Air quality comparison · Uganda, 238 km apart
Kampala vs Mbarara Air quality index (AQI) today
Mbarara has cleaner air than Kampala right now: AQI 57 (Moderate) against 86 (Moderate).
Both sit in the same EPA band, so the health advice is the same for each today. Over the past 7 days, on modeled daily averages, Mbarara averaged AQI 82 against 87, and it was the cleaner of the two on 4 of those days. Kampala has lost more forest since 2001. Mbarara has more tree cover.
Updated . Lower is better on the US EPA index: 0–50 is Good, above 300 is Hazardous. Measured by Airleaf.
Kampala86Mbarara57
Head to head
Kampala vs Mbarara at a glance
Mbarara is ahead on 6 of 6 measures, and Kampala on 0. The better figure in each row is marked.
| Kampala | Mbarara | |
|---|---|---|
| Air quality nowUS AQI. Lower is better. | 86 | 57 (better) |
| PM2.5Fine particles, µg/m³. | 27.7 | 12.4 (better) |
| Past week's averageUS AQI, 7 days. | 87 | 82 (better) |
| Forest lost since 2001Within 10 km of the center. | 869 ha | 799 ha (better) |
| Tree coverWithin 2 km of the center. | 18.6% | 26.2% (better) |
| Trees still neededTo reach a healthy canopy. | 35.8K | 11.9K (better) |
Air quality today
What is the air like in Kampala and Mbarara right now?
Mbarara has cleaner air than Kampala right now: AQI 57 (Moderate) against 86 (Moderate). PM2.5 is setting the index in both.
Kampala's PM2.5 is about 1.8× the WHO's 24-hour guideline of 15 µg/m³.
Both readings come from nearby ground stations.
KampalaMbarara
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).
The past week
Which had cleaner air over the past 7 days?
Over the past 7 days, on modeled daily averages, Mbarara averaged AQI 82 against 87, and it was the cleaner of the two on 4 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
- Kampala3Mbarara4
- Average AQI
- Kampala87Mbarara82
- Worst day, AQI
- Kampala94Mbarara111
The daily numbers (7 days)
| Day | Kampala | Mbarara |
|---|---|---|
| Nov 5 | 81 | 56 |
| Nov 6 | 88 | 76 |
| Nov 7 | 86 | 103 |
| Nov 8 | 77 | 111 |
| Nov 9 | 93 | 64 |
| Nov 10 | 94 | 75 |
| Nov 11 | 90 | 92 |
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 Kampala and Mbarara today?
Unusually sensitive people should consider limiting long outdoor exertion. Both are in the same EPA band today (Moderate), so the advice is the same.
Exercise outdoors
Fine for most people; unusually sensitive people should take long or hard exercise easier.
Windows
Fine to open; close them if you are sensitive to pollution.
Masks
Not needed for most people.
Air purifier
Worth running if you are sensitive.
Against everywhere else
How do Kampala and Mbarara compare with the rest of the world?
Right now Kampala's air is cleaner than 27% of the 5,420 places Airleaf tracks, and Mbarara's is cleaner than 51%. Within Uganda, that is 17% and 94% of its 19 measured places.
Cleaner air than…
- Kampala
- Beats 27%
- Mbarara
- Beats 51%
More tree cover than…
- Kampala
- Beats 43%
- Mbarara
- Beats 60%
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.
Deforestation · 2001–2025
Which has lost more forest, Kampala or Mbarara?
Kampala has lost more: about 869 ha of forest within 10 km of its center from 2001 to 2025, against 799 ha around Mbarara. 837 ha of that was cleared for good, for farms, mines or towns.
Measured within 10 km of each center, from the yearly satellite maps of forest loss: a wider circle than the one for tree cover, because forest is usually lost at a city's edges.
Worst year: 2011, with 140 ha lost.
Worst year: 2005, with 72 ha lost.
| Kampala | Mbarara | |
|---|---|---|
| Forest lost since 2001Cleared, burned or logged. | 869 ha | 799 ha (better) |
| Share of its forestOf what it had in 2000. | 19% (better) | 20% |
| Cleared for goodTurned into farms, mines or towns. | 837 ha | 568 ha (better) |
| Recent trend2021–2025 against the five years before. | Slowing down | Too little to call |
| Main known cause | Towns and roads (75%) | Farms, pasture and plantations (64%) |
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.
Kampala
2017: satellite photo from August 2017 of a 5 × 5 km area about 7 km west of the city center.
Mbarara
2017: satellite photo from September 2017 of a 5 × 5 km area about 7 km southwest of the city center.
Trees
Which has more trees, Kampala or Mbarara?
Mbarara has more tree cover: 26.2% of the land within 2 km of its center against 18.6% around Kampala, or about 82,310 trees against 58,434.
The dark mark is each place's canopy target: 30% of the land, raised where air quality is poor.
| Kampala | Mbarara | |
|---|---|---|
| Trees standingEstimated from the canopy area. | 58.4K | 82.3K (better) |
| Trees still neededTo reach the target. Fewer is better. | 35.8K | 11.9K (better) |
| CO₂ absorbed each yearBy the trees already standing. | 1.3M kg | 1.8M 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
Kampala vs Mbarara: your questions answered
Is Mbarara cleaner than Kampala?
On air quality, yes, right now: Mbarara reads AQI 57 against 86, a gap of 29 points on the US EPA index. This is a live reading rather than an annual average, so it can reverse within a day. Over the past 7 days, on modeled daily averages, Mbarara averaged AQI 82 against 87, and it was the cleaner of the two on 4 of those days.
Is it safe to exercise outdoors in Kampala and Mbarara today?
The advice is the same for both today. Unusually sensitive people should consider limiting long outdoor exertion. Kampala reads AQI 86 and Mbarara reads AQI 57.
Which has lost more forest, Kampala or Mbarara?
Kampala has lost more: about 869 ha of forest within 10 km of its center from 2001 to 2025, against 799 ha around Mbarara. 837 ha of that was cleared for good, for farms, mines or towns.
Which has more trees, Kampala or Mbarara?
Mbarara has more tree cover: 26.2% of the land within 2 km of its center against 18.6% around Kampala, or about 82,310 trees against 58,434. Both figures describe the same-sized circle of ground around each center, not the whole municipality.
How many more trees do Kampala and Mbarara need?
Kampala needs about 35,814 more to reach its canopy target of 30%, and Mbarara about 11,938 to reach 30%. The target starts at 30% of the land and rises where air quality is poor.
Are Kampala and Mbarara 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 come from nearby ground stations. Nothing is adjusted for population, city limits or climate.
How often does the Kampala vs Mbarara 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 7, 2026 and Sep 8, 2026), and the forest figures are published yearly.
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