June Weather in Iyo, Japan

Last updated: August 23, 2025

In June, the average temperature in Iyo, Japan reaches a pleasant 22°C (72°F), with a minimum of 14°C (57°F) and a maximum of 30°C (86°F). However, be prepared for some rain, as 215 mm (8.5 in) of precipitation can fall over 14 days. Humidity tends to be high, averaging 86%, creating a warm and tropical atmosphere.

June Temperature in Iyo

In June in Iyo, the average temperature is 22°C (72°F). Maximums can reach 30°C (86°F) and minimums can be as low as 14°C (57°F). This makes it an ideal time for travelers seeking pleasant weather for outdoor activities and exploration.

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

The chart illustrates June temperature patterns in Iyo, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Iyo, June typically has an average temperature of 22°C (72°F), with highs reaching up to 30°C (86°F) and lows dropping to around 14°C (57°F).

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

June Precipitation in Iyo

In Iyo in June, the precipitation amount is 215 mm (8.5 in) over a period of 14 days.

June Precipitation Trends in Iyo

The chart displays monthly precipitation patterns in Iyo, 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 Iyo, June typically receives around 215 mm (8.5 inches) of precipitation spread over approximately 14 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 Iyo

In Iyo in June, humidity is 86%. With an average temperature of 22°C (72°F), this humidity feels like a warm blanket wrapping around you as you travel, making it essential to stay hydrated and seek shade during the sun's peak hours.

June Average Humidity in Iyo

This chart illustrates the average monthly humidity levels in Iyo, 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 Iyo is approximately 86%, 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 Iyo

In Iyo 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 Iyo.

Maximum UV Index Levels in Iyo for June

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

Data source: Iyo 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 Iyo Compares to Other Months

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

This table compares monthly weather conditions in Iyo, showing how June’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
	Temperature	Precipitation	Humidity	UV
January Weather	5°C (42°F)	60 mm (2.4 inches)	74%	moderate
February Weather	6°C (43°F)	90 mm (3.6 inches)	70%	high
March Weather	10°C (50°F)	129 mm (5.1 inches)	70%	very high
April Weather	14°C (57°F)	135 mm (5.3 inches)	76%	very high
May Weather	18°C (65°F)	153 mm (6.0 inches)	82%	extreme
June Weather	22°C (72°F)	215 mm (8.5 inches)	86%	extreme
July Weather	26°C (79°F)	374 mm (14.7 inches)	91%	extreme
August Weather	27°C (81°F)	197 mm (7.7 inches)	88%	extreme
September Weather	24°C (75°F)	212 mm (8.4 inches)	85%	extreme
October Weather	19°C (66°F)	204 mm (8.0 inches)	82%	very high
November Weather	13°C (55°F)	61 mm (2.4 inches)	79%	high
December Weather	8°C (46°F)	69 mm (2.7 inches)	77%	moderate