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September Weather in Minamiise, Japan

Last updated: August 23, 2025

In September, the average temperature in Minamiise, Japan typically hovers around 26°C (78°F), with a comfortable minimum of 19°C (67°F) and a pleasant maximum of 31°C (89°F). However, be prepared for frequent showers, as precipitation averages 255 mm (10.0 in) over 19 days during this month. With an average humidity of 87%, it's a time when the air is thick and vibrant, perfect for those who enjoy a lush, tropical atmosphere.

September Temperature in Minamiise

In September in Minamiise, the average temperature is 26°C (78°F). The maximum can reach 31°C (89°F), while the minimum can drop as low as 19°C (67°F). This mild weather makes it an ideal time for traveling and exploring the region’s attractions.

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

The chart illustrates September temperature patterns in Minamiise, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Minamiise, September typically has an average temperature of 26°C (78°F), with highs reaching up to 31°C (89°F) and lows dropping to around 19°C (67°F).
JanFebMarAprMayJunJulAugSepOctNovDec484854616873798378706152
Data source: Temperature data for Minamiise 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 Minamiise

In Minamiise in September, the precipitation amount is 255 mm (10.0 in) over the course of 19 days.

September Precipitation Trends in Minamiise

The chart displays monthly precipitation patterns in Minamiise, 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 Minamiise, September typically receives around 255 mm (10.0 inches) of precipitation spread over approximately 19 days.
JanFebMarAprMayJunJulAugSepOctNovDec63671611461782572641512554429492
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Minamiise

In Minamiise in September humidity is 87%. With an average temperature of 26°C (78°F), this humidity feels like walking through a warm, damp blanket, making outdoor activities tiring and sweat-inducing for travelers.

September Average Humidity in Minamiise

This chart illustrates the average monthly humidity levels in Minamiise, 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 Minamiise is approximately 87%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec82%79%74%76%83%87%93%91%87%85%83%83%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Minamiise

In Minamiise in September, the maximum UV index reaches 10, which corresponds to a very high Exposure Category. With a time to burn of just 15 minutes, it's crucial to take precautions. For more detailed information, you can check the Hourly UV Index in Minamiise.

Maximum UV Index Levels in Minamiise for September

The chart shows the monthly maximum UV Index (UVI) for Minamiise 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 Minamiise typically reaches 10, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec458101111121110754
Data source: Minamiise 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 Minamiise Compares to Other Months

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

This table compares monthly weather conditions in Minamiise, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather9°C (48°F)63 mm (2.5 inches)82%moderate
February Weather9°C (49°F)67 mm (2.7 inches)79%moderate
March Weather12°C (55°F)161 mm (6.3 inches)74%very high
April Weather16°C (61°F)145 mm (5.7 inches)76%very high
May Weather20°C (68°F)178 mm (7.0 inches)83%extreme
June Weather23°C (73°F)257 mm (10.1 inches)87%extreme
July Weather26°C (80°F)264 mm (10.4 inches)93%extreme
August Weather28°C (83°F)151 mm (6.0 inches)91%extreme
September Weather26°C (78°F)255 mm (10.0 inches)87%very high
October Weather21°C (70°F)442 mm (17.4 inches)85%high
November Weather16°C (61°F)94 mm (3.7 inches)83%moderate
December Weather11°C (53°F)92 mm (3.6 inches)83%moderate

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