Bangalore Heat Simulator

Adjust the sliders to explore how land-use changes affect Bangalore's temperature and air quality. The model applies published coefficients against the April 2026 baseline.

Live in Bangalore26.3°CPartly cloudyWind 3.4 km/h from SEHumidity 55%as of 23:30 IST · Open-Meteo · 15 min cache

Illustrative, not predictive. This model uses linear regression coefficients from peer-reviewed studies. It cannot capture monsoon effects, advection, aerosol forcing, or spatial heterogeneity. See full caveats →

Month (captures monsoon)

Source: IMD climatology Bangalore 1991–2020

Wind direction (advection)

Source: State PCB wind-rose + zone land-use (Bangalore)

Aerosol load (AOD)

0.40 — Medium
0.11.0
LowMedHigh

Source: Babu et al., ARFI 2013 — Indian urban AOD-forcing. Day: −0.8°C / +0.3 AOD · Night: +0.5°C / +0.3 AOD · PM2.5: +30 µg/m³ / +0.3 AOD

Zone (spatial heterogeneity)

Selecting a zone resets sliders to that zone's baseline.

Time of day (aerosol forcing)

Switches aerosol forcing sign: day = cooling (solar dimming), night = warming (IR trapping).

Sentinel-2 · Q1 2024 EOX cloudless composite (latest free)
Δ°C · spatial
−50+5+8
Spatial ΔT · 15k cells · 400 m
Land-use + zone only. City-wide monsoon & aerosol stay in the readouts.

Historical Presets

Slider mode

Tree Canopy
6%
0%80%
Built-up Area
93%
0%100%
Water Bodies
4.5 km²
0 km²30 km²
Vehicles Index
100
0150
Population
14.5 M
0.5 M20 M
Modelled Temperature
34.0°C
+4.2°C[+4.20 … +4.20]°Cvs 29.8°C baseline

Where this delta came from:

  • Season/monsoon
    +3.00°C
  • Zone offset
    +1.20°C
Modelled PM2.5
48 µg/m³
0.0 µg/m³[0.0 … 0.0] µg/m³vs 48 µg/m³ baseline

WHO guideline: 15 µg/m³ (annual mean)

Brackets show the low–high band from the coefficient ranges in peer-reviewed sources: canopy 0.06–0.12°C/pp · built-up 0.05–0.1°C/pp · water 0.3–0.8°C/km² · vehicles 3–5 µg/m³ per +10 pp.

Baseline (April 2026): Canopy 6% · Built-up 93% · Water 4.5 km² · Vehicles index 100 · Pop 14.5 M · Temp 29.8°C · PM2.5 48 µg/m³.