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September Weather in Miharu, Japan

Last updated: August 23, 2025

In September, the average temperature in Miharu, Japan hovers around 20°C (68°F), offering a pleasant climate for outdoor activities. Expect a minimum of 8°C (47°F) and a maximum that can reach up to 32°C (90°F). The region experiences 139 mm (5.5 in) of precipitation over 14 days, contributing to an average humidity of 84%. Enjoy the vibrant atmosphere while being prepared for the occasional shower!

September Temperature in Miharu

In September in Miharu, the average temperature is 20°C (68°F). Maximums can reach 32°C (90°F) while minimums can drop to as low as 8°C (47°F). This makes Miharu a favorable destination for travelers seeking mild weather with the potential for warmer days.

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

The chart illustrates September temperature patterns in Miharu, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Miharu, September typically has an average temperature of 20°C (68°F), with highs reaching up to 32°C (90°F) and lows dropping to around 8°C (47°F).
JanFebMarAprMayJunJulAugSepOctNovDec323441506167747768584736
Data source: Temperature data for Miharu 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 Miharu

In Miharu, in September, the precipitation amount is 139 mm (5.5 in) over the course of 14 days.

September Precipitation Trends in Miharu

The chart displays monthly precipitation patterns in Miharu, 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 Miharu, September typically receives around 139 mm (5.5 inches) of precipitation spread over approximately 14 days.
JanFebMarAprMayJunJulAugSepOctNovDec5344110991031002251231391903862
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Miharu

In Miharu in September humidity is 84%. With an average temperature of 20°C (68°F), this humidity feels like a warm, enveloping blanket, making travel a challenge as the air clings to your skin, and every step feels heavier in the mugginess.

September Average Humidity in Miharu

This chart illustrates the average monthly humidity levels in Miharu, 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 Miharu is approximately 84%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec76%75%72%73%80%87%93%90%84%80%77%77%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Miharu

In Miharu in September, the maximum UV index is 9, which corresponds to a very high Exposure Category. The time to burn is just 15 minutes, so it's essential to take precautions. For detailed information, you can check the Hourly UV Index in Miharu.

Maximum UV Index Levels in Miharu for September

The chart shows the monthly maximum UV Index (UVI) for Miharu 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 Miharu typically reaches 9, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec3579101111119653
Data source: Miharu 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 Miharu Compares to Other Months

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

This table compares monthly weather conditions in Miharu, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather0°C (32°F)53 mm (2.1 inches)76%moderate
February Weather1°C (34°F)44 mm (1.7 inches)75%moderate
March Weather5°C (42°F)110 mm (4.3 inches)72%high
April Weather10°C (50°F)99 mm (3.9 inches)73%very high
May Weather16°C (61°F)102 mm (4.0 inches)80%very high
June Weather19°C (67°F)100 mm (3.9 inches)87%extreme
July Weather23°C (74°F)225 mm (8.8 inches)92%extreme
August Weather25°C (77°F)123 mm (4.8 inches)90%extreme
September Weather20°C (68°F)139 mm (5.5 inches)84%very high
October Weather14°C (58°F)190 mm (7.5 inches)80%high
November Weather8°C (47°F)38 mm (1.5 inches)77%moderate
December Weather2°C (37°F)62 mm (2.4 inches)77%moderate

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