diff --git a/paper-api/src/main/java/io/papermc/paper/event/entity/CopperGolemWeatheringEvent.java b/paper-api/src/main/java/io/papermc/paper/event/entity/CopperGolemWeatheringEvent.java
new file mode 100644
index 000000000000..5500c0569120
--- /dev/null
+++ b/paper-api/src/main/java/io/papermc/paper/event/entity/CopperGolemWeatheringEvent.java
@@ -0,0 +1,106 @@
+package io.papermc.paper.event.entity;
+
+import io.papermc.paper.world.WeatheringCopperState;
+import org.bukkit.entity.CopperGolem;
+import org.bukkit.entity.Entity;
+import org.bukkit.entity.Player;
+import org.bukkit.event.Cancellable;
+import org.bukkit.event.HandlerList;
+import org.bukkit.event.entity.EntityEvent;
+import org.jetbrains.annotations.NotNull;
+import org.jetbrains.annotations.Nullable;
+
+/**
+ * Called when a Copper Golem's Weathering State changes.
+ */
+public class CopperGolemWeatheringEvent extends EntityEvent implements Cancellable {
+
+    private static final HandlerList HANDLER_LIST = new HandlerList();
+    private final WeatheringCopperState weatheringCopperState;
+    private final WeatheringCopperState previousWeatheringCopperState;
+    private final Reason reason;
+    private final Player player;
+    private boolean cancelled;
+
+    public CopperGolemWeatheringEvent(final @NotNull Entity entity, final @NotNull WeatheringCopperState weatheringCopperState, final @NotNull WeatheringCopperState previousWeatheringCopperState, final @NotNull Reason reason, final @Nullable Player player) {
+        super(entity);
+        this.weatheringCopperState = weatheringCopperState;
+        this.previousWeatheringCopperState = previousWeatheringCopperState;
+        this.reason = reason;
+        this.player = player;
+    }
+
+    /**
+     * Gets the new copper golem's weathering state
+     * @return new weathering state
+     * @see CopperGolem#getWeatheringState()
+     */
+    @NotNull
+    public WeatheringCopperState getWeatheringCopperState() {
+        return this.weatheringCopperState;
+    }
+
+    /**
+     * Gets the previous copper golem's weathering state
+     * @return previous weathering state
+     * @see CopperGolem#getWeatheringState()
+     */
+    @NotNull
+    public WeatheringCopperState getPreviousWeatheringCopperState() {
+        return this.previousWeatheringCopperState;
+    }
+
+    /**
+     * Gets the reason for the weathering change.
+     *
+     * @return the reason
+     */
+    @NotNull
+    public Reason getReason() {
+        return this.reason;
+    }
+
+    /**
+     * Gets the player involved in the weathering change, if applicable.
+     *
+     * @return the player or null
+     */
+    @Nullable
+    public Player getPlayer() {
+        return this.player;
+    }
+
+    @Override
+    @NotNull
+    public CopperGolem getEntity() {
+        return (CopperGolem) super.getEntity();
+    }
+
+    @Override
+    public boolean isCancelled() {
+        return this.cancelled;
+    }
+
+    @Override
+    public void setCancelled(final boolean cancel) {
+        this.cancelled = cancel;
+    }
+
+    @Override
+    @NotNull
+    public HandlerList getHandlers() {
+        return HANDLER_LIST;
+    }
+
+    @NotNull
+    public static HandlerList getHandlerList() {
+        return HANDLER_LIST;
+    }
+
+    public enum Reason {
+        NATURAL,
+        AXE,
+        LIGHTNING,
+        OTHER
+    }
+}
diff --git a/paper-server/patches/sources/net/minecraft/world/entity/animal/golem/CopperGolem.java.patch b/paper-server/patches/sources/net/minecraft/world/entity/animal/golem/CopperGolem.java.patch
index 51f378361e74..85d76f3735fa 100644
--- a/paper-server/patches/sources/net/minecraft/world/entity/animal/golem/CopperGolem.java.patch
+++ b/paper-server/patches/sources/net/minecraft/world/entity/animal/golem/CopperGolem.java.patch
@@ -37,6 +37,40 @@
                  this.gameEvent(GameEvent.SHEAR, player);
                  itemInHand.hurtAndBreak(1, player, hand);
              }
+@@ -242,6 +_,14 @@
+             if (itemInHand.is(ItemTags.AXES)) {
+                 WeatheringCopper.WeatherState weatherState = this.getWeatherState();
+                 if (weatherState != WeatheringCopper.WeatherState.UNAFFECTED) {
++                    // Paper start - CopperGolemWeatheringEvent
++                    io.papermc.paper.world.WeatheringCopperState currentState = io.papermc.paper.world.WeatheringCopperState.valueOf(weatherState.name());
++                    io.papermc.paper.world.WeatheringCopperState nextState = io.papermc.paper.world.WeatheringCopperState.valueOf(weatherState.previous().name());
++                    io.papermc.paper.event.entity.CopperGolemWeatheringEvent event = new io.papermc.paper.event.entity.CopperGolemWeatheringEvent(this.getBukkitEntity(), nextState, currentState, io.papermc.paper.event.entity.CopperGolemWeatheringEvent.Reason.AXE, (org.bukkit.entity.Player) player.getBukkitEntity());                    if (!event.callEvent()) {
++                        return InteractionResult.PASS;
++                    }
++                    // Paper end - CopperGolemWeatheringEvent
++
+                     level.playSound(null, this, SoundEvents.AXE_SCRAPE, this.getSoundSource(), 1.0F, 1.0F);
+                     level.levelEvent(this, LevelEvent.PARTICLES_SCRAPE, this.blockPosition(), 0);
+                     this.nextWeatheringTick = -1L;
+@@ -264,6 +_,18 @@
+                 boolean flag = weatherState.equals(WeatheringCopper.WeatherState.OXIDIZED);
+                 if (gameTime >= this.nextWeatheringTick && !flag) {
+                     WeatheringCopper.WeatherState weatherState1 = weatherState.next();
++
++                    // Paper start - CopperGolemWeatheringEvent
++                    io.papermc.paper.world.WeatheringCopperState currentState = io.papermc.paper.world.WeatheringCopperState.valueOf(weatherState.name());
++                    io.papermc.paper.world.WeatheringCopperState nextState = io.papermc.paper.world.WeatheringCopperState.valueOf(weatherState1.name());
++                    io.papermc.paper.event.entity.CopperGolemWeatheringEvent event = new io.papermc.paper.event.entity.CopperGolemWeatheringEvent(this.getBukkitEntity(), nextState, currentState, io.papermc.paper.event.entity.CopperGolemWeatheringEvent.Reason.NATURAL, null);
++
++                    if (!event.callEvent()) {
++                        this.nextWeatheringTick = gameTime + random.nextIntBetweenInclusive(504000, 552000);
++                        return;
++                    }
++                    // Paper end - CopperGolemWeatheringEvent
++
+                     boolean flag1 = weatherState1.equals(WeatheringCopper.WeatherState.OXIDIZED);
+                     this.setWeatherState(weatherState1);
+                     this.nextWeatheringTick = flag1 ? 0L : this.nextWeatheringTick + random.nextIntBetweenInclusive(504000, 552000);
 @@ -282,20 +_,27 @@
  
      private void turnToStatue(ServerLevel level) {
@@ -124,3 +158,18 @@
      }
  
      @Override
+@@ -457,6 +_,14 @@
+             this.lastLightningBoltUUID = uuid;
+             WeatheringCopper.WeatherState weatherState = this.getWeatherState();
+             if (weatherState != WeatheringCopper.WeatherState.UNAFFECTED) {
++                // Paper start - CopperGolemWeatheringEvent
++                io.papermc.paper.world.WeatheringCopperState currentState = io.papermc.paper.world.WeatheringCopperState.valueOf(weatherState.name());
++                io.papermc.paper.world.WeatheringCopperState nextState = io.papermc.paper.world.WeatheringCopperState.valueOf(weatherState.previous().name());
++                io.papermc.paper.event.entity.CopperGolemWeatheringEvent event = new io.papermc.paper.event.entity.CopperGolemWeatheringEvent(this.getBukkitEntity(), nextState, currentState, io.papermc.paper.event.entity.CopperGolemWeatheringEvent.Reason.LIGHTNING, null);
++                if (!event.callEvent()) {
++                    return;
++                }
++                // Paper end - CopperGolemWeatheringEvent
+                 this.nextWeatheringTick = -1L;
+                 this.entityData.set(DATA_WEATHER_STATE, weatherState.previous(), true);
+             }