Isle of Man · elevation 52 ft AMSL
· 54.0831, -4.6239
Isle of Man Airport (Castletown) is an airport with the ICAO code EGNS and the IATA code IOM. Country: Isle of Man. Nearest settlement listed in the database: Castletown. OurAirports classifies it as a large airport. Its ICAO code starts with the EG prefix, which marks airports in Isle of Man. The four-letter code EGNS is used in flight operations and weather reports, while the three-letter IATA code IOM is used for ticketing and baggage handling. The airport reference point sits at 54°04'59"N, 4°37'26"W, at an elevation of 52 ft (16 m) above sea level. The applicable time zone is Europe/Isle_of_Man.
Aerial imagery showing the runway and apron layout - the zoom is matched to the longest runway.
| Threshold | Course | Length | Width | Surface |
|---|---|---|---|---|
| 03 | 30° | 1,199 m (3,934 ft) | 46 m (151 ft) | asphalt |
| 21 | 210° | |||
| 08 | 80° | 2,110 m (6,923 ft) | 46 m (151 ft) | asphalt |
| 26 | 260° |
The course is derived from the runway designator (number × 10), not from a survey - the actual magnetic bearing can differ by a few degrees.
Declared distances (TORA, TODA, ASDA, LDA) are published in the national AIP - they are not part of this table.
What the METAR reports from EGNS for 2023-2025 show - counted hour by hour.
We computed these statistics from 25,855 METAR reports issued by EGNS in 2023-2025. VFR conditions prevailed 68% of the time, MVFR 20% and IFR or LIFR 11%. Best month for VFR flying: May (79% of hours VFR). Most IFR and LIFR hours: March (15%).
Through the day, IFR or LIFR conditions are most frequent around 06:00 UTC (15% of reports at that hour) and least frequent around 23:00 UTC (9%).
Fog (FG) was reported on 16 days a year on average, most often in June. Thunderstorms (TS) occurred on 1 days a year on average, and snowfall on 4.
The wind most often blows from W (270°) - 13% of reports. Calm (0 kt) made up <1% of reports, and gusts of 25 kt or more appeared in 3%. Warmest month: August (average high 18.2 °C); coldest: January (average low 4.9 °C).
Day counts are for the selected period (for all years - the yearly average).
The top of each bar is the average daily high, the bottom the average daily low (usually around dawn), in °C.
Most often: W - 13% of reports. Each petal shows the direction the wind blows from (as in METAR) - the longer it is, the more often. Colour shows wind speed.
| Month | Avg high °C | Avg low °C | VFR | IFR/LIFR | Fog days | Thunderstorm days | Snow days |
|---|---|---|---|---|---|---|---|
| January | 8.4 | 4.9 | 60% | 13% | 0 | 0 | 2.3 |
| February | 9.0 | 5.7 | 59% | 12% | 1 | 0 | 0.3 |
| March | 9.6 | 5.5 | 65% | 15% | 2.3 | 0 | 1 |
| April | 11.7 | 6.9 | 77% | 11% | 2.3 | 0 | 0.3 |
| May | 15.4 | 10.0 | 79% | 10% | 2.3 | 0 | 0 |
| June | 17.2 | 12.0 | 76% | 9% | 2.7 | 0.3 | 0 |
| July | 17.9 | 13.1 | 74% | 12% | 2.3 | 0 | 0 |
| August | 18.2 | 13.6 | 78% | 10% | 0.7 | 0.7 | 0 |
| September | 16.7 | 12.0 | 79% | 7% | 1 | 0 | 0 |
| October | 13.9 | 10.5 | 62% | 12% | 1.3 | 0 | 0 |
| November | 11.2 | 7.1 | 61% | 10% | 0 | 0 | 0 |
| December | 10.1 | 7.0 | 51% | 12% | 0.3 | 0 | 0 |
Temperatures are averages of daily highs and lows. Day counts are the average per month over the period.
According to OurAirports data (compiled from AIP and FAA sources), Isle of Man Airport (Castletown) has 2 runways: 03/21 - 1,199 m long (3,934 ft), 46 m wide, asphalt surface; 08/26 - 2,110 m long (6,923 ft), 46 m wide, asphalt surface.
The longest of them is 08/26, at 2,110 m.
The thresholds are oriented as follows: 03/21 on 30° and 210° magnetic, 08/26 on 80° and 260° magnetic. A threshold designator is its magnetic heading divided by ten (ICAO Annex 14), so the runway axis can be read straight off the numbers.
For the 03/21 axis, wind from the south-east (around 120°) or from the north-west (around 300°) blows perpendicular to the runway and produces the largest crosswind component. Wind from around 30° or 210° acts along the runway, as a headwind or a tailwind. The decoder on this page computes those components automatically from the current METAR.
Weather reports for Isle of Man Airport (Castletown) are published under the ICAO code EGNS. A METAR is an observation of current conditions, usually issued every 30 or 60 minutes; a TAF is a forecast for the airport area, typically covering 9 to 30 hours.
The decoder breaks the EGNS report down into its parts: wind direction and speed including gusts and variability, visibility (including CAVOK and directional minimum visibility), weather phenomena by WMO code, cloud layers with their bases, temperature and dew point, QNH pressure, and the resulting flight category - VFR, MVFR, IFR or LIFR - using FAA thresholds.
Not every airport issues its own reports; many smaller airfields have no weather station. If no current data is available for EGNS, check the nearby airports listed below.
Reports always use UTC (the Z suffix). The Europe/Isle_of_Man zone is GMT+00:00 in winter and GMT+01:00 in summer - that is the shift to apply to the time in the report to get local time at the airport.
The closest airports in the database, measured in a straight line from the reference point, are Barrow Walney Island Airport (Barrow-in-Furness) (EGNL, 89 km), Newtownards Airport (Newtownards, Ards and North Down) (EGAD, 89 km), Anglesey Airport (Angelsey) (EGOV, 93 km). When no report is available for EGNS, they usually give the best approximation of conditions in the area.
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