About Window

Last updated 17 October 2026

Window tells you what Singapore's weather means for your home: when a thunderstorm is closing in and roughly when it will arrive, whether it will rain in the next two hours, the haze in your region, heat and UV, and what to do about the laundry, the windows and going out.

Who runs it

Window is made by Zentia Home Pte. Ltd., a Singapore company that designs and installs smart home systems (zentiahome.com). It is free to use, with no sign-up needed and no advertising.

Where the data comes from

Live data from the National Environment Agency and PUB via data.gov.sg (lightning, rain radar and gauges, forecasts, PSI and PM2.5, UV, heat stress, flood alerts), hourly forecasts from MET Norway, and for where haze comes from, NOAA's wind and aerosol models with NASA's satellite fire data. Window reads them every 2 minutes. Full details are on the data credits page.

Not an official warning service

Window explains the data; it is not affiliated with or endorsed by NEA or PUB. For official warnings, follow NEA and PUB. Official PUB flood warnings appear in Window in PUB's own words.

Alerts

Get a heads-up before storms, haze getting worse and PUB flood warnings for the places you care about on Telegram with @WindowSingaporeBot. Nothing for maybes, and never more than a few a day.

Contact

Questions or feedback: hello@zentiahome.com. Personal data: dpo@zentiahome.com. See also the privacy policy and terms.

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