diff --git a/airbyte-integrations/connectors/destination-snowflake/metadata.yaml b/airbyte-integrations/connectors/destination-snowflake/metadata.yaml
index e97958d104b0..efb1ec91fec5 100644
--- a/airbyte-integrations/connectors/destination-snowflake/metadata.yaml
+++ b/airbyte-integrations/connectors/destination-snowflake/metadata.yaml
@@ -5,7 +5,7 @@ data:
   connectorSubtype: database
   connectorType: destination
   definitionId: 424892c4-daac-4491-b35d-c6688ba547ba
-  dockerImageTag: 4.0.8
+  dockerImageTag: 4.0.9
   dockerRepository: airbyte/destination-snowflake
   documentationUrl: https://docs.airbyte.com/integrations/destinations/snowflake
   githubIssueLabel: destination-snowflake
diff --git a/airbyte-integrations/connectors/destination-snowflake/src/main/kotlin/io/airbyte/integrations/destination/snowflake/write/transform/SnowflakeValueCoercer.kt b/airbyte-integrations/connectors/destination-snowflake/src/main/kotlin/io/airbyte/integrations/destination/snowflake/write/transform/SnowflakeValueCoercer.kt
index 9d583679d04a..e5248a04f9b9 100644
--- a/airbyte-integrations/connectors/destination-snowflake/src/main/kotlin/io/airbyte/integrations/destination/snowflake/write/transform/SnowflakeValueCoercer.kt
+++ b/airbyte-integrations/connectors/destination-snowflake/src/main/kotlin/io/airbyte/integrations/destination/snowflake/write/transform/SnowflakeValueCoercer.kt
@@ -37,9 +37,9 @@ internal val FLOAT_MIN = BigDecimal("-9007199254740991")
 internal val FLOAT_RANGE = FLOAT_MIN..FLOAT_MAX
 
 // https://docs.snowflake.com/en/sql-reference/data-types-text#varchar
-internal const val VARCHAR_AND_VARIANT_LIMIT_BYTES = 134217728 // 128 MB
+internal const val VARCHAR_AND_VARIANT_LIMIT_BYTES = 16777216 // 16 MB
 // UTF-8 has max 4 bytes per char, so anything under this length is safe
-internal const val MAX_UTF_8_STRING_LENGTH_UNDER_LIMIT = 33554432 // (134217728 / 4)
+internal const val MAX_UTF_8_STRING_LENGTH_UNDER_LIMIT = 4194304 // (16777216 / 4)
 
 fun isValid(value: AirbyteValue): Boolean {
     return when (value) {
diff --git a/airbyte-integrations/connectors/destination-snowflake/src/test/kotlin/io/airbyte/integrations/destination/snowflake/write/transform/SnowflakeValueCoercerTest.kt b/airbyte-integrations/connectors/destination-snowflake/src/test/kotlin/io/airbyte/integrations/destination/snowflake/write/transform/SnowflakeValueCoercerTest.kt
index 13bbfffa282d..a759a48c268e 100644
--- a/airbyte-integrations/connectors/destination-snowflake/src/test/kotlin/io/airbyte/integrations/destination/snowflake/write/transform/SnowflakeValueCoercerTest.kt
+++ b/airbyte-integrations/connectors/destination-snowflake/src/test/kotlin/io/airbyte/integrations/destination/snowflake/write/transform/SnowflakeValueCoercerTest.kt
@@ -531,7 +531,7 @@ internal class SnowflakeValueCoercerTest {
     }
 
     @Test
-    fun testStringJustUnderSizeLimit() {
+    fun testStringAtExactSizeLimit() {
         val largeString = StringValue("a".repeat(VARCHAR_AND_VARIANT_LIMIT_BYTES))
         val airbyteValue =
             EnrichedAirbyteValue(
@@ -547,8 +547,8 @@ internal class SnowflakeValueCoercerTest {
     }
 
     @Test
-    fun testStringAtExactSizeLimit() {
-        // Test string at exactly the 33554432 character limit
+    fun testStringOverSizeLimit() {
+        // Test string at exactly the 16777216-character limit
         val exactLimitString = StringValue("a".repeat(VARCHAR_AND_VARIANT_LIMIT_BYTES + 1))
         val airbyteValue =
             EnrichedAirbyteValue(
@@ -561,7 +561,7 @@ internal class SnowflakeValueCoercerTest {
 
         // This should still be valid as each 'a' is 1 byte
         val result = coercer.validate(airbyteValue)
-        assertEquals(airbyteValue, result)
+        assertEquals(NullValue, result.abValue)
     }
 
     @Test
@@ -700,8 +700,8 @@ internal class SnowflakeValueCoercerTest {
     }
 
     @Test
-    fun testStringWithMultiByteCharactersNearLimit() {
-        // Test string with multi-byte UTF-8 characters
+    fun testStringWithMultiByteCharactersAtLimit() {
+        // Test string with multibyte UTF-8 characters
         // Each emoji is 4 bytes, so we need fewer characters to hit the limit
         val multiByteCount = MAX_UTF_8_STRING_LENGTH_UNDER_LIMIT
         val emojiString = StringValue("🎉".repeat(multiByteCount))
@@ -718,4 +718,24 @@ internal class SnowflakeValueCoercerTest {
         val result = coercer.validate(airbyteValue)
         assertEquals(airbyteValue, result)
     }
+
+    @Test
+    fun testStringWithMultiByteCharactersOverLimit() {
+        // Test string with multibyte UTF-8 characters
+        // Each emoji is 4 bytes, so we need fewer characters to hit the limit
+        val multiByteCount = MAX_UTF_8_STRING_LENGTH_UNDER_LIMIT
+        val emojiString = StringValue("🎉".repeat(multiByteCount) + 'a')
+
+        val airbyteValue =
+            EnrichedAirbyteValue(
+                abValue = emojiString,
+                type = StringType,
+                name = "emoji_string",
+                changes = mutableListOf(),
+                airbyteMetaField = null,
+            )
+
+        val result = coercer.validate(airbyteValue)
+        assertEquals(NullValue, result.abValue)
+    }
 }
diff --git a/docs/integrations/destinations/snowflake.md b/docs/integrations/destinations/snowflake.md
index 555de1563fc2..6389fbc1d0be 100644
--- a/docs/integrations/destinations/snowflake.md
+++ b/docs/integrations/destinations/snowflake.md
@@ -251,6 +251,7 @@ desired namespace.
 
 | Version         | Date       | Pull Request                                                     | Subject                                                                                                                                                                                |
 |:----------------|:-----------|:-----------------------------------------------------------------|:---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
+| 4.0.9           | 2025-10-10 | [67608](https://github.com/airbytehq/airbyte/pull/67608)         | Validate strings against correct length.                                                                                                                                               |
 | 4.0.8           | 2025-10-09 | [67599](https://github.com/airbytehq/airbyte/pull/67599)         | Improve handling of heavily interleaved streams.                                                                                                                                       |
 | 4.0.7           | 2025-10-09 | [67590](https://github.com/airbytehq/airbyte/pull/67590)         | Use GZIP compression level 5 to improve performance. No longer explicitly `CREATE FILE FORMAT`.                                                                                        |
 | 4.0.6           | 2025-10-09 | [67582](https://github.com/airbytehq/airbyte/pull/67582)         | Schema evolution supports dropping columns with lowercase characters in their name.                                                                                                    |