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September Weather in Miyake, Japan

Last updated: August 23, 2025

In September in Miyake, Japan, the average temperature settles at a pleasant 26°C (79°F). Expect minimums of around 22°C (71°F) and maximums reaching 29°C (85°F). However, be prepared for humidity levels averaging a comfortable 82%, and a likelihood of precipitation, totaling 300 mm (11.8 in) over 20 days. Packing an umbrella might be a wise choice!

September Temperature in Miyake

In September in Miyake, the average temperature is 26°C (79°F). Maximum temperatures can reach 29°C (85°F), while minimums can dip as low as 22°C (71°F). This pleasant climate makes Miyake an ideal destination for travelers seeking warm weather and enjoyable outdoor activities.

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

The chart illustrates September temperature patterns in Miyake, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Miyake, September typically has an average temperature of 26°C (79°F), with highs reaching up to 29°C (85°F) and lows dropping to around 22°C (71°F).
JanFebMarAprMayJunJulAugSepOctNovDec545358626973798279736658
Data source: Temperature data for Miyake 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 Miyake

In Miyake in September, the precipitation amount is 300 mm (11.8 in) over a span of 20 days.

September Precipitation Trends in Miyake

The chart displays monthly precipitation patterns in Miyake, 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 Miyake, September typically receives around 300 mm (11.8 inches) of precipitation spread over approximately 20 days.
JanFebMarAprMayJunJulAugSepOctNovDec111102225136185284258111300346194135
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Miyake

In Miyake in September, humidity is 82%. With an average temperature of 26°C (79°F), this humidity feels like a warm blanket that envelops you, making outdoor activities feel more taxing and requiring frequent breaks to stay hydrated.

September Average Humidity in Miyake

This chart illustrates the average monthly humidity levels in Miyake, 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 Miyake is approximately 82%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec69%68%69%75%82%88%92%85%82%78%74%72%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Miyake

In Miyake 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 Miyake.

Maximum UV Index Levels in Miyake for September

The chart shows the monthly maximum UV Index (UVI) for Miyake 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 Miyake typically reaches 10, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec468101111121110764
Data source: Miyake 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 Miyake Compares to Other Months

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

This table compares monthly weather conditions in Miyake, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather12°C (54°F)111 mm (4.4 inches)69%moderate
February Weather12°C (54°F)102 mm (4.0 inches)68%high
March Weather15°C (58°F)225 mm (8.9 inches)69%very high
April Weather17°C (63°F)136 mm (5.3 inches)75%very high
May Weather20°C (69°F)185 mm (7.3 inches)82%extreme
June Weather23°C (74°F)284 mm (11.2 inches)88%extreme
July Weather26°C (79°F)258 mm (10.2 inches)92%extreme
August Weather28°C (82°F)111 mm (4.4 inches)85%extreme
September Weather26°C (79°F)300 mm (11.8 inches)82%very high
October Weather23°C (73°F)345 mm (13.6 inches)78%high
November Weather19°C (66°F)194 mm (7.6 inches)74%high
December Weather15°C (59°F)135 mm (5.3 inches)72%moderate

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