Sunlight Alignment Tweak - Better Dawn and Dusk
⚪ Last updated 2021⚠️ Install Order · 2 steps
Install in this order, then this mod last — most mods fail to load without their framework and dependencies in place.
Preview

🔍 Analysis
- 👍 0.7% endorsement rate
- 🏆 #16 of 76 Visuals and Graphics mods in this game by downloads
📋 About This Mod
Terrain Undersides - 2 Million Sunblocks
By Sheson and AetherSeraph9 fixes the issue with light shining through terrain. Please download their fix!
(also I recommend you disable Sunlight Fade in my mod entirely, as that was just a workaround for the issue that looks awful and impacts performance.)
There is a new version: Version 2!
In this version you can customize various options regarding sunlight fade times and the minimum angle at which to render the world lighting using the
Mod Configuration Menu!
You must completely uninstall the previous version by following the UNINSTALL instructions below, create a "clean save", then install the latest version.
The older version of the mod is still available in the Downloads section, titled: "Sunlight Alignment Tweak - Classic"
There is also a barebones version that is exactly the same as the PS4 version: "Sunlight Alignment Tweak - Basic"
This version only includes the alignment tweak and does not require any DLC, MCM or F4SE.
DESCRIPTION
Aligns the exterior world lighting with the sun and moon and allows the game to cast shadows at shallower angles. Includes a script that automatically reduces shadow intensity at sunrise and sunset for a more realistic environment.
This mod essentially does for Fallout 4 what this mod did for Skyrim/SSE.
REQUIREMENTS
The Newest Version Requires F4SE and MCM (if you wish to customize settings).
The Classic version of the mod only requires Far Harbor and Nuka World DLCs, nothing else.
The Basic version only requires the basic game.
INSTALLATION
Simply download and install with your mod manager of choice.Place SunLightAlignment.esp as low in your load order as possible, even below your weather mods.
UNINSTALL
1. Go inside of an interior and wait for at least one real-world minute.
2. Save and Quit. Then uninstall the mod with your mod manager.
3. Done, resume playing.
CAVEATS
Unfortunately unlike Skyrim, the Sun lighting in Fallout 4 is not occluded by mountains and terrain, so there may be areas where god rays will clip through hills and mountain ranges.
In fact the main reason there is a script to reduce the shadow intensity at dawn and dusk is to remove visual glitches where the sun casts shadows from objects while it is behind a hill or mountain range.
Nevertheless, th
Sunlight Alignment Tweak - Better Dawn and Dusk is a visual mod for Fallout 4 that aligns exterior lighting with the sun and moon, enabling shallower shadow angles. It includes a script to reduce shadow intensity at sunrise and sunset for more realistic lighting. Popular with 4,112 endorsements and 548,293 downloads.
✨ Key Features
📊 Pros & Cons
✅ Pros
- Huge community trust: 4,112 endorsements and over half a million downloads
- Simple, focused tweak that improves dawn and dusk lighting without overhauling the whole game
- Script-based shadow reduction adds realism without manual adjustment
⚠️ Cons
- Last updated in January 2021 — may not be tested with the latest Fallout 4 patches or DLC
- Only affects exterior lighting; interior spaces and weather mods may override its effects
For Fallout 4 players who want more realistic lighting at dawn and dusk without a full visual overhaul. Ideal for screenshot enthusiasts and immersive wanderers. Skip if you prefer dramatic, stylized lighting or use heavy weather mods that might conflict.
💡 Beginner Tips
- Since it's a simple ESP/ESL, place it near the end of your load order to ensure it overrides other lighting mods.
- If you use a mod manager like Vortex or MO2, deploy and enable the mod, then check for conflicts with other lighting mods.
- Test at in-game sunrise (around 6-7 AM) and sunset (6-7 PM) to see the shadow intensity changes.
📊 Mod Details
- Game
- Fallout 4 Mods
- Author
- falloutkid12
- Version
- 2.1
- Downloads
- 548,293
- Endorsements
- 4,112
- Category
- Visuals and Graphics
- Created
- 1/23/2021
- Updated
- 1/28/2021
🔧 How to Install Fallout 4 Mods
Download from Nexus.
📖 Full step-by-step install guide for Fallout 4 →
Visit the official mod page for specific installation instructions for this mod.
🎮 Need cheat codes or console commands? Check ur gaming wiki for Fallout 4 commands, item IDs, and more.
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