Day/Night Cycle & Weather System

A dynamic day/night cycle and weather system for Roblox with smooth transitions, realistic lighting, and a full weather simulation including rain, snow, fog, and storms.

Day/Night Cycle

• Configurable day length (real-time minutes per in-game day)
• Smooth sun/moon arc with accurate sky colors at dawn, noon, dusk, and night
• Dynamic ambient lighting that matches time of day
• Star field at night with moon phase simulation
• Configurable time speed multiplier
• Time sync across all players in server

Weather System

• Rain: Particle rain with puddle formation, wet surface materials, and thunder/lightning.
• Snow: Particle snow with accumulation on surfaces, footprint effects.
• Fog: Volumetric fog with configurable density and color.
• Storm: Combined rain, lightning, wind effects, and reduced visibility.
• Clear: Sunny weather with lens flare effect.

Weather Transitions

Smooth transitions between weather states. Configurable weather probability table for random weather changes. Or control weather manually via API: Weather:Set("storm", 30) — transition to storm over 30 seconds.