KMRY — Monterey Regional Airport

fog forecast & climatology · Monterey city page · full 10-year analysis →
No fog signal in NWS guidance for the next 48 hours. September typically brings about 23 hours of dense fog here.forecast cycle 2026-09-04T13:00:00Z · page rebuilt daily · live layers below update hourly

Fog hours per year
145 h below CAT I minima (2016–2026 average)
Fog season
September and October
Typical fog event
~1 h once it forms (middle half 1–2 h, n=867)
Data through
2026-08-15 · machine-readable data.json

When this airport fogs in

In a typical year Monterey Regional Airport spends 145 hours below CAT I approach minima (visibility under ~½ mile or ceiling under 200 ft), concentrated in September and October. The strip above shows the hour-by-hour pattern for the current month from ten years of weather observations.

Fog season

January: ~7 hJanFebruary: ~3 hFebMarch: ~5 hMarApril: ~8 hAprMay: ~7 hMayJune: ~10 hJunJuly: ~20 hJulAugust: ~23 hAugSeptember: ~23 hSepOctober: ~23 hOctNovember: ~13 hNovDecember: ~7 hDec
Fog season runs April through January, peaking in August; fog is mostly a midnight–7 AM phenomenon; typically thinning out by 9 AM; a typical event lasts about 1 hour once it forms local time · 10-yr average

Runway infrastructure

endapproach lightsbest approachlengthRVR
10L——3,503 ft—
28R——3,503 ft—
10RMALSRCAT I7,175 ftRVR
28L——7,175 ftRVR

From FAA NASR / curated AIP Canada research. Approach-light class and minima tier drive how low an approach can be flown — details in the chase board.

For flight operations

EFVS crews: the CHASE board ranks airports by live fog status, approach lighting, go-around height and flight time from your base. Forecast probabilities publish here per-airport once the calibrated model beats climatology on live verification — receipts on the scorecard. Methodology.

Sources: NOAA/NWS National Blend of Models guidance · METAR observations 2016–2026 (Iowa Environmental Mesonet) · FAA NASR. Machine access: data.json · llms.txt. Not for operational use.