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Weather is a feature of Cities: Skylines which has been expanded on with After Dark and Snowfall. The cities are exposed to the diurnal cycle of days and nights in addition to common weather types. Several weather types also accompany the Disasters introduced in Natural Disasters.

Regular weather can be enabled/disabled in the OPTIONS menu, in the GAMEPLAY subcategory. "Use Dynamic Weather".

"Natural Disasters" weather can also be enabled/disabled in the OPTIONS menu, in the GAMEPLAY subcategory. "Use Random Disasters". This does not affect disasters built into Scenarios.


When the sun sets in Cities: Skylines then the street lights come on and buildings are illuminated. There will also be less wind during this time. The Solar power plant will only produce 70% of daytime output.[1] This means that a city will not be able to rely purely on solar power but will need additional power options to make up for the lost power, although boosting the Night time budget for electricity in the Budget Panel might be adequate in some cities. The commercial areas that have a Leisure designation will continue to be active throughout the night, unless the NIMBY policy is activated.

The day/night cycle can be enabled or disabled (daytime only) in the OPTIONS menu, in the GAMEPLAY subcategory. "Use Day/Night Cycle". Turning it off can be helpful when building, as it is easier to see during the daytime. There is also a slider to adjust "Mouse light intensity during night", which adds illumination around the mouse pointer.


Rain is accompanied by clouds and in some cases thunder. In rare cases, a lighting bolt can strike down a power pole in a city. Rainfall will cause a reduction in solar power and the lull that follows rain will reduce windspeed and impact power from turbines.


Snow is a feature of Snowfall and can bring a well functioning city to a halt. Like rain the cloud cover and drop in windspeed can alter power supplies. In addition frozen roads cause traffic to slow and regular patrols by snow ploughs is needed. The collected snow is held at Snow dumps until melted.

Snow will only fall on winter themed maps, as Cities Skylines does not support changing seasons.[2][3]


Fog is rarer than rain or snow but like both can reduce the effectiveness of solar power sources such as the solar plant and advanced wind turbine.


Main article: Disasters

Thunderstorms generally cover a large area of the city, and are a natural disaster as opposed to the regular weather. Lightning strikes on electricity distribution towers may destroy them, blacking out parts of the city. Lightning strikes on buildings may start structure fires. To lower the likelihood of buildings catching fire during a thunderstorm, use the "Lightning Rods" policy. Lightning strikes in wooded areas may trigger forest fires.


Main article: Disasters

Tornadoes can cause a lot of destruction in the immediate vicinity of the storm, and are a natural disaster as opposed to the regular weather.