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September Weather in Sishui, China

Last updated: August 22, 2025

In Sishui, China, the average temperature in September hovers around 22°C (72°F), with lows dipping to 11°C (53°F) and highs reaching up to 32°C (90°F). Expect about 78 mm (3.1 in) of precipitation spread over 6 days, contributing to an average humidity of 68%. Perfect for those who enjoy a mild climate with a hint of moisture!

September Temperature in Sishui

In September in Sishui, the average temperature is 22°C (72°F), with maximums reaching 32°C (90°F) and minimums dipping as low as 11°C (53°F). This comfortable climate makes it an ideal destination for travelers seeking pleasant weather.

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

The chart illustrates September temperature patterns in Sishui, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Sishui, September typically has an average temperature of 22°C (72°F), with highs reaching up to 32°C (90°F) and lows dropping to around 11°C (53°F).
JanFebMarAprMayJunJulAugSepOctNovDec323749597078817972594835
Data source: Temperature data for Sishui 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 Sishui

In Sishui in September, the precipitation amount is 78 mm (3.1 in) spread over 6 days.

September Precipitation Trends in Sishui

The chart displays monthly precipitation patterns in Sishui, 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 Sishui, September typically receives around 78 mm (3.1 inches) of precipitation spread over approximately 6 days.
JanFebMarAprMayJunJulAugSepOctNovDec13202436499018021578303410
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Sishui

In Sishui in September humidity is 68%. With an average temperature of 22°C (72°F), this humidity feels like a warm embrace, slightly stifling but still manageable for traveling, creating an atmosphere that encourages leisurely outdoor activities while prompting occasional breaks for refreshment.

September Average Humidity in Sishui

This chart illustrates the average monthly humidity levels in Sishui, 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 Sishui is approximately 68%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec53%63%70%77%73%73%85%83%68%72%81%72%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Sishui

In Sishui in September, the maximum UV index is 9, which corresponds to a very high Exposure Category. The time to burn is just 15 minutes, so it's essential to take precautions. For detailed information, you can check the Hourly UV Index in Sishui.

Maximum UV Index Levels in Sishui for September

The chart shows the monthly maximum UV Index (UVI) for Sishui 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 Sishui typically reaches 9, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec356891110109743
Data source: Sishui 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 Sishui Compares to Other Months

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

This table compares monthly weather conditions in Sishui, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather0°C (32°F)13 mm (0.5 inches)53%moderate
February Weather3°C (38°F)20 mm (0.8 inches)63%moderate
March Weather10°C (50°F)24 mm (1.0 inches)70%high
April Weather15°C (59°F)36 mm (1.4 inches)77%very high
May Weather21°C (70°F)49 mm (1.9 inches)73%very high
June Weather26°C (78°F)90 mm (3.6 inches)73%extreme
July Weather27°C (81°F)180 mm (7.1 inches)85%very high
August Weather26°C (80°F)215 mm (8.5 inches)83%very high
September Weather22°C (72°F)78 mm (3.1 inches)68%very high
October Weather15°C (59°F)30 mm (1.2 inches)72%high
November Weather9°C (48°F)34 mm (1.4 inches)81%moderate
December Weather2°C (35°F)10 mm (0.4 inches)72%moderate

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