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September Weather in Rainis, Indonesia

Last updated: August 23, 2025

In Rainis, Indonesia, the average temperature for September is a warm 27°C (82°F). Expect temperatures to range from a minimum of 24°C (76°F) to a maximum of 32°C (89°F). During this month, you can anticipate a precipitation amount of 243 mm (9.6 in) spread over about 23 days, with an average humidity of 80% adding to the tropical feel.

September Temperature in Rainis

In September in Rainis, the average temperature is 27°C (82°F). Maximum temperatures can reach 32°C (89°F), while minimums can dip as low as 24°C (76°F). Overall, it’s an ideal time for travelers seeking warm and pleasant weather.

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

The chart illustrates September temperature patterns in Rainis, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Rainis, September typically has an average temperature of 27°C (82°F), with highs reaching up to 32°C (89°F) and lows dropping to around 24°C (76°F).
JanFebMarAprMayJunJulAugSepOctNovDec818181828281818281828282
Data source: Temperature data for Rainis 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 Rainis

In Rainis in September, the precipitation amount is 243 mm (9.6 in) spread over 23 days, indicating a significant amount of rainfall during that period.

September Precipitation Trends in Rainis

The chart displays monthly precipitation patterns in Rainis, 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 Rainis, September typically receives around 243 mm (9.6 inches) of precipitation spread over approximately 23 days.
JanFebMarAprMayJunJulAugSepOctNovDec260136211179303339290186243197221237
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Rainis

In Rainis in September, humidity is 80%. With an average temperature of 27°C (82°F), this humidity feels like stepping into a thick blanket of warmth that hugs you relentlessly, making outdoor activities feel sluggish and exhausting.

September Average Humidity in Rainis

This chart illustrates the average monthly humidity levels in Rainis, 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 Rainis is approximately 80%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec82%87%87%83%77%77%77%78%80%77%76%78%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Rainis

In Rainis in September, the maximum UV index reaches an alarming 15, which falls into the extreme Exposure Category. With a time to burn of just 10 minutes, it's crucial to take precautions. For detailed information, you can check the Hourly UV Index in Rainis.

Maximum UV Index Levels in Rainis for September

The chart shows the monthly maximum UV Index (UVI) for Rainis 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 Rainis typically reaches 15, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec141616161513131415141412
Data source: Rainis 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 Rainis Compares to Other Months

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

This table compares monthly weather conditions in Rainis, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather27°C (81°F)260 mm (10.3 inches)82%extreme
February Weather27°C (81°F)136 mm (5.4 inches)87%extreme
March Weather27°C (81°F)211 mm (8.3 inches)87%extreme
April Weather28°C (82°F)179 mm (7.1 inches)83%extreme
May Weather28°C (82°F)303 mm (11.9 inches)77%extreme
June Weather27°C (82°F)339 mm (13.3 inches)77%extreme
July Weather27°C (81°F)290 mm (11.4 inches)77%extreme
August Weather28°C (82°F)186 mm (7.3 inches)78%extreme
September Weather27°C (82°F)243 mm (9.6 inches)80%extreme
October Weather28°C (82°F)197 mm (7.8 inches)77%extreme
November Weather28°C (82°F)221 mm (8.7 inches)76%extreme
December Weather28°C (82°F)237 mm (9.3 inches)78%extreme

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