nomadseason

September Weather in Rui'an, China

Last updated: August 22, 2025

In September, the average temperature in Rui'an, China is a warm 27°C (80°F). Expect minimums around 20°C (69°F) and maximums peaking at 34°C (93°F). With 124 mm (4.9 in) of precipitation over the month, it rains on about 16 days, contributing to a notable average humidity of 78%. Enjoy the tropical vibes while staying prepared for the rain!

September Temperature in Rui'an

In September in Rui'an, the average temperature is 27°C (80°F), with maximums reaching 34°C (93°F) and minimums dropping to as low as 20°C (69°F). This mild and warm weather makes it an ideal destination for travelers seeking pleasant conditions to explore and relax.

September Weather in Rui'an: Daily Temperature Highs, Lows, and Averages

The chart illustrates September temperature patterns in Rui'an, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Rui'an, September typically has an average temperature of 27°C (80°F), with highs reaching up to 34°C (93°F) and lows dropping to around 20°C (69°F).
JanFebMarAprMayJunJulAugSepOctNovDec515157637278838480726454
Data source: Temperature data for Rui'an generated using information from the Copernicus Climate Change Service.
Choose your preferred temperature unit
The average of daily temperatures (24 hours) calculated across all days in the month.

September Precipitation in Rui'an

In Rui'an in September, the precipitation amount is 124 mm (4.9 in) occurring over a period of 16 days.

September Precipitation Trends in Rui'an

The chart displays monthly precipitation patterns in Rui'an, 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 Rui'an, September typically receives around 124 mm (4.9 inches) of precipitation spread over approximately 16 days.
JanFebMarAprMayJunJulAugSepOctNovDec54651161041452561712351241327953
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

September Humidity in Rui'an

In Rui'an in September, humidity is 78%. With an average temperature of 27°C (80°F), this humidity feels like a heavy blanket enveloping you, making travel feel more exhausting and sweat-inducing than usual.

September Average Humidity in Rui'an

This chart illustrates the average monthly humidity levels in Rui'an, 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 Rui'an is approximately 78%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec73%73%80%85%86%86%88%86%78%79%80%81%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Rui'an

In Rui'an 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 Rui'an.

Maximum UV Index Levels in Rui'an for September

The chart shows the monthly maximum UV Index (UVI) for Rui'an 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 Rui'an typically reaches 11, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec6810111212131211975
Data source: Rui'an 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 Rui'an Compares to Other Months

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

This table compares monthly weather conditions in Rui'an, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather10°C (51°F)54 mm (2.1 inches)73%high
February Weather10°C (51°F)65 mm (2.6 inches)73%very high
March Weather14°C (57°F)116 mm (4.6 inches)80%very high
April Weather17°C (64°F)104 mm (4.1 inches)85%extreme
May Weather22°C (72°F)145 mm (5.7 inches)86%extreme
June Weather25°C (78°F)256 mm (10.1 inches)86%extreme
July Weather29°C (84°F)171 mm (6.7 inches)88%extreme
August Weather29°C (84°F)235 mm (9.2 inches)86%extreme
September Weather27°C (80°F)124 mm (4.9 inches)78%extreme
October Weather22°C (72°F)132 mm (5.2 inches)79%very high
November Weather18°C (64°F)79 mm (3.1 inches)80%high
December Weather12°C (54°F)53 mm (2.1 inches)81%moderate

Compare Rui'an's Climate with Cities Worldwide