Vaisala Weather Symbols

Vaisala Weather Symbols and Codes

Vaisala uses weather codes and symbols as a part of weather data feeds and APIs to provide an easy way to visualize weather conditions in a single image. See the mapping between weather codes and symbols below. The letter (d and n) distinguishes day and night symbols, while each number indicates cloudiness, precipitation rate and precipitation type. For example: d220 indicates daytime, half cloudy, showers, rain.

First number: cloudiness

0 clear
1 almost clear
2 half cloudy
3 broken
4 overcast
5 thin high clouds
6 fog

Second number: precipitation rate

0 no precipitation
1 slight precipitation
2 showers
3 precipitation
4 thunder

Last number: precipitation type

0 rain
1 sleet
2 snow

Symbol Codes

Mouse over the text codes to see the explanation. Pictures are provided only for some of the codes; nonsensical combinations do not have standard text descriptions. We suggest only using the codes with symbols provided in any end-user services.