diff --git a/CHANGELOG.md b/CHANGELOG.md
index 3be04918..d5127763 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -3,6 +3,7 @@
 ### Bug Fixes
 1. [#375](https://github.com/influxdata/influxdb-client-python/pull/375): Construct `InfluxDBError` without HTTP response 
 1. [#378](https://github.com/influxdata/influxdb-client-python/pull/378): Correct serialization DataFrame with nan values [DataFrame]
+1. [#384](https://github.com/influxdata/influxdb-client-python/pull/384): Timeout can be specified as a `float`
 
 ### CI
 1. [#370](https://github.com/influxdata/influxdb-client-python/pull/370): Add Python 3.10 to CI builds
diff --git a/influxdb_client/rest.py b/influxdb_client/rest.py
index 8fc5e53a..df7b474f 100644
--- a/influxdb_client/rest.py
+++ b/influxdb_client/rest.py
@@ -161,7 +161,7 @@ def request(self, method, url, query_params=None, headers=None,
         timeout = None
         _configured_timeout = _request_timeout or self.configuration.timeout
         if _configured_timeout:
-            if isinstance(_configured_timeout, (int, ) if six.PY3 else (int, long)):  # noqa: E501,F821
+            if isinstance(_configured_timeout, (int, float, ) if six.PY3 else (int, long, float, )):  # noqa: E501,F821
                 timeout = urllib3.Timeout(total=_configured_timeout / 1_000)
             elif (isinstance(_configured_timeout, tuple) and
                   len(_configured_timeout) == 2):
diff --git a/tests/test_InfluxDBClient.py b/tests/test_InfluxDBClient.py
index 94efcf77..975978a2 100644
--- a/tests/test_InfluxDBClient.py
+++ b/tests/test_InfluxDBClient.py
@@ -4,10 +4,11 @@
 import threading
 import unittest
 
-from urllib3.exceptions import NewConnectionError
+import pytest
+from urllib3.exceptions import NewConnectionError, HTTPError
 
 from influxdb_client import InfluxDBClient, Point
-from influxdb_client.client.write_api import WriteOptions, WriteType
+from influxdb_client.client.write_api import WriteOptions, WriteType, SYNCHRONOUS
 from tests.base_test import BaseTest
 
 
@@ -166,6 +167,14 @@ def test_write_context_manager(self):
         self.assertIsNone(api_client._pool)
         self.assertIsNone(self.client.api_client)
 
+    def test_timeout_as_float(self):
+        self.client = InfluxDBClient(url="http://localhost:8088", token="my-token", org="my-org", timeout=1000.5)
+        self.assertEqual(1000.5, self.client.api_client.configuration.timeout)
+        with pytest.raises(HTTPError) as e:
+            write_api = self.client.write_api(write_options=SYNCHRONOUS)
+            write_api.write(bucket="my-bucket", org="my-org", record="mem,tag=a value=1")
+        self.assertIn("Failed to establish a new connection", str(e.value))
+
 
 class InfluxDBClientTestIT(BaseTest):
     httpRequest = []