Rain/Snow Server Sync
by alexkj101
Rain/Snow Server Sync is a Fabric client mod that makes precipitation match the biome temperatures a server sets at runtime.
What it does
Normally a Minecraft client decides whether a biome shows rain or snow by reading temperature data stored locally. When a server changes biome temperatures while the game runs, the client can keep showing rain in an area where the server treats it as cold enough for snow. The result is a visual mismatch between what the client draws and what the server simulates.
This mod changes the client so it uses the server's biome temperature values when drawing precipitation, instead of the defaults stored locally. Rain and snow then appear in the places the server considers cold or warm. The mod is client-side only, so the server and players who join without it see no difference in gameplay.
Installation needs Fabric on the client, and the mod is published for Fabric alone, with files for 1.21.8 only. It is released under All rights reserved and is not open source.
Key features
Server temperature sync
The client receives biome temperature overrides from the server and applies them to the precipitation it renders.
Dynamic biome updates
Temperature changes the server makes during play carry over to the client's precipitation visuals without a restart.
Accurate weather visuals
Rain and snow follow the biome the player is standing in, using the values the server has set for that biome.
Gallery
Compatibility
Latest build for each game version and loader.
Only full game releases are shown. This mod publishes no snapshot builds.
Use cases
Servers with altered climates
A server that changes biome temperatures for its world can have those changes shown on every client running the mod.
Modded weather setups
Packs that alter temperatures at runtime can keep the visible rain and snow in step with their own rules.
Who it’s for: Players joining servers that modify biome temperatures at runtime, and server owners who want their precipitation to look consistent with those changes.
How it compares
Snow Melt is a server-side only Fabric mod for 1.21.11, under All rights reserved and not open source, so it changes the server and leaves clients untouched. SnowControl is a server-side only Fabric mod for 1.21.1 – 1.21.11 and is open source under the GNU Lesser General Public License v3.0 or later. VisualSky is a client-side only Fabric mod for 1.21.1 – 1.21.11, under All rights reserved and not open source, and it works on the client alone, while Rain/Snow Server Sync covers 1.21.8 only.
| Mod | Loaders | Game versions | Environment | Updated |
|---|---|---|---|---|
| Rain/Snow Server Sync | Fabric | 1.21.8 | Client-side only | 2026-08-15 |
| Snow Melt | Fabric | 1.21.11 | Server-side only | 2026-01-29 |
| SnowControl | Fabric | 1.21.1 – 1.21.11 | Server-side only | 2026-03-31 |
| VisualSky | Fabric | 1.21.1 – 1.21.11 | Client-side only | 2026-07-04 |
Questions
Does Rain/Snow Server Sync need to be installed on the server?
Which loader does Rain/Snow Server Sync support?
Can the mod be used on Minecraft versions other than 1.21.8?
In the catalog
Rain/Snow Server Sync is one of 29,952 Game mechanics mods on ModsFinder, and one of 19,630 Game mechanics mods for Fabric. 17,695 mods support Minecraft 1.21.8.
Similar mods
What the author says
This client side mod syncs rain and snow rendering with the server's biome temperature values rather than using the default biome temperature values. Normally, Minecraft clients determine rain and snow using the biome temperature information stored locally. This can cause visual inconsistencies on servers that…
Official listing
- Modrinth page
- modrinth.com/mod/rainsnow-server-sync
- Owner
- alexkj101
- Published
- 2026-08-15
- Updated on Modrinth
- 2026-08-15
- Facts verified
- 2026-10-15