Fog in Iwakuni
daily fog outlook & 2016–2026 climatology
No fog forecast feed exists for this station. dense fog (visibility under a mile) is rare here in August (10-year average).
Measured at Iwakuni Kintaikyo Airport (RJOI). This station has climatology and live observations only.
Measuring station
| station | airport | fog hours/yr | forecast |
|---|---|---|---|
| RJOI | Iwakuni Kintaikyo Airport | 4 h/yr | climatology |
Fog is measured where instruments live — airports. Hours/yr = time below CAT I approach minima (visibility under ~½ mile or ceiling under 200 ft), the aviation definition of seriously dense fog.
When Iwakuni fogs in
Fog here concentrates in March and June — about 4 hours in a typical year at RJOI. Hour-by-hour patterns, live conditions and the forecast strip live on the RJOI station page.
Fog season
Iwakuni has no real fog season — dense fog is rare in every month (under 2 hours even in the peak month).
Machine access: data.json · llms.txt · forecast verification. Not for operational use.