Marine Weather API

OnlineCredit Usage:5 per callLive Data

avg: 988ms|p50: 923ms|p75: 1031ms|p90: 1162ms|p99: 1423ms

Overview

To use Marine Weather, you need an API key. You can get one by creating a free account and visiting your dashboard.

GET Endpoint

URL

https://api.apiverve.com/v1/marineweather

Example

How to call the Marine Weather API in different programming languages.

cURL Request

curl -X GET \
  "https://api.apiverve.com/v1/marineweather?lat=29.48003&lon=-37.62424" \
  -H "X-API-Key: your_api_key_here"

JavaScript (Fetch API)

const response = await fetch('https://api.apiverve.com/v1/marineweather?lat=29.48003&lon=-37.62424', {
  method: 'GET',
  headers: {
    'X-API-Key': 'your_api_key_here',
    'Content-Type': 'application/json'
  }
});

const data = await response.json();
console.log(data);

Python (Requests)

import requests

headers = {
    'X-API-Key': 'your_api_key_here',
    'Content-Type': 'application/json'
}

response = requests.get('https://api.apiverve.com/v1/marineweather?lat=29.48003&lon=-37.62424', headers=headers)

data = response.json()
print(data)

Go (net/http)

package main

import (
    "fmt"
    "io"
    "net/http"

)

func main() {
    req, _ := http.NewRequest("GET", "https://api.apiverve.com/v1/marineweather?lat=29.48003&lon=-37.62424", nil)

    req.Header.Set("X-API-Key", "your_api_key_here")
    req.Header.Set("Content-Type", "application/json")

    client := &http.Client{}
    resp, err := client.Do(req)
    if err != nil {
        panic(err)
    }
    defer resp.Body.Close()

    body, _ := io.ReadAll(resp.Body)
    fmt.Println(string(body))
}

Example Response

{
  "status": "ok",
  "error": null,
  "data": {
    "location": {
      "lat": 29.48003,
      "lon": -37.62424
    },
    "weather": {
      "maxtempc": 22.9,
      "maxtempf": 73.2,
      "mintempc": 21.8,
      "mintempf": 71.2,
      "avgtempc": 22.5,
      "avgtempf": 72.5,
      "maxwindmph": 11.1,
      "maxwindkph": 17.9,
      "totalprecipmm": 3.29,
      "totalprecipin": 0.13,
      "totalsnowcm": 0,
      "avgviskm": 9.9,
      "avgvismiles": 6,
      "moonphase": "Waning Crescent",
      "moonillumination": 16
    }
  }
}

Authentication

The Marine Weather API requires authentication via API key. Include your API key in the request header:

Required Header

X-API-Key: your_api_key_here

Learn more about authentication →

Interactive API Playground

Test the Marine Weather API directly in your browser with live requests and responses.

Try Marine Weather APIView details and test in the API marketplace

Parameters

The following parameters are available for the Marine Weather API:

Get Marine Weather

Parameter	Type	Required	Description	Default	Example
`lat`	number	`required`	The latitude coordinate of the location Range: `-90 - 90`	-	`29.48003`
`lon`	number	`required`	The longitude coordinate of the location Range: `-180 - 180`	-	`-37.62424`

Response

The Marine Weather API returns responses in JSON, XML, YAML, and CSV formats. The JSON response is shown in the Example section above; alternative formats below.

Other Response Formats

XML Response

200 OK

<?xml version="1.0" encoding="UTF-8"?>
<response>
  <status>ok</status>
  <error xsi:nil="true" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"/>
  <data>
    <location>
      <lat>29.48003</lat>
      <lon>-37.62424</lon>
    </location>
    <weather>
      <maxtempc>22.9</maxtempc>
      <maxtempf>73.2</maxtempf>
      <mintempc>21.8</mintempc>
      <mintempf>71.2</mintempf>
      <avgtempc>22.5</avgtempc>
      <avgtempf>72.5</avgtempf>
      <maxwindmph>11.1</maxwindmph>
      <maxwindkph>17.9</maxwindkph>
      <totalprecipmm>3.29</totalprecipmm>
      <totalprecipin>0.13</totalprecipin>
      <totalsnowcm>0</totalsnowcm>
      <avgviskm>9.9</avgviskm>
      <avgvismiles>6</avgvismiles>
      <moonphase>Waning Crescent</moonphase>
      <moonillumination>16</moonillumination>
    </weather>
  </data>
</response>

YAML Response

200 OK

status: ok
error: null
data:
  location:
    lat: 29.48003
    lon: -37.62424
  weather:
    maxtempc: 22.9
    maxtempf: 73.2
    mintempc: 21.8
    mintempf: 71.2
    avgtempc: 22.5
    avgtempf: 72.5
    maxwindmph: 11.1
    maxwindkph: 17.9
    totalprecipmm: 3.29
    totalprecipin: 0.13
    totalsnowcm: 0
    avgviskm: 9.9
    avgvismiles: 6
    moonphase: Waning Crescent
    moonillumination: 16

CSV Response

200 OK

key	value
location	{lat:29.48003,lon:-37.62424}
weather	{maxtempc:22.9,maxtempf:73.2,mintempc:21.8,mintempf:71.2,avgtempc:22.5,avgtempf:72.5,maxwindmph:11.1,maxwindkph:17.9,totalprecipmm:3.29,totalprecipin:0.13,totalsnowcm:0,avgviskm:9.9,avgvismiles:6,moonphase:Waning Crescent,moonillumination:16}

View in Marketplace

Response Structure

All API responses follow a consistent structure with the following fields:

Field	Type	Description	Example
`status`	string	Indicates whether the request was successful ("ok") or failed ("error")	`ok`
`error`	string \| null	Contains error message if status is "error", otherwise null	`null`
`data`	object \| null	Contains the API response data if successful, otherwise null	`{...}`

Learn more about response formats →

Response Data Fields

When the request is successful, the data object contains the following fields:

Response fields marked with Premium are available exclusively on paid plans.View pricing

Field	Type	Sample Value	Description
`location`	object	`{...}`	-
└ `lat`	number	`29.48003`	Latitude coordinate of the marine weather location
└ `lon`	number	`-37.62424`	Longitude coordinate of the marine weather location
`weather`	object	`{...}`	-
└ `maxtempc`	number	`22.9`	Maximum temperature in Celsius for the location
└ `maxtempf`	number	`73.2`	Maximum temperature in Fahrenheit for the location
└ `mintempc`	number	`21.8`	Minimum temperature in Celsius for the location
└ `mintempf`	number	`71.2`	Minimum temperature in Fahrenheit for the location
└ `avgtempc`	number	`22.5`	Average temperature in Celsius for the location
└ `avgtempf`	number	`72.5`	Average temperature in Fahrenheit for the location
└ `maxwindmph`	number	`11.1`	Maximum wind speed in miles per hour
└ `maxwindkph`	number	`17.9`	Maximum wind speed in kilometers per hour
└ `totalprecipmm`	number	`3.29`	Total precipitation amount in millimeters
└ `totalprecipin`	number	`0.13`	Total precipitation amount in inches
└ `totalsnowcm`	number	`0`	Total snow depth in centimeters
└ `avgviskm`Premium	number	`9.9`	Average visibility distance in kilometers
└ `avgvismiles`Premium	number	`6`	Average visibility distance in miles
└ `moonphase`Premium	string	`"Waning Crescent"`	Current moon phase description for the location
└ `moonillumination`Premium	number	`16`	Moon illumination percentage from zero to one hundred

Headers

Only X-API-Key is required. Optional headers include Accept for response format negotiation (JSON, XML, or YAML), User-Agent, and X-Request-ID for request tracing. See all request headers →

GraphQL AccessALPHA

Access Marine Weather through GraphQL to combine it with other API calls in a single request. Query only the marine weather data you need with precise field selection, and orchestrate complex data fetching workflows.

Test Marine Weather in the GraphQL Explorer to confirm availability and experiment with queries.

Credit Cost: Each API called in your GraphQL query consumes its standard credit cost.

GraphQL Endpoint

POST https://api.apiverve.com/v1/graphql

GraphQL Query Example

query {
  marineweather(
    input: {
      lat: 29.48003
      lon: -37.62424
    }
  ) {
    location {
      lat
      lon
    }
    weather {
      maxtempc
      maxtempf
      mintempc
      mintempf
      avgtempc
      avgtempf
      maxwindmph
      maxwindkph
      totalprecipmm
      totalprecipin
      totalsnowcm
      avgviskm
      avgvismiles
      moonphase
      moonillumination
    }
  }
}

Note: Authentication is handled via the x-api-key header in your GraphQL request, not as a query parameter.

Try in GraphQL Explorer GraphQL Documentation

CORS Support

The Marine Weather API accepts cross-origin requests from any origin, so it can be called directly from browser-based applications without a proxy. See CORS support →

Rate Limiting

Marine Weather requests are throttled per minute on the Free plan and unthrottled on paid plans. Exceeding the limit returns 429 Too Many Requests; rate-limit usage is reported in the X-RateLimit-Limit, X-RateLimit-Remaining, and X-RateLimit-Reset response headers. See per-plan limits and best practices →

Error Codes

The Marine Weather API uses standard HTTP status codes — 200 on success, 400 for invalid parameters, 401 for missing or invalid keys, 403 for insufficient credits, 429 for rate-limit exhaustion, and 500/503 for server-side issues. Each error response includes an X-Request-ID header you can quote when contacting support. See full error handling guide →

SDKs for Marine Weather

Official Marine Weather packages on npm, PyPI, NuGet, and JitPack — plus a Postman collection and an OpenAPI spec. See the SDK guide →

JitPack

No-Code Integrations

Marine Weather works with Zapier, Make, Pipedream, n8n, and Power Automate using the same API key. See setup guides →

Zapier

Make

Pipedream

n8n

Power Automate

Frequently Asked Questions

How do I get an API key for Marine Weather?

Sign up for a free account at dashboard.apiverve.com. Your API key will be automatically generated and available in your dashboard. The same key works for Marine Weather and all other APIVerve APIs. The free plan includes 1,000 credits plus a 500 credit bonus.

How many credits does Marine Weather cost?

Each successful Marine Weather API call consumes credits based on plan tier. Check the pricing section above for the exact credit cost. Failed requests and errors don't consume credits, so you only pay for successful marine weather lookups.

Can I use Marine Weather in production?

The free plan is for testing and development only. For production use of Marine Weather, upgrade to a paid plan (Starter, Pro, or Mega) which includes commercial use rights, no attribution requirements, and guaranteed uptime SLAs. All paid plans are production-ready.

Can I use Marine Weather from a browser?

Yes! The Marine Weather API supports CORS with wildcard configuration, so you can call it directly from browser-based JavaScript without needing a proxy server. See the CORS section above for details.

What happens if I exceed my Marine Weather credit limit?

When you reach your monthly credit limit, Marine Weather API requests will return an error until you upgrade your plan or wait for the next billing cycle. You'll receive notifications at 80% and 95% usage to give you time to upgrade if needed.

What's Next?

Continue your journey with these recommended resources

Browse All APIs

Explore our complete catalog of APIs

Authentication Guide

Learn about API keys and security

Rate Limits

Understand usage limits and best practices

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Marine Weather API

Overview

GET Endpoint

Example

Authentication

Interactive API Playground

Parameters

Get Marine Weather

Response

Other Response Formats

Response Structure

Response Data Fields

Headers

GraphQL AccessALPHA

CORS Support

Rate Limiting

Error Codes

SDKs for Marine Weather

No-Code Integrations

Frequently Asked Questions

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What's Next?

Browse All APIs

Authentication Guide

Rate Limits