What input does NOAA Tides and Water Levels — Official US Observations take?

The schema marks all 6 inputs optional. Check the field descriptions and credential requirements before running.

Does NOAA Tides and Water Levels — Official US Observations need an API key or login?

No input field is marked secret. Check the Actor documentation for any source access requirements.

How do I run NOAA Tides and Water Levels — Official US Observations?

It runs on Apify. Start it from its listing with the inputs above, or call the Apify API with the Actor's ID. Results land in a dataset you can export as JSON, CSV or Excel, or read through the Apify API into your own pipeline.

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NOAA Tides and Water Levels — Official US Observations

Tide and water level readings from NOAA stations as flat rows — time, value, sigma and quality flags. Free public API, no key.

NOAA Tides and Water Levels — Official US Observations returns 5 documented output fields, including time, value, sigma, flags and quality. Every field carries a declared type, a written description and an example value. 3 runs are recorded on Apify.

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5: Output fields
6: Inputs
3: Runs
2026-10-23: Last run

01 — output

What it returns

Every field the extractor writes to its dataset, with its type, a written description and an example value.

Field	Type	What it holds	Example
time	string	Time this row refers to.	2026-10-18T07:30:00Z
value	number	The measured value for this row. Units are in the README and sometimes in a sibling field.	42.5
sigma	number	Standard deviation of the height prediction, in the source's units. A measure of how uncertain the tide forecast is, not of the tide itself.	example-value
flags	string	Quality or status flags the source sets on the observation, in its own coding.	example-value
quality	string	Quality flag from the source. For a postcode this is 1 for a real one and lower for an approximate or terminated one.	example-value

02 — sample

One record

Assembled from the example values declared on the schema above, not invented at render time.

{
  "time": "2026-10-18T07:30:00Z",
  "value": 42.5,
  "sigma": "example-value",
  "flags": "example-value",
  "quality": "example-value"
}

03 — input

What you give it

Input	Type	Description
station	stringoptional	NOAA station number, e.g. 8454000 (Providence), 9414290 (San Francisco).
product	stringoptional	water_level, tide predictions (predictions), air_temperature, water_temperature, wind.
date	stringoptional	'latest', 'today', or a range like 20261001-20261007.
units	stringoptional	metric or english.
maxItems	integeroptional	Stop after this many rows.
maxPages	integeroptional	Stop after this many pages.

04 — run

Run NOAA Tides and Water Levels on your own input

It runs in the cloud on Apify. Check its current price and billing events on the Apify page before you run it.

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05 — questions

Asked before running it

5 of 5 fields described

What does NOAA Tides and Water Levels — Official US Observations return?: It returns 5 documented output fields: time, value, sigma, flags and quality. Each field declares its type, a description of what it holds, and an example value.
What input does NOAA Tides and Water Levels — Official US Observations take?: The schema marks all 6 inputs optional. Check the field descriptions and credential requirements before running.
Does NOAA Tides and Water Levels — Official US Observations need an API key or login?: No input field is marked secret. Check the Actor documentation for any source access requirements.
How do I run NOAA Tides and Water Levels — Official US Observations?: It runs on Apify. Start it from its listing with the inputs above, or call the Apify API with the Actor's ID. Results land in a dataset you can export as JSON, CSV or Excel, or read through the Apify API into your own pipeline.