each Nepal day counts once per month, or once within each time range. One qualifying report is enough; mixed days are included among qualifying days and flagged in the detail. The airplane chart uses explicit VFR mentions, excluding reports with visibility below 5 km or a fixed-wing/all-operations closure. Visibility of exactly 5 km does not close the airplane window. Numeric visibility alone does not infer VFR. The archive was decoded automatically and has not had individual staff review. Missing values and “NIL” stay unknown unless the report explicitly says closed for all operations. That statement counts as below 1,500 m and interrupts both flight windows; no numeric distance is invented. Months use the original Nepal posting date. Time-of-day comparisons use a reported observation time, never a substituted posting time. 870 untimed reports contribute to daily totals but not time ranges; 661 reports before 06:00 and 2 from 18:00 are outside the displayed ranges. The time chart starts at 06:00 Nepal time.

Reporting frequency varies. These percentages describe calendar days with at least one qualifying report, not hours an airport was open, completed flights or a forecast. The 1,500 m threshold is our visibility rule, rather than a statement of all aviation requirements.

Our visibility rule keeps this comparison consistent. CAAN’s published visual flight rules include conditional helicopter exceptions. The operator and pilot determine the requirements for a particular flight.