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September Weather in Annan, China

Last updated: August 22, 2025

In Annan, China, the average temperature in September hovers around 24°C (76°F). Expect a comfortable range, with minimums dipping to 13°C (55°F) and maximums soaring to 36°C (96°F). Be prepared for some rain, as 95 mm (3.7 in) of precipitation can fall over 13 days. The average humidity sits at a moderate 67%, adding a touch of warmth to your stay.

September Temperature in Annan

In September in Annan, the average temperature is 24°C (76°F), with maximums reaching 36°C (96°F) and minimums dropping to as low as 13°C (55°F). This pleasant climate makes Annan an ideal destination for travelers seeking both warmth and comfortable evenings.

September Weather in Annan: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Annan, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Annan, September typically has an average temperature of 24°C (76°F), with highs reaching up to 36°C (96°F) and lows dropping to around 13°C (55°F).
JanFebMarAprMayJunJulAugSepOctNovDec484956637075808076675849
Data source: Temperature data for Annan generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

September Precipitation in Annan

In Annan in September, the precipitation amount is 95 mm (3.7 in) over the course of 13 days.

September Precipitation Trends in Annan

The chart displays monthly precipitation patterns in Annan, with values for each month alongside September’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how September’s conditions compare to those of other months. In Annan, September typically receives around 95 mm (3.7 inches) of precipitation spread over approximately 13 days.
JanFebMarAprMayJunJulAugSepOctNovDec448816712922836714816295485937
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Annan

In Annan in September humidity is 67%. With an average temperature of 24°C (76°F), this humidity feels like a warm, steamy embrace, making travel slightly more challenging as you navigate through the thick air.

September Average Humidity in Annan

This chart illustrates the average monthly humidity levels in Annan, with September’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In September, average humidity in Annan is approximately 67%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec66%71%81%84%87%84%88%85%67%72%77%80%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Annan

In Annan in September, the maximum UV index reaches 11, which corresponds to an extreme Exposure Category. With a time to burn of just 10 minutes, it's essential to take precautions. For more details, you can check the Hourly UV Index in Annan.

Maximum UV Index Levels in Annan for September

The chart shows the monthly maximum UV Index (UVI) for Annan in September, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In September, the maximum UV index in Annan typically reaches 11, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec6811111213131311986
Data source: Annan September UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

  •  Extreme (11+): Avoid the sun, stay in shade.
  •  Very High (8-10): Limit sun exposure.
  •  High (6-7): Use SPF 30+ and protective clothing.
  •  Moderate (3-5): Midday shade recommended.
  •  Low (0-2): No protection needed.

How September Weather in Annan Compares to Other Months

Weather in Annan varies notably across the year, with each month offering distinct climate conditions. This page compares September’s weather to other months in Annan, focusing on differences in temperature, rainfall, humidity, and UV levels.

This table compares monthly weather conditions in Annan, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather9°C (48°F)44 mm (1.7 inches)66%high
February Weather9°C (49°F)88 mm (3.5 inches)71%very high
March Weather14°C (57°F)167 mm (6.6 inches)81%extreme
April Weather17°C (63°F)129 mm (5.1 inches)84%extreme
May Weather21°C (71°F)228 mm (9.0 inches)87%extreme
June Weather24°C (75°F)367 mm (14.5 inches)84%extreme
July Weather27°C (80°F)148 mm (5.8 inches)88%extreme
August Weather27°C (80°F)162 mm (6.4 inches)85%extreme
September Weather24°C (76°F)95 mm (3.7 inches)67%extreme
October Weather19°C (67°F)48 mm (1.9 inches)72%very high
November Weather15°C (58°F)58 mm (2.3 inches)77%very high
December Weather9°C (49°F)37 mm (1.5 inches)80%high

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