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September Weather in Sarabetsu, Japan

Last updated: August 23, 2025

In September, the average temperature in Sarabetsu, Japan hovers around 17°C (62°F), with a minimum of 3°C (38°F) and peaking at a toasty 32°C (90°F). Expect 142 mm (5.6 in) of precipitation spread over 13 days, contributing to a notably high average humidity of 89%. Plan accordingly for a mix of warmth and wetness!

September Temperature in Sarabetsu

In September in Sarabetsu, the average temperature is 17°C (62°F). Maximum temperatures can reach 32°C (90°F), while minimums can drop as low as 3°C (38°F). This diverse temperature range makes Sarabetsu an ideal destination for travelers seeking both warmth and cool, pleasant evenings.

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

The chart illustrates September temperature patterns in Sarabetsu, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Sarabetsu, September typically has an average temperature of 17°C (62°F), with highs reaching up to 32°C (90°F) and lows dropping to around 3°C (38°F).
JanFebMarAprMayJunJulAugSepOctNovDec192132435459666762513926
Data source: Temperature data for Sarabetsu 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 Sarabetsu

In Sarabetsu in September, the precipitation amount is 142 mm (5.6 in) spread over 13 days.

September Precipitation Trends in Sarabetsu

The chart displays monthly precipitation patterns in Sarabetsu, 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 Sarabetsu, September typically receives around 142 mm (5.6 inches) of precipitation spread over approximately 13 days.
JanFebMarAprMayJunJulAugSepOctNovDec57571009387107901711421708555
Data source: Precipitation data for September generated using information from the Copernicus Climate Change Service.
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September Humidity in Sarabetsu

In Sarabetsu in September, humidity is 89%. With an average temperature of 17°C (62°F), this humidity feels like a warm, heavy blanket enveloping you, making every step feel sluggish and the air thick to breathe, which can be quite challenging for traveling.

September Average Humidity in Sarabetsu

This chart illustrates the average monthly humidity levels in Sarabetsu, 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 Sarabetsu is approximately 89%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec84%83%83%83%86%88%93%96%89%83%80%79%
Data source: Humidity data for September generated using information from the Copernicus Climate Change Service.

September UV Index in Sarabetsu

In Sarabetsu in September, the maximum UV index is 8, which corresponds to a very high Exposure Category. This means that the time to burn is only 15 minutes. For more detailed information, you can refer to the Hourly UV Index in Sarabetsu.

Maximum UV Index Levels in Sarabetsu for September

The chart shows the monthly maximum UV Index (UVI) for Sarabetsu 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 Sarabetsu typically reaches 8, which falls under the very high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec345891010108632
Data source: Sarabetsu 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 Sarabetsu Compares to Other Months

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

This table compares monthly weather conditions in Sarabetsu, showing how September’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-7°C (19°F)56 mm (2.2 inches)84%moderate
February Weather-6°C (21°F)57 mm (2.2 inches)83%moderate
March Weather0°C (33°F)100 mm (3.9 inches)83%moderate
April Weather6°C (43°F)93 mm (3.6 inches)83%very high
May Weather12°C (55°F)87 mm (3.4 inches)86%very high
June Weather15°C (60°F)107 mm (4.2 inches)88%very high
July Weather19°C (67°F)90 mm (3.6 inches)93%very high
August Weather20°C (68°F)171 mm (6.7 inches)96%very high
September Weather17°C (62°F)142 mm (5.6 inches)89%very high
October Weather11°C (52°F)170 mm (6.7 inches)83%high
November Weather4°C (40°F)85 mm (3.3 inches)80%moderate
December Weather-4°C (26°F)55 mm (2.2 inches)79%low

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