16 Day Weather Forecast API (1 day interval)

This API returns a 16 day forecast in 1 day intervals from any point on the planet.

All parameters should be supplied to the Weather API as query string parameters.

Base URL

HTTP: http://api.weatherbit.io/v2.0/forecast/daily

HTTPS: https://api.weatherbit.io/v2.0/forecast/daily

Supported Methods: GET

Request Parameters

key=[key] (REQUIRED)

key - Your API Key.

lang=[language](optional)

en - [DEFAULT] English
ar - Arabic
az - Azerbaijani
be - Belarusian
bg - Bulgarian
bs - Bosnian
ca - Catalan
cz - Czech
da - Danish
de - German
fi - Finnish
fr - French
el - Greek
es - Spanish
et - Estonian
ja - Japanese
hr - Croation
hu - Hungarian
id - Indonesian
it - Italian
is - Icelandic
iw - Hebrew
kw - Cornish
lt - Lithuanian
nb - Norwegian Bokmål
nl - Dutch
pl - Polish
pt - Portuguese
ro - Romanian
ru - Russian
sk - Slovak
sl - Slovenian
sr - Serbian
sv - Swedish
tr - Turkish
uk - Ukrainian
zh - Chinese (Simplified)
zh-tw - Chinese (Traditional)

units=[units](optional)

M - [DEFAULT] Metric (Celsius, m/s, mm)
S - Scientific (Kelvin, m/s, mm)
I - Fahrenheit (F, mph, in)

days=[integer] (optional: return a specific number of forecast days)

16 - [DEFAULT] 16 days

API Endpoints

Description	Required Parameters	Example(s)
Get forecast by lat/lon (Recommended)	lat,lon	&lat=38.123&lon=-78.543
Get forecast by city name	city, state(optional), country (optional)	&city=Raleigh&country=US &city=Raleigh,NC &city=Raleigh,North+Carolina
Get forecast by postal code	postal_code, country (optional)	&postal_code=27601&country=US
Get forecast by Station	station	&station=KRDU
Get forecast by city id	city_id	&city_id=8953360

Example Request:

https://api.weatherbit.io/v2.0/forecast/daily?lat=47.6061&lon=-122.3328&key=API_KEY

Example Response (JSON):


        {
          "city_name": "Seattle",
          "country_code": "US",
          "data": [
            {
              "app_max_temp": 21.9,
              "app_min_temp": 15,
              "clouds": 57,
              "clouds_hi": 29,
              "clouds_low": 53,
              "clouds_mid": 33,
              "datetime": "2025-09-12",
              "dewpt": 14.3,
              "high_temp": 22.4,
              "low_temp": 13.9,
              "max_dhi": null,
              "max_temp": 22.4,
              "min_temp": 14.7,
              "moon_phase": 0.56,
              "moon_phase_lunation": 0.7,
              "moonrise_ts": 1757736159,
              "moonset_ts": 1757713575,
              "ozone": 280,
              "pop": 0,
              "precip": 0,
              "pres": 1012,
              "rh": 80,
              "slp": 1016,
              "snow": 0,
              "snow_depth": 0,
              "sunrise_ts": 1757684620,
              "sunset_ts": 1757730455,
              "temp": 17.8,
              "ts": 1757660460,
              "uv": 5,
              "valid_date": "2025-09-12",
              "vis": 17,
              "weather": {
                "code": 803,
                "description": "Broken clouds",
                "icon": "c03d"
              },
              "wind_cdir": "SW",
              "wind_cdir_full": "southwest",
              "wind_dir": 228,
              "wind_gust_spd": 1.9,
              "wind_spd": 1.1
            },
            {
              "app_max_temp": 23.7,
              "app_min_temp": 14.2,
              "clouds": 58,
              "clouds_hi": 94,
              "clouds_low": 1,
              "clouds_mid": 60,
              "datetime": "2025-09-13",
              "dewpt": 14.4,
              "high_temp": 24.2,
              "low_temp": 15.4,
              "max_dhi": null,
              "max_temp": 24.2,
              "min_temp": 13.9,
              "moon_phase": 0.44,
              "moon_phase_lunation": 0.74,
              "moonrise_ts": 1757824611,
              "moonset_ts": 1757804078,
              "ozone": 282,
              "pop": 0,
              "precip": 0,
              "pres": 1007,
              "rh": 80,
              "slp": 1011,
              "snow": 0,
              "snow_depth": 0,
              "sunrise_ts": 1757771100,
              "sunset_ts": 1757816732,
              "temp": 18.2,
              "ts": 1757746860,
              "uv": 3,
              "valid_date": "2025-09-13",
              "vis": 18.6,
              "weather": {
                "code": 803,
                "description": "Broken clouds",
                "icon": "c03d"
              },
              "wind_cdir": "SSE",
              "wind_cdir_full": "south-southeast",
              "wind_dir": 161,
              "wind_gust_spd": 2,
              "wind_spd": 1.3
            }, ...
          ],
          "lat": 47.6061,
          "lon": -122.3328,
          "state_code": "WA",
          "timezone": "America/Los_Angeles"
        }

Field Decriptions:

lat: Latitude (Degrees)
lon: Longitude (Degrees)
timezone: Local IANA Timezone
city_name: Nearest city name
country_code: Country abbreviation
state_code: State abbreviation/code
data: [

valid_date:Local date the forecast is valid for in format YYYY-MM-DD
ts: Forecast period start unix timestamp (UTC)
datetime:[DEPRECATED - use "valid_date"] Forecast valid date (YYYY-MM-DD)
wind_gust_spd: Wind gust speed (Default m/s)
wind_spd: Wind speed (Default m/s)
wind_dir: Wind direction (degrees)
wind_cdir: Abbreviated wind direction
wind_cdir_full: Verbal wind direction
temp: Average Temperature (default Celsius)
max_temp: Maximum Temperature - Calculated from Midnight to Midnight local time (default Celsius)
min_temp: Minimum Temperature - Calculated from Midnight to Midnight local time (default Celsius)
high_temp: High Temperature "Day-time High" - Calculated from 7 AM to 7 PM local time (default Celsius)
low_temp: Low Temperature "Night-time Low" - Calculated from 7 PM to 7 AM local (default Celsius)
app_max_temp: Apparent/"Feels Like" temperature at max_temp time (default Celsius)
app_min_temp: Apparent/"Feels Like" temperature at min_temp time (default Celsius)
pop: Probability of Precipitation (%)
precip: Accumulated liquid equivalent precipitation (default mm)
snow: Accumulated snowfall (default mm)
snow_depth: Snow Depth (default mm)
pres: Average pressure (mb)
slp: Average sea level pressure (mb)
dewpt: Average dew point (default Celsius)
rh: Average relative humidity (%)
weather: {
- icon:Weather icon code
- code:Weather code
- description: Text weather description
}
clouds_low: Low-level (~0-3km AGL) cloud coverage (%)
clouds_mid: Mid-level (~3-5km AGL) cloud coverage (%)
clouds_hi: High-level (>5km AGL) cloud coverage (%)
clouds: Average total cloud coverage (%)
vis: Visibility (default KM)
max_dhi: [DEPRECATED] Maximum direct component of solar radiation (W/m^2)
uv: Maximum UV Index (0-11+)
ozone: Average Ozone (Dobson units)
moon_phase: Moon phase illumination fraction (0-1)
moon_phase_lunation: Moon lunation fraction (0 = New moon, 0.50 = Full Moon, 0.75 = Last quarter moon)
moonrise_ts: Moonrise time unix timestamp (UTC)
moonset_ts: Moonset time unix timestamp (UTC)
sunrise_ts: Sunrise time unix timestamp (UTC)
sunset_ts: Sunset time unix timestamp (UTC)

... ]

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16 Day Weather Forecast API (1 day interval)

Base URL

Request Parameters

API Endpoints

Example Request:

Example Response (JSON):

Field Decriptions:

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