Air quality comparison · Djibouti, 67 km apart
Ali Sabih vs Djibouti Air quality index (AQI) today
Djibouti has cleaner air than Ali Sabih right now: AQI 36 (Good) against 38 (Good).
Both sit in the same EPA band, so the health advice is the same for each today. But over the past 6 days, on modeled daily averages, Ali Sabih averaged AQI 51 against 58, and it was the cleaner of the two on 6 of those days. Djibouti has more tree cover.
Updated . Lower is better on the US EPA index: 0–50 is Good, above 300 is Hazardous. Measured by Airleaf.
Ali Sabih38Djibouti36
Head to head
Ali Sabih vs Djibouti at a glance
Djibouti is ahead on 4 of 5 measures, and Ali Sabih on 1. The better figure in each row is marked.
| Ali Sabih | Djibouti | |
|---|---|---|
| Air quality nowUS AQI. Lower is better. | 38 | 36 (better) |
| PM2.5Fine particles, µg/m³. | 7.9 | 6.1 (better) |
| Past week's averageUS AQI, 6 days. | 51 (better) | 58 |
| Tree coverWithin 2 km of the center. | 0.8% | 2.4% (better) |
| Trees still neededTo reach a healthy canopy. | 91.7K | 56.4K (better) |
Air quality today
What is the air like in Ali Sabih and Djibouti right now?
Djibouti has cleaner air than Ali Sabih right now: AQI 36 (Good) against 38 (Good). PM2.5 is setting the index in both.
Both readings are model estimates, with no ground station close enough to either.
Ali SabihDjibouti
Concentrations at the same moment as the index above, for the pollutants both places report. Lower is better. The dark marks on the PM2.5 and PM10 rows show the WHO's 24-hour guidelines (15 and 45 µg/m³).
Ali Sabih: Model estimate · no ground station nearby. Data: Open-Meteo / CAMS, US EPA index.
Djibouti: Model estimate · no ground station nearby. Data: Open-Meteo / CAMS, US EPA index.
The past week
Which had cleaner air over the past 6 days?
But over the past 6 days, on modeled daily averages, Ali Sabih averaged AQI 51 against 58, and it was the cleaner of the two on 6 of those days. A single reading can catch a city on a bad afternoon; the week says whether it was the weather or the place.
- Cleaner days
- Ali Sabih6Djibouti0
- Average AQI
- Ali Sabih51Djibouti58
- Worst day, AQI
- Ali Sabih60Djibouti67
The daily numbers (6 days)
| Day | Ali Sabih | Djibouti |
|---|---|---|
| Nov 5 | 60 | 67 |
| Nov 6 | 55 | 59 |
| Nov 7 | 56 | 63 |
| Nov 8 | 53 | 54 |
| Nov 9 | 43 | 55 |
| Nov 10 | 38 | 50 |
Daily averages from the CAMS atmospheric model for both places, so the week compares like with like. They can differ from today's reading at the top of the page wherever that comes from a ground station.
What it means today
Is it safe to go outside in Ali Sabih and Djibouti today?
Air quality is satisfactory for everyone. Both are in the same EPA band today (Good), so the advice is the same.
Exercise outdoors
A good day to be active outside.
Windows
Open them to air the house.
Masks
Not needed.
Air purifier
Not needed.
Against everywhere else
How do Ali Sabih and Djibouti compare with the rest of the world?
Right now Ali Sabih's air is cleaner than 72% of the 5,420 places Airleaf tracks, and Djibouti's is cleaner than 74%. Within Djibouti, that is 25% and 50% of its 5 measured places.
Cleaner air than…
- Ali Sabih
- Beats 72%
- Djibouti
- Beats 74%
More tree cover than…
- Ali Sabih
- Beats 2%
- Djibouti
- Beats 5%
Includes model estimates as well as station readings, so it can differ from our most polluted and cleanest air rankings, which use station readings only.
Satellite timelapses
Watch both change, year by year
A clear satellite photo a year of the land around each city. Press play, turn on the forest cleared since the first year, or drag the before and after.
Ali Sabih
2017: satellite photo from September 2017 of a 5 × 5 km area in the city center.
Djibouti
2017: satellite photo from July 2017 of a 5 × 5 km area in the city center.
Trees
Which has more trees, Ali Sabih or Djibouti?
Djibouti has more tree cover: 2.4% of the land within 2 km of its center against 0.8% around Ali Sabih, or about 4,901 trees against 2,513.
The dark mark is each place's canopy target: 30% of the land, raised where air quality is poor.
| Ali Sabih | Djibouti | |
|---|---|---|
| Trees standingEstimated from the canopy area. | 2.5K | 4.9K (better) |
| Trees still neededTo reach the target. Fewer is better. | 91.7K | 56.4K (better) |
| CO₂ absorbed each yearBy the trees already standing. | 55.3K kg | 108K kg (better) |
Tree cover on the satellite image
The same 2 km radius around each center, with the tree cover the satellite found marked on it.
Reading these numbers
How this comparison is made
Air quality index
The US EPA index, computed from current pollutant concentrations: ground stations where a place has them nearby, and the CAMS atmospheric model everywhere else. It moves hour to hour, so it is a snapshot rather than a verdict on either place. The guideline marks are from the WHO's 2021 air quality guidelines.
Trees and forest
Tree cover is the share of ground under canopy within 2 km of each center, read from Sentinel-2 satellite imagery at 10 m detail. It measures that circle, not the whole municipality, which is what makes the two comparable. Forest loss comes from the University of Maryland's Global Forest Change maps.
More on the method on the About Airleaf page.
Frequently asked
Ali Sabih vs Djibouti: your questions answered
Is Djibouti cleaner than Ali Sabih?
On air quality, yes, right now: Djibouti reads AQI 36 against 38, a gap of 2 points on the US EPA index. This is a live reading rather than an annual average, so it can reverse within a day. But over the past 6 days, on modeled daily averages, Ali Sabih averaged AQI 51 against 58, and it was the cleaner of the two on 6 of those days.
Is it safe to exercise outdoors in Ali Sabih and Djibouti today?
The advice is the same for both today. Air quality is satisfactory for everyone. Ali Sabih reads AQI 38 and Djibouti reads AQI 36.
Which has more trees, Ali Sabih or Djibouti?
Djibouti has more tree cover: 2.4% of the land within 2 km of its center against 0.8% around Ali Sabih, or about 4,901 trees against 2,513. Both figures describe the same-sized circle of ground around each center, not the whole municipality.
How many more trees do Ali Sabih and Djibouti need?
Ali Sabih needs about 91,735 more to reach its canopy target of 30%, and Djibouti about 56,360 to reach 30%. The target starts at 30% of the land and rises where air quality is poor.
Are Ali Sabih and Djibouti measured the same way?
The method is the same: the US EPA index for air, and Sentinel-2 satellite imagery at 10 m detail over an identical radius for trees. Both readings are model estimates, with no ground station close enough to either. Nothing is adjusted for population, city limits or climate.
How often does the Ali Sabih vs Djibouti comparison update?
The air readings refresh about once an hour, and each reading's local time is shown at the top of the page. Tree cover comes from the latest clear satellite image of each area (Sep 18, 2026 and Sep 18, 2026), and the forest figures are published yearly.
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