San Juan
📍 San Juan · Nearest city: Juan de Herrera (10 km)
42 XC score / 100 · takeoff at 990 m · 📍 View on map
Coordinates and external links
18.95970, -71.24920Forecast next days
Updated: 2026-04-21 01:54 UTC · Source: Open-Meteo · Thermal window 10:00–18:00 local time
Very favorable day for XC, cloud base ~766 m, wind 9 km/h.
base ~766m · wind 9 km/hVery favorable day for XC, cloud base ~1044 m, wind 13 km/h.
base ~1044m · wind 13 km/h · precip 0.5mmVery favorable day for XC, cloud base ~1215 m, wind 14 km/h.
base ~1215m · wind 14 km/hComposite flyability score (CAPE + LI + wind + precip + low clouds). Cross-check with local pilots before flying.
🌬 Daily wind (next days)
Daily summary (10m wind). Full hour × altitude chart is being added progressively.
Takeoff orientations
Green = good orientation · Yellow = possible · Gray = not suitable
Why this site has thermal potential
| Factor | Value | Interpretation |
|---|---|---|
| Hotspot density (5 km) | 2 | Low |
| Avg thermal probability | 0.91 | Based on thousands of aggregated IGC flights |
| Solar orientation | 0.20 | Slope faces south in northern hemisphere |
| Own flight history | 0.00 | Thermals detected in platform IGC tracks |
Real takeoff terrain
| SRTM elevation | 982 m AMSL |
| Average slope | 11.5° |
| Slope aspect | 12° (N) |
| Hemisphere | north — Orientation unfavorable for direct solar thermals |
Derived from SRTM 30m (NASA).
Nearby sites
Las Aguitas (36) · Vallejuelo (29) · Galvan (35) · Constanza (5) · Jarabacoa (36) · Jarabacoa (14)