xsmeteo

High-performance, strictly typed Python wrapper for the Open-Meteo API.

Features

• 🚀 High Performance – Uses msgspec for maximum serialization speed
• 🔒 100% Type Safe – Full static typing with mypy --strict compliance
• 🔄 Sync & Async – Both synchronous and asynchronous clients
• ⏱️ Built-in Rate Limiting – Hierarchical token bucket respecting Open-Meteo limits
• 🌍 Full API Coverage – All 9 Open-Meteo endpoints supported

Installation

pip install xsmeteo

Or with uv:

uv add xsmeteo

Quick Start

Synchronous Usage

from xsmeteo import XSMeteo

with XSMeteo() as client:
    # Get weather forecast
    forecast = client.get_forecast(
        latitude=52.52,
        longitude=13.41,
        hourly=["temperature_2m", "rain"],
        timezone="auto",
    )
    print(forecast)
    # Access data using dictionary syntax:
    if forecast.hourly:
        print(forecast.hourly["temperature_2m"])

Asynchronous Usage

import asyncio
from xsmeteo import AsyncXSMeteo

async def main():
    async with AsyncXSMeteo() as client:
        forecast = await client.get_forecast(
            latitude=52.52,
            longitude=13.41,
            hourly=["temperature_2m"],
        )
        print(forecast)
        if forecast.hourly:
            print(forecast.hourly["temperature_2m"])

asyncio.run(main())

API Coverage

Endpoint	Method	Description
Forecast	get_forecast()	Current weather and up to 16-day forecast
Historical	get_historical()	Decades of historical weather data (ERA5)
Marine	get_marine()	Oceanographic data (waves, currents)
Air Quality	get_air_quality()	Pollutants and pollen forecasts
Geocoding	search_locations()	Forward geocoding (name to coordinates)
Elevation	get_elevation()	Altitude data for coordinates
Flood	get_flood()	River discharge and flood forecasts
Ensemble	get_ensemble()	Probabilistic ensemble forecasts
Climate	get_climate()	Long-term climate projections (CMIP6)

Rate Limiting

xsmeteo includes built-in rate limiting that respects Open-Meteo's fair use policy:

Limit	Value
Minutely	~600 requests
Hourly	~5,000 requests
Daily	~10,000 requests

Custom limits can be configured:

from xsmeteo import XSMeteo, RateLimitConfig

custom_limits = [
    RateLimitConfig(limit=100, period_seconds=60.0),  # 100/min
]

client = XSMeteo(rate_limits=custom_limits)

License

MIT License. See LICENSE for details.

Attribution

This library uses the Open-Meteo API under CC-BY 4.0.