Matching weather forecasts with photographs is conducted based on the following.
Place on the weather page and place where the photo was taken
Day of the weather forecast and a photo taken on another day within roughly one month of the day in question
Weather from the weather forecast and the weather at the time the photo was posted
Long-sized photos with 1,600px or more
In the event of multiple applicable photographs, the photograph with the most ratings from users is displayed
If there are no applicable photographs in weawow, a 500px image is displayed taking into consideration the place and the weather.
If there are no applicable 500px images available, a general image is selected from those posted to weawow by an operator with no association to the place and is displayed matched with the weather.
The image displayed for a year's weather at a given place is displayed based on having the most user ratings.
The image displayed for a month's weather at a given place and a given time period is displayed based on having the most user ratings.
The method used to match weather and photographs is subject to change without notice.