WeatherKit, together with the all-new Apple Weather service, provides apps and services with a wide range of valuable weather data that can help people stay up to date, safe, and prepared. Learn about the requirements, tools to get started, and how to transition from the Dark Sky weather service.
Access to WeatherKit is included in the Apple Developer Program, which also provides all the tools, resources, and support you need to develop and distribute apps — including access to beta software, app services, testing tools, app analytics, and more.
WeatherKit requires iOS 16, iPadOS 16, macOS 13, tvOS 16, or watchOS 9. REST APIs can be used for websites and other platforms.
WeatherKit provides up to 500,000 API calls a month per Apple Developer Program membership. If you need additional API calls, the Account Holder of your Apple Developer Program membership can subscribe in the Account tab of the Apple Developer app. Subscription plans are priced in U.S. dollars, or in local currency where available.
The Account Holder can upgrade or downgrade a subscription at any time. If the Account Holder:
Please note that unused API calls don’t roll over to the next month.
When using WeatherKit in your apps, web apps, or websites, you’ll need to follow guidelines and requirements for attributing weather data from Apple. For details, view the attribution requirements section below.
Swift APIs for WeatherKit require Xcode 14, iOS 16, iPadOS 16, macOS 13, tvOS 16, and watchOS 9. For other platforms and websites, you can use the REST API.
You’ll need to use Certificates, Identifiers & Profiles to set up identifiers and keys before you can implement WeatherKit.
If your apps, web apps, or websites display any weather data from Apple (other than weather alerts or value-added services or products, as described below), you must clearly display the Apple Weather trademark (Weather), as well as the legal link to other data sources.
Value-added services or products means data, products, and/or services you develop that are derived from weather data from Apple and are transformed so that no user or other third party can discover, access, reverse engineer, or otherwise ascertain or use the original weather data from Apple. When displaying value-added services or products, you agree to attribute the source of the data to “Weather”, along with a notice that the data provided by Apple has been modified.
Support for the Dark Sky weather service will end March 31, 2023. To transition to WeatherKit and continue accessing weather data for your apps, webs apps, websites, and services, you’ll need to be a member of the Apple Developer Program, review special considerations, and map fields to their appropriate names.
If you’re a nonprofit organization, accredited educational institution, or government entity, you may qualify for an Apple Developer Program membership fee waiver.
| Dark Sky Field | REST | Swift |
|---|---|---|
| RESPONSE FORMAT | ||
| latitude | metadata.latitude | metadata.latitude |
| longitude | metadata.longitude | metadata.longitude |
| exclude | None | None |
| extend=hourly | None | None |
| lang=[language] | metadata.language | None |
| units=[units] | metadata.units | None |
| timezone | None | None |
| currently | currentWeather | currentWeather |
| minutely | forecastNextHour | minuteForecast |
| hourly | forecastHourly | hourlyForecast |
| daily | forecastDaily | dailyForecast |
| alerts | weatherAlerts | weatherAlerts |
| flags | metadata (on each object) | metadata (on each object) |
| DATA POINT OBJECT | ||
| apparentTemperature | temperatureApparent | apparentTemperature |
| apparentTemperatureHigh | None | None |
| apparentTemperatureHighTime | None | None |
| apparentTemperatureLow | None | None |
| apparentTemperatureLowTime | None | None |
| apparentTemperatureMax | None | None |
| apparentTemperatureMaxTime | None | None |
| apparentTemperatureMin | None | None |
| apparentTemperatureMinTime | None | None |
| cloudCover | cloudCover | cloudCover |
| dewPoint | temperatureDewPoint | dewpoint |
| humidity | humidity | humidity |
| icon | conditionCode | condition / symbolName |
| moonPhase | moonPhase (daily only) | dailyForecast.moon.phase |
| nearestStormBearing | None | None |
| nearestStormDistance | None | None |
| ozone | None | None |
| precipAccumulation | precipitationAmount | precipitationAmount |
| precipIntensity | precipitationIntensity | precipitationIntensity |
| precipIntensityError | None | None |
| precipIntensityMax | None | None |
| precipIntensityMaxTime | None | None |
| precipProbability | precipitationChance | precipitationChance |
| precipType | precipitationType | precipitation |
| pressure | pressure | pressure |
| summary | None | minuteForecast.summary |
| sunriseTime | sunrise, sunriseAstronomical, sunriseCivil, sunriseNautical | sun.sunrise |
| sunsetTime | sunset, sunsetAstronomical, sunsetCivil, sunsetNautical | sun.sunset |
| temperature | temperature | temperature |
| temperatureHigh | None | None |
| temperatureHighTime | None | None |
| temperatureLow | None | None |
| temperatureLowTime | None | None |
| temperatureMax | temperatureMax | highTemperature |
| temperatureMaxTime | None | None |
| temperatureMin | temperatureMin | lowTemperature |
| temperatureMinTime | None | None |
| time | dailyStart, hourlyStart, forecastStart, startTime | date |
| uvIndex | uvIndex | uvIndex |
| uvIndexTime | None | None |
| visibility | visibility | visibility |
| windBearing | windDirection | wind.direction |
| windGust | windGust | wind.gust |
| windGustTime | None | None |
| windSpeed | windSpeed | wind.speed |
| DATA BLOCK OBJECT | ||
| data | dataSets | None |
| summary | None | None |
| icon | conditionCode | condition / symbolName |
| ALERTS ARRAY | ||
| description | messages | summary |
| expires | expireTime | metadata.expirationDate |
| regions | areaId/areaName | region |
| severity | severity | severity |
| time | issuedTime | metadata.date |
| title | description | summary |
| uri | detailsUrl | detailsURL |
| FLAGS OBJECT | ||
| nearest-station | None | None |
| sources | source | weatherService.attribution |
| units | units | None |
| RESPONSE HEADERS | ||
| Cache-Control | Cache-Control | None |
| Expires deprecated | None | None |
| X-Forecast-API-Calls | None | None |
| X-Response-Time | None | None |
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