Observed arrival · 2026-11-01
Almanac: field data for a latitude and longitude
Almanac provides seven free JSON APIs for coordinate-based air, marine, tide, storm, swimming-water, coastal-place, and time-zone data.
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†Ads
✦Pretty
●Pro
◎Niche
◉Human
⚑Risk
ƒJS
- For
- App developers working with place-based data
- Worth noticing
- Responses preserve each agency’s own index, datum, units, wording, and attribution rather than normalizing them.
Field notes
The page links each service to named upstream sources and says answers include source attribution, with the source’s terms applying to downstream use. Its operating notes are unusually explicit: responses are cached and unsupported, higher-volume users should make contact, and agency publications remain the record for accuracy. Several services describe a fallback when direct station data is absent, including CAMS for air quality and TICON-4 for tide predictions.
Observed signals
Read the marks
Editorial observations of this landing page, not a rating.
○OpenPublic substance visible
✦PrettyNotable craft visible
●ProPolished or operationally mature
◎NicheUnusually specific use
◉HumanPersonal, local, civic, or handmade
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