Philippines · Department of Education
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Real-time heat index for every schools division, colored with DepEd’s 4H framework under Executive Order No. 130.
Schools by heat index
Metro Manila
About
A planning picture of the heat index for every Department of Education region and schools division. It is not an official class-suspension order from DepEd or PAGASA.
“Right now” is the latest weather-model analysis, refreshed about every 15 minutes from station reports, satellites, and radar. It is not a thermometer sitting in a classroom. Schools decide from indoor temperature and humidity at 8 a.m., noon, and 2 p.m. This site does not have those indoor readings.
Air temperature, humidity, wind, sky, and rain come from the Open-Meteo forecast, in Asia/Manila time. The page requests a fresh analysis about every 15 minutes. School-day peak is the highest heat index from 6 a.m. through 5 p.m.
The heat index is calculated here with the U.S. National Weather Service Rothfusz regression. Temperature is converted to Fahrenheit. Below a simple Steadman result of 80°F, that simpler result is used. At or above 80°F, the full regression is used, including the adjustments for very dry and very humid air, then converted back to Celsius. The color follows the rounded degree on the map: below 27° Hayo, 27–32° Hinay, 33–41° Hinga, and 42° and above Hinto.
The colors follow DepEd Memorandum No. 064, s. 2026. Executive Order No. 130, s. 2026, replaced blanket suspensions with three routes: the national hazard threshold, the local chief executive, and the school head for conditions at that school. If the heat is unbearable, a school may suspend classes before 42°, based on local conditions and in coordination with the schools division superintendent.
Black dots are PAGASA synoptic and automatic weather stations. Their thermometers and humidity sensors measure the air at that site. PAGASA computes the heat index from those readings and publishes it on its heat-index page, usually within the hour. The site reads that public page because a browser cannot fetch it directly. A station that has not reported for more than six hours is shown in gray. These dots are instrument readings for reference. They are separate from the division colors.
There is no weather database on this site. School counts for 229 divisions come from the Department of Education public report of 25 October 2025, and the boundaries are PSGC maps by James Faeldon, MIT license. Both are files published with the page. Weather and PAGASA readings are requested when you open the site. Firebase Hosting publishes the page, and Firebase Analytics records visits. Your position is read only when you press My location.
Web developer: Jecson Oafallas