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October Weather in Shiroishi, Japan

Last updated: August 23, 2025

In October, the average temperature in Shiroishi, Japan hovers around 14°C (58°F), with a minimum dropping to 2°C (37°F) and a maximum reaching 28°C (82°F). Expect about 194 mm (7.6 in) of precipitation spread over 12 days, complemented by an average humidity of 80%. Whether you're planning outdoor activities or a cozy day indoors, be prepared for a mix of weather!

October Temperature in Shiroishi

In October in Shiroishi, the average temperature is 14°C (58°F), with maximums reaching up to 28°C (82°F) and minimums dropping as low as 2°C (37°F). This range makes it an ideal time for travelers to enjoy a variety of outdoor activities, while also being prepared for cooler evenings.

October Weather in Shiroishi: Daily Temperature Highs, Lows, and Averages

The chart illustrates October temperature patterns in Shiroishi, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Shiroishi, October typically has an average temperature of 14°C (58°F), with highs reaching up to 28°C (82°F) and lows dropping to around 2°C (37°F).
JanFebMarAprMayJunJulAugSepOctNovDec313241496066737668574636
Data source: Temperature data for Shiroishi 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.

October Precipitation in Shiroishi

In Shiroishi in October, the precipitation amount is 194 mm (7.6 in) over the course of 12 days.

October Precipitation Trends in Shiroishi

The chart displays monthly precipitation patterns in Shiroishi, with values for each month alongside October’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how October’s conditions compare to those of other months. In Shiroishi, October typically receives around 194 mm (7.6 inches) of precipitation spread over approximately 12 days.
JanFebMarAprMayJunJulAugSepOctNovDec79691121091061002451831401944687
Data source: Precipitation data for October generated using information from the Copernicus Climate Change Service.
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October Humidity in Shiroishi

In Shiroishi in October humidity is 80%. With an average temperature of 14°C (58°F), this humidity feels like a warm blanket wrapping around you, making outdoor activities sweltering and uncomfortable for travel.

October Average Humidity in Shiroishi

This chart illustrates the average monthly humidity levels in Shiroishi, with October’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In October, average humidity in Shiroishi is approximately 80%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec76%75%72%73%80%87%93%90%84%80%77%77%
Data source: Humidity data for October generated using information from the Copernicus Climate Change Service.

October UV Index in Shiroishi

In Shiroishi in October, the maximum UV index is 6, which corresponds to a high Exposure Category. The time to burn is approximately 25 minutes. To find the hourly UV index in Shiroishi, you can refer to this Hourly UV Index in Shiroishi.

Maximum UV Index Levels in Shiroishi for October

The chart shows the monthly maximum UV Index (UVI) for Shiroishi in October, 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 October, the maximum UV index in Shiroishi typically reaches 6, which falls under the high exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec3579101011119643
Data source: Shiroishi October 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 October Weather in Shiroishi Compares to Other Months

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

This table compares monthly weather conditions in Shiroishi, showing how October’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-1°C (31°F)79 mm (3.1 inches)76%moderate
February Weather0°C (33°F)69 mm (2.7 inches)75%moderate
March Weather5°C (41°F)112 mm (4.4 inches)72%high
April Weather9°C (49°F)109 mm (4.3 inches)73%very high
May Weather16°C (60°F)106 mm (4.2 inches)80%very high
June Weather19°C (66°F)100 mm (3.9 inches)87%very high
July Weather23°C (74°F)245 mm (9.6 inches)92%extreme
August Weather24°C (76°F)183 mm (7.2 inches)90%extreme
September Weather20°C (68°F)140 mm (5.5 inches)84%very high
October Weather14°C (58°F)194 mm (7.6 inches)80%high
November Weather8°C (47°F)46 mm (1.8 inches)77%moderate
December Weather2°C (36°F)87 mm (3.4 inches)77%moderate

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