Weather maps 2.0
Forecast, Historical and Current weather maps. 15 weather map layers.
You can get all of them using only one simple URL!
Using one simple URL you can get the following weather maps:
- Current weather maps
- Forecast weather maps: The forecast for 10 days with a 3 hours-step
- Historical weather map: Archive since March, 2019
URL format and parameters
Use the following URL format and parameters to get weather maps. Please pay attention to the URL example.
API call
http://maps.openweathermap.org/maps/2.0/weather/{op}/{z}/{x}/{y}?appid={API key}
Parameters | ||
---|---|---|
{op} |
required | Weather map layer. Full list of available weather map layers here |
{z} |
required | Number of zoom level |
{x} |
required | Number of x tile coordinate |
{y} |
required | Number of y tile coordinate |
appid |
required | Your unique API key (you can always find it on your account page under the "API key" tab) |
date |
optional | Date and time of (Unix time, UTC), e.g. date=1552861800. If you do not specify any date and time, you will get Current weather map. More information about how to get Current, Forecast and Historical maps you can find here. |
opacity |
optional | Degree of layer opacity. Available value from 0 to 1 (default - 0.8) |
palette |
optional | Color palette. You can use custom palettes for each layer. You can also create a palette for
yourself and pass it to the URL as follows {value}:{HEX color};..;{value}:{HEX color} . More information about it here. |
fill_bound |
optional | true or false . If true , then all weather values outside the
specified set of values will be filled by color corresponding to the nearest specified value
(default value - false : all weather values outside the specified set of values are not
filled). |
arrow_step |
optional | Step of values for drawing wind arrows, specify in pixels (default - 32). Parameter only for wind layers (WND). |
use_norm |
optional | true or false . If true , then the length of the arrows is
normalizing (default - false : the length of the arrows is proportional to the speed
wind value). Parameter only for wind layers (WND). |
URL example
http://maps.openweathermap.org/maps/2.0/weather/TA2/{z}/{x}/{y}?date=1552861800&opacity=0.9&fill_bound=true&appid={API key}
You need to insert the generated URL into special plugins.
For example, Leaflet, OpenLayers. You can also use any other apps that support the display of layers. Learn more.
How to get current, forecast and historical weather maps using only 'date' parameter?
To get current, forecast or historical weather maps you just need to change only date
parameter in the URL request:
1. Current weather maps. Specify the current date and time to get Current weather map. The date and time specified in the request will be rounded to the previous 3-hour interval.
2. Forecast weather maps. You can specify any date and time within the next 10 days to get the Forecast weather maps for the specified time. If you do not specify any date and time, you will get Current weather map.
Not available for TS0 and TS10 layers.
3. Historical weather maps. If you specify any date and time since 18 March 2019, you will receive Historical weather maps for the selected date and time. If you do not specify any date and time, you will get Current weather map.
What layers are there in the new weather maps?
To specify the selected layer in the URL, insert instead of the {op}
parameter one of the
following values:
{Op} | Meaning | Units |
---|---|---|
PAC0 | Convective precipitation | mm |
PR0 | Precipitation intensity | mm/s |
PA0 | Accumulated precipitation | mm |
PAR0 | Accumulated precipitation - rain | mm |
PAS0 | Accumulated precipitation - snow | mm |
SD0 | Depth of snow | m |
WS10 | Wind speed at an altitude of 10 meters | m/s |
WND | Joint display of speed wind (color) and wind direction (arrows), received by U and V components | m/s |
APM | Atmospheric pressure on mean sea level | hPa |
TA2 | Air temperature at a height of 2 meters | °C |
TD2 | Temperature of a dew point | °C |
TS0 | Soil temperature 0-10 сm | K |
TS10 | Soil temperature >10 сm | K |
HRD0 | Relative humidity | % |
CL | Cloudiness | % |
How to pass my palette in the map?
For each layer we have custom palettes, but you can use your own palette and pass it to the URL as shown
{value}:{HEX color};..;{value}:{HEX color}
.
The number of values in the custom palette can be any, but not less than 2. You can set the color for any value with any precision.
To pass the code of color, use the HEX format.
URL Example
http://maps.openweathermap.org/maps/2.0/weather/TA2/{z}/{x}/{y}?date=1552861800&opacity=0.9&fill_bound=true&palette=0:FF0000;10:00FF00;20:0000FF&appid={API key}
Examples of Weather maps
Air temperature at a height of 2 meters weather layer
Default parameters
op
: TA2
fill_bound
: false
URL example
http://maps.openweathermap.org/maps/2.0/weather/TA2/{z}/{x}/{y}?appid={API key}
Air temperature at a height of 2 meters weather layer
Custom palette
op
: TA2
opacity
: 0.6
fill_bound
: true
palette
: custom (see example)
URL example
http://maps.openweathermap.org/maps/2.0/weather/TA2/{z}/{x}/{y}?appid={API key}&fill_bound=true&opacity=0.6&palette=-65:821692;-55:821692;-45:821692;-40:821692;-30:8257db;-20:208cec;-10:20c4e8;0:23dddd;10:c2ff28;20:fff028;25:ffc228;30:fc8014
Accumulated precipitation weather layer
Default parameters
op
: PA0
URL example
http://maps.openweathermap.org/maps/2.0/weather/PA0/{z}/{x}/{y}?date=1552861800&appid={API key}
Atmospheric pressure on mean sea level weather layer
Default parameters
op
: APM
URL example
http://maps.openweathermap.org/maps/2.0/weather/PA0/{z}/{x}/{y}?date=1552861800&appid={API key}
Joint display of speed wind (color) and wind direction (arrows) weather layer
Default parameters
op
: WND
use_norm
: false
arrow_step
: 32
URL example
http://maps.openweathermap.org/maps/2.0/weather/WND/{z}/{x}/{y}?date=1552861800&appid={API key}
Joint display of speed wind (color) and wind direction (arrows) weather layer
Custom parameters
op
: WND
use_norm
: true
arrow_step
: 16
URL example
http://maps.openweathermap.org/maps/2.0/weather/WND/{z}/{x}/{y}?date=1552861800&use_norm=true&arrow_step=16&appid={API key}
Default palettes
Weather layer | Palette | Opacity | Fill bound | Use norm | Arrow step |
---|---|---|---|---|---|
PAC0
Convective precipitation |
1:ACAAF7; 10:8D8AF3; 20:706EC2; 40:5658FF; 100:5B5DB1; 200:3E3F85 | 0.8 | 0 | - | - |
PR0
Precipitation intensity |
0.000005:FEF9CA; 0.000009:B9F7A8; 0.000014:93F57D; 0.000023:78F554; 0.000046:50B033; 0.000092:387F22; 0.000231:204E11; 0.000463:F2A33A; 0.000694:E96F2D; 0.000926:EB4726; 0.001388:B02318; 0.002315:971D13; 0.023150:090A08 | 0.8 | 0 | - | - |
PA0
Accumulated precipitation |
0:00000000; 0.1:C8969600; 0.2:9696AA00; 0.5:7878BE19; 1:6E6ECD33; 10:5050E1B2; 140:1414FFE5 | 0.6 | 0 | - | - |
PAR0
Accumulated precipitation - rain |
0:E1C86400; 0.1:C8963200; 0.2:9696AA00; 0.5:7878BE00; 1:6E6ECD4C; 10:5050E1B2; 140:1414FFE5 | 0.6 | 0 | - | - |
PAS0
Accumulated precipitation - snow |
0:00000000; 5:00D8FFFF; 10:00B6FFFF; 25.076:9549FF | 0.7 | 0 | - | - |
SD0
Depth of snow |
0.05:EDEDED; 0.1:D9F0F4; 0.2:A5E5EF; 0.3:7DDEED; 0.4:35D2EA; 0.5:00CCE8; 0.6:706DCE; 0.7:514FCC; 0.8:3333CC; 0.9:1818CC; 1.2:C454B7; 1.5:C12CB0; 1.8:BF00A8; 2.5:85408C; 3.0:7F2389; 4.0:790087; 15:E80068 | 0.8 | 0 | - | - |
WS10
Wind speed at an altitude of 10 meters |
1:FFFFFF00; 5:EECECC66; 15:B364BCB3; 25:3F213BCC; 50:744CACE6; 100:4600AFFF; 200:0D1126FF | 0.6 | 0 | - | - |
WND
Joint display of speed wind (color) and wind direction (arrows) |
1:FFFFFF00; 5:EECECC66; 15:B364BCB3; 25:3F213BCC; 50:744CACE6; 100:4600AFFF; 200:0D1126FF | 0.6 | 0 | 0 | 32 |
APM
Atmospheric pressure on mean sea level |
94000:0073FF; 96000:00AAFF; 98000:4BD0D6; 100000:8DE7C7; 101000:B0F720; 102000:F0B800; 104000:FB5515; 106000:F3363B; 108000:C60000 | 0.4 | 1 | - | - |
TA2
Air temperature at a height of 2 meters |
-65:821692; -55:821692; -45:821692; -40:821692; -30:8257DB; -20:208CEC; -10:20C4E8; 0:23DDDD; 10:C2FF28; 20:FFF028; 25:FFC228; 30:FC8014 | 0.3 | 1 | - | - |
TD2
Temperature of a dew point |
-65:821692; -55:821692; -45:821692; -40:821692; -30:8257DB; -20:208CEC; -10:20C4E8; 0:23DDDD; 10:C2FF28; 20:FFF028; 25:FFC228; 30:FC8014 | 0.3 | 1 | - | - |
TS0
Soil temperature 0-10 сm |
203.15:491763; 228.15:4E1378; 235.15:514F9B; 239.15:446DA9; 243.15:5C85B7; 247.15:739FC5; 251.15:88A7C9; -255.15:6CBCD4; 259.15:87CADC; 263.15:A7D8E5; 267.15:A7D5AD; 271.15:D2E9C8; 275.15:FEFEBB; 279.15:F5CEBB; 283.15:F2B68A; 287.15:EE934F; 291.15:EB702D; 295.15:E8706E; 303.15:CC2C44; 313.15:CC0000; 323.15:990000 | 0.8 | 1 | - | - |
TS10
Soil temperature >10 сm |
203.15:491763; 228.15:4E1378; 235.15:514F9B; 239.15:446DA9; 243.15:5C85B7; 247.15:739FC5; 251.15:88A7C9; -255.15:6CBCD4; 259.15:87CADC; 263.15:A7D8E5; 267.15:A7D5AD; 271.15:D2E9C8; 275.15:FEFEBB; 279.15:F5CEBB; 283.15:F2B68A; 287.15:EE934F; 291.15:EB702D; 295.15:E8706E; 303.15:CC2C44; 313.15:CC0000; 323.15:990000 | 0.8 | 0 | - | - |
HRD0
Relative humidity |
0:db1200; 20:965700; 40:ede100; 60:8bd600; 80:00a808; 100:000099; 100.1:000099 | 0.8 | 1 | - | - |
CL
Cloudiness |
0:FFFFFF00; 10:FDFDFF19; 20:FCFBFF26; 30:FAFAFF33; 40:F9F8FF4C; 50:F7F7FF66; 60:F6F5FF8C; 70:F4F4FFBF; 80:E9E9DFCC; 90:DEDEDED8; 100:D2D2D2FF; 200:D2D2D2FF | 0.5 | 0 | - | - |
Libraries to connect weather layers
Open Layers
The following functions are available for the OpenLayers library:
- Classes of weather layer and weather stations layer
- Possibility to set your own style
- Classes with clustered markers
- Support of marker server clustering
Leaflet
The OpenWeatherMap javascript library is designed to work with the Leaflet mapping service. The current version of the library allows the following:
- Embedding of layer with current weather in cities
- Embedding of layer with weather stations
- The library supports customer clustering
Leaflet library
Another implementation of map based on Leaflet technology supports OWM's TileLayers and current
city/station data. It is configurable with many options. For current city/station data the library
supports refreshing the data in intervals, some types of client-side clustering (show only the
station/city with the highest rank for a defined pixel square), custom image set (if you provide one),
different languages (en
, de
, ru
, fr
, but translation
is incomplete), minZoom
and others.
Source and documentation (README.md) is available on GitHub https://github.com/buche/leaflet-openweathermap
Example of weather map: https://github.com/owm-inc/VANE-intro/tree/master/apps