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September Weather in Kurihara, Japan

Last updated: August 23, 2025

In September, the average temperature in Kurihara, Japan hovers around 21°C (69°F), offering a pleasant climate for outdoor activities. However, be prepared for fluctuations, as temperatures can dip to a chilly 7°C (44°F) and soar to a sweltering 34°C (94°F). Keep your umbrella handy—139 mm (5.5 in) of precipitation is expected over approximately 15 days. With an average humidity of 86%, it's wise to stay hydrated and enjoy the vibrant atmosphere!

September Temperature in Kurihara

In September in Kurihara, the average temperature is 21°C (69°F). Maximums can reach 34°C (94°F), and minimums can be as low as 7°C (44°F). It's essential to pack layers to stay comfortable throughout the day, but don't forget your sunscreen for the warmer hours!

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

The chart illustrates September temperature patterns in Kurihara, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Kurihara, September typically has an average temperature of 21°C (69°F), with highs reaching up to 34°C (94°F) and lows dropping to around 7°C (44°F).
JanFebMarAprMayJunJulAugSepOctNovDec333542506167747769594737
Data source: Temperature data for Kurihara 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 Kurihara

In Kurihara in September, the precipitation amount is 139 mm (5.5 in), occurring over 15 days.

September Precipitation Trends in Kurihara

The chart displays monthly precipitation patterns in Kurihara, 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 Kurihara, September typically receives around 139 mm (5.5 inches) of precipitation spread over approximately 15 days.
JanFebMarAprMayJunJulAugSepOctNovDec59581101181101282222181391845171
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Kurihara

In Kurihara in September humidity is 86%. With an average temperature of 21°C (69°F), this humidity feels like a thick blanket enveloping you, making every step feel heavier and more deliberate while traveling. The air clings to your skin, creating a sticky sensation that might slow you down, but the vibrant sights and sounds around you encourage exploration despite the sultry atmosphere.

September Average Humidity in Kurihara

This chart illustrates the average monthly humidity levels in Kurihara, 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 Kurihara is approximately 86%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec80%79%77%75%80%87%92%92%86%82%79%80%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Kurihara

In Kurihara 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 Kurihara.

Maximum UV Index Levels in Kurihara for September

The chart shows the monthly maximum UV Index (UVI) for Kurihara 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 Kurihara typically reaches 9, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec347891011119643
Data source: Kurihara 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 Kurihara Compares to Other Months

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

This table compares monthly weather conditions in Kurihara, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather0°C (33°F)59 mm (2.3 inches)80%moderate
February Weather2°C (35°F)58 mm (2.3 inches)79%moderate
March Weather6°C (42°F)110 mm (4.3 inches)77%high
April Weather10°C (50°F)117 mm (4.6 inches)75%very high
May Weather16°C (61°F)110 mm (4.3 inches)80%very high
June Weather19°C (67°F)128 mm (5.0 inches)87%very high
July Weather23°C (74°F)222 mm (8.7 inches)92%extreme
August Weather25°C (77°F)218 mm (8.6 inches)92%extreme
September Weather21°C (69°F)139 mm (5.5 inches)86%very high
October Weather15°C (59°F)184 mm (7.2 inches)82%high
November Weather8°C (47°F)51 mm (2.0 inches)79%moderate
December Weather3°C (37°F)71 mm (2.8 inches)80%moderate

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