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September Weather in Guay, Indonesia

Last updated: August 23, 2025

In September, the average temperature in Guay, Indonesia hovers around 28°C (82°F). Expect a range with minimums dipping to 23°C (74°F) and maximums soaring to 34°C (93°F). Be prepared for significant rainfall, with 262 mm (10.3 in) expected over 26 days, accompanied by a high average humidity of 90%.

September Temperature in Guay

In September in Guay, the average temperature is 28°C (82°F). Maximums can reach 34°C (93°F), while minimums can dip to as low as 23°C (74°F). This warm climate makes Guay an ideal destination for travelers seeking sunny weather and outdoor adventures.

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

The chart illustrates September temperature patterns in Guay, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Guay, September typically has an average temperature of 28°C (82°F), with highs reaching up to 34°C (93°F) and lows dropping to around 23°C (74°F).
JanFebMarAprMayJunJulAugSepOctNovDec818181818281818182828181
Data source: Temperature data for Guay 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 Guay

In Guay in September, the total precipitation amount is 262 mm (10.3 in), which occurs over the course of 26 days.

September Precipitation Trends in Guay

The chart displays monthly precipitation patterns in Guay, 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 Guay, September typically receives around 262 mm (10.3 inches) of precipitation spread over approximately 26 days.
JanFebMarAprMayJunJulAugSepOctNovDec208250297293289287313296262301297296
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Guay

In Guay in September, humidity is 90%. With an average temperature of 28°C (82°F), this humidity feels like a heavy blanket enveloping you, making travel feel stifling and exhausting, as each step feels laborious and sweat clings to your skin.

September Average Humidity in Guay

This chart illustrates the average monthly humidity levels in Guay, 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 Guay is approximately 90%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec89%89%88%90%88%90%89%90%90%89%89%89%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Guay

In Guay in September, the maximum UV index is 14, which corresponds to an extreme Exposure Category. The time to burn is just 10 minutes, so it's crucial to take precautions. For the detailed hourly UV index in Guay, you can check here.

Maximum UV Index Levels in Guay for September

The chart shows the monthly maximum UV Index (UVI) for Guay 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 Guay typically reaches 14, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec151717161411121414151414
Data source: Guay 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 Guay Compares to Other Months

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

This table compares monthly weather conditions in Guay, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather27°C (82°F)208 mm (8.2 inches)89%extreme
February Weather27°C (81°F)250 mm (9.9 inches)89%extreme
March Weather27°C (81°F)297 mm (11.7 inches)88%extreme
April Weather27°C (81°F)293 mm (11.6 inches)90%extreme
May Weather28°C (82°F)289 mm (11.4 inches)88%extreme
June Weather27°C (81°F)287 mm (11.3 inches)90%extreme
July Weather27°C (81°F)313 mm (12.3 inches)89%extreme
August Weather27°C (81°F)296 mm (11.7 inches)90%extreme
September Weather28°C (82°F)262 mm (10.3 inches)90%extreme
October Weather28°C (82°F)301 mm (11.9 inches)89%extreme
November Weather27°C (82°F)296 mm (11.7 inches)89%extreme
December Weather27°C (82°F)296 mm (11.7 inches)89%extreme

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