The Gloom Report · HEAVY GRAY
HEAVY GRAY MORNING LIKELY
This far out the National Weather Service forecasts in 6-hour blocks, so there is no burn-off hour to give yet — only how gray the morning looks.
Coast, 6–11am average
98% cloud
socked in
Burns off
—
6-hr blocks
So what do you do with today
TOO EARLY TO CALL THE MORNING
The National Weather Service is forecasting this day in 6-hour blocks, which is not fine enough to say when — or whether — the layer lifts. Check back inside two days.
WHERE THE LAYER IS — TODAY
Source: NOAA / National Weather Service · Updated 4:33 AM
6–11am avg · cloud cover
BEACH
98%
MESA
98%
INLAND
99%
Tap any spot for detail.
MORNING AVERAGE ONLY
This far out the National Weather Service forecasts sky cover in 6-hour blocks, not hours — so this shows the 6–11am average and no burn-off time. Today and tomorrow have the hour-by-hour view.
% of sky covered by cloud, hour by hour, from NOAA gridpoint forecasts.
THE NEXT SEVEN MORNINGS
Pick a day to load it on the mapIT'S NOT COAST VS INLAND. IT'S FOUR BANDS.
The layer comes off the water and peels back east through the morning. Which band an address sits in decides how many gray mornings a year it gets — and it's why two neighborhoods four miles apart can have genuinely different weather.
Cloud is the 6–11am average from NOAA gridpoint forecasts. A dash under burn-off means there was no marine layer to burn off that morning — not that it cleared at dawn.
Right now, same afternoon
71°
Beaches · avg of 10
-4° apart
67°
Inland valleys · avg of 5
WHAT IS THE MARINE LAYER?
A low deck of ocean-cooled cloud that sits over the coast overnight and into the morning. It isn't fog you can smell or rain that falls — it's flat gray sky, a few hundred feet up, and it makes 68° feel like a different city than 68° in the sun.
It's thickest in May and June, which is why locals say May Gray and June Gloom. Some mornings it burns back to the water by 9am. Some days it never lifts at all.
The deck hugs the coastline and thins as it moves east, so ten miles inland is very often a completely different day — clear, and 15–20 degrees warmer, while the beach is still gray. That gap is the single most useful thing to understand about living here, and it's what the map above is showing you hour by hour.
HOW TO READ THE NUMBER
Every figure on this page is percent of sky covered by cloud, taken from NOAA's hourly gridpoint forecast for that exact location. Low is sunny.
0–15%
Clear
Blue from wake-up. No layer at all.
16–35%
Mostly clear
High cloud, still bright. Not the marine layer.
36–60%
Patchy gray
Thin deck, usually gone before mid-morning.
61–85%
Gray
The real thing. Overcast until it burns back.
86–100%
Socked in
Thick enough that it doesn't lift. The beach is a lost cause; drive east.
Burn-off is the hour the cloud thins below 35% and stays there. It's only reported when there was a layer at dawn to begin with — an inland valley that was clear all morning gets a dash, not a time.
San Diego conditions, right now