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September Weather in Piis, Micronesia

Last updated: August 28, 2025

In Piis, Micronesia, the average temperature in September hovers around 28°C (82°F), with a comfortable range from a minimum of 25°C (78°F) to a maximum of 29°C (85°F). Expect 276 mm (10.9 in) of precipitation spread over 25 days, contributing to a high average humidity of 78%. It's a warm and humid month, perfect for those who enjoy tropical climates!

September Temperature in Piis

In September in Piis, the average temperature is 28°C (82°F), with maximums reaching 29°C (85°F) and minimums dropping to as low as 25°C (78°F). This mild climate makes it an ideal destination for travelers seeking pleasant weather.

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

The chart illustrates September temperature patterns in Piis, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Piis, September typically has an average temperature of 28°C (82°F), with highs reaching up to 29°C (85°F) and lows dropping to around 25°C (78°F).
JanFebMarAprMayJunJulAugSepOctNovDec818281818281818182828282
Data source: Temperature data for Piis 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 Piis

In Piis in September, the total precipitation amount is 276 mm (10.9 in) spread over 25 days.

September Precipitation Trends in Piis

The chart displays monthly precipitation patterns in Piis, 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 Piis, September typically receives around 276 mm (10.9 inches) of precipitation spread over approximately 25 days.
JanFebMarAprMayJunJulAugSepOctNovDec276178292242376311362261276298282374
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Piis

In Piis in September humidity is 78%. With an average temperature of 28°C (82°F), this humidity feels like a heavy blanket wrapping around you, making outdoor activities feel more exhausting and overwhelming, potentially leading to a slower pace while exploring.

September Average Humidity in Piis

This chart illustrates the average monthly humidity levels in Piis, 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 Piis is approximately 78%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec81%81%82%80%78%77%76%75%78%77%77%79%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Piis

In Piis 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 Piis, you can check here.

Maximum UV Index Levels in Piis for September

The chart shows the monthly maximum UV Index (UVI) for Piis 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 Piis typically reaches 14, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec131516171414141414141311
Data source: Piis 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 Piis Compares to Other Months

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

This table compares monthly weather conditions in Piis, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather27°C (82°F)276 mm (10.9 inches)81%extreme
February Weather28°C (82°F)178 mm (7.0 inches)81%extreme
March Weather27°C (81°F)292 mm (11.5 inches)82%extreme
April Weather27°C (82°F)242 mm (9.5 inches)80%extreme
May Weather28°C (82°F)376 mm (14.8 inches)78%extreme
June Weather27°C (82°F)311 mm (12.2 inches)77%extreme
July Weather27°C (81°F)362 mm (14.3 inches)76%extreme
August Weather27°C (82°F)261 mm (10.3 inches)75%extreme
September Weather28°C (82°F)276 mm (10.9 inches)78%extreme
October Weather28°C (82°F)298 mm (11.7 inches)77%extreme
November Weather28°C (82°F)282 mm (11.1 inches)77%extreme
December Weather28°C (82°F)374 mm (14.7 inches)79%extreme

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