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January Weather in Onagawa Cho, Japan

Last updated: August 23, 2025

In January, the average temperature in Onagawa Cho, Japan hovers around 3°C (39°F). Expect temperatures to dip as low as -4°C (24°F) and potentially reach a comfortable 12°C (54°F). During this period, 47 mm (1.8 in) of precipitation is likely to fall over 8 days, contributing to an average humidity level of 80%.

January Temperature in Onagawa Cho

In January in Onagawa Cho, the average temperature is 3°C (39°F), with a maximum that can reach 12°C (54°F) and a minimum that can drop to -4°C (24°F). Travelers should be prepared for chilly temperatures and pack accordingly for both warmer and colder weather.

January Weather in Onagawa Cho: Daily Temperature Highs, Lows, and Averages

The chart illustrates January temperature patterns in Onagawa Cho, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Onagawa Cho, January typically has an average temperature of 3°C (39°F), with highs reaching up to 12°C (54°F) and lows dropping to around -4°C (24°F).
JanFebMarAprMayJunJulAugSepOctNovDec383843495763707571635343
Data source: Temperature data for Onagawa Cho 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.

January Precipitation in Onagawa Cho

In Onagawa Cho in January, the precipitation amount is 47 mm (1.8 in) over the course of 8 days.

January Precipitation Trends in Onagawa Cho

The chart displays monthly precipitation patterns in Onagawa Cho, with values for each month alongside January’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how January’s conditions compare to those of other months. In Onagawa Cho, January typically receives around 47 mm (1.8 inches) of precipitation spread over approximately 8 days.
JanFebMarAprMayJunJulAugSepOctNovDec4742107114110961731681412144463
Data source: Precipitation data for January generated using information from the Copernicus Climate Change Service.
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January Humidity in Onagawa Cho

In Onagawa Cho in January, humidity is 80%. With an average temperature of 3°C (39°F), this humidity feels like you are wrapped in a damp, chilly blanket, making it quite uncomfortable for traveling.

January Average Humidity in Onagawa Cho

This chart illustrates the average monthly humidity levels in Onagawa Cho, with January’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In January, average humidity in Onagawa Cho is approximately 80%, 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 January generated using information from the Copernicus Climate Change Service.

January UV Index in Onagawa Cho

In Onagawa Cho in January, the maximum UV index is 3, which corresponds to a moderate Exposure Category. The time to burn is approximately 30 minutes. For more details on the hourly UV index in Onagawa Cho, you can check the information here.

Maximum UV Index Levels in Onagawa Cho for January

The chart shows the monthly maximum UV Index (UVI) for Onagawa Cho in January, 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 January, the maximum UV index in Onagawa Cho typically reaches 3, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec3468101010119643
Data source: Onagawa Cho January 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 January Weather in Onagawa Cho Compares to Other Months

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

This table compares monthly weather conditions in Onagawa Cho, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather3°C (39°F)47 mm (1.8 inches)80%moderate
February Weather4°C (39°F)42 mm (1.6 inches)79%moderate
March Weather6°C (44°F)107 mm (4.2 inches)77%high
April Weather9°C (49°F)114 mm (4.5 inches)75%very high
May Weather14°C (57°F)110 mm (4.3 inches)80%very high
June Weather17°C (63°F)96 mm (3.8 inches)87%very high
July Weather21°C (71°F)173 mm (6.8 inches)92%very high
August Weather24°C (75°F)167 mm (6.6 inches)92%extreme
September Weather22°C (71°F)141 mm (5.5 inches)86%very high
October Weather17°C (63°F)214 mm (8.4 inches)82%high
November Weather12°C (53°F)44 mm (1.7 inches)79%moderate
December Weather6°C (43°F)63 mm (2.5 inches)80%moderate

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