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September Weather in Satsumasendai, Japan

Last updated: August 23, 2025

In September, the average temperature in Satsumasendai, Japan is a pleasant 26°C (79°F). Expect a minimum of 20°C (68°F) and a maximum of 33°C (91°F), creating a comfortable climate for outdoor activities. However, prepare for some rain, as 278 mm (10.9 in) of precipitation can fall over 17 days. With an average humidity of 80%, make sure to stay hydrated while enjoying the warmth!

September Temperature in Satsumasendai

In September in Satsumasendai, the average temperature is 26°C (79°F). Maximum temperatures can reach 33°C (91°F), while minimums may drop to as low as 20°C (68°F). This pleasant and warm climate makes Satsumasendai an ideal destination for travelers seeking comfortable weather.

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

The chart illustrates September temperature patterns in Satsumasendai, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Satsumasendai, September typically has an average temperature of 26°C (79°F), with highs reaching up to 33°C (91°F) and lows dropping to around 20°C (68°F).
JanFebMarAprMayJunJulAugSepOctNovDec505156626974818379726253
Data source: Temperature data for Satsumasendai 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 Satsumasendai

In Satsumasendai in September, the precipitation amount is 278 mm (10.9 in) occurring over the course of 17 days.

September Precipitation Trends in Satsumasendai

The chart displays monthly precipitation patterns in Satsumasendai, 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 Satsumasendai, September typically receives around 278 mm (10.9 inches) of precipitation spread over approximately 17 days.
JanFebMarAprMayJunJulAugSepOctNovDec67114178162264376443229278141111102
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Satsumasendai

In Satsumasendai in September humidity is 80%. With an average temperature of 26°C (79°F), this humidity feels like a heavy blanket, making outdoor activities feel sticky and exhausting, potentially dampening the travel experience and necessitating frequent breaks to cool down and hydrate.

September Average Humidity in Satsumasendai

This chart illustrates the average monthly humidity levels in Satsumasendai, 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 Satsumasendai is approximately 80%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec72%68%72%79%83%86%90%85%80%78%76%75%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Satsumasendai

In Satsumasendai in September, the maximum UV index reaches 11, which corresponds to an extreme Exposure Category. With a time to burn of just 10 minutes, it's essential to take precautions. For more details, you can check the Hourly UV Index in Satsumasendai.

Maximum UV Index Levels in Satsumasendai for September

The chart shows the monthly maximum UV Index (UVI) for Satsumasendai 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 Satsumasendai typically reaches 11, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec5610111212121311864
Data source: Satsumasendai 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 Satsumasendai Compares to Other Months

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

This table compares monthly weather conditions in Satsumasendai, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather10°C (51°F)67 mm (2.6 inches)72%moderate
February Weather10°C (51°F)114 mm (4.5 inches)68%high
March Weather13°C (56°F)178 mm (7.0 inches)72%very high
April Weather17°C (62°F)162 mm (6.4 inches)79%extreme
May Weather20°C (69°F)264 mm (10.4 inches)83%extreme
June Weather24°C (75°F)376 mm (14.8 inches)86%extreme
July Weather27°C (81°F)443 mm (17.4 inches)90%extreme
August Weather28°C (83°F)228 mm (9.0 inches)85%extreme
September Weather26°C (79°F)278 mm (10.9 inches)80%extreme
October Weather22°C (72°F)141 mm (5.6 inches)78%very high
November Weather17°C (63°F)111 mm (4.4 inches)76%high
December Weather12°C (54°F)102 mm (4.0 inches)74%moderate

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