almanacJSON APIs that answer for a latitude and longitude. No ads. Privacy respected.
airqAir quality
Air quality from the best source for the place: a monitoring station where there is one, the CAMS model where there isn’t. Each agency’s own index, never converted to another.
AirNow · Environment and Climate Change Canada · UK DEFRA · OpenAQ · Open-Meteo / CAMS
curl https://airq.almanac.observer/48.43,-123.37
seaqMarine measurements
Live readings from the buoys and stations nearest the place: waves, wind, water and air temperature, pressure, and BuoyCam views. Measured, never modelled.
NOAA National Data Buoy Center · Environment and Climate Change Canada
curl https://seaq.almanac.observer/48.43,-123.37
tideqTide predictions
Every high and low at the nearest tide station, and the curve every 15 minutes. The agency’s own prediction in its own datum, or computed from TICON-4 where no agency has a station.
NOAA Tides and Currents · Canadian Hydrographic Service · TICON-4
curl https://tideq.almanac.observer/48.43,-123.37
stormqTropical cyclones
Every active hurricane, typhoon and cyclone: where it is, its track and forecast, its cone, and what changed between advisories. The warning centre’s own advisory, in its own units and words.
NOAA National Hurricane Center · Central Pacific Hurricane Center · Joint Typhoon Warning Center
curl https://stormq.almanac.observer/storms
swimqSwimming water quality
The latest result at each monitored beach near the place, in the authority’s own words, units and statistic. Old results are left out, and each beach says why.
Metro Vancouver · City of Hamilton · NSW Beachwatch
curl https://swimq.almanac.observer/49.28,-123.14
placeqCoastal places
Every named beach, bay, point, island, lighthouse and coastal town near tidal water and a tide station, as one file an app searches on the device. Rebuilt monthly.
OpenStreetMap through Overture Maps · Wikidata
curl https://placeq.almanac.observer/coastal
tzqTime zones
The IANA time zone at any point on land or sea, like America/Vancouver, at about 20 m. The same answers as the Tides app.
timezone-boundary-builder
curl https://tzq.almanac.observer/49.28,-123.12
Free, cached, unsupported and not built for volume. No key and no sign-up: send a
User-Agent that names your app and how to reach you, and
get in touch before sending more than a few thousand requests
a day.
As is: no warranty, and no promise of accuracy or availability. Not for navigation, safety or medical decisions; the agency’s own publication is the record. Each answer names its source and its attribution, and the source’s terms apply to what you do with it.
Service status: each service and each of its upstreams, checked every 10 minutes.
Design: one palette for every service’s page and every app that draws their answers.
Algorithms: test data for the calculations an app does on the device, like sunrise and magnetic declination. A separate project.
© 2026 Gerry Shaw