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September Weather in Sarmi, Indonesia

Last updated: August 23, 2025

In Sarmi, Indonesia, the average temperature in September hovers around 28°C (83°F), with a comfortable minimum of 25°C (77°F) and a warm maximum of 32°C (90°F). Expect 206 mm (8.1 in) of precipitation spread over approximately 26 days, contributing to an average humidity level of 78%. Whether you're planning an outdoor adventure or a cozy retreat, be prepared for a mix of warmth and showers!

September Temperature in Sarmi

In September in Sarmi, the average temperature is 28°C (83°F). Maximum temperatures can reach 32°C (90°F), while minimums may drop to 25°C (77°F). This warm climate makes Sarmi an ideal destination for travelers seeking sun and pleasant weather during this time.

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

The chart illustrates September temperature patterns in Sarmi, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Sarmi, September typically has an average temperature of 28°C (83°F), with highs reaching up to 32°C (90°F) and lows dropping to around 25°C (77°F).
JanFebMarAprMayJunJulAugSepOctNovDec828282828382828282838383
Data source: Temperature data for Sarmi 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 Sarmi

In Sarmi in September, the precipitation amount is 206 mm (8.1 in) over a duration of 26 days.

September Precipitation Trends in Sarmi

The chart displays monthly precipitation patterns in Sarmi, 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 Sarmi, September typically receives around 206 mm (8.1 inches) of precipitation spread over approximately 26 days.
JanFebMarAprMayJunJulAugSepOctNovDec168244271262235295290259206208227276
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Sarmi

In Sarmi in September, humidity is 78%. With an average temperature of 28°C (83°F), this humidity feels like a heavy blanket enveloping you, making outdoor activities perspire more quickly and requiring frequent breaks in the shade for comfort.

September Average Humidity in Sarmi

This chart illustrates the average monthly humidity levels in Sarmi, 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 Sarmi is approximately 78%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec76%77%75%76%75%76%76%79%79%77%77%76%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Sarmi

In Sarmi 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 Sarmi.

Maximum UV Index Levels in Sarmi for September

The chart shows the monthly maximum UV Index (UVI) for Sarmi 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 Sarmi typically reaches 15, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec151617161412121415151414
Data source: Sarmi 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 Sarmi Compares to Other Months

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

This table compares monthly weather conditions in Sarmi, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather28°C (83°F)168 mm (6.6 inches)76%extreme
February Weather28°C (82°F)244 mm (9.6 inches)76%extreme
March Weather28°C (82°F)271 mm (10.7 inches)75%extreme
April Weather28°C (83°F)262 mm (10.3 inches)76%extreme
May Weather28°C (83°F)234 mm (9.2 inches)75%extreme
June Weather28°C (82°F)294 mm (11.6 inches)76%extreme
July Weather28°C (82°F)289 mm (11.4 inches)76%extreme
August Weather28°C (82°F)259 mm (10.2 inches)79%extreme
September Weather28°C (83°F)206 mm (8.1 inches)78%extreme
October Weather28°C (83°F)208 mm (8.2 inches)77%extreme
November Weather28°C (83°F)227 mm (8.9 inches)76%extreme
December Weather28°C (83°F)276 mm (10.8 inches)76%extreme

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