Can the kids play outside today?
I am a dad of a 20-month-old in Jakarta and I work in AI. Before taking our little one out I check four things, so I put them on one page. Every number below names its source and time.
Your location stays in this browser, rounded to about 1 km. The forecast is fetched from your browser, and nothing is sent to this site.
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Coolest parks in Jakarta
Ground surface temperature around 10 am, median of the 2025 dry season (Landsat). Not today, and not air temperature: it shows which areas bake and which stay cool.
Vegetation from Sentinel-2 NDVI, median of the 2025 dry season. Water and roofs are left blank.
Parks show as dots, and as outlines from zoom 13. Darker green parks have more dense vegetation; grey ones are too small to score. Tap a park for its scores.
Every park, RPTRA and city forest in Jakarta mapped in OpenStreetMap, scored from dry-season satellite imagery. Green is the share of the park covered by dense vegetation (Sentinel-2). Cooler is how much colder its surface was than the 300 m around it at about 10 am (Landsat), measured only for parks of 1 ha or more. Surface temperature is not air temperature, but shade and grass show up clearly in it.
Imagery: Sentinel-2 and Landsat 8/9 via Microsoft Planetary Computer; parks: OpenStreetMap, 2025-06-01 – 2025-09-30.
How the colours are decided
Each hour takes the colour of its worst factor. Yellow from the first number, red from the second.
- Air (PM2.5): 35.5 µg/m³ / 55.5 µg/m³. US EPA AQI bands for sensitive groups (children count), applied to hourly values.
- UV index: 6 / 8. WHO UV index: 6–7 high, 8+ very high.
- Feels like: 32 °C / 41 °C. US NWS heat index: 32–40 °C extreme caution, 41 °C+ danger.
- Chance of rain: 50 % / 80 %. Draft thresholds.
An indicator, not medical advice. Follow your doctor for children with asthma or other conditions.