April Weather in Aya, Japan

Last updated: August 23, 2025

In April, the average temperature in Aya, Japan hovers around 15°C (60°F). Expect a range from a cool 2°C (36°F) to a comfortable 26°C (79°F). Be prepared for 141 mm (5.6 in) of precipitation spread over 10 days, and experience an average humidity of 79%, adding a touch of moisture to the air.

April Temperature in Aya

In April in Aya, the average temperature is 15°C (60°F). Maximums can reach 26°C (79°F), and minimums can be as low as 2°C (36°F). This variation in temperature makes it essential for travelers to pack layers to ensure comfort during their visit.

April Weather in Aya: Daily Temperature Highs, Lows, and Averages

The chart illustrates April temperature patterns in Aya, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Aya, April typically has an average temperature of 15°C (60°F), with highs reaching up to 26°C (79°F) and lows dropping to around 2°C (36°F).

Data source: Temperature data for Aya generated using information from the Copernicus Climate Change Service.

April Precipitation in Aya

In Aya in April, the total precipitation amount is 141 mm (5.6 in) over a period of 10 days.

April Precipitation Trends in Aya

The chart displays monthly precipitation patterns in Aya, with values for each month alongside April’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how April’s conditions compare to those of other months. In Aya, April typically receives around 141 mm (5.6 inches) of precipitation spread over approximately 10 days.

Data source: Precipitation data for April generated using information from the Copernicus Climate Change Service.

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Millimeters (mm) Inches (in)

April Humidity in Aya

In Aya in April, humidity is 79%. With an average temperature of 15°C (60°F), this humidity feels like a warm, enveloping blanket that can make traveling feel muggy and a bit stifling, requiring frequent breaks to stay refreshed and hydrated.

April Average Humidity in Aya

This chart illustrates the average monthly humidity levels in Aya, with April’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In April, average humidity in Aya is approximately 79%, offering insight into how humid the weather typically is during this month.

Data source: Humidity data for April generated using information from the Copernicus Climate Change Service.

April UV Index in Aya

In Aya in April, the maximum UV index reaches 10, which corresponds to a very high Exposure Category. With a time to burn of just 15 minutes, it's crucial to take precautions. For more detailed information, you can check the Hourly UV Index in Aya.

Maximum UV Index Levels in Aya for April

The chart shows the monthly maximum UV Index (UVI) for Aya in April, 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 April, the maximum UV index in Aya typically reaches 10, which falls under the very high exposure category.

Data source: Aya April 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 April Weather in Aya Compares to Other Months

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

This table compares monthly weather conditions in Aya, showing how April’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	6°C (44°F)	55 mm (2.2 inches)	72%	moderate
February Weather	8°C (46°F)	101 mm (4.0 inches)	68%	high
March Weather	12°C (53°F)	176 mm (6.9 inches)	72%	very high
April Weather	15°C (60°F)	141 mm (5.6 inches)	79%	very high
May Weather	19°C (67°F)	225 mm (8.9 inches)	83%	extreme
June Weather	22°C (72°F)	321 mm (12.6 inches)	86%	extreme
July Weather	26°C (79°F)	388 mm (15.3 inches)	90%	extreme
August Weather	27°C (81°F)	247 mm (9.7 inches)	85%	extreme
September Weather	24°C (76°F)	319 mm (12.5 inches)	80%	extreme
October Weather	19°C (67°F)	202 mm (8.0 inches)	78%	very high
November Weather	14°C (57°F)	87 mm (3.4 inches)	76%	high
December Weather	8°C (47°F)	71 mm (2.8 inches)	74%	moderate