Overview
Marine Weather works by retrieving the marine weather data from various reliable weather sources and providing it in a structured format. You can expect accurate and up-to-date information.
Live Test Marine Weather Skill Skill →
The tool
Once your client is connected to the VerveKit server, this appears in its tool list as MarineWeatherSkill. It is read-only and open-world — it fetches and never mutates anything on your side — so most clients call it without asking you to confirm.
{
"name": "MarineWeatherSkill",
"arguments": {
"lat": "29.48003",
"lon": "-37.62424"
}
}You do not name the tool yourself; the model picks it. Asking about 29.48003 in the terms this skill covers is enough for it to reach for MarineWeatherSkill on its own — naming it explicitly also works, and is the way to force the call.
Connecting
One server URL covers every skill in the catalog, including this one. Authorization is OAuth: the client opens a browser once, and there is no key to paste into a config file.
{
"mcpServers": {
"vervekit": {
"url": "https://api.vervekit.com/v1/mcp"
}
}
}https://api.vervekit.com/v1/mcpPer-client setup — Claude, Cursor, VS Code, ChatGPT — is on the MCP setup page.
Arguments
These are the properties on the tool's inputSchema, so a well-behaved client validates them before the call is made. Premium arguments are accepted on every plan but only take effect on plans that include them.
| Argument | Type | Description |
|---|---|---|
latRequired | number | The latitude coordinate of the location range -90–90 |
lonRequired | number | The longitude coordinate of the location range -180–180 |
What the model gets back
The result carries a structuredContent object matching the tool's declared outputSchema, so a client reads fields without parsing prose. status is "ok" and error is null on success; a null field means the value was not available for that input, not that the call failed.
{
"status": "ok",
"error": null,
"data": {
"location": {
"lat": 29.48003,
"lon": -37.62424
},
"weather": {
"date": "2026-09-17",
"avghumidity": 86,
"condition": "Moderate or heavy rain shower",
"uv": 5,
"sunrise": "05:53 AM",
"sunset": "06:08 PM",
"moonrise": "12:04 PM",
"moonset": "10:42 PM",
"maxtempc": 25.9,
"maxtempf": 78.6,
"mintempc": 21.3,
"mintempf": 70.3,
"avgtempc": 24.9,
"avgtempf": 76.8,
"maxwindmph": 15.4,
"maxwindkph": 24.7,
"totalprecipmm": 14.89,
"totalprecipin": 0.59,
"totalsnowcm": 0,
"avgviskm": 7.4,
"avgvismiles": 4,
"moonphase": "First Quarter",
"moonillumination": 42
}
}
}
Response fields
Paths are relative to data. Premium fields are absent rather than zeroed on plans that do not include them, so check for presence instead of comparing to 0.
| Field | Type | Example | Description |
|---|---|---|---|
location | object | {…} | |
location.lat | number | 29.48003 | Latitude coordinate of the marine weather location |
location.lon | number | -37.62424 | Longitude coordinate of the marine weather location |
weather | object | {…} | |
weather.date | string | 2026-09-17 | Forecast date in YYYY-MM-DD format |
weather.avghumidity | number | 86 | Average humidity percentage for the day |
weather.condition | string | Moderate or heavy rain shower | Weather condition summary for the day |
weather.uv | number | 5 | UV index for the day |
weather.sunrise | string | 05:53 AM | Local sunrise time |
weather.sunset | string | 06:08 PM | Local sunset time |
weather.moonrise | string | 12:04 PM | Local moonrise time |
weather.moonset | string | 10:42 PM | Local moonset time |
weather.maxtempc | number | 25.9 | Maximum temperature in Celsius for the location |
weather.maxtempf | number | 78.6 | Maximum temperature in Fahrenheit for the location |
weather.mintempc | number | 21.3 | Minimum temperature in Celsius for the location |
weather.mintempf | number | 70.3 | Minimum temperature in Fahrenheit for the location |
weather.avgtempc | number | 24.9 | Average temperature in Celsius for the location |
weather.avgtempf | number | 76.8 | Average temperature in Fahrenheit for the location |
weather.maxwindmph | number | 15.4 | Maximum wind speed in miles per hour |
weather.maxwindkph | number | 24.7 | Maximum wind speed in kilometers per hour |
weather.totalprecipmm | number | 14.89 | Total precipitation amount in millimeters |
weather.totalprecipin | number | 0.59 | Total precipitation amount in inches |
weather.totalsnowcm | number | 0 | Total snow depth in centimeters |
weather.avgviskmPremium | number | 7.4 | Average visibility distance in kilometers |
weather.avgvismilesPremium | number | 4 | Average visibility distance in miles |
weather.moonphasePremium | string | First Quarter | Current moon phase description for the location |
weather.moonilluminationPremium | number | 42 | Moon illumination percentage from zero to one hundred |
Failure modes
Errors come back as tool errors carrying a sentence the model can act on, not a bare status code. Error handling covers the full list.
| Status | What it means |
|---|---|
400 / 422 | The arguments did not validate. The message names the offending one. |
401 | The OAuth session is invalid or expired — reconnect the server. |
403 | Blocked by a key restriction or an IP allow-list. Never a bad identity. |
404 | This skill is not part of VerveKit. Check the catalog. |
429 | Out of credits, or a brief rate limit. The message tells them apart. |
A call costs 10 credits each time the tool actually runs; a model that reasons about the tool without calling it costs nothing.
Use cases
- Voyage Route Planning
- Commercial shipping dispatchers evaluate maximum wind speeds and precipitation totals along projected corridors to steer vessels away from rough open-sea conditions.
- Offshore Fishing Charters
- To protect offshore anglers, booking platforms check marine weather conditions, humidity levels, and UV indices before confirming deep-sea reservations.
- Regatta Safety Monitoring
- When organizing coastal sailing competitions, race committees monitor wind thresholds and precipitation to schedule offshore heats during safe operating windows.
- Port Logistics Scheduling
- Cargo terminal coordinators track offshore forecast conditions and daylight hours to prepare docking tugs and crane crews for inbound container vessels.
Other ways to use Marine Weather Skill
Set up Marine Weather Skill on VerveKit, or reach the same source a different way. Your VerveKit account and credits work on all of them — one key, one balance.
Related
More in Weather: