Weather for every barangay.

Free rain and heat outlooks for local governments, estimated for each barangay from open data.

Reading the next 24 hours of forecast…

Taller means wetter.

Each province rises with the rain expected over the next 24 hours, from the same global models forecasters use. Hover a province to read its numbers.

0 mm to 25+ mm in 24 h

Colour is how hot it feels.

The top of each prism shows the heat index, from temperature and humidity, in PAGASA’s bands. It assumes shade: direct sun feels hotter.

  • Not hazardous below 27 °C
  • Caution 27 to 32 °C
  • Extreme caution 33 to 41 °C
  • Danger 42 to 51 °C
  • Extreme danger 52 °C and above

Now zoom to Laoag City.

79 barangays, each raised by its own ground elevation. Rain and heat come from a grid about 25 km wide, so neighbouring barangays share the weather and differ by terrain. That makes it an estimate, and we label it one.

Low ground, 4 m High ground, 74 m

Next: where the water goes.

Phase 3 adds Project NOAH flood and landslide hazard maps and evacuation routes. The water level you see here is an illustration, not a forecast.

What Panawen is, and what it is not.

  • An estimate of rain and heat for your area, built from several weather models.
  • Free to use, from open data, with every source named below.
  • Clear about what it does not know, on the page where you read the number.
one forecast cell, 25 kmLaoag City, 79 barangays
One forecast cell, about 25 km across. Every barangay inside it gets the same rain and heat number; only terrain tells them apart.
Not a measurement.
No free source gives true barangay rainfall. The best available is about 10 km from satellites and 9 to 25 km from models; differences between barangays come from interpolation and terrain.
Not a nowcast.
Satellite rain arrives about four hours late. A real nowcast needs PAGASA radar, which is not public.
Not an official warning.
Follow PAGASA and your MDRRMO for signals and advisories.
Heat index assumes shade.
In direct sun it can feel up to 15 °F hotter than shown.

Every number has a source.

A decision tool should show its inputs. This is what feeds the map, what each source can and cannot resolve, and what is still to come.

Data sources used by Panawen
SourceGivesResolutionLicenceStatus
Open-Meteo (ECMWF IFS, ICON, GFS)Rain, temperature and humidity forecast13 to 25 km, hourlyCC BY 4.0; free tier is non-commercialLive
philippines-json-maps (PSGC 3Q 2026)Province and barangay boundariesSimplified, indicativeMIT scripts, CC BY-IGO dataLive
NASA GPM IMERGSatellite rain from the last hoursAbout 10 km, 30 min, 4 h lagFree; Earthdata sign-inPlanned
PAGASA CAP alertsCyclone signals and warningsPer alertCC BY 4.0Planned
Project NOAHFlood, landslide and storm-surge hazard mapsAround 10 m; age unconfirmedODbL (attribution, share-alike)Planned
Copernicus GLO-30Ground elevation30 mFree with attributionPlanned

Check the weather for your barangay.

Panawen is free for everyone. Open the dashboard, find your barangay, and see its rain and heat outlook. No account, and no sign-up from your LGU needed. Local governments are welcome as partners, never a requirement: if your MDRRMO wants to work with us, write to us.