nomadseason

December Weather in Ayase, Japan

Last updated: August 23, 2025

In Ayase, Japan, the average temperature in December hovers around 8°C (47°F). You'll experience a range from a chilly -1°C (30°F) to a pleasantly warm 21°C (71°F). Be prepared for some rain, as the area receives an average precipitation of 63 mm (2.5 in) over 8 days of the month, with humidity levels typically reaching 78%.

December Temperature in Ayase

In December in Ayase, the average temperature is 8°C (47°F). Maximum temperatures can reach 21°C (71°F), while minimum temperatures can drop as low as -1°C (30°F). Be prepared for a mix of mild and chilly weather during your travels.

December Weather in Ayase: Daily Temperature Highs, Lows, and Averages

The chart illustrates December temperature patterns in Ayase, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Ayase, December typically has an average temperature of 8°C (47°F), with highs reaching up to 21°C (71°F) and lows dropping to around -1°C (30°F).
JanFebMarAprMayJunJulAugSepOctNovDec424450576671788174655647
Data source: Temperature data for Ayase generated using information from the Copernicus Climate Change Service.
Choose your preferred temperature unit
The average of daily temperatures (24 hours) calculated across all days in the month.

December Precipitation in Ayase

In Ayase in December, the precipitation amount is 63 mm (2.5 in) spread over 8 days.

December Precipitation Trends in Ayase

The chart displays monthly precipitation patterns in Ayase, with values for each month alongside December’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how December’s conditions compare to those of other months. In Ayase, December typically receives around 63 mm (2.5 inches) of precipitation spread over approximately 8 days.
JanFebMarAprMayJunJulAugSepOctNovDec52521521251201712341241932768063
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

December Humidity in Ayase

In Ayase in December, humidity is 78%. With an average temperature of 8°C (47°F), this humidity feels like a chilly embrace, making travel invigorating yet damp, as the cool air wraps around you, emphasizing the need for layers to stay comfortable while exploring.

December Average Humidity in Ayase

This chart illustrates the average monthly humidity levels in Ayase, with December’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In December, average humidity in Ayase is approximately 78%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec76%74%70%74%82%88%93%90%86%83%80%78%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Ayase

In Ayase in December, the maximum UV index reaches 4, which corresponds to a moderate Exposure Category. With a time to burn of 30 minutes, it’s important to take precautions to protect your skin. You can find more details in the Hourly UV Index in Ayase for better planning.

Maximum UV Index Levels in Ayase for December

The chart shows the monthly maximum UV Index (UVI) for Ayase in December, 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 December, the maximum UV index in Ayase typically reaches 4, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec35891111111110754
Data source: Ayase December 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 December Weather in Ayase Compares to Other Months

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

This table compares monthly weather conditions in Ayase, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather5°C (42°F)52 mm (2.1 inches)76%moderate
February Weather7°C (44°F)52 mm (2.0 inches)74%moderate
March Weather10°C (51°F)151 mm (6.0 inches)70%very high
April Weather14°C (58°F)125 mm (4.9 inches)74%very high
May Weather19°C (66°F)120 mm (4.7 inches)81%extreme
June Weather22°C (71°F)171 mm (6.7 inches)88%extreme
July Weather25°C (78°F)234 mm (9.2 inches)93%extreme
August Weather27°C (81°F)124 mm (4.9 inches)90%extreme
September Weather23°C (75°F)193 mm (7.6 inches)86%very high
October Weather18°C (65°F)276 mm (10.9 inches)83%high
November Weather13°C (57°F)80 mm (3.1 inches)80%moderate
December Weather8°C (47°F)63 mm (2.5 inches)78%moderate

Compare Ayase's Climate with Cities Worldwide