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September Weather in Tsuiki, Japan

Last updated: August 23, 2025

In September, the average temperature in Tsuiki, Japan hovers around 25°C (77°F). Expect a comfortable range, with minimums dipping to 16°C (62°F) and maximums soaring to 33°C (91°F). However, be prepared for a bit of rain, as 196 mm (7.7 in) of precipitation can be expected over 14 days, contributing to an average humidity of 84%.

September Temperature in Tsuiki

In September in Tsuiki, the average temperature is 25°C (77°F), with maximums reaching 33°C (91°F) and minimums dropping as low as 16°C (62°F). This mild climate makes Tsuiki an ideal destination for travelers seeking pleasant weather during this time of year.

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

The chart illustrates September temperature patterns in Tsuiki, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Tsuiki, September typically has an average temperature of 25°C (77°F), with highs reaching up to 33°C (91°F) and lows dropping to around 16°C (62°F).
JanFebMarAprMayJunJulAugSepOctNovDec444552596773808376685748
Data source: Temperature data for Tsuiki 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 Tsuiki

In Tsuiki in September, the total precipitation amount is 196 mm (7.7 in) occurring over the course of 14 days.

September Precipitation Trends in Tsuiki

The chart displays monthly precipitation patterns in Tsuiki, 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 Tsuiki, September typically receives around 196 mm (7.7 inches) of precipitation spread over approximately 14 days.
JanFebMarAprMayJunJulAugSepOctNovDec58781311261612063022351961244664
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Tsuiki

In Tsuiki in September, humidity is 84%. With an average temperature of 25°C (77°F), this humidity feels like a warm, enveloping blanket that clings to your skin, making outdoor activities challenging and prompting travelers to seek shade and stay hydrated.

September Average Humidity in Tsuiki

This chart illustrates the average monthly humidity levels in Tsuiki, 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 Tsuiki is approximately 84%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec75%71%71%78%84%86%92%91%84%83%81%79%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Tsuiki

In Tsuiki 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 Tsuiki.

Maximum UV Index Levels in Tsuiki for September

The chart shows the monthly maximum UV Index (UVI) for Tsuiki 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 Tsuiki typically reaches 11, which falls under the extreme exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec468111111121211764
Data source: Tsuiki 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 Tsuiki Compares to Other Months

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

This table compares monthly weather conditions in Tsuiki, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather7°C (44°F)57 mm (2.3 inches)75%moderate
February Weather7°C (45°F)78 mm (3.1 inches)71%high
March Weather11°C (52°F)131 mm (5.1 inches)71%very high
April Weather15°C (59°F)126 mm (5.0 inches)78%extreme
May Weather19°C (67°F)161 mm (6.4 inches)84%extreme
June Weather23°C (73°F)206 mm (8.1 inches)86%extreme
July Weather27°C (80°F)302 mm (11.9 inches)92%extreme
August Weather28°C (83°F)235 mm (9.2 inches)91%extreme
September Weather25°C (77°F)196 mm (7.7 inches)84%extreme
October Weather20°C (68°F)124 mm (4.9 inches)83%high
November Weather14°C (58°F)46 mm (1.8 inches)81%high
December Weather9°C (48°F)64 mm (2.5 inches)79%moderate

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