WeatherKit · IOS API REFERENCE

HourWeather

struct · iOS 16.0+ · SDK 27.1

struct HourWeather

A structure that represents the weather conditions for the hour.

Members (38)

get · iOS 16.0+

cloudCover

TypeScript

get cloudCover(): number

Swift declaration

var cloudCover: Double

The percentage of the sky covered with clouds. The value is from `0` (no cloud cover) to `1` (complete cloud cover).

set · iOS 16.0+

cloudCover

TypeScript

set cloudCover(value: number)

Swift declaration

var cloudCover: Double

The percentage of the sky covered with clouds. The value is from `0` (no cloud cover) to `1` (complete cloud cover).

get · iOS 16.0+

isDaylight

TypeScript

get isDaylight(): boolean

Swift declaration

var isDaylight: Bool

The presence or absence of daylight at the requested location and hour.

set · iOS 16.0+

isDaylight

TypeScript

set isDaylight(value: boolean)

Swift declaration

var isDaylight: Bool

The presence or absence of daylight at the requested location and hour.

get · iOS 16.0+

symbolName

TypeScript

get symbolName(): string

Swift declaration

var symbolName: String

The SF Symbol icon that represents the hour weather condition and whether it's daylight on the hour.

set · iOS 16.0+

symbolName

TypeScript

set symbolName(value: string)

Swift declaration

var symbolName: String

The SF Symbol icon that represents the hour weather condition and whether it's daylight on the hour.

get · iOS 16.0+

visibility

TypeScript

get visibility(): _Foundation_Measurement<_Foundation_UnitLength>

Swift declaration

var visibility: Measurement<UnitLength>

The distance at which an object can be clearly seen. The amount of light and weather conditions like fog, mist, and smog affect visibility.

set · iOS 16.0+

visibility

TypeScript

set visibility(value: _Foundation_Measurement<_Foundation_UnitLength>)

Swift declaration

var visibility: Measurement<UnitLength>

The distance at which an object can be clearly seen. The amount of light and weather conditions like fog, mist, and smog affect visibility.

get · iOS 16.0+

temperature

TypeScript

get temperature(): _Foundation_Measurement<_Foundation_UnitTemperature>

Swift declaration

var temperature: Measurement<UnitTemperature>

The temperature during the hour.

set · iOS 16.0+

temperature

TypeScript

set temperature(value: _Foundation_Measurement<_Foundation_UnitTemperature>)

Swift declaration

var temperature: Measurement<UnitTemperature>

The temperature during the hour.

get · iOS 16.0+

precipitation

TypeScript

get precipitation(): Precipitation

Swift declaration

var precipitation: Precipitation

Description of precipitation for this hour.

set · iOS 16.0+

precipitation

TypeScript

set precipitation(value: Precipitation)

Swift declaration

var precipitation: Precipitation

Description of precipitation for this hour.

get · iOS 16.0+

pressureTrend

TypeScript

get pressureTrend(): PressureTrend

Swift declaration

var pressureTrend: PressureTrend

The kind and amount of atmospheric pressure change over time.

set · iOS 16.0+

pressureTrend

TypeScript

set pressureTrend(value: PressureTrend)

Swift declaration

var pressureTrend: PressureTrend

The kind and amount of atmospheric pressure change over time.

get · iOS 18.0+

snowfallAmount

TypeScript

get snowfallAmount(): _Foundation_Measurement<_Foundation_UnitLength>

Swift declaration

var snowfallAmount: Measurement<UnitLength>

The amount of snowfall for the hour. Snowfall amount refers to the depth of snow rather than the liquid equivalent. The system computes this value by applying a temperature-based conversion to crystal size.

set · iOS 18.0+

snowfallAmount

TypeScript

set snowfallAmount(value: _Foundation_Measurement<_Foundation_UnitLength>)

Swift declaration

var snowfallAmount: Measurement<UnitLength>

get · iOS 16.0+

apparentTemperature

TypeScript

get apparentTemperature(): _Foundation_Measurement<_Foundation_UnitTemperature>

Swift declaration

var apparentTemperature: Measurement<UnitTemperature>

The apparent, or "feels like" temperature during the hour.

set · iOS 16.0+

apparentTemperature

TypeScript

set apparentTemperature(value: _Foundation_Measurement<_Foundation_UnitTemperature>)

Swift declaration

var apparentTemperature: Measurement<UnitTemperature>

The apparent, or "feels like" temperature during the hour.

get · iOS 16.0+

precipitationAmount

TypeScript

get precipitationAmount(): _Foundation_Measurement<_Foundation_UnitLength>

Swift declaration

var precipitationAmount: Measurement<UnitLength>

The amount of precipitation for the hour. This value refers to the liquid equivalent of all precipitation amounts. Note that since this is the amount over the hour and the precipitation intensity is also amount over the hour, this property also means precipitationIntensity

set · iOS 16.0+

precipitationAmount

TypeScript

set precipitationAmount(value: _Foundation_Measurement<_Foundation_UnitLength>)

Swift declaration

var precipitationAmount: Measurement<UnitLength>

get · iOS 16.0+

precipitationChance

TypeScript

get precipitationChance(): number

Swift declaration

var precipitationChance: Double

The probability of precipitation during the hour. The value is from `0` (0% probability) to `1` (100% probability).

set · iOS 16.0+

precipitationChance

TypeScript

set precipitationChance(value: number)

Swift declaration

var precipitationChance: Double

The probability of precipitation during the hour. The value is from `0` (0% probability) to `1` (100% probability).

get · iOS 18.0+

cloudCoverByAltitude

TypeScript

get cloudCoverByAltitude(): CloudCoverByAltitude

Swift declaration

var cloudCoverByAltitude: CloudCoverByAltitude

The percentage of the sky covered with low altitude, middle altitude and high altitude clouds during the period.

set · iOS 18.0+

cloudCoverByAltitude

TypeScript

set cloudCoverByAltitude(value: CloudCoverByAltitude)

Swift declaration

var cloudCoverByAltitude: CloudCoverByAltitude

The percentage of the sky covered with low altitude, middle altitude and high altitude clouds during the period.

get · iOS 16.0+

date

TypeScript

get date(): globalThis.Date

Swift declaration

var date: Date

The start time of the hour weather.

set · iOS 16.0+

date

TypeScript

set date(value: globalThis.Date)

Swift declaration

var date: Date

The start time of the hour weather.

get · iOS 16.0+

wind

TypeScript

get wind(): Wind

Swift declaration

var wind: Wind

Wind data describing the wind speed, direction, and gust.

set · iOS 16.0+

wind

TypeScript

set wind(value: Wind)

Swift declaration

var wind: Wind

Wind data describing the wind speed, direction, and gust.

get · iOS 16.0+

uvIndex

TypeScript

get uvIndex(): UVIndex

Swift declaration

var uvIndex: UVIndex

The expected intensity of ultraviolet radiation from the sun.

set · iOS 16.0+

uvIndex

TypeScript

set uvIndex(value: UVIndex)

Swift declaration

var uvIndex: UVIndex

The expected intensity of ultraviolet radiation from the sun.

get · iOS 16.0+

dewPoint

TypeScript

get dewPoint(): _Foundation_Measurement<_Foundation_UnitTemperature>

Swift declaration

var dewPoint: Measurement<UnitTemperature>

The amount of moisture in the air. Dew point is the temperature at which air is saturated with water vapor.

set · iOS 16.0+

dewPoint

TypeScript

set dewPoint(value: _Foundation_Measurement<_Foundation_UnitTemperature>)

Swift declaration

var dewPoint: Measurement<UnitTemperature>

The amount of moisture in the air. Dew point is the temperature at which air is saturated with water vapor.

get · iOS 16.0+

humidity

TypeScript

get humidity(): number

Swift declaration

var humidity: Double

The humidity for the hour. Relative humidity measures the amount of water vapor in the air compared to the maximum amount that the air could normally hold at the current temperature. The value is from `0` (no humidity) to `1` (100% humidity).

set · iOS 16.0+

humidity

TypeScript

set humidity(value: number)

Swift declaration

var humidity: Double

get · iOS 16.0+

pressure

TypeScript

get pressure(): _Foundation_Measurement<_Foundation_UnitPressure>

Swift declaration

var pressure: Measurement<UnitPressure>

The atmospheric pressure at sea level at a given location. This is a reduced pressure calculated by using observed conditions to remove the effects of elevation from pressure readings.

set · iOS 16.0+

pressure

TypeScript

set pressure(value: _Foundation_Measurement<_Foundation_UnitPressure>)

Swift declaration

var pressure: Measurement<UnitPressure>

The atmospheric pressure at sea level at a given location. This is a reduced pressure calculated by using observed conditions to remove the effects of elevation from pressure readings.

get · iOS 16.0+

condition

TypeScript

get condition(): WeatherCondition

Swift declaration

var condition: WeatherCondition

A description of the weather condition for this hour.

set · iOS 16.0+

condition

TypeScript

set condition(value: WeatherCondition)

Swift declaration

var condition: WeatherCondition

A description of the weather condition for this hour.

Skipped declarations

No declarations were skipped in this snapshot.

All WeatherKit types →