Rivas Alex's Launch
📍 San Jose · Nearest city: San Isidro (9 km)
61 XC score / 100 · takeoff at 1617 m · 📍 View on map
Coordinates and external links
9.45381, -83.68110Forecast next days
Updated: 2026-05-02 16:07 UTC · Source: Open-Meteo · Thermal window 10:00–18:00 local time
Not recommended for flying, cloud base ~177 m, wind 8 km/h, precipitation 8.6 mm.
base ~177m · wind 8 km/h · precip 8.6mmNot recommended for flying, cloud base ~97 m, wind 6 km/h, precipitation 14.5 mm, beware of thunderstorms (high CAPE)!.
base ~97m · wind 6 km/h · precip 14.5mmComposite 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
🗓️ Best season to fly (2024 climatology)
Monthly climate score: historical avg of temp, wind, rain and cloud cover. Green = optimal month.
⭐ Best month: Jan (83/100, 22°C, 55mm lluvia) · Worst month: Nov (38/100, 1083mm lluvia)
Why this site has thermal potential
| Factor | Value | Interpretation |
|---|---|---|
| Hotspot density (5 km) | 11 | High |
| Avg thermal probability | 0.84 | Based on thousands of aggregated IGC flights |
| Solar orientation | 0.39 | Slope faces south in northern hemisphere |
| Own flight history | 0.00 | Thermals detected in platform IGC tracks |
Real takeoff terrain
| SRTM elevation | 1697 m AMSL |
| Average slope | 18.9° |
| Slope aspect | 2° (N) |
| Hemisphere | north — Orientation unfavorable for direct solar thermals |
Derived from SRTM 30m (NASA).
Takeoff description
Alex's Launch
Nearby sites
Rivas (46) · Zion's launch (37) · Palmital H&F (30) · Cerro Pelón (47) · Bahía Ballena (58) · Dominical - Escaleras - C.R. (55)