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October Weather in Tomamae, Japan

Last updated: August 23, 2025

In October, the average temperature in Tomamae, Japan is a crisp 12°C (54°F), with fluctuations ranging from a chilly 3°C (37°F) to a pleasant 22°C (71°F). Expect around 150 mm (5.9 in) of precipitation over 16 days, contributing to an average humidity of 79%. Whether you’re planning an adventure or simply enjoying the local culture, prepare for a mix of cool, damp weather!

October Temperature in Tomamae

In October in Tomamae, the average temperature is 12°C (54°F). The maximum can reach 22°C (71°F), and the minimum can be as low as 3°C (37°F). This mild climate makes Tomamae a great destination for travelers seeking comfortable outdoor activities and sightseeing opportunities.

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

The chart illustrates October temperature patterns in Tomamae, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Tomamae, October typically has an average temperature of 12°C (54°F), with highs reaching up to 22°C (71°F) and lows dropping to around 3°C (37°F).
JanFebMarAprMayJunJulAugSepOctNovDec242534435259697064544230
Data source: Temperature data for Tomamae 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 Tomamae

In Tomamae in October, the precipitation amount is 150 mm (5.9 in) spread over 16 days.

October Precipitation Trends in Tomamae

The chart displays monthly precipitation patterns in Tomamae, 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 Tomamae, October typically receives around 150 mm (5.9 inches) of precipitation spread over approximately 16 days.
JanFebMarAprMayJunJulAugSepOctNovDec6780786579879615884150154124
Data source: Precipitation data for October generated using information from the Copernicus Climate Change Service.
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October Humidity in Tomamae

In Tomamae in October, humidity is 79%. With an average temperature of 12°C (54°F), this humidity makes traveling feel quite muggy, leading to a sticky discomfort that can sap your energy and make outdoor activities less enjoyable.

October Average Humidity in Tomamae

This chart illustrates the average monthly humidity levels in Tomamae, 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 Tomamae is approximately 79%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec87%84%83%84%88%88%93%94%86%79%77%83%
Data source: Humidity data for October generated using information from the Copernicus Climate Change Service.

October UV Index in Tomamae

In Tomamae in October, the maximum UV index reaches 5, which corresponds to a moderate Exposure Category. Under these conditions, the estimated time to burn is approximately 30 minutes. For more details, you can check the Hourly UV Index in Tomamae.

Maximum UV Index Levels in Tomamae for October

The chart shows the monthly maximum UV Index (UVI) for Tomamae 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 Tomamae typically reaches 5, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec235789997532
Data source: Tomamae 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 Tomamae Compares to Other Months

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

This table compares monthly weather conditions in Tomamae, showing how October’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-5°C (24°F)67 mm (2.6 inches)87%low
February Weather-4°C (25°F)80 mm (3.1 inches)84%moderate
March Weather1°C (34°F)78 mm (3.1 inches)83%moderate
April Weather6°C (43°F)65 mm (2.6 inches)84%high
May Weather11°C (52°F)79 mm (3.1 inches)88%very high
June Weather15°C (59°F)87 mm (3.4 inches)88%very high
July Weather21°C (69°F)96 mm (3.8 inches)93%very high
August Weather21°C (70°F)158 mm (6.2 inches)94%very high
September Weather18°C (65°F)84 mm (3.3 inches)86%high
October Weather12°C (54°F)150 mm (5.9 inches)79%moderate
November Weather6°C (42°F)154 mm (6.1 inches)77%moderate
December Weather-1°C (30°F)124 mm (4.9 inches)83%low

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