Forecast
An island-by-island read of the next days, kept separate from current observations.
Forecast setup
Fair
+1 h
Forecast dominant pollutant: O₃
Bias-corrected CAMS forecast
Bias-corrected CAMS forecast · last update 23 hours ago
How it's calculated
We apply a simple MOS bias correction based on the last week of observations to reduce systematic drift. It is still a planning aid, not a minute-by-minute local guarantee.
Next days
Daily outlook
Summary of the days with coverage in the latest CAMS update. Each card marks the day's worst forecast AQI and the island where it appears.
Today
Oct 31
Moderate
- Peak
- Island to watch
- Dominant
- PM10
1 forecast hour
Tomorrow
Nov 1
Poor
What is likely next
The shortest useful read before comparing specific islands, days or hours.
Most delicate island
+2 hEl Hierro
Poor
El Hierro stands out as the most delicate signal in the next stretch.
Trend
+98 hEl Hierro
Fair
El Hierro looks set to move from moderate to fair during the forecast stretch.
Next key window
+28 hWatch window
Poor
Bias-corrected forecast
Where to look first
Compare current conditions with three simple forecast horizons. The peak column points to the worst available hour in the run, so you do not have to scan the whole table.
This table can be scrolled horizontally with the keyboard or touch gestures.
1 station
- +6 h
- FairO₃
- +12 h
- FairO₃
- +24 h
Weather
Coming days
How it's calculated
Each row sums up a whole day at the island's municipal reference. AEMET splits the first days into periods and publishes only the full day for the later ones.
Showers
25°C21°C
- Chance of rain
- 65%
- Wind
- South · 5 km/h
Rain
26°C
Sun
Next five days
How it's calculated
Each value is the forecast daily maximum. AEMET does not provide a peak time in this product.
With All Canary Islands, each day shows the highest value across island references, which may come from different islands.
- 5
UVI 5
Highest in Tenerife
Moderate
Seek shade around midday
- 5
How to read this forecast
Daily and hourly forecasts are shown separately from current observations. On station pages, the future series is rendered with a dashed line so present conditions and prediction never collapse into the same signal; on the main map you can scrub from -24 h to +72 h.
For the Canary Islands, this phase uses CAMS global guidance as the operational fallback because the current official documentation for the regional product places its southern boundary at 30°N, which excludes the archipelago.
The island table shows the average across available stations on each island for PM2.5, PM10, NO₂ and O₃. When enough recent history is available, we prioritise the locally corrected version and keep raw CAMS guidance for auditability.
This table can be scrolled horizontally with the keyboard or touch gestures.
Explore hour by hour
Choose an island and a range. Each cell summarises one forecast hour: the number identifies the AQI level and the abbreviation shows the dominant pollutant. Tap or select a cell to read its full detail.
Hourly heatmap legend
- Good
- Fair
- Moderate
- Poor
- Very poor
- Extremely poor
Bias-corrected forecast
El Hierro
Sat, Oct 31
Now
Sun, Nov 1
View pollutant data
Island overview - El Hierro
Average forecast values in µg/m³ for the next +6 h, +12 h and +24 h.
When a cell shows “—”, CAMS did not provide usable coverage for that pollutant/horizon combination in the latest available run.
PM2.5 · µg/m³
- +6 h
- 10.6
- +12 h
- 3.5
- +24 h
- 3.8
PM10 · µg/m³
- +6 h
- 23
- +12 h
- 6.3
- +24 h
- 9
NO₂ · µg/m³
- +6 h
- 0.1
- +12 h
- 0.1
- +24 h
- 0.2
O₃ · µg/m³
- +6 h
- 64.8
- +12 h
- 68.3
- +24 h
- 70