Key:seasonal

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seasonal
Description
Describes features that depend on seasonal conditions Show/edit corresponding data item.
Group: properties
Used on these elements
may be used on nodesmay be used on waysmay be used on areas (and multipolygon relations)may be used on relations
See also
Status: de facto

Used to denote features whose presence, usability or operation varies by season.

In most common usage, specific values indicate the season(s) during which the feature is typically present, active or usable, without explicitly defining its state in other seasons. For example, a drinking fountain with seasonal=summer is typically available during summer, an outdoor sports pitch for sport=ice_skating with seasonal=winter is typically usable during winter, and a river with seasonal=wet_season typically contains water during the wet season.

The key is used for many different types of features, including natural features, infrastructure, and amenities. Wetlands can dry out in the summer, ponds can disappear entirely in hot weather and rural roads might close or become impassable from the first snow until thaw. This tag is also used for benches, picnic tables and other amenities that are not available during winter.

For a more precise representation, use opening_hours=* for amenities like shops, grocers, farmer's markets or marketplaces, and conditional restrictions for signposted or explicitly defined seasonal access restrictions like for roads blocked or inaccessible in certain months, whenever this information is available.

Values

Value Description
seasonal=yes The feature is seasonal, but no specific season is specified.
seasonal=no The feature is not seasonal. Useful for clarity where seasonality may be expected, for example a road that is not seasonal in an area with many seasonal roads.
seasonal=(spring/summer/autumn/winter/wet_seasondry_season) The feature is typically present, active, or usable during the specified season. Multiple seasons may be specified using a semicolon (;). Note that OSM uses British English, so it is autumn, not fall.

Relation to intermittent

intermittent=yes marks (usually water-based) features as non-permanent. When seasonal=* is not no, it suggests itself to imply that intermittent=* is yes, so there is an obvious overlap with this tag.

intermittent=* however has been in use for longer and is 10x as popular as this tag (as of 2022-04), so it is more likely to be used and supported by data consumers. This will be the reason why as of 2022-04, about 60% of elements tagged with seasonal=* are also tagged with intermittent=*.

Associated features

Possible tagging mistakes

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See also