June Weather in Iruma, Japan

Last updated: August 23, 2025

In June, the average temperature in Iruma, Japan is a comfortable 20°C (69°F). Expect a minimum of 11°C (52°F) and a maximum of 31°C (88°F). This month also brings about 209 mm (8.2 in) of precipitation over approximately 19 days, contributing to a high average humidity of 88%. Enjoy the lush scenery that accompanies these cozy temperatures!

June Temperature in Iruma

In June in Iruma, the average temperature is 20°C (69°F). The maximum can reach 31°C (88°F), and the minimum can be as low as 11°C (52°F). This makes it a great time to explore Iruma, with comfortable temperatures for outdoor activities and sightseeing.

June Weather in Iruma: Daily Temperature Highs, Lows, and Averages

The chart illustrates June temperature patterns in Iruma, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Iruma, June typically has an average temperature of 20°C (69°F), with highs reaching up to 31°C (88°F) and lows dropping to around 11°C (52°F).

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

June Precipitation in Iruma

In Iruma in June, the total precipitation amount is 209 mm (8.2 in) spread over 19 days.

June Precipitation Trends in Iruma

The chart displays monthly precipitation patterns in Iruma, with values for each month alongside June’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how June’s conditions compare to those of other months. In Iruma, June typically receives around 209 mm (8.2 inches) of precipitation spread over approximately 19 days.

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

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Millimeters (mm) Inches (in)

June Humidity in Iruma

In Iruma in June, humidity is 88%. With an average temperature of 20°C (69°F), this humidity feels like a warm blanket enveloping you, making travel feel both sticky and sluggish, as every step carries the weight of the thick, damp air.

June Average Humidity in Iruma

This chart illustrates the average monthly humidity levels in Iruma, with June’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In June, average humidity in Iruma is approximately 88%, offering insight into how humid the weather typically is during this month.

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

June UV Index in Iruma

In Iruma in June, the maximum UV index reaches 11, which corresponds to an extreme Exposure Category. With a time to burn of just 10 minutes, it's essential to take precautions. For more details, you can check the Hourly UV Index in Iruma.

Maximum UV Index Levels in Iruma for June

The chart shows the monthly maximum UV Index (UVI) for Iruma in June, 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 June, the maximum UV index in Iruma typically reaches 11, which falls under the extreme exposure category.

Data source: Iruma June 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 June Weather in Iruma Compares to Other Months

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

This table compares monthly weather conditions in Iruma, showing how June’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	3°C (37°F)	53 mm (2.1 inches)	76%	moderate
February Weather	4°C (40°F)	62 mm (2.4 inches)	74%	high
March Weather	8°C (47°F)	166 mm (6.5 inches)	70%	very high
April Weather	12°C (54°F)	150 mm (5.9 inches)	74%	very high
May Weather	17°C (64°F)	148 mm (5.8 inches)	81%	extreme
June Weather	20°C (69°F)	209 mm (8.2 inches)	88%	extreme
July Weather	24°C (76°F)	312 mm (12.3 inches)	93%	extreme
August Weather	26°C (79°F)	195 mm (7.7 inches)	90%	extreme
September Weather	22°C (71°F)	247 mm (9.7 inches)	86%	very high
October Weather	16°C (61°F)	346 mm (13.6 inches)	83%	high
November Weather	11°C (52°F)	72 mm (2.8 inches)	80%	moderate
December Weather	5°C (42°F)	62 mm (2.4 inches)	78%	moderate