Ohsayama Flight Area (Mt.Osa)
📍 Okayama · Nearest city: Niimi (13 km)
16 XC score / 100 · takeoff at 880 m · 📍 View on map
Coordinates and external links
35.08330, 133.54300Forecast next days
Updated: 2026-04-21 02:29 UTC · Source: Open-Meteo · Thermal window 10:00–18:00 local time
Marginal conditions, cloud base ~2369 m, wind 13 km/h.
base ~2369m · wind 13 km/hMarginal conditions, cloud base ~1997 m, wind 6 km/h.
base ~1997m · wind 6 km/hNot recommended for flying, cloud base ~91 m, wind 12 km/h, precipitation 33.8 mm.
base ~91m · wind 12 km/h · precip 33.8mmComposite 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) | 0 | Low |
| Avg thermal probability | 0.00 | Based on thousands of aggregated IGC flights |
| Solar orientation | 0.50 | Slope faces south in northern hemisphere |
| Own flight history | 0.00 | Thermals detected in platform IGC tracks |
Takeoff description
different TO's available for HG and PG. PG: large for main wind direction.
Nearby sites
Ojigatake/ Ojigadake (14) · nio (10) · Takayama East (11) · Misunomaru (30) · Iwayasan Flight Area (9) · hiketa (3)