diff --git a/homeassistant/components/solarlog/diagnostics.py b/homeassistant/components/solarlog/diagnostics.py
new file mode 100644
index 00000000000..02f6c96edc2
--- /dev/null
+++ b/homeassistant/components/solarlog/diagnostics.py
@@ -0,0 +1,27 @@
+"""Provides diagnostics for Solarlog."""
+
+from __future__ import annotations
+
+from typing import Any
+
+from homeassistant.components.diagnostics import async_redact_data
+from homeassistant.const import CONF_HOST
+from homeassistant.core import HomeAssistant
+
+from . import SolarlogConfigEntry
+
+TO_REDACT = [
+    CONF_HOST,
+]
+
+
+async def async_get_config_entry_diagnostics(
+    hass: HomeAssistant, config_entry: SolarlogConfigEntry
+) -> dict[str, Any]:
+    """Return diagnostics for a config entry."""
+    data = config_entry.runtime_data.data
+
+    return {
+        "config_entry": async_redact_data(config_entry.as_dict(), TO_REDACT),
+        "solarlog_data": data.to_dict(),
+    }
diff --git a/tests/components/solarlog/snapshots/test_diagnostics.ambr b/tests/components/solarlog/snapshots/test_diagnostics.ambr
new file mode 100644
index 00000000000..09ff3a333ee
--- /dev/null
+++ b/tests/components/solarlog/snapshots/test_diagnostics.ambr
@@ -0,0 +1,64 @@
+# serializer version: 1
+# name: test_entry_diagnostics
+  dict({
+    'config_entry': dict({
+      'data': dict({
+        'extended_data': True,
+        'host': '**REDACTED**',
+        'name': 'Solarlog test 1 2 3',
+      }),
+      'disabled_by': None,
+      'domain': 'solarlog',
+      'entry_id': 'ce5f5431554d101905d31797e1232da8',
+      'minor_version': 2,
+      'options': dict({
+      }),
+      'pref_disable_new_entities': False,
+      'pref_disable_polling': False,
+      'source': 'user',
+      'title': 'solarlog',
+      'unique_id': None,
+      'version': 1,
+    }),
+    'solarlog_data': dict({
+      'alternator_loss': 2.0,
+      'capacity': 85.5,
+      'consumption_ac': 54.87,
+      'consumption_day': 5.31,
+      'consumption_month': 758.0,
+      'consumption_total': 354687.0,
+      'consumption_year': 4587.0,
+      'consumption_yesterday': 7.34,
+      'efficiency': 98.1,
+      'inverter_data': dict({
+        '0': dict({
+          'consumption_year': 354687,
+          'current_power': 5,
+          'enabled': True,
+          'name': 'Inverter 1',
+        }),
+        '1': dict({
+          'consumption_year': 354,
+          'current_power': 6,
+          'enabled': True,
+          'name': 'Inverter 2',
+        }),
+      }),
+      'last_updated': '2024-08-01T15:20:45+00:00',
+      'power_ac': 100.0,
+      'power_available': 45.13,
+      'power_dc': 102.0,
+      'production_year': None,
+      'self_consumption_year': 545.0,
+      'total_power': 120.0,
+      'usage': 54.8,
+      'voltage_ac': 100.0,
+      'voltage_dc': 100.0,
+      'yield_day': 4.21,
+      'yield_month': 515.0,
+      'yield_total': 56513.0,
+      'yield_year': 1023.0,
+      'yield_yesterday': 5.21,
+    }),
+  })
+# ---
diff --git a/tests/components/solarlog/test_diagnostics.py b/tests/components/solarlog/test_diagnostics.py
new file mode 100644
index 00000000000..bc0b020462d
--- /dev/null
+++ b/tests/components/solarlog/test_diagnostics.py
@@ -0,0 +1,32 @@
+"""Test Solarlog diagnostics."""
+
+from unittest.mock import AsyncMock
+
+from syrupy import SnapshotAssertion
+from syrupy.filters import props
+
+from homeassistant.const import Platform
+from homeassistant.core import HomeAssistant
+
+from . import setup_platform
+
+from tests.common import MockConfigEntry
+from tests.components.diagnostics import get_diagnostics_for_config_entry
+from tests.typing import ClientSessionGenerator
+
+
+async def test_entry_diagnostics(
+    hass: HomeAssistant,
+    hass_client: ClientSessionGenerator,
+    mock_config_entry: MockConfigEntry,
+    mock_solarlog_connector: AsyncMock,
+    snapshot: SnapshotAssertion,
+) -> None:
+    """Test config entry diagnostics."""
+    await setup_platform(hass, mock_config_entry, [Platform.SENSOR])
+
+    result = await get_diagnostics_for_config_entry(
+        hass, hass_client, mock_config_entry
+    )
+
+    assert result == snapshot(exclude=props("created_at", "modified_at"))