Porthtowan Airfield
Daylight today(Jul 18, 2026, local time)
About 15h 54m of daylight. Civil twilight (dawn/dusk) approximates the FAA definition of night for logging and currency. Times are computed and approximate — verify with official sources.
About Porthtowan Airfield
Porthtowan Airfield is a small airport in St Agnes, Cornwall, United Kingdom. It sits at an elevation of 341 ft (104 m) and has 1 runway, the longest 1,443 ft / 440 m. It observes Europe/London local time. The nearest airport is Perranporth Airfield (EGTP), about 3.3 nm to the ne.
Summary generated from this airport’s structured data — reference only.
Map
Runway centrelines, navaids and overlapping airspace. Tiles © OpenStreetMap contributors. Reference only — not for navigation.
Runways (1)
| Runway | Length | Width | Surface | Lighting | Status |
|---|---|---|---|---|---|
| 03 / 21 | 1,443 ft / 440 m | — | Grass | Unlit | Open |
Tall obstacles nearby
| Obstacle | Height AGL | Top (MSL) | Lit |
|---|---|---|---|
| Tregonning Hill | 636 ft | 499 ft | — |
| Redruth transmitter | 568 ft | 771 ft | — |
| Obstacle | — | 315 ft | — |
| Obstacle | — | 374 ft | — |
| Obstacle | — | 377 ft | — |
| Obstacle | — | 344 ft | — |
| Roskrow Wind Farm | — | 584 ft | — |
| Obstacle | — | 289 ft | — |
Tallest obstacles within ~10 nm. Data via OpenAIP. Reference only — consult official charts.
Nearby airports
Great-circle distance and true bearing from Porthtowan Airfield.
Frequently asked questions
Where is Porthtowan Airfield located?
Porthtowan Airfield is small airport located in St Agnes, Cornwall, United Kingdom, at an elevation of 341 ft (104 m).
How many runways does Porthtowan Airfield have?
Porthtowan Airfield has 1 runway, the longest being 1,443 ft / 440 m.
What time zone is Porthtowan Airfield in?
Porthtowan Airfield is in the Europe/London time zone (UTC+01:00).
What is the magnetic variation at Porthtowan Airfield?
The magnetic variation (declination) at Porthtowan Airfield is approximately 0.5° W, per the World Magnetic Model. Variation changes slowly over time — always use the current value charted for navigation.
What airports are near Porthtowan Airfield?
The nearest airport to Porthtowan Airfield is Perranporth Airfield (EGTP), about 3.3 nm to the ne, followed by Truro Aerodrome and Tempest Airstrip.
Is the information on this page suitable for flight planning?
No. Porthtowan Airfield data here is for reference and training only — not for navigation. Always consult official sources and current charts before any flight.