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January Weather in Rifu, Japan

Last updated: August 23, 2025

In January, the average temperature in Rifu, Japan hovers around 3°C (37°F), with a range that can dip to a chilly -5°C (23°F) and peak at a moderate 13°C (55°F). Expect 52 mm (2.0 in) of rain spread across approximately 9 days, contributing to an average humidity of 80%. Be prepared for a mix of cool temperatures and damp conditions!

January Temperature in Rifu

In January in Rifu, the average temperature is 3°C (37°F). The maximum can reach 13°C (55°F) and the minimum can be as low as -5°C (23°F). Be sure to pack warm clothing and prepare for chilly conditions if you plan to travel during this time.

January Weather in Rifu: Daily Temperature Highs, Lows, and Averages

The chart illustrates January temperature patterns in Rifu, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Rifu, January typically has an average temperature of 3°C (37°F), with highs reaching up to 13°C (55°F) and lows dropping to around -5°C (23°F).
JanFebMarAprMayJunJulAugSepOctNovDec373844506066737771625241
Data source: Temperature data for Rifu 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 Rifu

In Rifu in January, the precipitation amount is 52 mm (2.0 in) over a span of 9 days.

January Precipitation Trends in Rifu

The chart displays monthly precipitation patterns in Rifu, 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 Rifu, January typically receives around 52 mm (2.0 inches) of precipitation spread over approximately 9 days.
JanFebMarAprMayJunJulAugSepOctNovDec5242114113111992272131642293958
Data source: Precipitation data for January generated using information from the Copernicus Climate Change Service.
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January Humidity in Rifu

In Rifu in January, humidity is 80%. With an average temperature of 3°C (37°F), this humidity feels like a damp blanket wrapping around you, making outdoor adventures less enjoyable and prompting you to seek cozy indoor activities instead.

January Average Humidity in Rifu

This chart illustrates the average monthly humidity levels in Rifu, 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 Rifu 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 Rifu

In Rifu 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 Rifu, you can check the information here.

Maximum UV Index Levels in Rifu for January

The chart shows the monthly maximum UV Index (UVI) for Rifu 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 Rifu typically reaches 3, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec3478101011119643
Data source: Rifu 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 Rifu Compares to Other Months

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

This table compares monthly weather conditions in Rifu, showing how January’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather3°C (37°F)52 mm (2.0 inches)80%moderate
February Weather3°C (38°F)42 mm (1.7 inches)79%moderate
March Weather7°C (44°F)114 mm (4.5 inches)77%high
April Weather10°C (51°F)113 mm (4.5 inches)75%very high
May Weather16°C (61°F)111 mm (4.4 inches)80%very high
June Weather19°C (67°F)99 mm (3.9 inches)87%very high
July Weather23°C (74°F)227 mm (8.9 inches)92%extreme
August Weather25°C (77°F)213 mm (8.4 inches)92%extreme
September Weather22°C (72°F)163 mm (6.4 inches)86%very high
October Weather17°C (62°F)229 mm (9.0 inches)82%high
November Weather11°C (52°F)39 mm (1.5 inches)79%moderate
December Weather5°C (42°F)58 mm (2.3 inches)80%moderate

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