(Image taken from Yaga's "WurmClock V3", by courtesy of [http://www.wurmpedia.com/index.php/Player:Yaga Yaga].)
====Weather/Meteorology====
Having 4 seasons (as noted above) means a lot of weather changes. There is no patterns to the weather other than snow is always during winter. Wind is also a unpredictable change but seems to follow the same direction on multiple servers, time span for wind changes also varies.
*'''[[Wind]]''' Only affects boats, can help or hurt the speed if the player if facing/following the [[wind]].
:* Finding [[wind]] direction is easy, '''In game''' use /weather or on '''Official wurm Discord''' use !weather
*'''[[Rain]]''' Strictly visual as the water level is a set depth. Rainbows can occur during this time
:* With [[Sorcery]], [[Rain]] can be summoned using the lightning spell
*'''Lightning''' Visual during rain and also has a unique function on players.
:* In Players event tab, this could happen ''YOU ARE HIT BY LIGHTNING! OUCH! A strange dizziness runs through your head, eventually sharpening your senses.''
:* Mind Speed will increase drastically(3.0+), the down side is all equipped armor/weapons will have 20 damage on them. The Chances of getting hit are rare.
::*0.000024% chance on 2k servers (Deliverance, Exodus, Pristine, Release)
::*0.000006% chance on 4k servers (Independence)
::*0.0000015% chance on 8k servers (Xanadu)
*'''Snow''' changes the visual terrain to white, main purpose is to make [[Snowball]]s to throw or use in a [[larder]] to keep food from decaying as fast.
*'''[[Fog]]''' Was rumored that [[Fog Spider]]s predicted this, however they do spawn during this time. [[Fog]] is only server wide and not on the cluster like wind
*'''Day/Night''' With a day and night cycle, the distance seen can vary. all weather types can happen at any part of the day, [[Moons]] can also been seen at different times also.